摘要
针对变步长电导增量法响应速度慢的缺陷,提出一种新的最大功率点(MPPT)控制方法,即在不同区域可以将短路电流比例系数法、定电压跟踪法与变步长电导增量法及时切换的MPPT控制方法。通过在PSCAD/EMTDC仿真平台进行验证,无论在标准状况下还是环境突变时,该方法均能迅速准确地找到最大功率点,大大提高了MPPT的收敛速度和控制精度,减少了在最大功率点附近的震荡。
Aiming at the defect of slow respond speed in using variable step - size incremental conductance meth-od ,author proposed a new MPPT control method. That is the method that enables the short circuit current ratio co-efficient method, constant voltage tracking method and the variable step incremental conductance method switching in time. Through the test on PSCAD/EMTDC simulation platform, this method can quickly and accurately find the maximum power point whether under normal conditions or environmental catastrophe. In doing so, convergence speed and control precision have been greatly improved and the shock have been reduced near the maximum power point.
出处
《黑龙江电力》
CAS
2016年第6期529-532,536,共5页
Heilongjiang Electric Power
关键词
短路电流比例系数法
定电压跟踪法
最大功率点跟踪
变步长电导增量
short circuit current ratio coefficient method
constant voltage tracking method
maximum power point tracking
variable step incremental conductance