电工技术学报  2021, Vol. 36 Issue (8): 1617-1627    DOI: 10.19595/j.cnki.1000-6753.tces.191854
电机及其系统 |
直流母线电流采样电压空间矢量脉冲宽度调制
申永鹏1, 郑竹风1, 杨小亮1, 李会仙2, 唐耀华3
1.郑州轻工业大学电气信息工程学院 郑州 450002;
2.郑州宇通集团有限公司 郑州 451482;
3.润电能源科学技术有限公司 郑州 450000
A Compatible SVPWM Method for DC Bus Current Sampling
Shen Yongpeng1, Zheng Zhufeng1, Yang Xiaoliang1, Li Huixian2, Tang Yaohua3
1. School of Electrical and Information Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China;
2. Zhengzhou Yutong Bus Co. Ltd Zhengzhou 451482 China;
3. Rundian Energy Science Technology Co. Ltd Zhengzhou 450000 China
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摘要 针对直流母线采样电机控制系统电压空间矢量脉冲宽度调制问题,分析传统空间矢量脉冲宽度调制(SVPWM)方法的电流采样机理,揭示其在直流母线采样系统中不可观测区域的存在机理,通过定义最小采样时间的概念精确划分出直流母线电流采样不可观测区域,进而通过插入测量矢量和补偿矢量提出直流母线采样电压空间矢量脉冲宽度调制(SSVPWM)方法及其电流重构策略。通过实验验证了所提方法的电流采样误差低于2%、相电流高次谐波含量低于3%、三相电流畸变率低于1.6%,为高性能矢量控制提供了精确的电流测量。
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申永鹏
郑竹风
杨小亮
李会仙
唐耀华
关键词 脉冲宽度调制直流母线电流采样最小采样时间相电流重构采样电压空间矢量脉冲宽度调制方法    
Abstract:Aiming at the voltage space vector pulse width modulation problem of DC bus sampling motor control system, the current sampling mechanism of the traditional SVPWM method is analyzed, and the mechanism of the unobservable region in the DC bus sampling system is revealed. By defining the concept of minimum sampling time, the unobservable area of DC bus sampling system is divided accurately, and then the DC bus sampling voltage space vector pulse width modulation method (SSVPWM) and its current reconstruction strategy are proposed by inserting measurement vector and compensation vector. Finally, the experimental results show that the current sampling error is less than 2%, the higher harmonic content of the phase current is lower than 3%, and the THD of the three-phase current is lower than 1.6%, which provides accurate current for high performance vector control.
Key wordsPulse width modulation    DC bus current sampling    minimum sampling time    phase current reconstruction    sampling voltage space vector pulse width modulation (SSVPWM) method   
收稿日期: 2019-12-31     
PACS: TM341  
基金资助:国家自然科学基金青年项目(61803345)和河南省科技攻关项目(202102210303)资助
通讯作者: 郑竹风, 男,1993年生,硕士研究生,研究方向为永磁同步电机控制。E-mail: zhufeng_zzuli@163.com   
作者简介: 申永鹏, 男,1985年生,博士,副教授,研究方向为电动汽车动力系统驱动与控制、能量管理与优化。E-mail: shenyongpeng@zzuli.edu.cn
引用本文:   
申永鹏, 郑竹风, 杨小亮, 李会仙, 唐耀华. 直流母线电流采样电压空间矢量脉冲宽度调制[J]. 电工技术学报, 2021, 36(8): 1617-1627. Shen Yongpeng, Zheng Zhufeng, Yang Xiaoliang, Li Huixian, Tang Yaohua. A Compatible SVPWM Method for DC Bus Current Sampling. Transactions of China Electrotechnical Society, 2021, 36(8): 1617-1627.
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