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标题：基于ｄＳＰＡＣＥ的直流电机非奇异终端滑模控制 |
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作者：吴秀珍，邵雪卷，陈志梅 |
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| 2016年第4期 访问次数：199次 |
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摘要：直流调速系统采用PI控制时存在转速超调，且抗扰性能较差，为改善系统输出响应，将非奇异终端滑模控制用于双闭环调速系统中。选取非线性滑模面使转速误差按预定轨迹在有限时间内收敛至零，解决了超调问题；控制律中使用负载观测项，保证了滑动模态下系统对扰动的不变性。基于dSPACE平台的实验结果表明，该方案下的系统跟随性能和抗扰性能均有明显提升。
关键词：PI控制；非奇异终端滑模控制；双闭环调速系统
Abstract: Overshoot exists in DC speed regulating system with PI control, and the antiinterference ability is poor, in order to improve the output response of the system, nonsingular terminal sliding mode control was applied to doubleclosedloop speed regulating system. The selection of nonlinear sliding mode surface made speed error converges to zero within limited time according to the desired trajectory, thus the overshoot was eliminated. The item of load observation in the control law ensured the system invariability of disturbance in sliding mode. Experimental results based on dSPACE platform show that the following performance and the antiinterference ability of the system with this scheme are obviously improved.
Key words: PI control; nonsingular terminal sliding mode control; doubleclosedloop speed regulating system
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