电工技术学报  2017, Vol. 32 Issue (5): 55-61    DOI:
电机与电器 |
用于开关磁阻电机驱动系统的新型单电阻电流采样技术
周聪,刘闯,王凯,赵燕楠,管旻珺
南京航空航天大学自动化学院 南京 210016
A Novel Single Resistance Current Sampling Technique of Switched Reluctance Motor
Zhou Cong,Liu Chuang,Wang Kai,Zhao Yannan,Guan Minjun
College of Automation Nanjing University of Aeronautics and Astronautics Nanjing 210016 China
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摘要 为进一步降低开关磁阻电动自行车设计成本,提出了单电阻电流采样的四相电流重构技术。对单电阻电流采样的四相电流重构技术的原理进行研究,建立了不同开关状态下四相电流与采样电流的关系。对换相而引起的非换相相电流波动问题进行分析,定义了无法重构相电流的区域为非观测区。提出使用单脉冲注入控制解决非观测区内无法重构相电流的方法,通过在非观测区注入单个脉冲信号,依据直流母线电压值重构得到相电流,并根据给定电流参考量,计算得到脉宽调制补偿信号的占空比,从而实现在非观测区的斩波控制。建立了Matlab/Simulink数字仿真模型,并进行仿真验证,最后进行了开关磁阻电机单电阻电流采样及控制算法的实验。结果表明,所提单电阻电流采样技术具备可行性和使用价值。
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周聪
刘闯
王凯
赵燕楠
管旻珺
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    
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.
Key wordsSwitched reluctance motor (SRM)    electric bicycle    single current sensor    single pulse injection   
收稿日期: 2015-10-28      出版日期: 2017-03-22
PACS: TM352  
基金资助: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。
通讯作者: 周 聪 男,1990年生,硕士研究生,研究方向为开关磁阻电机本体设计和电机控制。E-mail:crystalshara@126.com   
作者简介: 刘 闯 男,1973年生,教授,博士生导师,研究方向为现代交流调速控制、新能源发电及控制技术、航空电源技术。E-mail:lc@nuaa.edu.cn
引用本文:   
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. Zhou Cong,Liu Chuang,Wang Kai,Zhao Yannan,Guan Minjun. A Novel Single Resistance Current Sampling Technique of Switched Reluctance Motor. Transactions of China Electrotechnical Society, 2017, 32(5): 55-61.
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https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I5/55