超稳定性 meaning in English
hyperstability
superstability
ultrastability
Examples
- On super - stability and vitality of constitution of u . s
简论美国宪法的超稳定性机制 - By using popov ' s hyperstatic theory , an adaptive fuzzy controller is proposed to control a class of singular - input singular - output nonlinear system
对于一类常见的单输入单输出的非线性系统，利用超稳定性理论来设计自适应模糊控制控制器。 - Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development , the dissertation put great emphasis on the work as follows , with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing , which is an adaptive closed - loop flux observer and different from the traditions . a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation , we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control . an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus , sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
针对上面提到的直接转矩控制的缺陷和未来直接转矩控制技术发展方向，本论文重点做了以下几个方面的工作，目的在于提高dtc系统的综合性能： ( 1 )提出一种新型的速度磁链观测器，新型的速度磁链观测器采用自适应闭环磁链观测器代替传统的积分器从而提高磁链观测的精度，并且根据popov超稳定性理论推导出转速的新型自适应收敛律； ( 2 )改善系统的低速运行性能，主要从提高低速时对定子磁链的估计精度入手，提出了一种提高定子磁链观测精度的新思路? ?利用基于bp网络增广pidbp学习算法来实时在线地修正定子电阻参数； ( 3 )采用数字信号处理器dsp实现系统全数字化硬件控制，结合ti公司生产的tms320lf2407芯片，设计了直接转矩控制系统的实验装置； ( 4 )提出了基于sercos总线网络化分布式的直接转矩控制系统， sercos ( serialrealtimecommunicationsystem )是目前最适合同步和协调控制的串行实时通信协议； ( 5 )基本勾勒出整个控制系统的硬件和软件设计基本框架，详细描述一些实验中的具体的细节问题。 - Secondly , the performance of the acousto - optic steering system is deteriorated as a result of the coupling because of nonlinear of quadrant detector and the pointing error introduced by satellite platform vibration . for this problem , this paper introduces the model reference adaptive control system , and presents the perfect model . the model reference adaptive controller is designed to force the output of the acousto - optic steering system following the output of the perfect model to improve the system performance
其次,针对声光偏转系统由于器件的非线性造成的耦合和平台振动造成的指向误差导致系统性能恶化问题,引入了模型参考自适应控制系统,提出了理想的模型,设计了模型参考自适应控制器,强迫性能恶化的声光偏转系统的输出跟随理想模型的输出,使其性能改善,利用超稳定性理论确定自适应参数以保证系统的稳定性。 - Based on the former researches , the speed estimation and rotor flux observation methods are studied using the theory of model reference adaptive system . considering the time variability of the stator and rotor parameters of induction motors , the methods make real - time identification of the parameters to retain the dynamic performance of the drive system
在前人研究的基础上，本文应用基于超稳定性理论的模型参考自适应系统，对无速度传感器矢量控制系统的转速估计和转子磁链观测进行研究，考虑电机定转子参数的时变性，对电机的一些定转子参数进行实时辨识，以保持系统的动态性能。