无刷直流电机软开关逆变器矢量控制  

Vector Control of Soft-switching Inverter for Brushless DC Motor

作　　者：贡恩忠 戴瑜兴[1] 毕大强[2] Gong Enzhong;Dai Yuxing;Bi Daqiang(Engineering Laboratory of Electrical Digital Design Technology of Zhejiang Province,Wenzhou University,Wenzhou 325035,China;State Key Laboratory of Power Systems,Tsinghua University,Beijing 100084,China)

机构地区：[1]温州大学电气数字化设计技术浙江省工程实验室,温州325035 [2]清华大学电力系统国家重点实验室,北京100084

出　　处：《电力系统及其自动化学报》2020年第1期125-130,共6页Proceedings of the CSU-EPSA

摘　　要：为了改善传统无刷直流电动机驱动控制存在的转矩波动大、效率低以及硬开关模式下逆变器侧的开关管功率损耗大等问题,本文提出了一种新型无刷直流电机驱动谐振极逆变器的矢量控制策略。该策略通过矢量算法进行驱动控制,并在传统硬开关逆变器的基础上添加辅助谐振电路,然后根据不同模式下的等效电路图,分析了逆变器的工作原理。最后,在Simulink中进行仿真,其结果验证了该方法在电机正常工作情况下,具有转矩波动小、开关损耗低以及工作效率高等优点。In order to improve the problems of the large torque ripple,low efficiency,and high power loss of the switch on the inverter-side in hard-switching mode,a novle vector control strategy of resonant pole inverter is proposed for the brushless DC motor drive.Under this strategy,the drive control is conducted by means of vector algorithm,and an aux⁃iliary resonant circuit is added on the basis of the traditional hard-switching inverter.Afterwards,the working principle for the inverter is analyzed according to the equivalent circuit in different modes.Finally,simulations are conducted in Simulink,and results show that the proposed method has advantages of small torque ripple,low switching loss and high working efficiency when the motor is under normal operation.

关 键 词：无刷直流电机 软开关 谐振逆变器 矢量控制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]