基于虚拟电网磁链定向的网侧逆变器矢量控制研究  

Research Based on Virtual Flux-Oriented Vector Control of Grid-Connected Inverter

作　　者：赵梅花[1] 阮毅[2] 杨勇[2] 

机构地区：[1]洛阳理工学院,河南洛阳471023 [2]上海大学机电工程与自动化学院,上海200072

出　　处：《电机与控制应用》2010年第2期17-20,共4页Electric machines & control application

基　　金：台达环境与教育基金会电力电子科教发展计划资助(DRES2007002)

摘　　要：风力发电系统中三相电压型并网逆变器的电路结构,与变频器供电的交流异步电机的定子电路有很大的相似性,采用类似于电机磁链观测的方法构造出虚拟的电网电压磁链矢量,从而达到取消交流侧电压传感器的目的。根据交流电机磁链观测器的设计方法,构造了虚拟电网磁链观测器;并对该设计方案进行了试验研究,其结果验证了该控制方案的可行性和正确性。In wind power generate system, the circuit of three-phase voltage inverter is similar to an AC asyn- chronous motor with the inverter power supply stator circuit, similar to AC asynchronous motor flux observe method, virtual flux voltage vector was constructed, so as to achieve the purpose to cancel voltage sensor. According to AC motor flux design method. A virtual grid flux-observer was constructed. And the feasibility and correctness of control program were verified by experiment results.

关 键 词：风力发电 并网逆变器 矢量控制 虚拟磁链 磁链观测器 

分 类 号：TM464[电气工程—电器]