共直流母线并联光伏逆变器的效率特性

Efficiency Characteristic of Parallel PV Inverters With a Common DC-bus

随着单台光伏逆变器技术的日趋成熟和光伏发电规模的日益扩大,逆变器集群特性和控制逐渐受到重视。通过理论推导和实验验证,研究、探讨了并联逆变器集群的效率特性,得出使逆变系统总体效率最高的功率分配方式,这一成果将为逆变器集群控制策略的设计提供重要参考。

With the increasing maturity of the PV inverter technology and the growing scale of the PV power plants, the characteristics and control of inverter clusters are drawing more and more attention.This paper researches on the characteristic of parallel inverters and the optimal power-sharing scheme of inverters by both theoretical analysis and experimental verification.The result is important to the design of inverter clusters control.