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首页> 外文期刊>International Journal of Innovative Computing Information and Control >IMPROVED INTEGRAL SLIDING MODE CONTROL METHODS FOR SPEED CONTROL OF PMSM SYSTEM
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IMPROVED INTEGRAL SLIDING MODE CONTROL METHODS FOR SPEED CONTROL OF PMSM SYSTEM

机译：永磁同步电机系统速度控制的改进积分滑模控制方法

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摘要

To improve the disturbance rejection property of permanent magnet syn chronous motor (PMSM) speed control system, the integral sliding mode control (ISMC) method is introduced in the control design of speed loop. However, the simulation and implementation results show that it is difficult to balance the chattering and the anti disturbance capacity. To this end, three kinds of improved ISMC control methods are developed. First, ISMC using linear varying gain is developed. Using this method, the switching gain of ISMC controller can be smaller while still ensuring that the speed state reaches its steady state and the steady state fluctuations can thus be reduced. Moreover, the anti-disturbance capacity of the PMSM system can also be assured. Second, an in tegral sliding mode control based on extended state observer (ESO) is developed. ESO can estimate both of the states and the disturbances simultaneously. By using ESO, an estimate of the lumped disturbances is obtained, which is employed for the feedforward compensation design of the composite ISMC control law. In this case, the controller may take a smaller value for the switching gain without sacrificing disturbance rejection per formance, which helps to reduce large chattering caused by high control gains. Third, an adaptive composite control method combining linear varying gain and ESO is developed to take advantages of both improved methods. These improved methods show advantages in reducing the chattering while ensuring the dynamic and disturbance rejection perfor mance. Both of simulation and experiment results are provided.
机译：为了提高永磁同步电动机（PMSM）速度控制系统的抗干扰性能，在速度环的控制设计中引入了积分滑模控制（ISMC）方法。然而，仿真和实施结果表明，很难在颤振和抗干扰能力之间取得平衡。为此，开发了三种改进的ISMC控制方法。首先，开发了使用线性可变增益的ISMC。使用这种方法，ISMC控制器的开关增益可以更小，同时仍可确保速度状态达到其稳定状态，从而可以减少稳定状态的波动。此外，还可以确保PMSM系统的抗干扰能力。其次，开发了基于扩展状态观察器（ESO）的整体滑模控制。 ESO可以同时估计状态和干扰。通过使用ESO，可以获得集总扰动的估计值，该估计值用于复合ISMC控制律的前馈补偿设计。在这种情况下，控制器可以在不牺牲干扰抑制性能的情况下为开关增益取较小的值，这有助于减少由高控制增益引起的大抖动。第三，开发了一种将线性变化增益和ESO相结合的自适应复合控制方法，以利用两种改进方法的优势。这些改进的方法显示出在减少颤动的同时确保动态和抗干扰性能的优势。提供了仿真结果和实验结果。

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