New Strategy of Flux-weakening Control of PMSM Based on Model Predictive Control

doi:10.11985/2021.04.009

Abstract

Abstract:

Aiming at the problem of voltage limit ellipse constraint and current parameter tuning in high-speed flux weakening region of interior permanent magnet synchronous motor, a hybrid flux weakening control strategy based on finite set predictive current control method and real-time voltage feedback is proposed. Firstly, the finite-set predictive current control method is used to calibrate the torque, speed, current and angle in the maximum torque current ratio and flux weakening region, which solves the traditional complex current parameter setting problem and improves the reliability of calibration data. Secondly, on the basis of predictive current sampling control method, combined with real-time voltage feedback, a hybrid flux weakening control strategy is designed to avoid the parameter setting of current loop, solve the problem of voltage limit ellipse constraint and realize high-speed operation. Finally, the effectiveness of the proposed method is verified by simulation and experiment.

Key words: Permanent magnet synchronous motor, hybrid flux-weakening control, model predictive control

CLC Number:

TM341

LUO Yu, LI Zheng, GUI Yonglin, KE Dongliang, PAN Xianxi, DAN Zhimin, WANG Fengxiang. New Strategy of Flux-weakening Control of PMSM Based on Model Predictive Control[J]. Journal of Electrical Engineering, 2021, 16(4): 68-77.

