Compensation Strategy for Commutation Error of Sensorless Brushless DC Motor Wind Power Generation System Based on Speed Change Rate
Bian Chunyuan1, Xing Haiyang1, Li Xiaoxia2, Liu Shangyue1, Jia Yulong1
1. School of Information Science and Engineering Northeastern University Shenyang 110819 China; 2.Guangdong Power Grid Co. Ltd Dongguan Power Supply Bureau Dongguan 523008 China
Abstract：In view of the problem of commutation error during variable speed operation of the sensorless brushless DC motor wind power generation system, this paper analyzes the back-EMF waveform of the brushless DC generator, the mathematical relationship between the commutation error angle and the back-EMF zero-crossing time interval is derived, and timely adjust the zero-crossing delay angle to compensate for the corresponding error. Compared with the traditional commutation error compensation method, the commutation error compensation method proposed in this paper can compensate and correct in real time, and the method is simple and easy to implement. The experimental verification shows that the method proposed in this paper can accurately detect the commutation error angle, and effectively compensate the commutation error of the brushless DC motor, improve the commutation accuracy of the motor, and has wide applicability and application value.
边春元, 邢海洋, 李晓霞, 刘尚玥, 贾玉龙. 基于速度变化率的无位置传感器无刷直流电机风力发电系统换相误差补偿策略[J]. 电工技术学报, 2021, 36(11): 2374-2382.
Bian Chunyuan, Xing Haiyang, Li Xiaoxia, Liu Shangyue, Jia Yulong. Compensation Strategy for Commutation Error of Sensorless Brushless DC Motor Wind Power Generation System Based on Speed Change Rate. Transactions of China Electrotechnical Society, 2021, 36(11): 2374-2382.
[1] Luo Xiang, NiuShuangxia. A novel contra-rotating power split transmission system for wind power generation and its dual MPPT control strategy[J]. IEEE Transactions on Power Electronics, 2017, 32(9): 6924-6935. [2] 李辉, 谢翔杰, 刘行中, 等. 风电变桨电机参数对控制系统影响分析及改进辨识方法[J]. 电机与控制学报, 2019, 23(7): 9-18. Li Hui, XieXiangjie, Liu Xingzhong, et al. Influence of parameters on control system and improved identification method of pitch motor in wind turbine generator system[J]. Electric Machines and Control, 2019, 23(7): 9-18. [3] BianChunyuan, Zhao Guannan, Li Xiaoxia, et al. Research and design of DTC system based on six-phase asymmetrical BLDCM[J]. CES Transactions on Electrical Machines and Systems, 2018, 2(1): 123-128. [4] Tsotoulidis S, Safacas A N.Deployment of an adaptable sensorless commutation technique on BLDC motor drives exploiting zero sequence voltage[J]. IEEE Transactions on Industrial Electronics, 2015, 62(2): 877-886. [5] 张雷, 李航, 宋晓娜. 无刷直流电机直接转矩控制系统的优化设计[J]. 电机与控制学报, 2019, 23(10): 110-119. Zhang Lei, Li Hang, Song Xiaona.An optimization design method of direct torque fuzzy control systems for brushless DC motors[J]. Electric Machines and Control, 2019, 23(10): 110-119. [6] 施晓青, 王晓琳, 徐同兴, 等. 高速无刷直流电机自寻优换相校正策略[J]. 电工技术学报, 2019, 34(19): 3997-4005. Shi Xiaoqing, Wang Xiaolin, XuTongxing, et al. Self-optimization commutation correction strategy for high-speed brushless DC motor[J]. Transactions of China Electrotechnical Society, 2019, 34(19): 3997-4005. [7] 弓箭, 廖力清, 叶冰清. 基于高精度电感法的无刷直流电机起动及反电动势同步检测稳定性研究[J].电工技术学报, 2017, 32(5): 105-112. Gong Jian, Liao Liqing, Ye Bingqing.Brushless DC motor starting based on high precision inductance method and study on the stability of BEMF synchronous detection[J]. Transactions of China Electrotechnical Society, 2017, 32(5): 105-112. [8] Chen Wei, Liu Zhibo, Cao Yanfei, et al.A position sensorless control strategy for the BLDCM based on a flux-linkage function[J]. IEEE Transactions on Industrial Electronics, 2019, 66(4): 2570-2579. [9] Lee A, Wang S, Fan C.A current index approach to compensate commutation phase error for sensorless brushless DC motors with nonideal back EMF[J]. IEEE Transactions on Power Electronics, 2016, 31(6): 4389-4399. [10] Zhou Yangzhong, Zhang Dengling, Chen Xudong, et al.Sensorless direct torque control for saliency permanent magnet brushless DC motors[J]. IEEE Transactions on Energy Conversion, 2016, 31(2): 446-454. [11] 李红, 金浩, 李海涛, 等. 一种基于电机虚拟中性点的无刷直流电机无位置换相误差闭环校正方法[J].电工技术学报, 2017, 32(1): 175-182. Li Hong, Jin Hao, Li Haitao, et al.Closed loop control commutation strategy of brushless DC motors without position sensor based on virtual neutral point[J]. Transactions of China Electrotechnical Society, 2017, 32(1): 175-182. [12] 孙小丽, 邓智泉, 王骋. 一种基于平均转矩控制的无刷直流电机无位置传感器方法[J]. 电工技术学报, 2018, 33(13): 2905-2913. Sun Xiaoli, Deng Zhiquan, Wang Cheng.A sensorless method based on average torque control for brushless DC motor[J]. Transactions of China ElectrotechnicalSociety, 2018, 33(13): 2905-2913. [13] Zhou Xinxiu, Chen Xi, Lu Ming, et al.Rapid self- compensation method of commutation phase error for low-inductance BLDC motor[J]. IEEE Transactions on Industrial Informatics, 2017, 13(1): 1833-1842. [14] 姚绪梁, 林浩, 鲁光旭, 等. 一种基于线电压差积分的无位置传感器无刷直流电机换相误差检测和校正方法[J]. 电工技术报, 2019, 34(22): 4651-4660. Yao Xuliang, LinHao, Lu Guangxu, et al. Line voltage difference integral method of commutation error adjustment for sensorless brushless DC motor[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4651-4660. [15] 陈炜, 刘会民, 谷鑫, 等. 基于反电动势函数的无刷直流电机无位置传感器控制方法[J].电工技术学报, 2019, 34(22): 4661-4669. Chen Wei, Liu Huimin, GuXin, et al, A position sensorless control strategy for brushless DC motor based on the back-electromotive force function[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4661-4669. [16] Park J S, Lee K, Lee S G.Unbalanced ZCP compensation method for position sensorless BLDC motor[J]. IEEE Transactions on Power Electronics, 2019, 34(4): 3020-3024.
2021, Vol. 36 
