Jiao Chaoqun, Zhang Zuoming, Zhao Zhibin, Zhang Xiumin
School of Electrical Engineering, Beijing Jiaotong University, No.3 ShangYuanCun, Haidian District, Beijing 100044, China.
Rizhao Power Supply Company of State Grid Shandong Electric Power Company, Yantai Road 68, Donggang District, Rizhao, Shandong 276800, China.
Sensors (Basel). 2020 Jul 22;20(15):4080. doi: 10.3390/s20154080.
Recently, the press-pack insulated gate bipolar transistor (IGBT) has usually been used in direct current (DC) transmission. The press-pack IGBT (PPI) adopts a parallel layout of boss chips, and the currents of each chip will be uneven in the process of turning on and off, which will affect the reliability of the device. To measure the currents of each chip, based on the analysis of the principle and equivalent model of the Rogowski coil, this paper puts forward the design scheme and design index of multi-layer printed circuit board (PCB) Rogowski coil with good high-frequency performance, strong anti-interference ability and sufficient sensitivity. With the simulation analysis of Altium Designer and ANSYS softwares, a 1 mm thick, 76-turn integrated four-layer PCB Rogowski coil is designed. Then, adding a composite integrator, an integrated Rogowski coil sensor for measurement of PPI chips currents is designed. The Pspice simulation and the experiment results show that the sensor is fully satisfied with the chip current measurement.
近年来,穿通型绝缘栅双极晶体管(IGBT)常用于直流(DC)输电。穿通型IGBT(PPI)采用凸台芯片并联布局,各芯片电流在开通和关断过程中会不均匀,这会影响器件的可靠性。为测量各芯片电流,基于对罗科夫斯基线圈原理及等效模型的分析,本文提出了具有良好高频性能、强抗干扰能力和足够灵敏度的多层印刷电路板(PCB)罗科夫斯基线圈的设计方案和设计指标。通过Altium Designer和ANSYS软件的仿真分析,设计了一种厚度为1mm、匝数为76的集成四层PCB罗科夫斯基线圈。然后,添加一个复合积分器,设计了一种用于测量PPI芯片电流的集成罗科夫斯基线圈传感器。Pspice仿真和实验结果表明,该传感器完全满足芯片电流测量要求。