风力发电用三相Z源逆变器并网仿真研究  

Study on Simulation of Three-Phase Z-Source Inverter for Grid-Connected Wind Power Generation

作　　者：张华强[1] 李惟卫[1] 刁文[1] 

机构地区：[1]哈尔滨工业大学(威海)电气工程系,山东威海264209

出　　处：《哈尔滨理工大学学报》2011年第4期31-35,共5页Journal of Harbin University of Science and Technology

摘　　要：针对风力发电用并网逆变器的特殊要求,分析了三相Z源逆变器的工作原理,推导出固定升压比控制下的主要参数设计公式,利用Matlab/Simulink建立了带直通零矢量的SVPWM仿真模型以实现逆变器开关管通断控制,并采用d、q轴电流独立控制的并网控制策略实现以单位功率因数并网的控制目标,仿真结果验证了理论分析及仿真模型的正确性.For the special requirements of grid-connected inverter used in wind power generation system,a kind of three-phase Z-Source inverter operational principle is analyzed in this paper.Formulas for the design of main parameters under the control of constant duty cycle of shoot-through switching state are derived.Then the simulation models of SVPWM with shoot-through zero vectors are built by Matlab/Simulink in order to control the switch of Z-Source inverter on and off.The independent control strategy of d-axis and q-axis currents is used to achieve a unity power factor grid-connected aim.Simulation results show that the theoretical analysis and the simulation models are valid.

关 键 词：风力发电 Z源逆变器 并网 仿真 

分 类 号：TM464[电气工程—电器]