There are learners who cannot solve practical problems in spite of mastering basic scientific knowledge and formula necessary for the solution. One of the reasons might be attributed to the lack in metacognitive abili...There are learners who cannot solve practical problems in spite of mastering basic scientific knowledge and formula necessary for the solution. One of the reasons might be attributed to the lack in metacognitive abilities. The aim of this study was to compare the metacognitive characteristics between non-major and major students in electric engineering and clarify the difference of metacognitive process between these two groups when solving basic problems of electronic circuit. In the experiment, the solving process was compared between non-major and major students in electric engineering using five basic problems. We found that the scores on prediction of result and confidence of own answer differed significantly between non-major and major students, and inferred that the difference of performance was due to the lack in metacognitive ability, especially the plan and the execution abilities. Both prediction of results and confidence of own answer were also found to play a significant role in effective problem solving as important components （subsystems） of metacognition.展开更多
This article focuses on electric power engineering and expounds the development characteristics and applications of new electric power engineering technologies,including technologies such as smart grids and digital de...This article focuses on electric power engineering and expounds the development characteristics and applications of new electric power engineering technologies,including technologies such as smart grids and digital design platforms.It explores the identification and classification of risk elements in electric power engineering and analyzes the deficiencies of traditional risk assessment methods.It introduces the applications of new technologies such as intelligent sensor networks in risk management,proposes a dual-driven model of technology and management,and looks forward to the application prospects of artificial intelligence and blockchain technologies.展开更多
In the field of electric power engineering,due to technological innovation,the evolution of smart grid technology and the access to new energy have changed the system structure,and the characteristics of risks have al...In the field of electric power engineering,due to technological innovation,the evolution of smart grid technology and the access to new energy have changed the system structure,and the characteristics of risks have also evolved.Traditional risk assessment methods and organizational structures are facing challenges.Emerging technologies such as big data and digital twins are applied to risk management.The new paradigm requires the reconstruction of organizational structures and collaborative governance,and involves the construction of a standardized system and ethical norms.展开更多
This paper presents a comprehensive evaluation of Electric Spring(ES)performance through simulation experiments and polynomial regression modelling.The study pri-marily aims to assess how varying load impedance ratios...This paper presents a comprehensive evaluation of Electric Spring(ES)performance through simulation experiments and polynomial regression modelling.The study pri-marily aims to assess how varying load impedance ratios impact ES performance,develop a polynomial regression model to predict the relationship between ES parameters and the ratio of non-critical to critical load impedance,and validate the model against simulation results.Detailed simulations were performed to analyse the effects of different impedance ratios on ES behaviour.Subsequently,a polynomial regression model was formulated to accurately capture the relationship between the ES parameters and impedance ratios.The findings indicate that the polynomial regression model effectively predicts ES perfor-mance,with the predicted values closely matching the simulation results.The validation process confirms the model's accuracy and reliability,demonstrating its potential for practical applications in optimising ES performance under various impedance conditions.This study offers valuable insights into the enhancement of ES systems through precise modelling and analysis,contributing to improved stability and efficiency in power systems.展开更多
Digital twin(DT)technology has been utilised in many applications including electric vehicles(EVs).A DT is a virtual representation of a physical object,enabled through real-time data integration,simulation,and optimi...Digital twin(DT)technology has been utilised in many applications including electric vehicles(EVs).A DT is a virtual representation of a physical object,enabled through real-time data integration,simulation,and optimisation tools.Unlike conventional simulations,which are typically offline and lack real-time interaction,a DT continuously synchronises with the physical system,enabling dynamic performance monitoring and predictive an-alytics.Achieving a full DT involves progressive stages,with the digital shadow(DS)being the final step before realising a bidirectional DT.Building a DS provides a scalable real-time performance monitoring and fault detection framework,enabling proactive decision-making in EV operations.This study introduces a DS system specifically designed to monitor the performance of a permanent magnet synchronous motor(PMSM)drive system in EVs,marking a