The results of research into the use of fuzzy set based models and methods of multicriteria decision making for solving power engineering problems are presented. Two general classes of models related to multiobjective...The results of research into the use of fuzzy set based models and methods of multicriteria decision making for solving power engineering problems are presented. Two general classes of models related to multiobjective (X,M> models) and multiattribute (X,R> models) problems are considered. The analysisX,M> of models is based on the use of the Bellman-Zadeh approach to decision making in a fuzzy environment. Its application conforms to the principle of guaranteed result and provides constructive lines in obtaining harmonious solutions on the basis of analyzing associated maxmin problems. Several techniques based on fuzzy preference modeling are considered for the analysis of?X,R> models. A review of the authors’ results associated with the application of these models and methods for solving diverse types of problems of power system and subsystems planning and operation is presented. The recent results on the use ofX,M> andX,R> models and methods of their analysis for the allocation of reactive power sources in distribution systems and for the prioritization in maintenance planning in distribution systems, respectively, are considered.展开更多
从蓄电池、电源调控器、太阳电池阵及地面供配电测试设备(power supply subsystem special checkoutequipment,PSS SCOE)接口4个方面论述了小卫星电源分系统综合测试方法的发展现状.分析了基于镉镍或锂离子蓄电池,基于S3R,S4R或S3R与S4...从蓄电池、电源调控器、太阳电池阵及地面供配电测试设备(power supply subsystem special checkoutequipment,PSS SCOE)接口4个方面论述了小卫星电源分系统综合测试方法的发展现状.分析了基于镉镍或锂离子蓄电池,基于S3R,S4R或S3R与S4R组合的电源调控系统、双母线系统及太阳电池阵在总装、集成和测试(assembly,integration and test,AIT),大型试验及发射场等全流程中的综合测试方法与特点,以及锂离子蓄电池通断控制引起的PSS SCOE接口变化.指出了未来小卫星电源综合测试的发展趋势,旨在为该领域的发展提供参考,并为提高后续大规模小卫星星座批生产测试效率奠定基础.展开更多
A new concept, namely, the equivalent mobility matrix of coupling subsystem is proposed, and the corresponding threesubsystem coupling progressive approach is explored. With the new efficient approach presented, the c...A new concept, namely, the equivalent mobility matrix of coupling subsystem is proposed, and the corresponding threesubsystem coupling progressive approach is explored. With the new efficient approach presented, the complexity in dealing with a more complicated dynamic coupling system is greatly reduced. The new modeling method is then combined with the theory of power flow to investigate the dynamics of the overall non rigid isolation system from the viewpoint of energy. The interaction between the resilient machine of its main modes and the resonant behavior of the flexible foundation on power flow transmission is studied. Taking a machine tool mounted on a multi story working plant as an example, the dynamic characteristics of the machine foundation coupling system are analyzed, and their effects on power flow transmission are revealed under various service frequency bands. Some advisable control strategies and the design principle for machinery mounted on flexible structure are proposed.展开更多
针对“北京三号”C卫星超轻、自主、智能及部分平台设备使用二次电源供电的主要任务特点,供配电分系统采用电源调节与配电控制集成一体化的电源调控器(power conditioning and distribution unit,PCDU),并配置集中供电二次电源的架构,...针对“北京三号”C卫星超轻、自主、智能及部分平台设备使用二次电源供电的主要任务特点,供配电分系统采用电源调节与配电控制集成一体化的电源调控器(power conditioning and distribution unit,PCDU),并配置集中供电二次电源的架构,解决了轻量化设计难题。通过能源智能管理软件设计,实现了供配电分系统的自主和智能管理。通过使用含蓄电池管理单元(battery management unit,BMU)的蓄电池包,解决了蓄电池功率电缆带电插拔的问题,提高了地面测试过程的安全性,为研制流程的开放和高效提供了保障。在轨验证结果表明:电压、电流及状态遥测正确,供配电分系统状态正常,满足卫星设计要求。展开更多
文摘The results of research into the use of fuzzy set based models and methods of multicriteria decision making for solving power engineering problems are presented. Two general classes of models related to multiobjective (X,M> models) and multiattribute (X,R> models) problems are considered. The analysisX,M> of models is based on the use of the Bellman-Zadeh approach to decision making in a fuzzy environment. Its application conforms to the principle of guaranteed result and provides constructive lines in obtaining harmonious solutions on the basis of analyzing associated maxmin problems. Several techniques based on fuzzy preference modeling are considered for the analysis of?X,R> models. A review of the authors’ results associated with the application of these models and methods for solving diverse types of problems of power system and subsystems planning and operation is presented. The recent results on the use ofX,M> andX,R> models and methods of their analysis for the allocation of reactive power sources in distribution systems and for the prioritization in maintenance planning in distribution systems, respectively, are considered.
文摘从蓄电池、电源调控器、太阳电池阵及地面供配电测试设备(power supply subsystem special checkoutequipment,PSS SCOE)接口4个方面论述了小卫星电源分系统综合测试方法的发展现状.分析了基于镉镍或锂离子蓄电池,基于S3R,S4R或S3R与S4R组合的电源调控系统、双母线系统及太阳电池阵在总装、集成和测试(assembly,integration and test,AIT),大型试验及发射场等全流程中的综合测试方法与特点,以及锂离子蓄电池通断控制引起的PSS SCOE接口变化.指出了未来小卫星电源综合测试的发展趋势,旨在为该领域的发展提供参考,并为提高后续大规模小卫星星座批生产测试效率奠定基础.
文摘A new concept, namely, the equivalent mobility matrix of coupling subsystem is proposed, and the corresponding threesubsystem coupling progressive approach is explored. With the new efficient approach presented, the complexity in dealing with a more complicated dynamic coupling system is greatly reduced. The new modeling method is then combined with the theory of power flow to investigate the dynamics of the overall non rigid isolation system from the viewpoint of energy. The interaction between the resilient machine of its main modes and the resonant behavior of the flexible foundation on power flow transmission is studied. Taking a machine tool mounted on a multi story working plant as an example, the dynamic characteristics of the machine foundation coupling system are analyzed, and their effects on power flow transmission are revealed under various service frequency bands. Some advisable control strategies and the design principle for machinery mounted on flexible structure are proposed.
文摘针对“北京三号”C卫星超轻、自主、智能及部分平台设备使用二次电源供电的主要任务特点,供配电分系统采用电源调节与配电控制集成一体化的电源调控器(power conditioning and distribution unit,PCDU),并配置集中供电二次电源的架构,解决了轻量化设计难题。通过能源智能管理软件设计,实现了供配电分系统的自主和智能管理。通过使用含蓄电池管理单元(battery management unit,BMU)的蓄电池包,解决了蓄电池功率电缆带电插拔的问题,提高了地面测试过程的安全性,为研制流程的开放和高效提供了保障。在轨验证结果表明:电压、电流及状态遥测正确,供配电分系统状态正常,满足卫星设计要求。
