哈尔滨工业大学学报（英文版）2002，Vol.9Issue(4)：419-423,5.
Reduction of current chopping noise with DSP controller in switched reluctance motor drive system
Reduction of current chopping noise with DSP controller in switched reluctance motor drive system
郭伟 1詹琼华 1马志源1
作者信息
- 1. Huazhong University of Science and Technology, Wuhan 430074, China
- 折叠
摘要
Abstract
A novel current chopping mode was used in a switched reluctance motor drive system to make full use of the characteristics of digital signal processor (DSP) TMS320F240. The necessity of this 180° phase-shift current control (PSCC) mode is introduced first and then the principle of PSCC covering both hardware requirement and software programming is described in detail. The analysis made indicated that with this mode, the chopping frequency in winding can reach 20 kHz with 10 kHz power switches and the control frequency can reach 40 kHz at the same time. Subsequently, based on the linear and nonlinear mathematical models of the switched reluctance motor ( SRM), some simulation work has been done. The simulation results show that when this mode is applied to SRM drive (SRD) system, the current waveform becomes better. So the ripple of the torque is reduced simultaneously and the vibration and acoustic noise are reduced involuntarily. Stationary tests show that the acoustic noise is greatly diminished. Finally, some experiments were made using a 50 kW SRD system for electric vehicle (EV). Experimental results indicate that this mode can be implemented feasibly and it has a good action on the SRD system.关键词
switched reluctance motor/current chopping control/DSP/vibration acoustic noise/inverterKey words
switched reluctance motor/current chopping control/DSP/vibration acoustic noise/inverter分类
信息技术与安全科学引用本文复制引用
郭伟,詹琼华,马志源..Reduction of current chopping noise with DSP controller in switched reluctance motor drive system[J].哈尔滨工业大学学报（英文版）,2002,9(4):419-423,5.
