摘要
针对变速风力发电系统提出了一个新的最大功率点(MPP)快速追踪策略。该系统采用AC-DC-DC-AC变换器将永磁电机发出的电能传输给电网。鉴于DC-DC直流环节在能量传输中的重要性,采用了双重Sepic变换器,并进行了详细分析。仿真结果证明了该控制策略及变流系统的正确性和可行性。
A novel maximum power point fast tracking strategy in a variable speed wind turbine system is presented, which utilizes the AC-DC-DC-AC power converter to deliver the power energy from permanent magnet generator to the grid. Furthermore,as the important section of DC link to deliver power of energy in the converter system, a double Sepic converter is proposed and specifically analyzed. Analysis and simulation results confirm the validity and feasibility of the strategy and wind turbine system.
出处
《电机与控制应用》
北大核心
2008年第6期60-64,共5页
Electric machines & control application
关键词
变速风力机
永磁电机
最大功率点
variable speed wind turbine
permanent magnet generator
maximum power point
