| 基于逆变器直流侧电流控制的多微源并离网无缝切换 |
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| 引用本文： | 杨欢红,解东,武霄,丁宇涛,王洁,杨小强.基于逆变器直流侧电流控制的多微源并离网无缝切换[J].上海电力学院学报,2019,35(1):53-58. |
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| 作者姓名： | 杨欢红 解东 武霄 丁宇涛 王洁 杨小强 |
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| 作者单位： | 上海电力学院;国网安徽省供电公司亳州供电公司;国网上海市电力公司检修公司 |
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| 摘 要： | 传统的多微源并离网无缝切换多采用无功-电压下垂控制策略,不能保证无缝切换过程的成功,且在孤岛运行时存在电压偏移的现象,影响微电网整体的电能质量。通过研究逆变器直流侧与交流侧电量的关系,提出了在储能逆变器控制策略中加入直流侧电流控制策略,消除了电压偏移和误调节的问题,提高了微电网在运行过程中的电压稳定性。
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| 关 键 词： | 微电网|多微源|无缝切换|直流侧电流控制 |
| 收稿时间： | 2018/3/17 0:00:00 |
Multi-micro-source Parallel-to-parallel Off-grid Seamless Switching Based on Inverter DC Side Current Control |
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| YANG Huanhong,XIE Dong,WU Xiao,DING Yutao,WANG Jie and YANG Xiaoqiang.Multi-micro-source Parallel-to-parallel Off-grid Seamless Switching Based on Inverter DC Side Current Control[J].Journal of Shanghai University of Electric Power,2019,35(1):53-58. |
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| Authors: | YANG Huanhong XIE Dong WU Xiao DING Yutao WANG Jie and YANG Xiaoqiang |
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| Affiliation: | Shanghai University of Electric Power, Shanghai 200090, China,State Grid Bozhou Powr Supply Company, Bozhou 236812, China,Maintenance Company of Shanghai Electric Power Co. Ltd., State Grid, Shanghai 200090, China,Shanghai University of Electric Power, Shanghai 200090, China,Shanghai University of Electric Power, Shanghai 200090, China and Shanghai University of Electric Power, Shanghai 200090, China |
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| Abstract: | The traditional multi-micro-source parallel-to-off network seamless switching mostly adopts reactive power-voltage droop control strategy, which can not guarantee the success of the seamless switching process, and there is voltage offset in islanding operation, which affects the overall power quality of microgrid. By studying the relationship between the DC side and AC side of the inverter, a DC side current control strategy is put forward to eliminate voltage offset and error regulation, and improve the voltage stability of microgrid in operation. |
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| Keywords: | micro-grid multi-micro-source seamless switching DC control |
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