风电并网运行接入点电压跌落分析及抑制措施的研究

Analysis of voltage sag caused by wind power integrated in the grid and research on its suppression method

风电并网运行所引起的电压跌落问题，随风电比重的增大而日益突出。通过对风电场并网运行所产生的接入点电压跌落的原理进行了分析，建立MATLAB／SIMUuNK模型仿真，验证了使用静止无功补偿器（SVC）能显著地减小电压偏差、抑制电压跌落，有效地改善风电并网运行时的电能质量。

The increasing proportion of wind power integrated in power system may cause voltage sag. This paper analyzes the principle of voltage sag caused by wind power integrated into the power system , and built up the model with MATLAB/SIMULINK. By simulation, the results showed that SVC can significantly minish voltage deviation and restraint voltage sag and effictively improve the power quality.