胡才,高昕,王高高.一种逆变电源并联均流控制策略[J].电测与仪表,2018,55(4):74-77. Hu Cai,Gao Xin,Wang Gaogao.A Current Sharing Control Strategy for Parallel Operration of Inverters[J].Electrical Measurement & Instrumentation,2018,55(4):74-77.
一种逆变电源并联均流控制策略
A Current Sharing Control Strategy for Parallel Operration of Inverters
In the parallel system of inverters with traditional droop control strategy,the current sharing effect is poor during steady-state operation.And the transient process of parallel system is long, which affects the reliability and stability of the system.After analyzing the traditional droop control, The output impedance of a single inverter is changed into pure resistance by introducing Virtual complex impedance .And then, a power PID correction combined with PI control algorithm is proposed under the condition of resistive output impedance.The simulation is done in MATLAB, and the simulation results verify the feasibility and effectiveness of the proposed scheme.