Virtual synchronous generators(VSGs)can provide voltage and frequency support to power systems due to their inertial and damping features.Unfortunately,power angle stability and fault current limitations are still cha...Virtual synchronous generators(VSGs)can provide voltage and frequency support to power systems due to their inertial and damping features.Unfortunately,power angle stability and fault current limitations are still challenging aspects of VSGs under large disturbances.Power angle stability and fault current limitations are indispensable for the safe operation of a VSG.However,in existing studies,these aspects are mostly solved as two independent problems.In this paper,the comprehensive transient stability enhancement(CTSE)control strategy for a VSG,considering power angle stability and fault current limitations is proposed.With a CTSE control,VSG's transient power angle stability is guaranteed.In addition,the steady-state and impulse components of the fault current are fully limited.Furthermore,CTSE control parameters adapted to different fault degrees are presented.Finally,simulation and experimental tests are performed to validate the performance of the proposed method.展开更多
This study presents a comprehensive impact analysis of the rotor angle stability of a proposed international connection between the Philippines and Sabah,Malaysia,as part of the Association of Southeast Asian Nations(...This study presents a comprehensive impact analysis of the rotor angle stability of a proposed international connection between the Philippines and Sabah,Malaysia,as part of the Association of Southeast Asian Nations(ASEAN)Power Grid.This study focuses on modeling and evaluating the dynamic performance of the interconnected system,considering the high penetration of renewable sources.Power flow,small signal stability,and transient stability analyses were conducted to assess the ability of the proposed linked power system models to withstand small and large disturbances,utilizing the Power Systems Analysis Toolbox(PSAT)software in MATLAB.All components used in the model are documented in the PSAT library.Currently,there is a lack of publicly available studies regarding the implementation of this specific system.Additionally,the study investigates the behavior of a system with a high penetration of renewable energy sources.Based on the findings,this study concludes that a system is generally stable when interconnection is realized,given its appropriate location and dynamic component parameters.Furthermore,the critical eigenvalues of the system also exhibited improvement as the renewable energy sources were augmented.展开更多
基金supported by the National Natural Science Foundation of China(51907057,52077072).
文摘Virtual synchronous generators(VSGs)can provide voltage and frequency support to power systems due to their inertial and damping features.Unfortunately,power angle stability and fault current limitations are still challenging aspects of VSGs under large disturbances.Power angle stability and fault current limitations are indispensable for the safe operation of a VSG.However,in existing studies,these aspects are mostly solved as two independent problems.In this paper,the comprehensive transient stability enhancement(CTSE)control strategy for a VSG,considering power angle stability and fault current limitations is proposed.With a CTSE control,VSG's transient power angle stability is guaranteed.In addition,the steady-state and impulse components of the fault current are fully limited.Furthermore,CTSE control parameters adapted to different fault degrees are presented.Finally,simulation and experimental tests are performed to validate the performance of the proposed method.
文摘This study presents a comprehensive impact analysis of the rotor angle stability of a proposed international connection between the Philippines and Sabah,Malaysia,as part of the Association of Southeast Asian Nations(ASEAN)Power Grid.This study focuses on modeling and evaluating the dynamic performance of the interconnected system,considering the high penetration of renewable sources.Power flow,small signal stability,and transient stability analyses were conducted to assess the ability of the proposed linked power system models to withstand small and large disturbances,utilizing the Power Systems Analysis Toolbox(PSAT)software in MATLAB.All components used in the model are documented in the PSAT library.Currently,there is a lack of publicly available studies regarding the implementation of this specific system.Additionally,the study investigates the behavior of a system with a high penetration of renewable energy sources.Based on the findings,this study concludes that a system is generally stable when interconnection is realized,given its appropriate location and dynamic component parameters.Furthermore,the critical eigenvalues of the system also exhibited improvement as the renewable energy sources were augmented.