critical phase towards a complete DT.The methodology for creating the DS is detailed,including the establishment of a compre-hensive test bench for the EV powertrain as the physical reference model.The mathe-matical model of the EV-PMSM was formulated,and an advanced estimation model utilising the extended Kalman filter(EKF)was implemented.MATLAB/Simulink was employed to develop the motor’s digital model.Real-time data acquisition from the physical model was facilitated through a data acquisition system(DAS)equipped with a controller area network(CAN)communication interface.The digital model underwent thorough validation against sensory data collected from the test bench.The motor digital model was deployed to a DS framework enabled through real-time data flow from the actual EV during real-world driving conditions.The results demonstrated a high accuracy of 97%between the DS predictions and the corresponding EV data,confirming the DS’s reliability.These findings pave the way for future advancements,including bidirectional interaction and the realisation of a full DT.展开更多
This article describes an Internet based laboratory (NETLAB) developed at Zhejiang University for electrical engi- neering education. A key feature of the project is the use of real experimental systems rather than si...This article describes an Internet based laboratory (NETLAB) developed at Zhejiang University for electrical engi- neering education. A key feature of the project is the use of real experimental systems rather than simulation or virtual reality. NELTAB provides remote access to a wide variety of experiments, including not only basic electrical and electronic experiments but also many innovative control experiments. Students can effectively use the laboratory at any time and from anywhere. NETLAB has been in operation since July 2003.展开更多
The project analyzes the student＇s participation in complementary activities such as Education Tutorial Program, Junior Company and Academic Center. These organizations have the goal to improve, expand and connect kn...The project analyzes the student＇s participation in complementary activities such as Education Tutorial Program, Junior Company and Academic Center. These organizations have the goal to improve, expand and connect knowledge learned during classes with several practical activities. They can provide a huge integration between the students and the professors in order to achieve better results in the pedagogical, structural and organizational parts of an engineering major degree. Therefore, the project goes through the impact of each entity in the student＇s life and the advantages to professional future, focusing the presence of these organizations in the Electrical Engineering Course of Federal University of Rio Grande do Norte.展开更多
With the continuous reform and innovation of Internet technology, intelligent technology continues to improve, and the scope of application in different industries continues to expand. Taking electrical engineering an...With the continuous reform and innovation of Internet technology, intelligent technology continues to improve, and the scope of application in different industries continues to expand. Taking electrical engineering and its automation as an example, intelligent technology is a very important emerging technology, which brings more possibilities for the efficient operation and management of electrical engineering and its automation. Therefore, for the development of electrical engineering and its automation, it is necessary to study intelligent technology.展开更多
With the incessant propulsion of the Open Door Policy,which is related to the consolidation of international collaborative partnerships,an increasing number of Chinese companies are moving toward cooperating countries...With the incessant propulsion of the Open Door Policy,which is related to the consolidation of international collaborative partnerships,an increasing number of Chinese companies are moving toward cooperating countries to participate in infrastructure construction,employing a win-win strategy in favor of the people and governments of both countries.Among the cooperation domains,our country’s electrical companies have achieved a series of remarkable results in the international Engineering,Procurement,and Construction(EPC)project market with their outstanding business capabilities and technical advantages.Nevertheless,some shortcomings cannot be overlooked,the most notable of which appears to be the impediment associated with engineering translation,which has always been an obsession among translators of Chinese companies.Taking the transmission line project in the Republic of Madagascar as an example,an analysis of French-Chinese translation methods of electrical engineering terminology in the field of the transmission line is carried out.展开更多
In the construction of electrical engineering, there are many links, especially the electrical installation project. As a cooperation specialty of construction engineering, reasonable planning and arrangement are need...In the construction of electrical engineering, there are many links, especially the electrical installation project. As a cooperation specialty of construction engineering, reasonable planning and arrangement are needed to ensure the orderly progress of the project. In engineering construction projects, the importance of electrical engineering is particularly prominent. Therefore, the paper focuses on how to improve the quality of electrical engineering and how to carry out safety management of electrical engineering.展开更多
