直驱型机组风电场并网静态电压稳定性研究

Static voltage stability study of direct drive wind turbine with permanent magnet synchronous generators connected to power grid

对基于永磁直驱型机组的风电场静态电压稳定性进行了研究。通过单机无穷大系统分析了影响并网风电场电压稳定性的主要因素,以美国西部电网WSCC3机9节点系统为例,分析了风电场接入后对系统电压稳定性的影响,并对不同线路等值阻抗、不同控制方式下的电压稳定性进行了比较分析,得出了P-V曲线。

The static voltage stability of the wind farm based on the permanent magnet direct drive unit was studied. First, through the single machine infinite bus system, the main factors affecting the stability of the grid-connected wind farm voltage were analyzed. Taking the U.S. western grid WSCC, 3 machine 9-bus system as an example, the wind farm access on the system voltage stability was analyzed. And the equivalent impedance, voltage stability under different control modes were compared and analyzed to draw the PV curve.