双馈风力发电机变流器并网试验方法研究  

Test methods analyses on grid-connected converter of doubly-fed wind generators

作　　者：李亚萍[1] 张红超[1,2] 

机构地区：[1]国家继电保护及自动化设备质量监督检验中心,河南许昌461000 [2]合肥工业大学,安徽合肥230001

出　　处：《电力系统保护与控制》2012年第15期122-126,共5页Power System Protection and Control

摘　　要：针对双馈风力发电机变流器并网时会产生电压波动、冲击电流以及谐波等问题,研究了双馈风力发电机变流器试验平台的构建方法。以1.5MW双馈风电变流器为样机,研究了其并网切入电流、加载试验、总谐波畸变系数(THD)、功率因数调整能力等并网特性的试验方法,考察这些因素对并网的影响程度。试验结果表明,单台风电变流器可以满足并网要求,而且并网切入电流较小,不致对电网产生较大的影响。In allusion to issues caused by the converter of doubly-fed wind generator when connected to the power grid, such as the voltage fluctuation, impulse current and harmonic components injection, we firstly analyze construction methods of testing platform for the converter of doubly-fed wind generator. Then we consider the 1.5 MW doubly-fed wind turbine converter as a prototype to research its grid-connected characteristics. Some items are tested and evaluated, including cut-in current, loading test, total harmonic distortion （THD）, power factor regulating ability, etc, and the influence degree of these factors on the grid is reviewed. The test result shows that the converter prototype meets the grid-connected requirements, and the cutting-in current of the converter prototype is too small to impact the grid.

关 键 词：双馈发电机 风力发电机组 变流器 并网 风力发电 

分 类 号：TM315[电气工程—电机]