摘要
为适应低轨道卫星、深空探测器等航天器的应用需求,本文提出采用一种新型串并联混合式峰值功率点跟踪(Maximum Power Point Tracking,MPPT)电路拓扑结构,控制算法采用增量电导法,以保证太阳电池阵工作在峰值功率点附近,充分利用太阳电池阵输出功率。文章重点介绍了新型串并联混合式MPPT电路拓扑的四种工作模式、两域控制方法和增量电导法的MPPT控制策略的实现,并搭建MPPT系统仿真平台,仿真验证结果表明,串并联MPPT拓扑结构能够快速、无扰动实现太阳电池阵峰值功率点跟踪。
Maximum Power Point Tracking(MPPT)control is especially suitable for high-power LEO spacecraft and deep-space spacecraft whose light intensity received and temperature variation are in a wide range.A new series-parallel mixed MPPT electrical power system topology is proposed in the paper,in which the control strategy uses increment-conductance method to trace the maximum power point and make full use of the output electrical power of the solar array.Details are presented in the paper,including four modes for the new circuit topology,two-area control and increment-conductance control implementations.The system simulation platform is built and some experiments and analysis are processed.The outcomes show that the new power topology can quickly trace the solar array maximum power point.
出处
《航天器工程》
2013年第3期77-82,共6页
Spacecraft Engineering