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摘要:
本文在无刷直流力矩电机的性能测试基础上，优化设计了基于C8051F120和CPLD单片机的驱动控制电路，通过采用PWM_ON的转矩脉动最小控制模式，实现了无刷直流电机的转速闭环和位置闭环控制。实验结果表明：所设计的无刷直流电机控制系统具有响应快速、定点精度高等特点。当电机以1°/s低速转动时，速度波动小于7%，大角度调转位置闭合定点精度小于1个码值，实现了无刷电机的宽调速范围和高精度控制，验证了设计的无刷直流电机驱动和算法的有效性。
Abstract:In this paper, the drive control circuit using C8051F120 and CPLD single chip microcomputer is optimized and designed based on the performance test of brushless DC motor. By using the minimum torque ripple control method of PWM_ON, both the speed and position closed-loop control of brushless DC motor are realized. The experimental results show that the designed control system has the characteristics of fast response and high station accuracy. The speed fluctuation is less than 7% at low speed of 1°/s, and the accuracy of large angle position step is less than 1 code. The proposed method has realized wide speed range and high precision control of brushless motor and the effectiveness of the drive and algorithm is verified.
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Key words:
- brushless DC motor/
- closed-loop control/
- accuracy
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图 2电机三相绕组相反电动势波形
Figure 2.Inverse electromotive force waveform of motor three-phase winding
图 3相位差为120电角度的霍尔传感器的输出信号
Figure 3.Output signal of Hall sensor with phase difference of 120 electric angles
图 4直流无刷电机的三相全桥驱动电路
Figure 4.Three phase full bridge drive circuit for brushless DC motor
图 8转速码值设定为5时的转速响应曲线（控制器参数kp=60.0，ki=2.0）
Figure 8.Rotate speed response curve when the rotate speed code value is set to 5 (control parameteskp=60.0，ki=2.0, PositionSet=5)
图 9转速码值设定为50时的转速响应曲线（控制器参数kp=60.0，ki=2.0）
Figure 9.Rotate speed response curve when the rotate speed code value is set to 50 (control parameterskp=60.0，ki=2.0, PositionSet=50)
图 10速度阶跃响应曲线（控制器参数kp=60.0，ki=2.0）
Figure 10.Curve of the speed step response (control parameteskp=60.0，ki=2.0)
图 11位置阶跃曲线（kp=0.01，ki=0.02，PositionSet = 100）
Figure 11.Curve of the position step response (kp=0.01，ki=0.02，PositionSet=100)
图 12位置阶跃曲线（kp=0.015，ki=0.015，PositionSet=1000）
Figure 12.Curve of position step response (kp=0.015，ki=0.015，PositionSet=1000)
表 1电机正反转控制时序表
Table 1.Reversing control time-scale of motor
霍尔信号组合（UVW） 正转 反转 绕组 IGBT 绕组 IGBT 101 B→A 3,4 A→B 1,6 100 B→C 3,2 C→B 5,6 110 A→C 1.2 C→A 5,4 010 A→B 1,6 B→A 3,4 011 C→B 5,6 B→C 3,2 001 C→A 5,4 A→C 1,2 
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[1] 王国民. 天文光学望远镜轴系驱动方式发展概述[J]. 天文学进展,2007,25(4):364-374.WANG G M. Review of drive style for astronomical optical telescope[J].Progress in Astronomy, 2007, 25(4): 364-374. (in Chinese) [2] 王宏佳, 杨明, 牛里, 等. 永磁交流伺服系统速度控制器优化设计方法[J]. 电机与控制学报,2012,16(2):25-31.doi:10.15938/j.emc.2012.02.013WANG H J, YANG M, NIU L,et al. Optimal speed controller design method for permanent magnet AC servo system[J].Electric Machines and Control, 2012, 16(2): 25-31. (in Chinese)doi:10.15938/j.emc.2012.02.013 [3] 李洪文, 邓永停, 王建立. 永磁同步电机速度控制器的全数字化集成[J]. 光学 精密工程,2015,23(4):1105-1113.doi:10.3788/OPE.20152304.1105LI H W, DENG Y T, WANG J L. Digital integration of PMSM speed controller based on FPGA[J].Optics and Precision Engineering, 2015, 23(4): 1105-1113. (in Chinese)doi:10.3788/OPE.20152304.1105 [4] 邓永停, 李洪文, 王建立, 等. 结构滤波器在望远镜主轴控制系统中的应用[J]. 光学 精密工程,2017,25(4):900-909.doi:10.3788/OPE.20172504.0900DENG Y T, LI H W, WANG J L,et al. Application of structural filter to principal axis system of telescope[J].Optics and Precision Engineering, 2017, 25(4): 900-909. (in Chinese)doi:10.3788/OPE.20172504.0900 [5] PHAM N T, VAN NGUYEN N. Novel carrier based PWM techniques reduce common mode voltage for six phase induction motor drives[J].International Journal of Advanced Computer Science and Applications, 2019, 10(5): 287-299. [6] SHI J, LI SH H. Analysis and compensation control of dead-time effect on space vector PWM[J].Journal of Power Electronics, 2015, 15(2): 431-442.doi:10.6113/JPE.2015.15.2.431 [7] 周美兰, 高肇明, 吴晓刚, 等. 五种PWM方式对直流无刷电机系统换相转矩脉动的影响[J]. 电机与控制学报,2013,17(7):15-21.doi:10.3969/j.issn.1007-449X.2013.07.003ZHOU M L, GAO ZH M, WU X G,et al. Influence of five kinds of PWM on commutation torque ripples in BLDCM control system[J].Electric Machines and Control, 2013, 17(7): 15-21. (in Chinese)doi:10.3969/j.issn.1007-449X.2013.07.003 [8] 陈坤, 周兴, 文武. 基于改进数字PWM逆变器控制器设计[J]. 船电技术,2018,38(3):42-46.doi:10.13632/j.meee.2018.03.010CHEN K, ZHOU X, WEN W. Design of inverter controller based on improved digital PWM[J].Marine Electric&Electronic Engineering, 2018, 38(3): 42-46. (in Chinese)doi:10.13632/j.meee.2018.03.010 -
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