在分析现有变速恒频双馈风力发电励磁控制系统的基础上,提出了一种基于PCC的双馈励磁控制器的实现方案;以PCC可编程控制器作为励磁控制器的核心控制器,简化了系统硬件结构,提岛了系统稳定性和系统的反应速度;通过搭建仿真实验系统,原动机采用15kW交流异步电机来模拟风机,双馈发电机采用绕线式感应电机,以整流模块和逆变模块组合为双向变流器,加入PCC励磁控制器,进行起励、故障切除等的仿真实验,检测了在发电机转速发生变化和跨越同步转速的情况下励磁控制器的工作情况和效果,实验结果证明,该方案完全满足实际要求.%In the analysis of existing VSCF double-fed induction generator excitation control system, the proposed double-fed excitation controller based on PCC was implemented. The PCC programmable controller excitation controller as the core control device, can simplify the structure of the system to improve system stability and the respond speed of the system. Meanwhile, conducted excitation and fault removal experiments, simultaneous detection of changes in generator speed and across the case of synchronous speed, excitation controller work. The experiment results show that the program was fully meet the actual requirements.
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