Intelligence is a hot topic nowadays. The emergence of intelligence has not only changed people's daily life, but also promoted scientific research and development. With the continuous advancement of the times, in...Intelligence is a hot topic nowadays. The emergence of intelligence has not only changed people's daily life, but also promoted scientific research and development. With the continuous advancement of the times, intelligent technology is actually an important achievement of scientific development. With the continuous development and reform of Internet technology, automation and intelligence are gradually integrated into electrical engineering. The change not only improved the overall level of electrical engineering, but also promoted the development of electrical engineering towards a more advanced direction. Its role cannot be underestimated.展开更多
With the development of science and technology and the progress of technology, the electrical automation technology is also showing a rapid development trend which also makes the advanced electrical automation technol...With the development of science and technology and the progress of technology, the electrical automation technology is also showing a rapid development trend which also makes the advanced electrical automation technology more and more important in electrical engineering management. In industrial production, electrical automation can not only steadily improve the reliability and stability of the control system, but also effectively improve the production efficiency of enterprises. By using PLC device as microprocessor and computer and relay technology, the scope of electrical engineering automation control can be greatly expanded and the level of electrical engineering automation control can be fundamentally guaranteed. This paper introduces the application value of electrical automation technology in automation control, expounds the advantages of electrical automation technology and illustrates the application points of electrical automation technology in electrical engineering with examples.展开更多
In the process of continuous development, more and more intelligent and automatic products appear in peoples lives. In the process of changing life to replace human resources, the process of modern society is accelera...In the process of continuous development, more and more intelligent and automatic products appear in peoples lives. In the process of changing life to replace human resources, the process of modern society is accelerated. For electrical engineering, its own operation environment is relatively complex. PLC technology integration has the role of a booster for the automation of electrical engineering operation.展开更多
Nowadays, electrical engineering and its automation are more and more closely related to different disciplines, and many principles and technologies of electrical automation can play an important role in other majors,...Nowadays, electrical engineering and its automation are more and more closely related to different disciplines, and many principles and technologies of electrical automation can play an important role in other majors, especially in power marketing.Applying electrical automation technology and concept to the innovation of power marketing plays a great role in promoting power enterprises to create more benefits, improve work efficiency, reduce production costs and optimize management.Therefore, this paper analyzes the measures of applying electrical engineering and its automation to power marketing, so as to provide ideas and reference for the development of power industry.展开更多
The electrical engineering design and construction of petrochemical industry are relatively extensive, including both the installation of electrical equipment in petrochemical production buildings and the electrical e...The electrical engineering design and construction of petrochemical industry are relatively extensive, including both the installation of electrical equipment in petrochemical production buildings and the electrical equipment related to the production process. The equipment are related to the overall project quality and determine the quality and safety of the project. It is necessary to pay attention to quality control and safety management.展开更多
Electrical and automation technology is one of the important signs to measure the strength of a countrys science and technology. Nowadays, "Made in China" which can be seen everywhere in the world is closely...Electrical and automation technology is one of the important signs to measure the strength of a countrys science and technology. Nowadays, "Made in China" which can be seen everywhere in the world is closely related to the application of automation technology. Therefore, China should vigorously develop electrical and automation technology and make it fully and quickly integrate with various fields in China. In order to promote the stable and reliable operation of electrical engineering and its automation, we should do a good job in quality control and safety management, take appropriate management schemes around the common problems at present, and enhance the overall operation effect.展开更多
