合并有源滤波功能的虚拟同步发电机控制策略  

Control strategy of virtual synchronous generator combined with active power filter

作　　者：蔡晓峰 张鸿博 李鑫 CAI Xiaofeng;ZHANG Hongbo;LI Xin(School of Mechanical Engineering,Henan University of Engineering,Xinzheng 451191,China;School of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;School of Safety Engineering,Henan University of Engineering,Xinzheng 451191,China)

机构地区：[1]河南工程学院机械工程学院,河南新郑451191 [2]华北水利水电大学电力学院,河南郑州450045 [3]河南工程学院安全工程学院,河南新郑451191

出　　处：《电力系统保护与控制》2018年第24期126-134,共9页Power System Protection and Control

基　　金：河南省科技攻关计划项目资助(172102310757;182102210333)~~

摘　　要：提出一种虚拟同步发电机与有源滤波器相结合的并网逆变器统一控制策略。分析了虚拟同步发电机的指令电流与电网谐波电压的关系,论证了统一控制策略中提取电网基波电压用于虚拟同步发电机指令电流生成的必要性,并给出了基于多重二阶广义积分器结构的虚拟同步发电机指令电流生成算法。分析了虚拟同步发电机在多功能并网逆变器中应用引起的冲击电流问题并提出了改进方法。利用Matlab/Simulink对系统进行了仿真,验证了所提出改进控制策略的正确性。A novel combined control strategy for both virtual synchronous generator and Active Power Filter(APF) is proposed. The relationship between the reference current of virtual synchronous generator and the harmonic voltage of power network is analyzed, the necessity of extracting the fundamental voltage for the reference current generation in the combined control strategy is demonstrated, and a virtual generator reference current generation algorithm based on multiple second-order generalized integrator structure is given. The shock current caused by the application of virtual synchronous generator in the multi-function grid-connected inverter is analyzed, and the improvement method is put forward. System simulation is carried out on Matlab/Simulink and simulation results verify the validity of the proposed control strategy.

关 键 词：并网逆变器 虚拟同步发电机 有源滤波 多功能 电能质量 

分 类 号：TM341[电气工程—电机]