三相光伏并網(wǎng)發(fā)電系統(tǒng)的設(shè)計與控制

首先針對三相并網(wǎng)逆變器的LCL 濾波進(jìn)行原理設(shè)計，其次建立基于LCL 濾波器三相并網(wǎng)逆變器的狀態(tài)空間數(shù)學(xué)模型。同時提出了一種基于狀態(tài)反饋極點配置與重復(fù)控制器相結(jié)合的并網(wǎng)控制策略。最后給出了仿真波形以及實驗結(jié)果證明控制策略的可行性。
Abstract: This paper theoretically analyzed the three-phase inverter with LCL filter, and established the state-space mathematic model of the inverter. Through the analysis about Pole-assignment control and repetitive control, this paper designed a hybrid controller incorporating repetitive control and state feedback pole-assignment control based on single-phase inverter with LCL filter, and the experiment proved the validity of the controller.
關(guān)鍵詞：LCL 濾波器；光伏并網(wǎng)；極點配置；重復(fù)控制
Keyword: LCL filter; photovoltaic grid-connected; Pole-assignment; Repetitive control