Figures/Tables 14

References 22

[1]	康劲松, 蒋飞, 钟再敏, 等. 电动汽车用永磁同步电机弱磁控制策略综述[J]. 电源学报, 2017, 15(1):15-22.
	KANG Jinsong, JIANG Fei, ZHONG Zaimin, et al. Overviews of flux weakening control schemes with permanent magnet synchronous motor used in electric vehicles[J]. Journal of Power Supply, 2017, 15(1):15-22.
[2]	杨阳. 基于转矩—转速—电流MAP的车用永磁同步电机矢量控制优化[D]. 长春:吉林大学, 2018.
	YANG Yang. Optimization of field control for permanent magnet synchronous motor in electric vehicle based on torque-speed-current MAP[D]. Changchun:Jilin University, 2018.
[3]	MICHAEL M, JOACHIM B. Optimum control for interior permanent magnet synchronous motors (IPMSM) in constant torque and flux weakening range[C]// 2006 12th International Power Electronics and Motion Control Conference,August 30-Stepember 1,2006,Portoroz,Slovenia. Piscataway:IEEE, 2006:282-286.
[4]	ERIC A, RADU I B, PAOLO G, et al. Experimental identification of the magnetic model of synchronous machines[J]. IEEE Transactions on Industry Applications, 2013, 49(5):2116-2125. doi: 10.1109/TIA.2013.2258876
[5]	YONG-CHEOL K, SUNGMIN K, SEUNG-KI S. Voltage feedback current control scheme for improved transient performance of permanent magnet synchronous machine drives[J]. IEEE Transactions on Industrial Electronics, 2012, 59(5):3373-3382. doi: 10.1109/TIE.2011.2173097
[6]	SAVERIO B, SILVERIO B, LUCA P, et al. Combined speed and current model predictive control with inherent field-weakening features for PMSM drives[C]// MELECON 2008 - The 14th IEEE Mediterranean Electrotechnical Conference,May 5-7,2008,Ajaccio,France. Piscataway:IEEE, 2008:472-478.
[7]	JINGLIN L, CHAO G, ZEXIU H, et al. IPMSM model predictive control in flux-weakening operation using an improved algorithm[J]. IEEE Transactions on Industrial Electronics, 2018, 65(12):9378-9387. doi: 10.1109/TIE.2018.2818640
[8]	BON-HO B, NITIN P, STEVEN S, et al. New field weakening technique for high saliency interior permanent magnet motor[C]// 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference,October 12-16,2003,Salt Lake City,UT,USA. Piscataway:IEEE, 2003:898-905.
[9]	李雪, 迟颂, 刘聪, 等. 基于虚拟电阻的永磁同步电机单电流调节器弱磁控制[J]. 电工技术学报, 2020, 35(5):1046-1054.
	LI Xue, CHI Song, LIU Cong, et al. Flux-weakening control with single current regulator of permanent magnet synchronous motor based on virtual resistor[J]. Transactions of China Electrotechnical Society, 2020, 35(5):1046-1054.
[10]	白玉成, 唐小琦, 吴功平. 内置式永磁同步电机弱磁调速控制[J]. 电工技术学报, 2011, 26(9):54-59.
	BAI Yucheng, TANG Xiaoqi, WU Gongping, et al. Speed control of flux weakening on interior permanent magnet synchronous motors[J]. Transactions of China Electrotechnical Society, 2011, 26(9):54-59.
[11]	盛义发, 喻寿益, 桂卫华, 等. 轨道车辆用永磁同步电机系统弱磁控制策略[J]. 中国电机工程学报, 2010, 30(9):74-79.
	SHENG Yifa, YU Shouyi, GUI Weihua, et al. Field weakening operation control strategies of permanent magnet synchronous motor for railway vehicles[J]. Proceedings of the CSEE, 2010, 30(9):74-79.
[12]	席裕庚, 李德伟, 林姝. 模型预测控制——现状与挑战[J]. 自动化学报, 2013, 39(3):222-236.
	XI Yugeng, LI Dewei, LIN Shu. Model predictive control——Status and challenges[J]. Acta Automatica Sinica, 2013, 39(3):222-236.
[13]	RALPH K, JOSE R, JOSE R E, et al. High performance speed control methods for electrical machines: An assessment[C]// 2010 IEEE International Conference on Industrial Technology,March 14-17,2010,Via del Mar,Chile. Piscataway:IEEE, 2010:1793-1799.
[14]	郑泽东, 王奎, 李永东, 等. 采用模型预测控制的交流电机电流控制器[J]. 电工技术学报, 2013(11):118-123.
	ZHENG Zedong, WANG Kui, LI Yongdong, et al. Current controller for AC motors using model predictive control[J]. Transactions of China Electrotechnical Society, 2013(11):118-123.
[15]	FENGXIANG W, SHIHUA L, XUEZHU M, et al. Model-based predictive direct control strategies for electrical drives:An experimental evaluation of PTC and PCC Methods[J]. IEEE Transactions on Industrial Informatics, 2015, 11(3):671-681. doi: 10.1109/TII.2015.2423154
[16]	柯栋梁, 汪凤翔, 李家祥. 基于自适应高增益观测器的永磁同步电机预测电流控制方法[J]. 中国电机工程学报, 2021, 41(2):728-738.
	KE Dongliang, WANG Fengxiang, LI Jiaxiang. Predictive current control of permanent magnet synchronous motor based on adaptive high-gain observer[J]. Proceedings of the CSEE, 2021, 41(2):728-738.
[17]	张永昌, 杨海涛, 魏香龙. 基于快速矢量选择的永磁同步电机模型预测控制[J]. 电工技术学报, 2016, 31(6):66-73.
	ZHANG Yongchang, YANG Haitao, WEI Xianglong. Model predictive control of permanent magnet synchronous motors based on fast vector selection[J]. Transactions of China Electrotechnical Society, 2016, 31(6):66-73.
[18]	张昌凡, 吴公平, 何静, 等. 一种永磁同步电机失磁故障容错预测控制算法[J]. 电工技术学报, 2017, 32(15):100-110.
	ZHANG Changfan, WU Gongping, HE Jing, et al. Fault-tolerant predictive control for demagnetization faults in permanent magnet synchronous machine[J]. Transactions of China Electrotechnical Society, 2017, 32(15):100-110.
[19]	李家祥, 汪凤翔, 柯栋梁, 等. 基于粒子群算法的永磁同步电机模型预测控制权重系数设计[J]. 电工技术学报, 2021, 36(1):50-59,76.
	LI Jiaxiang, WANG Fengxiang, KE Dongliang, et al. Weighting factors design of model predictive control for permanent synchronous machine using particle swarm optimization[J]. Transactions of China Electrotechnical Society, 2021, 36(1):50-59,76.
[20]	王伟华, 肖曦. 永磁同步电机高动态响应电流控制方法研究[J]. 中国电机工程学报, 2020, 40(10):3328-3336.
	WANG Weihua, XIAO Xi. An current control method for permanent magnet synchronous motors with high dynamic performancel[J]. Proceedings of the CSEE, 2020, 40(10):3328-3336.
[21]	SAMIR K, PATRICIO C, RENÉ V, et al. Model predictive control:A simple and powerful method to control power converters[J]. IEEE Transactions on Industrial Electronics, 2009, 56(6):1826-1838. doi: 10.1109/TIE.2008.2008349
[22]	TAKUYA S, SHINJI D. Improvement of torque control system of PMSM based on model predictive control[C]// IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society,September 2-6,2013,Lille,France. Piscataway:IEEE, 2013:1-7.

S₁	S₂	S₃	u_n	u_out
0	0	0	(0, 0, 1)	0
1	0	0	(1, 0, 0)	$\frac{2}{3}{u_{dc}}$
0	1	0	(0, 1, 0)	$\frac{2}{3}{u_{dc}}\exp \left( {j\frac{2}{3}\pi } \right)$
1	1	0	(1, 1, 0)	$\frac{2}{3}{u_{dc}}\exp \left( {j\frac{\pi }{3}} \right)$
0	0	1	(0, 0, 1)	$\frac{2}{3}{u_{dc}}\exp \left( {j\frac{4}{3}\pi } \right)$
1	0	1	(1, 0, 1)	$\frac{2}{3}{u_{dc}}\exp \left( {j\frac{5}{3}\pi } \right)$
0	1	1	(0, 1, 1)	$\frac{2}{3}{u_{dc}}\exp \left( {j\pi } \right)$
1	1	1	(1, 1, 1)	0

参数	数值	参数	数值
d轴电感L_d/mH	10	额定转矩T_e/(N·m)	23
q轴电感L_q/mH	14.5	额定电压V_n/V	380
定子电阻R_s/Ω	0.637	额定电流I_n/A	9
磁链ψ_f/Wb	0.31	额定功率P_n/kW	4.8
极对数p_n	4	额定转速n_r/(r/min)	2 000