新能源并网逆变器控制技术研究  

作　　者：赵海 

机构地区：[1]安徽省蚌埠市交通运输综合行政执法大队,安徽蚌埠233000

出　　处：《科技创新与应用》2023年第5期72-75,共4页Technology Innovation and Application

摘　　要：并网逆变器在新能源发电系统中有着广泛的应用,存在易失稳,电流谐波含量高等问题,限制并网逆变器的进一步应用。针对上述问题,提出基于电网电压定向的逆变器控制模型,通过坐标变换将交流量变为直流量,推导相关数学模型,提出利用仿真软件辅助计算的方法,最后在Matlab软件中验证上述方法的正确性和有效性,可进一步提升并网逆变器运行稳定性。Grid-connected inverters are widely used in new energy generation systems,but there are problems such as easy destabilisation and high harmonic content of current,which limit the further application of grid-connected inverters.In order to address the above problems,an inverter control model based on grid voltage orientation is proposed,the AC current is changed into DC flow by coordinate transformation,the relevant mathematical model is deduced,and the method of aided calculation by simulation software is put forward.Finally,the correctness and effectiveness of the above methods are verified in Matlab software,which can further improve the operation stability of grid-connected inverter.

关 键 词：并网逆变器 电网电压定向 比例积分控制器 新能源 数学模型 

分 类 号：TM464[电气工程—电器]