| DFIG在微电网中的电压频率协调控制策略 |
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| 引用本文： | 赵晶晶,徐成斯,洪婉莎,徐传琳.DFIG在微电网中的电压频率协调控制策略[J].上海电力学院学报,2017,33(5):419-424. |
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| 作者姓名： | 赵晶晶 徐成斯 洪婉莎 徐传琳 |
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| 作者单位： | 上海电力学院 电气工程学院, 上海 200090,上海电力学院 电气工程学院, 上海 200090,上海电力学院 电气工程学院, 上海 200090,上海电力学院 电气工程学院, 上海 200090 |
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| 基金项目： | 国家自然科学基金（51207087）；上海绿色能源并网工程技术研究中心资助项目（13DZ2251900）. |
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| 摘 要： | 为了抑制双馈异步风力发电机(DFIG)因自身有功输出波动导致的微电网电压频率波动,提高其对微电网孤岛运行下电压频率支撑的能力,研究分析了DFIG有功虚拟惯量控制以及定子侧无功功率极限,提出了一种基于f-P和V-Q下垂控制的DFIG电压频率协调控制策略.在DFIG V-Q下垂控制中引入逻辑积分环节,在不额外使用补偿装置下有效抑制电压频率的持续波动,并且在微电网电压频率跌落时,能够与其他采用下垂控制的分布式电源(DG)构成对等控制策略,共同为微电网提供电压频率支撑.最后在DIgSILENT仿真软件中搭建了微电网模型,仿真结果验证了控制策略的有效性.
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| 关 键 词： | 微电网 双馈异步风力发电机 对等控制 频率控制 电压控制 下垂控制 |
| 收稿时间： | 2016/12/19 0:00:00 |
Voltage and Frequency Coordination Control Strategy of DFIG in Micro-grid |
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| ZHAO Jingjing,XU Chengsi,HONG Wansha and XU Chuanlin.Voltage and Frequency Coordination Control Strategy of DFIG in Micro-grid[J].Journal of Shanghai University of Electric Power,2017,33(5):419-424. |
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| Authors: | ZHAO Jingjing XU Chengsi HONG Wansha and XU Chuanlin |
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| Affiliation: | School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China,School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China,School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China and School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China |
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| Abstract: | In order to suppress the micro-grid voltage and frequency fluctuation caused by the active power output fluctuation of the doubly fed wind turbine,improve its voltage and frequency support ability,the DFIG active virtual inertia control and stator reactive power limit are analyzed.Based on f-P,V-Q droop control,the voltage and frequency coordination control strategy of DFIG with a logic integration added in V-Q droop control is presented.This control strategy allows DFIG to suppress the continuous voltage fluctuation itself without additional compensation device.When there is voltage-frequency drop,it allows DFIG to constitute a peer-to-peer control strategy with other distributed generator to provide support for the voltage and frequency of micro grid.Finally,the DIgSILENT simulation software is built to simulate the micro grid model.The simulation results verify the effectiveness of the proposed control strategy. |
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| Keywords: | micro-grid doubly-fed induction generator peer to peer control strategy frequency control voltage control droop control |
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