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论文:2012,Vol:30,Issue(1):22-26 |
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引用本文： |
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骆光照, 李斐, 杨南方, 陈哲, 刘卫国. 三电平逆变器供电永磁同步电机直接转矩控制研究[J]. 西北工业大学 |
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Luo Guangzhao, Li Fei, Yang Nanfang, Chen Zhe, Liu Weiguo. An Efficient Three-Level Inverter Direct Torque Control (DTC) of Permanent Magnet Synchronous Motor (PMSM)[J]. Northwestern polytechnical university |
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| 三电平逆变器供电永磁同步电机直接转矩控制研究 |
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| 骆光照, 李斐, 杨南方, 陈哲, 刘卫国 |
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| 西北工业大学 自动化学院,陕西 西安 710072 |
| 摘要: |
| 针对临近空间飞行器电驱动系统的高效控制问题,构建一种三电平逆变器供电永磁同步电机直接转矩控制系统,以减少输出电流的谐波含量,降低转矩脉动,提升驱动系统整体效率。针对三电平逆变器空间电压矢量调制(SVPWM)实现复杂的问题,通过对大、小电压矢量选择的归纳研究,利用矢量的对称性和归一化处理方法,提出一种易于通过可编程器件实现的简洁计算方法,实现不同扇区的统一计算;构建参考矢量的复数表达形式,利用极坐标相角信息简化扇角区间判别。采用Matlab/Simulink分别构建传统两电平逆变器和三电平逆变器直接转矩控制系统进行对比分析,仿真结果验证了该算法在减小电流谐波和削弱转矩脉动方面的有效性。 |
| 关键词:
临近空间飞行器
三电平逆变器
空间电压矢量调制
高效控制
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| An Efficient Three-Level Inverter Direct Torque Control (DTC) of Permanent Magnet Synchronous Motor (PMSM) |
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| Luo Guangzhao, Li Fei, Yang Nanfang, Chen Zhe, Liu Weiguo |
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| Department of Automatic Control,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| Aiming to obtain high efficiency of electrical drives for near-space vehicle,we proposed a novel three-level inverter DTC method for PMSM,to suppress current harmonic components and toque ripples.Sections 1 and 2of the full paper explained the proposed method in detail.Their core consists of:"In order to bypass the implemen-ting complexity of space vector PWM (SVPWM) for three-level inverter,we have presented a relatively simple cal-culation method which is easy to implement with field programmable gate arrays through choosing proper large andsmall voltage sectors and through using the principle of symmetry and normalization.The reference voltage was pres-ented under polar coordinates and vector phase was used to condense the decisions of sectors.The three-level invert-er and traditional two-level inverter DTC simulation models were constructed respectively with Matlab/Simulink forcomparative analysis".The simulation results,presented in Figs.6 and 7,have shown preliminarily the validity ofour proposed method in suppressing efficiently current harmonics and torque pulses. |
| Key words:
AC motors
algorithms
analysis
calculations
control
decision making
design
efficiency
electricdrive
energy efficiency
field programmable gate arrays
improvement
models
numerical methods
simulation
synchronization
topology
transients
waveform analysis
high efficiency control
near-space vehicle
space vector PWM (SVPWM)
three-level inverter
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| 收稿日期: 2011-04-02
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金(51177135)；陕西省自然科学基金重点项目(2011GZ013)资助 |
| 通讯作者:
Email： |
| 作者简介: 骆光照(1972-),西北工业大学副教授,主要从事永磁电机驱动技术研究。
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| 作者相关文章 |
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| 骆光照 在本刊中的所有文章 |
| 李斐 在本刊中的所有文章 |
| 杨南方 在本刊中的所有文章 |
| 陈哲 在本刊中的所有文章 |
| 刘卫国 在本刊中的所有文章 |
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参考文献: |
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[1] Zhang Minghui，Liu Weiguo. Transient Coupled Electro-Magnetic Thermal Analysis of a Permanent Magnet brushless DC motor．Proceeding of CMCE, 2010, 221～224
[2] Lee K B，Song J H，Choy I，Yoo J Y. Improvement of Low-Speed Operation Performance of DTC for Three-Level Inverter-FedInduction. IEEE Trans on Ind Electron, 2001, 48(5): 1006～1014
[3] Lee K B，Song J H，Choy I，Yoo J Y. Torque Ripple Reduction in DTC of Induction Motor Driven by Three-Level Inverter withLow Switching Frequency. IEEE Trans on Power Electron, 2002, 17(2): 255～264
[4] Davari S A，Hasankhan E，Khaburi D A. A Comparative Study of DTC-SVM with Three-Level Inverter and an Improved Predic-tive Torque Control Using Two-Level Inverter. Proceeding of PEDSTC, 2011, 379～384
[5] Zaimeddine R，Undeland T. DTC Control Schemes for Induction Motor Fed By Three-Level NPC-VSI Using Space Vector Modu-lation. Proceeding of SPEEDAM, 2010, 966～971 |
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