光伏并网逆变器电流线性调节器研究进展  

Current linear regulators of grid-connected photovoltaic inverter: A review

作　　者：万晓凤[1] 胡海林[1] 余运俊[1,2] 辛建波[2] 

机构地区：[1]南昌大学信息工程学院,南昌330031 [2]江西省电力科学研究院,南昌330006

出　　处：《科技导报》2015年第16期81-87,共7页Science & Technology Review

基　　金：国家国际科技合作专项(2014DFG72240);国家科技支撑计划项目(2013BAA01B01);江西科技落地计划项目(KJD14006);江西省科技支撑计划项目(2013BBE50102)

摘　　要：光伏并网逆变器是光伏电源与电网连接的电能转换与控制设备,对并网点电能质量控制起着关键作用。目前光伏并网逆变器中电流控制策略众多,调节器种类繁多,各种调节器从结构、实现手段及控制效果上相差较大。本文针对光伏并网逆变器直接电流控制策略的线性调节器(主要包括比例积分、比例谐振、无差拍调节器)进行比较,分别从算法优缺点、实现容易程度、实时性、稳态误差等进行评价,探讨3类调节器未来的研究和发展方向。The grid-connected photovoltaic inverter is the interface between photovohaic energy sources and the grid, and it plays a key role in controlling the quality of grid at the point of common coupling. The current control methods of the PV grid-connected inverter is numerous, and there are a variety of current regulators, but there is a big difference between the regulators in control structure, realization method and effect of control. The PV grid-connected inverters are overviewed in the view of the current linear regulator. The main linear current regulators： proportional-integral, proportion resonance and deadbeat regulators are compared and evaluated in terms of advantage and disadvantage of algorithm, complexity of realization, real-time performance, steady-state error, etc. Some possible future research fields of the linear current regulator are discussed.

关 键 词：光伏并网逆变器 控制策略 直接电流控制 线性调节器 

分 类 号：TM464[电气工程—电器]