2025年6月7日 周六
Home > Archive>Volume 36, Issue 3, 2021 >100-110. DOI:10.19781/j.issn.1673-9140.2021.03.012
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Microgrid photovoltaic current control strategy based on improved robust repetitive control and QPR
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    Abstract:

    In order to improve the power control performance of photovoltaic inverter in microgrid and improve the gridconnected current quality of photovoltaic power generation, the state space model of photovoltaic main circuit in microgrid with PVESS is established in this paper. Based on this model, the detailed design process of improved repetitive control and improved robust compensator are given to improve the structure of traditional repetitive control. In order to improve the stability and tracking accuracy of the control system, the robust compensator is added and the optimal configuration is obtained by the linear matrix inequality method. Then, combined with QPR, a photovoltaic current control strategy based on the improved robust repetitive control and paralleling QPR is proposed. Finally, the strategy verification on the RTDS simulation platform shows that this strategy can effectively improve the tracking performance of current and harmonic suppression capability of the photovoltaic inverter, and the effectiveness of the strategy and engineering application value are verified.

    Reference
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陈建福,谭喆,刘仁亮,陈冰,陈锐,陈淼,廖珩.基于改进鲁棒重复控制与QPR的光伏电流控制[J].电力科学与技术学报英文版,2021,36(3):100-110. Chen Jianfu, Tan Zhe, Liu Renliang, Chen Bing, Chen Rui, Chen Miao, Liao Hang. Microgrid photovoltaic current control strategy based on improved robust repetitive control and QPR[J]. Journal of Electric Power Science and Technology,2021,36(3):100-110.

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  • Online: August 26,2021
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