摘要
针对无称重传感器的直驱式永磁曳引系统起动时易发生倒溜问题,提出一种采用自抗扰的转矩控制策略,用以乘梯舒适性。利用扩张状态观测器与非线性误差反馈理论,设计自抗扰控制器来提升系统的动态响应速度,增强鲁棒性,从而减小电梯起动过程的倒溜距离和速度。为了选择最优控制参数,针对扩张状态观测器控制增益对系统响应的影响进行研究。另外,基于李雅普诺夫稳定性理论,对控制系统的稳定性进行分析。最后,在11.7 k W永磁曳引电机驱动系统上进行了实验,实验结果验证了该方法的有效性。
A torque control strategy adopting active disturbance rejection control （ADRC） is proposed to attenuate the sliding of direct-drive traction systems without weight-transducer information. By using the extended state observer （ ESO） and the nonlinear error feedback （ NLEF） controller,the active disturbance rejection controller is designed to accelerate the dynamic response and enhance the system robustness. As a result, the sliding distance and speed can be reduced during the elevator startup. In order to select the optimal parameters, the performance by the control gain is analyzed. In addition, the stability of NLEF controller is analyzed via Lyapunov theory. The feasibility of the proposed strategy is verified by the experimental results on an 11.7 kW elevator traction machine.
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第A02期203-209,共7页
Transactions of China Electrotechnical Society
基金
国家自然科学基金项目资助(51522701)
关键词
直驱式曳引系统
无称重传感器
扩张状态观测器
非线性误差反馈
Direct-drive traction systems, weight-transducerless, extended state observer, nonlinear error feedback
