Sensorless variable-speed controller for existing fixed-speed wind power generator with unity-power-factor operation
Sensorless variable-speed controller for existing fixed-speed wind power generator with unity-power-factor operation
复制标题
用于现有定速风力发电机的单位功率因数运行的无传感器变速控制器
DOI：
10.1109/tie.2003.817689
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
A. Unnikrishnan
中科院分区：
文献类型：
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作者：
G. Poddar;A. Joseph;A. Unnikrishnan
针对现有的225 kW定速风力发电机，设计了一种变速控制器。提出了一种基于无速度传感器直接转矩控制算法的鼠笼型异步发电机控制器。基于无传感器最大功率跟踪模式算法导出发电机转矩参考，直到发电机的基本速度。这里使用三相前端转换器来将所产生的电力输送到电网，在所有风速下都具有单位功率因数操作。该算法基于直接有功无功控制。文中给出了实际安装现场的实验波形，并与现有的定速系统进行了比较。这里还介绍了对结果的解释。
A variable-speed controller, for an existing 225 kW fixed-speed wind power generator, is presented in this paper. A sensorless direct torque control algorithm-based controller is proposed for the squirrel-cage induction generator. Generator torque reference is derived based on sensorless maximum power tracking mode algorithm, up to the base speed of the generator. A three-phase front-end converter is used here to deliver the generated power to the grid with unity-power-factor operation at all wind speeds. This algorithm is based on direct active and reactive power control. The experimental waveforms from the actual installation site are presented in this paper with a comparison of the existing fixed-speed system. An interpretation of the results is also presented here.