三相Z源并网逆变器无电网电压传感器控制  

Voltage-sensor-less control of three-phase Z-source grid-connected inverter

作　　者：李杰[1] 沈晓枉[2] 陈之浩[3] 蒋大为[2] 

机构地区：[1]上海开放大学信息与工程学院,上海200433 [2]上海市电力公司市区供电公司,上海200072 [3]上海市电力公司信息通信公司,上海200080

出　　处：《电源技术》2013年第10期1827-1831,共5页Chinese Journal of Power Sources

基　　金：上海市教育委员会科研创新项目(11Y Z257)

摘　　要：将虚拟磁链技术应用到三相Z源并网逆变器控制系统中,结合三相Z源并网逆变器的数学模型,建立了考虑直通占空比影响的电网虚拟磁链观测模型,提出了基于虚拟磁链定向的Z源并网逆变器控制策略。仿真结果证实了理论分析的正确性和控制策略的有效性。Virtual flux technology was applied in control system of the novel three-phase Z-soume inverter. Combining the mathematical model of three-phase Z-source grid-connected inverter and thinking over shoot-through duty ratio influence, the virtual flux estimation model was established. The virtual flux-based control strategy of three--phase Z-source grid-connected inverter was proposed. Simulation results verify the correctness of theoretical analysis and the validity of control method.

关 键 词：三相Z源并网逆变器 无电网电压传感器控制 虚拟磁链 直接电流控制 

分 类 号：TM464[电气工程—电器]