| 引用本文: | 王逸超,谢欣涛,陈仲伟,肖振锋,徐志强,陈耀红.不同容量微网逆变器的自适应虚拟阻抗运行策略[J].电力自动化设备,2018,(6): |
| WANG Yichao,XIE Xintao,CHEN Zhongwei,XIAO Zhenfeng,XU Zhiqiang,CHEN Yaohong.Adaptive virtual impedance operation strategy of microgrid inverters with different capacities[J].Electric Power Automation Equipment,2018,(6): |
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| 摘要: |
| 对不同容量微网逆变器的功率控制策略展开研究。提出适用于不同容量微网逆变器的自适应虚拟阻抗策略，通过有功功率反馈自适应地调节虚拟阻抗取值，使总的线路阻抗比朝接近逆变器容量反比的方向变化。通过理论分析证明，在增加相同虚拟阻抗取值条件下，自适应虚拟阻抗策略相比常规虚拟阻抗策略可以获得更好的功率分配效果。仿真和实验结果验证了理论分析的正确性和有效性。 |
| 关键词: 微网 逆变器 有功功率 自适应虚拟阻抗 功率分配 |
| DOI：10.16081/j.issn.1006-6047.2018.06.005 |
| 分类号:TM464 |
| 基金项目: |
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| Adaptive virtual impedance operation strategy of microgrid inverters with different capacities |
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WANG Yichao, XIE Xintao, CHEN Zhongwei, XIAO Zhenfeng, XU Zhiqiang, CHEN Yaohong
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State Grid Hunan Electric Power Company Limited Economical & Technical Research Institute, Changsha 410004, China
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| Abstract: |
| The power control strategy of microgrid inverters with different capacities is studied. An adaptive virtual impedance strategy applicable to microgrid inverters with different capacities is proposed. The active power feedback is used to adaptively adjust the virtual impedance value to make the total line impedance ratio change in the inverse direction of inverter capacity. Theoretical analysis proves that the adaptive virtual impedance strategy can obtain better power allocation effect compared to the conventional virtual impedance strategy in the condition of increasing the same virtual impedance. Simulative and experimental results verify the correctness and effectiveness of the theoretical analysis. |
| Key words: microgrid electric inverters active power adaptive virtual impedance power allocation |
