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| Abstract: |
| A simple method is proposed to optimize the thickness parameter of the boundary layer of the saturation function in the Complementary Sliding Mode Control (CSMC). A pair of complementary sliding surfaces are constructed. And the Taylor series is used to estimate the steady-state error of CSMC system to optimize the parameter value for the boundary layer of the saturation function without artificial settings. This proposed CSMC strategy is applied to the speed regulation in permanent magnet synchronous motor with lump uncertainties. The experimental results show that the proposed CSMC strategy can obtain an optimal value for the boundary layer parameter, effectively suppressing the chattering, and keep an excellent system performance. |
| Key words: CSMC saturation function boundary layer parameter Taylor series speed regulation |
| DOI：10.11916/j.issn.1005-9113.17150 |
| Clc Number:TP272 |
| Fund: |
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| Descriptions in Chinese: |
| 饱和函数边界层参数优化的互补滑模速度控制 黄宴委，谢雨晴，黄文超 （福州大学 电气工程与自动化学院， 福州 350116） 摘要：利用互补滑模实现永磁同步电机的速度调节，引入饱和函数来改进符号函数，以减少抖振现象。但是，饱和函数的引入会增加边界层厚度参数，而边界层厚度参数会影响系统的稳态性能，需要人为设置。针对边界层厚度参数优化问题，本文提出一种简便方法。首先构造一对互补滑模面，然后利用泰勒级数对互补滑模系统的稳态误差进行近似展开，可得到饱和函数边界层厚度参数与切换增益的关系，进而获得边界层参数优化值，无需对边界层参数进行人为设定。将基于饱和函数厚度参数优化的CSMC应用于永磁同步电机速度控制，实验结果表明所提出的CSMC方法能够获得最佳的速度精度。 关键词：互补滑模控制(CSMC)；饱和函数；边界层参数；泰勒级数；速度调节 |
