摘要
三相并网逆变器作为分布式电源接入电网的重要接口,其运行性能对电网运行的稳定至关重要。通过连续-离散模型分离的方法把三相并网逆变器的划分为含电感电阻的线性部分和含开关器件的线性部分,其中重点研究了考虑电压损耗的开关函数法来对开关器件进行建模。最后通过MATLAB/Simulink软件搭建了三相并网逆变器的实时仿真模型,运行仿真并分析仿真结果。仿真结果表明通过连续-离散模型分离的方法来划分三相并网逆变器所建立的实时仿真模型的正确性,为将来通过实时仿真的手段来验证三相并网逆变器的控制算法提供了有效模型。
Three phase grid-connected inverter is an important interface of distributed p-ower supply to power grid.The three phase grid-connected inverter is divided into the li-near part with inductance resistance and the linear part with switch device by the method of continuous and discrete model separation.At last,the real-time simulation model of thr-ee-phase grid-connected inverter is built by MATLAB/Simulink software,and the simulati-on results are run and analyzed.The simulation results show that the method of continuo-us-discrete model separation is used to divide the correctness of the real-time simulation model of the three-phase grid-connected inverter,which provides an effective model for v-erifying the control algorithm of the three-phase grid-connected inverter by means of real-time simulation in the future.
作者
单世康
王芳
陈向
SHAN Shi-kang;WANG Fang;CHEN Xiang(School of electrical engineering,Shanghai DianJi University,Shanghai 201306,China)
出处
《新一代信息技术》
2019年第12期63-69,共7页
New Generation of Information Technology
基金
上海市科学技术委员会科研项目,“大功率风电机组实时仿真并网试验平台及认证测试技术研究”(项目编号:17DZ1201200)。
关键词
三相并网逆变器
连续-离散模型分离
开关函数
实时仿真
Three-phase grid-connected inverter
Continuous-discrete model separation
S-witch function
Real-time simulation
