基于变结构模糊控制的MPPT控制策略  

Control strategy on MPPT based on variable structure fuzzy control

作　　者：袁晓玲[1] 范发靖[1] 周素梅[1] 

机构地区：[1]河海大学能源与电气学院,江苏南京210024

出　　处：《可再生能源》2012年第2期5-8,共4页Renewable Energy Resources

摘　　要：为了充分提高光伏发电系统的效率,针对光伏电池成本高、转化效率低的问题,基于电导增量法和模糊控制技术,提出了一种最大功率点跟踪方法。该方法采用了非对称的输出隶属度函数和具有PID功能的变结构模糊控制,能快速响应外界环境变化,准确跟踪到光伏电池的最大功率点,且有效地减小了最大功率点处的输出波动。As the high cost of photovoltaic cells and the low transformation efficiency is,in order to improve the efficiency of photovoltaic generation system, a Maximum Power Point Tracking （MPPT） method bases on Incremental Conductance and Fuzzy control was improved. The method of asymmetrical output membership function and a variable structure Fuzzy control with PID was adopted,and response to the outside environmental changes rapidly and the photovohaic cells MPP was tracked exactly,output vibration of MPP also decreased in this method.

关 键 词：最大功率点跟踪 变结构模糊控制 隶属度函数 稳态误差 

分 类 号：TM615[电气工程—电力系统及自动化]