异步电机新型占空比直接转矩控制方案

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摘要传统的基于矢量表的异步电机直接转矩控制（ST-DTC）存在较大的稳态误差以及转矩脉动等问题。目前已经提出了一些通过优化有效电压矢量占空比来减小转矩脉动的方法,然而,这些方法不仅计算复杂而且严重依赖电机参数。通过深入分析每个电压矢量引起的转矩和定子磁链变化率的基础上,提出一种简单且非常有效的占空比控制方法。该方法在占空比的计算中考虑了电机转速的影响,能同时减小输出转矩脉动及其稳态误差,并且尽可能保持了传统DTC结构简单和鲁棒性强的优点。仿真和实验结果验证了所提方法的有效性。

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	李政学
	张永昌
	李正熙
	班晓娟
	杨海涛

关键词 ：直接转矩控制, 异步电机, 脉动减小, 占空比, 稳态误差

Abstract：The traditional switching-based direct torque controlled (ST-DTC) induction motor drive is usually affected by large torque ripple and steady-state error of torque. The existing literature has proposed some methods to reduce torque ripple by optimizing the duty ratio of the active vector. However, these methods are usually complicated and depend heavily on motor parameters. Based on the analysis in instantaneous variation rates of stator flux and torque caused by each voltage vector, a simple and effective method considering the effect of machine velocity is proposed to acquire the duty ratio. The proposed scheme is able to reduce the torque ripple and steady-state error of torque significantly, while maintaining the simplicity and robustness of the traditional DTC at the most. Simulations and experimental results validate the proposed scheme.

Key words： Direct torque control induction motor ripple reduction duty ratio steady-state error

收稿日期: 2014-04-09 出版日期: 2015-12-30

PACS:

TM343

基金资助:国家自然科学基金资助项目（51207003、51347004）

作者简介: 李政学男,1976年生,博士研究生,讲师,研究方向为电力电子与电机控制。张永昌男,1982年生,博士,副教授,硕士生导师,研究方向为电力电子变换器、电机控制和新能源发电。

引用本文:

李政学, 张永昌, 李正熙, 班晓娟, 杨海涛. 异步电机新型占空比直接转矩控制方案[J]. 电工技术学报, 2015, 30(24): 23-31. Li Zhengxue, Zhang Yongchang, Li Zhengxi, Ban Xiaojuan, Yang Haitao. A Novel Direct Torque Control Strategy of Induction Machine Drives with Simple Duty Ratio Calculation. Transactions of China Electrotechnical Society, 2015, 30(24): 23-31.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I24/23

