粒子群与电导增量法结合的光伏发电MPPT  

Global optimized Photovoltaic MPPT Algorithm Based on PSO and Incremental Conductance Method

作　　者：余运俊[1,2] 刘涛[1] 王时胜[1] 辛建波[2] 聂晓华[1] 

机构地区：[1]南昌大学,江西南昌330031 [2]江西省电力科学研究院,江西南昌330096

出　　处：《系统仿真学报》2016年第12期2994-3000,共7页Journal of System Simulation

基　　金：国家自然科学基金(61563034;51467013);国家国际科技合作专项(2014DFG72240);国家科技支撑计划(2013BAA01B01);江西省自然科学基金(20151BABE206051)

摘　　要：光伏阵列在局部阴影遮蔽时其P-V特性曲线会呈现出多个局部峰值的情况,电导增量法可能跟踪在某个并非最大的极值点上,从而造成跟踪失败。粒子群算法有全局寻优的特点,但跟踪精度有欠缺。提出了一种基于电导增量法优化的粒子群全局MPPT算法,粒子群算法能够快速跟踪到全局最大功率点附近,电导增量法可以进一步精确跟踪到最大功率点。通过将所提方法与传统电导增量法simulink仿真对比以及当局部阴影情况发生突变时的研究,结果证明了该方法能快速准确地跟踪到光伏阵列全局最大功率点。The P-V array characteristic curve exhibits a plurality of local maximum power point under conditions of partial shading. The incremental conductance method maybe track an extreme value point that is not the largest power point, thus lead to tracking failure. The PSO algorithm has the characteristics of global optimization, but its tracking precision is deficient. A global MPPT algorithm based on PSO algorithm by incremental conductance method was proposed, PSO algorithm could quickly locate to the approximate global MPP, INC could further precise the MPE Compared to the traditional incremental conductance method Simulink simulation and the research when partial shade suddenly changed, the result shows that the present method can track the global MPP of the PV array quickly and accurately.

关 键 词：光伏阵列 局部阴影 电导增量法 粒子群算法 多峰值最大功率点 

分 类 号：TM615[电气工程—电力系统及自动化]