龙德平, 马钧华.基于28069M的参数辨识和无位置控制算法研究[J].轻工机械,2018,36(3):51-56 |
基于28069M的参数辨识和无位置控制算法研究 |
Research of Parameter Identification and Sensorless Control Algorithm Based on 28069M |
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DOI:10.3969/j.issn.1005 2895.2018.03.010 |
中文关键词: 电机控制 参数辨识 电压重构 实际死区时间 无位置控制 |
英文关键词:motor control parameter identification voltage reconstruction real dead time sensorless control |
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中文摘要: |
针对电压检测中的滤波环节会产生相位滞后,对高速区的观测器造成不良影响的问题,在研究TI公司28069M的参数辨识及无位置控制算法的基础上,引入
了电压重构算法来代替通常的电压检测。分析了电压重构中实际死区时间的影响。利用同一台电机电阻辨识结果不变的特性,设计了利用2次电阻辨识获得实际
死区时间的方法,完善了电压重构公式,提高了电压重构的精度。使用电压重构代替电压检测,进行参数辨识及无位置控制实验,在验证28069M算法有效性的同
时,也说明改进后的电压重构算法具有工程实用性。 |
英文摘要: |
Filter in voltage detection can cause phase lag, which affects the estimator in the range of high speed. Voltage detection was replaced by voltage
reconstruction algorithm to solve the problem while researching the parameter identification and sensorless control algorithm of TI 28069M. The effect of real dead time on the voltage
reconstruction was analyzed. Using the characteristic that the stator resistance identification results of the same motor remained the same, the method to get the real dead time by identifying
the resistance twice was designed, the voltage reconstruction formula was completed and the accuracy was enhanced. The parameter identification and sensorless control experiments were
carried out by using the voltage reconstruction instead of voltage detection. The results show the effectiveness of 28069M algorithm and the practicability of voltage reconstruction can be
used in practical application. |
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