[1] Depenbrock M. Direct self-control (DSC) of inverter- fed induction machine[J]. IEEE Transactions on Power Electronics, 1988, 3(4): 420-429.
[2] Takahashi I, Noguchi T. A new quick-response and high-efficiency control strategy of an induction motor[J]. IEEE Transactions on Industry Appli- cations, 1986, 22(5): 820-827.
[3] Casadei D, Profumo F, Serra G, et al. FOC and DTC: two viable schemes for induction motors torque control[J]. IEEE Transactions on Power Electronics, 2002, 17(5): 779-787.
[4] Buja G S, Kazmierkowski M P. Direct torque control of PWM inverter-fed AC motors—a survey[J]. IEEE Transactions on Industry Applications, 2004, 51(4): 744-757.
[5] Tiitinen P, Surandra M. The next generation motor control method, DTC direct torque control[C]. Proceedings of the International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth, 1996, 1: 37-43.
[6] Ambrozic V, Buja G S, Menis R. Band-constrained technique for direct torque control of induction motor[J]. IEEE Transactions on Industry Applications, 2004, 51(4): 776-784.
[7] Kang J K, Sul S K. Analysis and prediction of inverter switching frequency in direct torque control of induction machine based on hysteresis bands and machine parameters[J]. IEEE Transactions on Indu- stry Applications, 2001, 48(3): 545-553.
[8] Lai Yenshin, Chen Jianho. A new approach to direct torque control of induction motor drives for constant inverter switching frequency and torque ripple redu- ction[J]. IEEE Transactions on Energy Conversion, 2001, 16(3): 220-227.
[9] Lascu C, Trzynadlowski A. Combining the principles of sliding mode, direct torque control, and space- vector modulation in a high performance sensorless ac drive[J]. IEEE Transactions on Industry Appli- cations, 2004, 40(1): 170-177.
[10] Zhang Yongchang, Zhu Jianguo, Xu Wei, et al. A simple method to reduce torque ripple in direct torque-controlled permanent-magnet synchronous motor by using vectors with variable amplitude and angle[J]. IEEE Transactions on Industry Applications, 2011, 58(7): 2848-2859.
[11] 廖永衡, 冯晓云, 王珍. 基于定子磁链滑模观测器的异步电机空间矢量调制直接转矩控制[J]. 中国电机工程学报, 2012, 32(18): 88-97. Liao Yongheng, Feng Xiaoyun, Wang Zhen. Induction motor direct torque control based on stator flux sliding mode observer and space vector pulse width modulation[J]. Proceedings of the CSEE, 2012, 32(18): 88-97.
[12] Kouro S, Cortes P, Vargas R, et al. Model predictive control—a simple and powerful method to control power converters[J]. IEEE Transactions on Industry Applications, 2009, 56(6): 1826-1838.
[13] Geyer T, Papafotiou G, Morari M. Model predictive direct torque control part I: concept, algorithm, and analysis[J]. IEEE Transactions on Industry Appli- cations, 2009, 56(6): 1894-1905.
[14] Drobnic K, Nemec M, Nedeljkovic D, et al. Predictive direct control applied to AC drives and active power filter[J]. IEEE Transactions on Industry Applications, 2009, 56(6): 1884-1893.
[15] Miranda H, Cortes P, Yuz J, et al. Predictive torque control of induction machines based on state-space models[J]. IEEE Transactions on Industry Appli- cations, 2009, 56(6):1916-1924.
[16] Zhu Hao, Xiao Xi, Li Yongdong. Torque ripple reduction of the torque predictive control scheme for permanent-magnet synchronous motors[J]. IEEE Transa- ctions on Industry Applications, 2012, 59(2): 871-877.
[17] Habetler T G, Profumo F, Pastorelli M, et al. Direct torque control of induction machines using space vector modulation[J]. IEEE Transactions on Industry Applications, 1992, 28(5): 1045-1053.
[18] Zhang Yongchang, Zhu Jianguo. Direct torque control of permanent magnet synchronous motor with reduced torque ripple and commutation frequency[J]. IEEE Transactions on Power Electronics, 2011, 26(1): 235-248.
[19] Flach E, Hoffmann R, Mutschler P. Direct mean torque control of an induction motor[C]. Proceedings European Power Electronics and Applications (EPE), Trondheim, Norway, 1997: 672-677.
[20] Kang J K, Sul S K. New direct torque control of induction motor for minimum torque ripple and constant switching frequency[J]. IEEE Transactions on Industry Applications, 1999, 35(5): 1076-1082.
[21] Romeral L, Arias A, Aldabas E, et al. Novel direct torque control (DTC) scheme with fuzzy adaptive torque-ripple reduction[J]. IEEE Transactions on Industry Applications, 2003, 50(3): 487-492.
[22] 杨家强, 黄进. 异步电动机直接转矩控制转矩脉动最小化方法研究[J]. 电工技术学报, 2004, 19(9): 23-29. Yang Jiaqiang, Huang Jin. Research on torque ripple minimization strategy for direct torque control of induction motors[J]. Transactions of China Electro- technical Society, 2004, 19(9): 23-29.
[23] Zhang Yongchang, Zhu Jianguo, Zhao Zhengming, et al. An improved direct torque control for three-level inverter-fed induction motor sensorless drive[J]. IEEE Transactions on Power Electronics, 2012, 27(3): 1502-1513.