一种逆变电源并联均流控制策略

胡才; 高昕; 王高高

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

DOI：

中文关键词: 逆变器并联下垂控制虚拟复阻抗

英文关键词:parallel inverter, droop control strategy, virtual complex impedance

基金项目:

作者中文名	作者英文名	单位
胡才	Hu Cai	安徽理工大学电气与信息工程学院
高昕	Gao Xin	安徽理工大学电气与信息工程学院
王高高	Wang Gaogao	安徽理工大学电气与信息工程学院

摘要点击次数: 1544

中文摘要:

采用传统下垂控制策略的逆变器并联系统中,系统稳态时均流效果较差且并联系统暂态过程较长,影响了系统的可靠性和稳定性。本文在分析传统下垂控制的基础上,引入虚拟复阻抗将单台逆变器的输出阻抗变为纯阻性,然后改进传统下垂算法,提出一种阻性条件下功率PID结合PI控制算法。并在MATLAB中做了仿真验证,仿真结果验证了方案的可行性和有效性。

英文摘要:

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.

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