| 引用本文: | 周红婷,宋玮.计及动态无功控制影响的大规模风电汇集地区电压稳定性分析[J].电力系统保护与控制,2016,44(7):13-18.[点击复制] |
| ZHOU Hongting,SONG Wei.Analysis on voltage stability in large-scale wind farms integration area considering impact of dynamic reactive power control[J].Power System Protection and Control,2016,44(7):13-18[点击复制] |
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| 摘要: |
| 为了进一步分析大规模风电汇集地区电压稳定性，提出应考虑风电场动态无功控制的影响。基于电压-无功灵敏度法解释了动态无功补偿装置的恒无功控制方式所带来的汇集地区电压上升问题。利用小扰动稳定法，分析出采用高压侧恒电压控制的风电场内动态无功补偿装置之间存在很强的相互作用，并会引起不稳定的电压振荡。以华北某风电汇集地区为例，在PSS/E中比较分析区内所有风电场内动态无功补偿装置分别采用恒无功、高压侧恒电压和低压侧恒电压三种控制方式时受到小扰动后的电压变化。仿真结果验证了分析结论，表明在研究风电汇集地区电压稳定性问题上，考虑风电场的动态无功控制影响是必要的。 |
| 关键词: 风电汇集地区 动态无功补偿方式 小扰动稳定分析 电压稳定 无功电压控制 |
| DOI：10.7667/PSPC150940 |
| 投稿时间：2015-06-05修订日期：2015-08-27 |
| 基金项目: |
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| Analysis on voltage stability in large-scale wind farms integration area considering impact of dynamic reactive power control |
| ZHOU Hongting,SONG Wei |
| (School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, China) |
| Abstract: |
| In order to analyze voltage stability in large-scale wind farms integration area, this paper proposes that dynamic reactive power control should be considered. Presently, dynamic reactive power compensation device in wind farms widely adopts constant reactive power control. According to it, this paper firstly proposes this control mode of dynamic reactive power compensation device can bring voltage stability problem based on voltage-reactive power sensitivity method; then it uses small signal stability analysis method, consulting that there is a strong interaction between dynamic reactive power compensation devices in wind farms which adopts high-voltage side constant voltage control. As a result, it will lead to unstable high frequency oscillation; finally, taking a wind farm integration area in North China, it obtains the voltage change of all dynamic reactive power compensation device in wind farm after small disturbance when constant control mode, high-voltage side constant voltage control, and low-voltage side constant voltage control are adopted respectively. The result shows that considering dynamic reactive power control is important for voltage stability analysis in large-scale wind farms integration area. |
| Key words: wind farm integration area dynamic reactive power compensation small signal stability analysis voltage stability reactive power and voltage control |
