基于动态滑模控制的并网逆变器控制策略

李梦男; 钱平; 叶银忠

李梦男,钱平,叶银忠.基于动态滑模控制的并网逆变器控制策略[J].电测与仪表,2015,52(21):.
LI Mengnan,QIAN Ping,YE YinZhong.Sliding Mode control of Grid inverter with LCL Filter[J].Electrical Measurement & Instrumentation,2015,52(21):.

基于动态滑模控制的并网逆变器控制策略

Sliding Mode control of Grid inverter with LCL Filter

DOI：

中文关键词: 并网逆变器 LCL滤波器直接功率控制动态滑模控制

英文关键词:grid inverter LCL filter direct power control dynamic sliding mode control

基金项目:国家自然科学(61374132)

作者中文名	作者英文名	单位
李梦男	LI Mengnan	上海应用技术学院
钱平	QIAN Ping	上海应用技术学院
叶银忠	YE YinZhong	上海应用技术学院

摘要点击次数: 1601

中文摘要:

为了使三相LCL并网逆变器输出较理想的电压、电流,提高逆变器的运行性能,本文根据逆变器在d/q两相同步旋转坐标系中的数学模型,提出了电流内环的动态滑模控制策略。直接功率外环为电流内环提供参考电流。为消弱抖振问题,电流内环采用动态滑模控制。最后经PSCAD软件仿真验证了该控制策略的正确性和可行性,并且该方法能保证三相LCL并网逆变器在单位功率因数运行,具有应用参考价值。

英文摘要:

In order to obtain ideal output voltage and output current of the LCL three-phase grid inverter, and enhance the operation performance of the inverter, the paper proposed a dynamic sliding mode control strategy in current inner ring, based on the two-phase synchronous rotating d/q coordinate system mathematical model. The reference current for the current inner loop is provided by direct power control loop. In order to weaken the chattering phenomenon, the current inner use dynamic sliding mode control method. Finally the proposed control strategy is verified correct and reasonable with PSCAD software. The method guarantees the three-phase LCL grid inverter run in power factor, and has the reference value for application.

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