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微电网中不同容量逆变器并联控制策略

Control Strategy on Parallel Micro-grid Inverters With Different Power Capacity
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摘要 在传统下垂控制中加入虚拟同步发电机(VSG)算法和电压补偿环节,使逆变器具有同步发电机(SG)的大惯量特性,且各并联逆变器输出电压一致,有功、无功功率按额定容量比分配;通过电压电流控制环的设计,使逆变器等效输出阻抗为感性,以满足下垂控制要求,保证并联逆变器具有良好的动静态特性。Matlab/Simulink仿真和实验验证了所提控制策略的可行性。 Adding virtual synchronous generator(VSG) algorithm and voltage compensation to traditional droop control strategy.Because of it,inverters have the inertia characteristics of synchronous generator(SG), consistent voltage and pr- ecise sharing of active power and reactive power.By designing inductive equivalent output impedance of inverters, the requirements of droop control are satisfied and good static and dynamic characteristics of inverters are ensured.The effectiveness of the control strategy is verified by simulation results from Matlab/Simulink and experiment.
出处 《电力电子技术》 CSCD 北大核心 2015年第12期29-31,共3页 Power Electronics
基金 国家自然科学基金(51277150 51307140) 陕西省工业攻关(2013k07-05) 陕西省教育厅产业化培育(14JF020)~~
关键词 微电网 下垂控制 虚拟同步发电机 输出阻抗 micro-grid droop control virtual synchronous generator output impedance
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参考文献8

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