基于电流谐波最小的永磁同步电机无差拍预测电流控制
TM351; 基于空间矢量调制(SVM)的无差拍预测电流控制(DBPCC)具有原理简单、动态响应快、开关频率固定等优点,在永磁电机高性能控制中得到了广泛应用.但是传统的无差拍预测电流控制采用单一的7 段式矢量序列,在高速重载等高调制比工况下电流谐波相对较大.已有研究表明,高调制比时采用母线钳位空间矢量调制能获得更小的电流谐波,但优化矢量序列的选择比较复杂且仅在开环运行下进行验证.在解析推导基于 4 种电压矢量序列的空间矢量调制的电流谐波基础上,提出了一种变序列SVM无差拍预测电流控制策略.该策略根据调制比在线选择使电流谐波最小的优化电压矢量序列,不仅计算量小,而且有效降低了电流谐波.仿真和实验...
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| Published in | 电机与控制学报 Vol. 27; no. 8; pp. 16 - 25 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
华北电力大学 电气与电子工程学院,北京 102206
2023
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-449X |
| DOI | 10.15938/j.emc.2023.08.002 |
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| Abstract | TM351; 基于空间矢量调制(SVM)的无差拍预测电流控制(DBPCC)具有原理简单、动态响应快、开关频率固定等优点,在永磁电机高性能控制中得到了广泛应用.但是传统的无差拍预测电流控制采用单一的7 段式矢量序列,在高速重载等高调制比工况下电流谐波相对较大.已有研究表明,高调制比时采用母线钳位空间矢量调制能获得更小的电流谐波,但优化矢量序列的选择比较复杂且仅在开环运行下进行验证.在解析推导基于 4 种电压矢量序列的空间矢量调制的电流谐波基础上,提出了一种变序列SVM无差拍预测电流控制策略.该策略根据调制比在线选择使电流谐波最小的优化电压矢量序列,不仅计算量小,而且有效降低了电流谐波.仿真和实验结果表明,相比基于单一矢量序列的传统无差拍预测电流控制,所提出的方法在全调制比下都可以获得最小的电流谐波和THD.在调制比大于0.92 时,电流THD可减小30%以上. |
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| AbstractList | TM351; 基于空间矢量调制(SVM)的无差拍预测电流控制(DBPCC)具有原理简单、动态响应快、开关频率固定等优点,在永磁电机高性能控制中得到了广泛应用.但是传统的无差拍预测电流控制采用单一的7 段式矢量序列,在高速重载等高调制比工况下电流谐波相对较大.已有研究表明,高调制比时采用母线钳位空间矢量调制能获得更小的电流谐波,但优化矢量序列的选择比较复杂且仅在开环运行下进行验证.在解析推导基于 4 种电压矢量序列的空间矢量调制的电流谐波基础上,提出了一种变序列SVM无差拍预测电流控制策略.该策略根据调制比在线选择使电流谐波最小的优化电压矢量序列,不仅计算量小,而且有效降低了电流谐波.仿真和实验结果表明,相比基于单一矢量序列的传统无差拍预测电流控制,所提出的方法在全调制比下都可以获得最小的电流谐波和THD.在调制比大于0.92 时,电流THD可减小30%以上. |
| Author | 王宇彬 张永昌 赵继乾 诸晔源 |
| AuthorAffiliation | 华北电力大学 电气与电子工程学院,北京 102206 |
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| Author_FL | ZHANG Yongchang ZHU Yeyuan WANG Yubin ZHAO Jiqian |
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| Keywords | 空间矢量调制 current control 稳态性能 current harmonic deadbeat predictive control 变序列 永磁同步电机 space vector modulation 电流谐波 电流控制 permanent magnet synchronous motor steady-state performance variable sequence 无差拍预测控制 |
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| Title | 基于电流谐波最小的永磁同步电机无差拍预测电流控制 |
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