机电复合调速系统反演自适应L_2增益控制  

Back-stepping adaptive L_2-gain control of electromechanical governed system

作　　者：谷志锋[1,2] 朱长青[2] 呼树杰 张晨光[2] 王文婷[2] 

机构地区：[1]石家庄铁道大学电气与电子工程学院,石家庄050043 [2]军械工程学院车辆与电气工程系,石家庄050003 [3]黄骅职教中心,黄骅061100

出　　处：《仪器仪表学报》2017年第7期1723-1730,共8页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金(51407196);河北省自然基金(E2017506007)项目资助

摘　　要：建立了含多个不确定参数和外部扰动的机电调速系统非线性模型,并提出一种基于附加控制变量和可调参数自修正的反演非线性自适应L_2增益速度控制方法,通过引入K类函数和附加控制变量,既提高了机电复合调速系统的稳定控制速度,也克服了在传统反演设计中各子系统虚拟函数设计时都要考虑耗散不等式的不足,与常规调速控制方法进行的仿真结果对比表明,新提出的控制方法能够提高速度控制套等执行部件的响应速度,减小速度控制的超调,有利于提高机电复合调速系统的稳定控制能力。A nonlinear model of eleetromeehanical governed system with multiple uncertain parameters and disturbances is established, and a back-stepping nonlinear adaptive L2-gain speed control （L2-NASC） method with additional control variables and self-modified parameters is proposed. By adopting K-Class functions and additional control variables, the stable speed of the electromeehanical governed system can be improved, and the γ -dissipation inequality can be disregarded in virtual function design. Comparing with the traditional speed control method, the back-stepping L2-NASC simulation results show that the response speed of the operating components, i. e. , as control sleeve, etc. , can be increased, tbe overshoot of the control output can be decreased and the stability of the speed control system can be enhanced.

关 键 词：机电复合调速 反演自适应L2增益控制 鲁棒控制 附加控制变量 可调参数自修正 

分 类 号：TH702[机械工程—仪器科学与技术] TP273[机械工程—精密仪器及机械]