摘要
基于同步发电机dq0数学模型,具体分析了微电网逆变器虚拟同步发电机(VSG)控制的原理及优势,提出了在电压电流双闭环中引入虚拟阻抗的方法,改善了逆变器的输出特性,使其更适合于微电网的工作环境,有效地发挥了VSG控制的特点。最后利用Matlab/Simulink搭建模型进行仿真试验,验证了该策略的正确性和有效性。
The paper analyzes the principle and advantages of virtual synchronous generator for microgrid inverter based on the dpO mathematical model of the synchronous generator.The output characteristic of the inverter can be improved by introducing virtual impedance into the voltage and current loops,and thus make the inverter more suitable for the working environment of the microgrid,taking full advantage of VSG control strategy.Finally,the paper makes a simulation by Mallab/Simulink,and verifies thecorrectness and effectiveness of the strategy by both the simulation and experimental results.
出处
《陕西电力》
2016年第7期38-42,共5页
Shanxi Electric Power
