摘要
本文设计了一种基于模糊控制的光伏阵列最大功率跟踪(MPPT)控制策略及基于模糊—PI电流内环的双闭环并网逆变控制方法。对模糊控制器选择了适当的模糊规则和合适的比例量化因子,并且对PI比例调节器选择了合适的比例积分因子。仿真结果表明,相对于电导增量法及干扰法,基于模糊控制策略的光伏最大功率跟踪系统具有优良的动态和稳态性能;基于模糊—PI电流内环的双闭环并网逆变控制方法,实现了光伏发电系统的并网,大大提高了控制精度及动态性能。
Based on fuzzy control,this paper designed maximum power point tracking（MPPT） control strategy and double closed-loop control of the Fuzzy-PI control method which is in the current loop.The proper fuzzy rules and proportion quantification factors were chosen in fuzzy controller.In addition,proportional and integral factors were selected in PI regulator.Simulation results show that,compared with incremental conductance approach and interference method,photovoltaic maximum power point tracking system based on fuzzy control has good dynamic and static performance.Meanwhile,by adopting closed-loop control of the Fuzzy-PI control method which is in the current loop,the grid-connected was realized and the control accuracy and dynamic performance were greatly improved.
出处
《电气技术》
2011年第5期10-12,共3页
Electrical Engineering