With the rapid development of modern information technology, the control system of electrical engineering and electrical automation has gradually matured and improved, which has become one of the hot topics in the soc...With the rapid development of modern information technology, the control system of electrical engineering and electrical automation has gradually matured and improved, which has become one of the hot topics in the society in recent years. The concept of energy-saving design is a hot topic in the extensive research of electrical automation engineering in recent years. It aims to reduce energy loss and prevent the paralysis of power supply and transmission system through electrical automation energy-saving technology, which is of great significance to maintain the safe operation of power system. This paper expounds the basic concept of electrical automation technology, analyzes and discusses the specific application of electrical automation technology and energy-saving measures in electrical engineering.展开更多
Based on the actual situation of the maintenance and management of mechanical and electrical engineering, this paper makes a comprehensive analysis and gradually explores the specific measures of property engineering ...Based on the actual situation of the maintenance and management of mechanical and electrical engineering, this paper makes a comprehensive analysis and gradually explores the specific measures of property engineering management and mechanical maintenance methods. It is hoped that through this study, the majority of staff and property management personnel can understand the main maintenance measures and specific technical operation methods of mechanical and electrical engineering, correctly use different types of maintenance technologies, strengthen daily supervision and management, regularly carry out the daily management of mechanical and electrical engineering, effectively ensure the normal operation of mechanical and electrical equipment and ensure the safety and stability of peoples electricity use. Further optimize the overall process of property engineering management and gradually form a unique mechanical and electrical engineering maintenance and management system.展开更多
文摘There are learners who cannot solve practical problems in spite of mastering basic scientific knowledge and formula necessary for the solution. One of the reasons might be attributed to the lack in metacognitive abilities. The aim of this study was to compare the metacognitive characteristics between non-major and major students in electric engineering and clarify the difference of metacognitive process between these two groups when solving basic problems of electronic circuit. In the experiment, the solving process was compared between non-major and major students in electric engineering using five basic problems. We found that the scores on prediction of result and confidence of own answer differed significantly between non-major and major students, and inferred that the difference of performance was due to the lack in metacognitive ability, especially the plan and the execution abilities. Both prediction of results and confidence of own answer were also found to play a significant role in effective problem solving as important components （subsystems） of metacognition.
文摘This article focuses on electric power engineering and expounds the development characteristics and applications of new electric power engineering technologies,including technologies such as smart grids and digital design platforms.It explores the identification and classification of risk elements in electric power engineering and analyzes the deficiencies of traditional risk assessment methods.It introduces the applications of new technologies such as intelligent sensor networks in risk management,proposes a dual-driven model of technology and management,and looks forward to the application prospects of artificial intelligence and blockchain technologies.
文摘In the field of electric power engineering,due to technological innovation,the evolution of smart grid technology and the access to new energy have changed the system structure,and the characteristics of risks have also evolved.Traditional risk assessment methods and organizational structures are facing challenges.Emerging technologies such as big data and digital twins are applied to risk management.The new paradigm requires the reconstruction of organizational structures and collaborative governance,and involves the construction of a standardized system and ethical norms.
文摘This paper presents a comprehensive evaluation of Electric Spring(ES)performance through simulation experiments and polynomial regression modelling.The study pri-marily aims to assess how varying load impedance ratios impact ES performance,develop a polynomial regression model to predict the relationship between ES parameters and the ratio of non-critical to critical load impedance,and validate the model against simulation results.Detailed simulations were performed to analyse the effects of different impedance ratios on ES behaviour.Subsequently,a polynomial regression model was formulated to accurately capture the relationship between the ES parameters and impedance ratios.The findings indicate that the polynomial regression model effectively predicts ES perfor-mance,with the predicted values closely matching the simulation results.The validation process confirms the model's accuracy and reliability,demonstrating its potential for practical applications in optimising ES performance under various impedance conditions.This study offers valuable insights into the enhancement of ES systems through precise modelling and analysis,contributing to improved stability and efficiency in power systems.
