【摘要】 针对具有非线性、耦合性及参数变化的多电机变频调速系统,提出了基于自抗扰的支持向量机广义逆(SVMGI)解耦控制。建立三电机系统的数学模型,引入广义逆(GI)系统和支持向量机(SVM)理论去构建原系统的支持向量机广义逆(SVMGI)系统,通过SVMGI系统和原系统的串联构成伪线性复合系统,最终实现了三电机系统转速和张力的解耦。另外,为了提高伪线性复合系统的鲁棒性和抗扰动性,提出了附加自抗扰控制。仿真结果表明,转速和张力不但可以很好地解耦,而且系统的跟踪性能和鲁棒性也有了明显提高。更多还原

【Abstract】 Since multi-motor variable frequency speed-regulating system was nonlinear,coupling and prone to change for its parameter,in which active disturbance rejection control of support vector machines generalized inverse( SVMGI) was adopted. Above all,a mathematical model of the three-motor system was bulit,then the theory of the generalized inverse( GI) and support vector machines( SVM) were introduced so as to build SVMGI of the original system,so the pseudo-linear composite system would be formed by the connection between SVMGI and the original system,and finally complete the decoupling of speed and tension. In addition,in order to improve the robustness and anti-disturbance of the pseudo-linear composite system, the accessional active disturbance rejection was also introduced. The simulation results showed that the speed and tension of the system can not only achieve decoupling, and tracking performance and robustness of the system have significantly improved.更多还原