HARMONIC RESONANCE SUPPRESSION STRATEGY OF THREE-PHASE LCL PHOTOVOLTAIC GRID-CONNECTED INVERTER BASED ON LADRC AND QUASI PR

被引：0
|
作者：
Zhou X. [1 ]
Guo S. [1 ]
Ma Y. [1 ]
Li Y. [1 ]
Ma C. [1 ]
机构：
[1] College of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 03期
关键词：
harmonic resonance phenomenon; LCL-type inverter; linear active disturbance rejection; proportional resonance control; PV system;
D O I：
10.19912/j.0254-0096.tynxb.2021-1319
中图分类号：
学科分类号：
摘要：
Aiming at the harmonic resonance phenomenon of three- phase LCL photovoltaic grid connected inverter from its high frequency resonant peak，a current double closed loop control strategy based on third-order LESO combined with second-order LADRC and quasi PR control is designed. It can better weaken the high frequency resonant peak and suppress the harmonic resonance phenomenon of photovoltaic system. By designing Lyapunov function，it is proved that the closed-loop system will eventually converge stably. The simulation results show that the double loop control strategy has superior robustness and practical application value. © 2023 Science Press. All rights reserved.
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页码：465 / 474
页数：9
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