改进下垂控制在岸电系统中的应用

Application of Improved Droop Control in Shore Power System

针对传统下垂控制策略中忽略导线电阻的影响,且不能实现变换器输出有功功率和无功功率的完全解耦,提出一种改进的下垂控制策略。该策略考虑导线电阻的影响,通过输出功率的虚拟转换,实现有功功率和无功功率的完全解耦。在PLECS平台中搭建了仿真模型,仿真对比结果验证了改进下垂控制策略的可行性和有效性。

The traditional droop control strategy ignores the influence of wire resistance,which cannot achieve complete decoupling of the output active power and reactive power of the converter.In view of this situation,an improved droop control strategy is proposed in this paper.Considering the influence of wire resistance,this strategy realizes complete decoupling of active power and reactive power by virtual conversion of output power.The simulation model is built in the PLECS platform.The simulation comparison results verify the feasibility and effectiveness of the improved droop control strategy.