基金Estonian Research Competency Council,Grant/Award Number:PSG453,Eesti Teadusagentuur。
文摘Digital twin(DT)technology has been utilised in many applications including electric vehicles(EVs).A DT is a virtual representation of a physical object,enabled through real-time data integration,simulation,and optimisation tools.Unlike conventional simulations,which are typically offline and lack real-time interaction,a DT continuously synchronises with the physical system,enabling dynamic performance monitoring and predictive an-alytics.Achieving a full DT involves progressive stages,with the digital shadow(DS)being the final step before realising a bidirectional DT.Building a DS provides a scalable real-time performance monitoring and fault detection framework,enabling proactive decision-making in EV operations.This study introduces a DS system specifically designed to monitor the performance of a permanent magnet synchronous motor(PMSM)drive system in EVs,marking a critical phase towards a complete DT.The methodology for creating the DS is detailed,including the establishment of a compre-hensive test bench for the EV powertrain as the physical reference model.The mathe-matical model of the EV-PMSM was formulated,and an advanced estimation model utilising the extended Kalman filter(EKF)was implemented.MATLAB/Simulink was employed to develop the motor’s digital model.Real-time data acquisition from the physical model was facilitated through a data acquisition system(DAS)equipped with a controller area network(CAN)communication interface.The digital model underwent thorough validation against sensory data collected from the test bench.The motor digital model was deployed to a DS framework enabled through real-time data flow from the actual EV during real-world driving conditions.The results demonstrated a high accuracy of 97%between the DS predictions and the corresponding EV data,confirming the DS’s reliability.These findings pave the way for future advancements,including bidirectional interaction and the realisation of a full DT.
基金Project supported by the Promising Project Foundation of Zheji-ang University, China
文摘This article describes an Internet based laboratory (NETLAB) developed at Zhejiang University for electrical engi- neering education. A key feature of the project is the use of real experimental systems rather than simulation or virtual reality. NELTAB provides remote access to a wide variety of experiments, including not only basic electrical and electronic experiments but also many innovative control experiments. Students can effectively use the laboratory at any time and from anywhere. NETLAB has been in operation since July 2003.
文摘The project analyzes the student＇s participation in complementary activities such as Education Tutorial Program, Junior Company and Academic Center. These organizations have the goal to improve, expand and connect knowledge learned during classes with several practical activities. They can provide a huge integration between the students and the professors in order to achieve better results in the pedagogical, structural and organizational parts of an engineering major degree. Therefore, the project goes through the impact of each entity in the student＇s life and the advantages to professional future, focusing the presence of these organizations in the Electrical Engineering Course of Federal University of Rio Grande do Norte.
文摘With the continuous reform and innovation of Internet technology, intelligent technology continues to improve, and the scope of application in different industries continues to expand. Taking electrical engineering and its automation as an example, intelligent technology is a very important emerging technology, which brings more possibilities for the efficient operation and management of electrical engineering and its automation. Therefore, for the development of electrical engineering and its automation, it is necessary to study intelligent technology.
文摘With the incessant propulsion of the Open Door Policy,which is related to the consolidation of international collaborative partnerships,an increasing number of Chinese companies are moving toward cooperating countries to participate in infrastructure construction,employing a win-win strategy in favor of the people and governments of both countries.Among the cooperation domains,our country’s electrical companies have achieved a series of remarkable results in the international Engineering,Procurement,and Construction(EPC)project market with their outstanding business capabilities and technical advantages.Nevertheless,some shortcomings cannot be overlooked,the most notable of which appears to be the impediment associated with engineering translation,which has always been an obsession among translators of Chinese companies.Taking the transmission line project in the Republic of Madagascar as an example,an analysis of French-Chinese translation methods of electrical engineering terminology in the field of the transmission line is carried out.
文摘In the construction of electrical engineering, there are many links, especially the electrical installation project. As a cooperation specialty of construction engineering, reasonable planning and arrangement are needed to ensure the orderly progress of the project. In engineering construction projects, the importance of electrical engineering is particularly prominent. Therefore, the paper focuses on how to improve the quality of electrical engineering and how to carry out safety management of electrical engineering.
