李雅普诺夫稳定性 meaning in English
lyapunov stability
Examples
- System stability is realized . the control strategy is extended hybrid chaotic system and a designing controller method of hybrid chaotic system is deduced . from lyapunov stability theory of nonlinear system , got convergent region of system
在此基础上，将该控制策略推广到混杂混饨控制系统中，并进一步推导了混杂混炖系统控制器的设计方法，根据非线性系统李雅普诺夫稳定性理论，得出了系统的收敛区域。 - According to a real ac vf asynchronous dynomometer system , first step , the paper deducts the mathematic model of the system , and analyzes the system stability on the basis of the ? irst method ? of lyapunov stability , then draws the eigenvalues of the system under the situation of the variation of different parameters , and results in finding the changing regularity of the system stability caused by varitation of variant system parameter ; secondly , sets up a system simulation model in terms of a real power feedback ac vf asynchronous dynomometer system , and emulates different running states of the system , not only analyzes methods of adjusting parameters to improve the working performance in the field of weak flux of the system , but also proves the effectiveness of the methods via simulation ; at last , compares the simulation results of the model with the experiment results of the real system , and show the nearly correctness of simulation system , and also confirms the practical usage of the simulation system as an effectively assistant tool in the process of developing and design a real dynomometer system
首先根据实际系统工作原理推导出系统的数学模型，在系统数学模型的基础上依据李雅普诺夫稳定性判别第一法进行了系统稳定性分析，绘制了系统不同参数变化时的系统特征值变化图，从而得到系统部分参数变化对系统稳定性的影响规律，为实际系统的参数设计提供了参考；然后又以系统数学模型为基础，依据实际的电封闭交流变频异步测功机系统建立系统仿真模型，模拟不同工况下系统运行情况，分析了改善弱磁区系统性能的某些系统参数调节方法，通过仿真证明了此类方法的有效性；最后将系统模型与实际系统的实验结果进行了比较，验证了仿真系统模型的基本正确性，也肯定了这一仿真系统在实际测功机系统设计中作为辅助工具的实用性。 - This method first builds up an optimal model which have a good performance , then according to the error and the derivation of the error between the output of the optimal model and the output of ac motor drive , design model controller by lyapunov theory
该方法首先建立性能指标最优化模型，然后利用李雅普诺夫稳定性理论设计出模式控制器。根据最优模型输出与实际电动机输出的偏差及偏差导数，在模式控制器的作用下，使实际电动机的输出跟随最优模型的输出，直至偏差为零。 - Based on lyapunov stability theory and decentralized control theory of large - scale systems , sufficient conditions for asymptotic stability of the closed - loop fuzzy large - scale systems are derived via lmi technology , and by using information of membership functions these lmi - based sufficient conditions are relaxed and less conservative stabilization conditions are obtained
基于李雅普诺夫稳定性理论及大系统分散控制理论，采用lmi方法导出了该类模糊大系统在采用dpdc模糊控制器时闭环渐近稳定的充分条件，并利用隶属函数的信息对该稳定性条件进行了改进，得出了保守性更小的稳定性条件。