| 引用本文: | 李林,单喜斌,宋宗勋.基于DFIG控制方法的微电网的并网及孤岛运行方式分析[J].电力系统保护与控制,2017,45(17):158-163.[点击复制] |
| LI Lin,SHAN Xibin,SONG Zongxun.Operation mode analysis of micro-grid grid-connected and island based on DFIG control method[J].Power System Protection and Control,2017,45(17):158-163[点击复制] |
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| 摘要: |
| 双馈异步发电机(Double Fed Induction Generators, DFIG)控制方法对微电网运行方式有着重要影响。重点研究主从控制方式下含DFIG微电网的运行特性。深入分析转子转速和励磁电压控制、浆距角控制、储能系统控制和用电负荷控制等DFIG控制功能模块，分别建立并网运行时的储能控制器和DFIG控制器的PQ模型，以及孤岛运行时主控制器的VF模型。基于Matlab平台仿真微电网在两种模式下的运行特点。仿真结果表明，由于大电网支撑，并网运行时微电网的电压具有更好的稳定性。孤岛运行时，同一性质的负荷对基于DFIG控制方法的微电网运行质量影响不大，而主要由微电网控制方法决定。 |
| 关键词: 双馈异步发电机 微网 孤岛 控制方法 运行方式 |
| DOI：10.7667/PSPC161363 |
| 投稿时间：2016-08-11修订日期：2016-10-13 |
| 基金项目: |
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| Operation mode analysis of micro-grid grid-connected and island based on DFIG control method |
| LI Lin,SHAN Xibin,SONG Zongxun |
| (Weihai Power Supply Company, State Grid Shandong Electric Power Company, Weihai 264200, China) |
| Abstract: |
| Double fed induction generators (DFIG) control method has an important impact on micro-grid operation mode. The micro-grid operating characteristics containing DFIG under master-slave control mode is focused. DFIG control modules including excitation voltage and rotor speed control, pitch angle control, energy storage system control, and electrical load control are studied. And then PQ models of energy storage controller and DFIG controller when grid-connected operation and VF model of main controller when island operation are constructed. Operation characteristics of micro-grid under two modes are simulated based on Matlab platform. Simulation result shows that because of large-scale power grid support, micro-grid has more stable voltage when grid-connected operation; when island operation, load with the same nature has little effect on the operation quality of micro-grid based on DFIG control method, which is mainly determined by the micro-grid control method. |
| Key words: double fed induction generators micro-grid island control method operating mode |