文摘Intelligence is a hot topic nowadays. The emergence of intelligence has not only changed people's daily life, but also promoted scientific research and development. With the continuous advancement of the times, intelligent technology is actually an important achievement of scientific development. With the continuous development and reform of Internet technology, automation and intelligence are gradually integrated into electrical engineering. The change not only improved the overall level of electrical engineering, but also promoted the development of electrical engineering towards a more advanced direction. Its role cannot be underestimated.
文摘With the development of science and technology and the progress of technology, the electrical automation technology is also showing a rapid development trend which also makes the advanced electrical automation technology more and more important in electrical engineering management. In industrial production, electrical automation can not only steadily improve the reliability and stability of the control system, but also effectively improve the production efficiency of enterprises. By using PLC device as microprocessor and computer and relay technology, the scope of electrical engineering automation control can be greatly expanded and the level of electrical engineering automation control can be fundamentally guaranteed. This paper introduces the application value of electrical automation technology in automation control, expounds the advantages of electrical automation technology and illustrates the application points of electrical automation technology in electrical engineering with examples.
文摘In the process of continuous development, more and more intelligent and automatic products appear in peoples lives. In the process of changing life to replace human resources, the process of modern society is accelerated. For electrical engineering, its own operation environment is relatively complex. PLC technology integration has the role of a booster for the automation of electrical engineering operation.
文摘Nowadays, electrical engineering and its automation are more and more closely related to different disciplines, and many principles and technologies of electrical automation can play an important role in other majors, especially in power marketing.Applying electrical automation technology and concept to the innovation of power marketing plays a great role in promoting power enterprises to create more benefits, improve work efficiency, reduce production costs and optimize management.Therefore, this paper analyzes the measures of applying electrical engineering and its automation to power marketing, so as to provide ideas and reference for the development of power industry.
文摘The electrical engineering design and construction of petrochemical industry are relatively extensive, including both the installation of electrical equipment in petrochemical production buildings and the electrical equipment related to the production process. The equipment are related to the overall project quality and determine the quality and safety of the project. It is necessary to pay attention to quality control and safety management.
文摘Electrical and automation technology is one of the important signs to measure the strength of a countrys science and technology. Nowadays, "Made in China" which can be seen everywhere in the world is closely related to the application of automation technology. Therefore, China should vigorously develop electrical and automation technology and make it fully and quickly integrate with various fields in China. In order to promote the stable and reliable operation of electrical engineering and its automation, we should do a good job in quality control and safety management, take appropriate management schemes around the common problems at present, and enhance the overall operation effect.
文摘With the rapid development of modern information technology, the control system of electrical engineering and electrical automation has gradually matured and improved, which has become one of the hot topics in the society in recent years. The concept of energy-saving design is a hot topic in the extensive research of electrical automation engineering in recent years. It aims to reduce energy loss and prevent the paralysis of power supply and transmission system through electrical automation energy-saving technology, which is of great significance to maintain the safe operation of power system. This paper expounds the basic concept of electrical automation technology, analyzes and discusses the specific application of electrical automation technology and energy-saving measures in electrical engineering.
文摘Based on the actual situation of the maintenance and management of mechanical and electrical engineering, this paper makes a comprehensive analysis and gradually explores the specific measures of property engineering management and mechanical maintenance methods. It is hoped that through this study, the majority of staff and property management personnel can understand the main maintenance measures and specific technical operation methods of mechanical and electrical engineering, correctly use different types of maintenance technologies, strengthen daily supervision and management, regularly carry out the daily management of mechanical and electrical engineering, effectively ensure the normal operation of mechanical and electrical equipment and ensure the safety and stability of peoples electricity use. Further optimize the overall process of property engineering management and gradually form a unique mechanical and electrical engineering maintenance and management system.
