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| 基于二阶滑模观测器的无刷直流电机转子位置估计 | |
| 引用本文： | 史婷娜,马银银,王迎发,夏长亮. 基于二阶滑模观测器的无刷直流电机转子位置估计[J]. 天津大学学报(自然科学与工程技术版), 2014, 47(8): 697-702 |
| 作者姓名： | 史婷娜 马银银 王迎发 夏长亮 |
| 作者单位： | 天津大学电气与自动化工程学院,天津,300072 |
| 基金项目： | 国家自然科学基金重点资助项目 |
| 摘 要： | 针对一阶滑模观测器(F-SMO)存在的抖振和相位延迟问题,提出了基于二阶滑模观测器(S-SMO)的线反电势(LBEMF)估计策略,将不连续控制作用在滑模变量的高阶微分上,采用超螺旋算法设计控制率,能较好地削弱抖振,得到连续光滑且无滞后的反电势估计值.针对相反电势法存在的相移问题,采用线反电势过零点直接作为换相点的换相策略.仿真和实验结果表明,所提策略能够准确估计无刷直流电机线反电势,获得准确的转子位置换相点,实现无刷直流电机的无位置传感器控制. |
| 关 键 词： | 无刷直流电机 二阶滑模观测器 线反电势 换相策略 |
Rotor Position Estimation of Brushless DC Motor Based on Second-Order Sliding Mode Observer |
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| Shi Tingna,Ma Yinyin,Wang Yingfa,Xia Changliang. Rotor Position Estimation of Brushless DC Motor Based on Second-Order Sliding Mode Observer[J]. Journal of Tianjin University(Science and Technology), 2014, 47(8): 697-702 | |
| Authors: | Shi Tingna Ma Yinyin Wang Yingfa Xia Changliang |
| Affiliation: | 1.School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China) |
| Abstract: | To solve the chattering and phase delay problems existing in first-order sliding mode observer （F-SMO）,line back-electromotive force （LBEMF）was estimated by a second-order sliding mode observer （S-SMO）which applied the discontinuous control function on the high order differential of sliding mode variable and employed a supertwisting algorithm in control design.To deal with the phase shift problem,a new commutation strategy based on LBEMF zero-crossing point was proposed.Simulation and experiment results show that the sensorless control system can estimate LBEMF exactly,and accurate rotor position commutation point is gained. |
| Keywords: | brushless DC motor second-order sliding mode observer line back-electromotive force (LBEMF) commutation strategy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |