基于RTDS仿真的最大功率点交叉检验的MPPT研究

MPPT Research of MPP Cross Check Based on RTDS

最大功率追踪直接影响着的光伏系统的电能质量,一种基于C曲线的变步长电导增量MPPT算法,不能很好地实现高追踪效率和小功率震荡兼顾的设计目的。基于RTDS仿真平台建模和MPPT算法,改进并引入了最大功率点交叉检验,解决了穿越最大功率点时大幅震荡及无序扰动的问题,获得了高效、低扰动、高质量的光伏电源。

Maximum power point tracking directly affects the power quality of photovoltaic systems. A Variable Stepsize IncrementalConductance MPPT algorithm based on the C-curve cannot achieve the design goal of high tracking efficiency with low power oscillation. By modeling and simulation based on RTDS simulation platform,the MPPT algorithm is improved byMPPT Cross Check,which the problem of large-scale oscillation and disordered disturbance when crossing the maximum power point issolved,and a high-efficiency,low-disturbance and high-quality PV power supply is obtained.