储能PCS叠层母线研究  

Research on Energy Storage PCS Module Laminated Busbar

作　　者：姚宁 李杨 李林 顾志斌 YAO Ning;LI Yang;LI Lin;GU Zhi-bin(NR Electric Power Electronics Co.,Ltd.,Changzhou 213022,China)

机构地区：[1]常州博瑞电力自动化设备有限公司,江苏东常州213022

出　　处：《电力电子技术》2024年第6期20-23,27,共5页Power Electronics

摘　　要：该研究以储能变流器(PCS)叠层母排就如何降低电感为研究对象,进行了PCS及电感原理、叠层母排导体及绝缘材料选型介绍。通过电容端子排布、电容端子间距、IGBT是否偏心、母排层数等因素对电感的影响进行仿真研究。最后,对叠层母排及组装成子模块进行电气测试。结果表明:电容端纵向布置,N极靠内,电容引脚间距减小,IGBT居中布置且将3层极板改为2层极板,N极板与负极板分布在同一层,电感最优,为5.13 nH,电感降低29%。叠层母排局放测试,局放值为0.1 pC(1 kV,AC)。直流耐压测试,漏电流为0 mA(3 kV,DC)。叠层母排测试电感为5.3 nH,与仿真值保持一致。子模块测试电感为15.06 nH,满足要求。This study focuses on how to reduce inductance of immersed power conversion system(PCS)stacked busbar.The principles of energy storage converters and inductors are introduced,as well as the selection of stacked busbar conductors and insulation materials.Simulation research is conducted on the influence of factors such as capacitor terminal layout,capacitor terminal spacing,whether IGBT is eccentric,and the number of bus layers on inductance.Finally,electrical testing on the stacked busbar and its assembled sub modules are conducted.The results show that the capacitor end is arranged longitudinally,with the N pole placed inward,the spacing between the capacitor pins is reduced,the IGBT is arranged in the center,and the 3-layer electrode plate is changed to a 2-layer electrode plate.The N electrode plate and the negative electrode plate are distributed in the same layer,with the optimal inductance of 5.13 nH,and the inductance is reduced by 29%.Partial discharge test of stacked busbar,with a partial discharge value of 0.1 pC(1 kV,AC).DC withstand voltage test,with a leakage current of O mA(3 kV,DC).The test inductance of the stacked busbar is 5.3 nH,which is consistent with the simulation value.The tested inductance of the submodule is 15.06 nH,which meets the requirements.

关 键 词：储能变流器 叠层母排 耐压测试 

分 类 号：TM46[电气工程—电器]