电工技术学报2017，Vol.32Issue(5)：55-61,7.
用于开关磁阻电机驱动系统的新型单电阻电流采样技术
A Novel Single Resistance Current Sampling Technique of Switched Reluctance Motor
摘要
Abstract
In order to make further efforts to reduce the cost of switched reluctance electric bicycle, a novel four phase current reconstruction method based on single current sensor is proposed.The principle of four phase current reconstruction technique is studied, and the relationship between the four phase current and the sampling current in different switching situation is set up.Based on the analysis of the non commutation phase current ripple when commutate the phase, the region in which the phase current is unable to reconstruct is defined as non-observation area.A novel method using single pulse injection control strategy for solving the problem of reconstruct phase current in non-observation area is proposed.By inserting single pulse signal in the non-observation area, according to the reconstruct voltage value of dc-link, the phase current is reconstructed.Then the duty ratio of PWM is thus calculated based on the current reference to effectively achieve chopper control in non-observation area.Finally, the Matlab/Simulink digital simulation model is established and the experimental results show this method is feasible and valuable.关键词
开关磁阻电机/电动自行车/单电阻电流采样/单脉宽调制Key words
Switched reluctance motor (SRM)/electric bicycle/single current sensor/single pulse injection分类
信息技术与安全科学引用本文复制引用
周聪,刘闯,王凯,赵燕楠,管旻珺..用于开关磁阻电机驱动系统的新型单电阻电流采样技术[J].电工技术学报,2017,32(5):55-61,7.基金项目
国家自然科学基金项目(51377076)和江苏省"六大人才高峰"项目(YPC13013)资助. （51377076）
