基于谐振逆变电路的纳米晶材料高频测量系统研究  

Research on high-frequency measurement system of nanocrystalline material based on resonant inverter circuit

作　　者：庞舰 李琳[1] 张希蔚 丁杰[1] Pang Jian;Li Lin;Zhang Xiwei;Ding Jie(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《电测与仪表》2022年第12期150-155,188,共7页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(51677064);国家重点研发计划项目(2017YFB0903902)。

摘　　要：针对纳米晶材料高频磁滞回线和损耗测量受到仪器带宽和额定功率限制的问题,设计了一种新型高频测量系统。该系统采用直流电源搭配推挽谐振逆变电路代替传统的函数信号发生器加功率放大器,通过调节电路元件以调整谐振频率从而实现1 kHz~10 kHz频段的频率调节,具有传输功率高、效率高、谐振频率连续可调等特点。利用PSCAD仿真软件研究了逆变电路的各项功能。研制了测量系统并实测了10 kHz时纳米晶磁环的磁滞回线和损耗曲线。通过将该测量系统与传统的测量平台进行小容量的模型实测对比,测量系统误差为3.3%,证明了所研制的测量系统具有较高精确度。Aiming at the problem that the high-frequency hysteresis loop and loss measurement of nanocrystalline materials are limited by the bandwidth and rated power of the instrument,a novel high-frequency measurement system is designed in this paper.The system adopts a DC power supply with a push-pull resonant inverter circuit to replace the traditional function signal generator and power amplifier,and adjusts the resonant frequency by adjusting the circuit components to achieve frequency adjustment in the 1 kHz-10 kHz band,which is featured with high transmission power,high efficiency,and continuously adjustable resonance frequency,etc.The PSCAD simulation software is utilized to study the various functions of the inverter circuit.A measurement system was developed and the hysteresis loop and loss curve of the nanocrystalline magnetic ring at 10 kHz were measured.By comparing the measurement system with the traditional measurement platform for small-capacity model measurement,it is found that the measurement error of the system is 3.3%,which proves that the proposed measurement system developed has high accuracy.

关 键 词：高频磁环测量 磁滞回线 推挽谐振电路 

分 类 号：TM93[电气工程—电力电子与电力传动]