Stability analysis of generalized predictive control with input nonlinearity based - on popov s theorem 定理的输入非线性广义预测控制系统的稳定性分析
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Lomonosov , mendelev , pavlov , ciolkovsky , popov , among others , left their names in the world history of science and technology 罗蒙诺索夫、门捷列夫、巴甫洛夫、齐奥尔科夫斯基、波波夫等，都是世界科技史上的光辉名字。
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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。
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Gatsioudis handed the torch to russian swimmer alexander popov , who had won two gold medals at the 1992 olympics , two in 1996 and a silver in 2000 盖茨欧迪斯把火炬传递给俄罗斯游泳名将亚历山大?波波夫,他在1992年和1996年的奥运会上分别获得两枚金牌,在2000年奥运会上获得一枚银牌。
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It was on january 25th , 2004 in kiev , ukraine , that a number of prominent professionals including donnie burns , stanislav popov and leonid pletnev signed the first agreement of mutual cooperation and support with a “ so called ” amateur federation called idu 2004年1月25日，在乌克兰的基耶夫，一批职业人士，包括东尼本，斯坦尼兹拉夫波波夫，莱昂纳德普列涅夫，签署了第一份与所谓的业余联合会，叫idu ,互相合作与支持的协议。
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Gatsioudis will hand the torch to russian swimmer alexander popov , who won two gold medals at the 1992 olympics , two in 1996 and a silver in 2000 . runners on the first few days include prince albert of monaco , who took part in former winter olympics and legendary pole vaulter sergei bubka 盖茨欧迪斯将把火炬传递给俄罗斯游泳名将亚历山大波波夫，他在1992年和1996年的奥运会上分别获得两枚短距离项目的金牌，在2000年奥运会上获得一枚银牌。
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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。
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Non - affine nonlinear systems via bounded controls and kalman - yakubovitch - popov lemma of affine passive systems are stabilized . several kinds of nonlinear systems with uncertainty by using stability theory of cascaded passive systems are stabilized robustly . the relative weaker sufficient conditions of stabilizing a class of driven - driving systems by using the concept of zero - state - detectability are put forward 运用仿射无源系统的kalman - yacubovitch - popov引理，饱和镇定非仿射非线性系统；运用联级无源系统的稳定原理鲁棒镇定几类不确定系统；运用零状态可探测概念，给出了镇定从驱动系统相对较弱的充分条件。
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The design methods of the orpadtc , which are based on lyapunov stability and popov hyperstability , are discussed . in the chapter six , simulations are done for a few typical first order upldt and second order upldt . the simulation results prove that the orpadtc has good power in dead - time compensating and adaptive tracing when the process being controlled has terrible uncertainty and parameter perturbation , and it is easy to design 第六章对几个典型的带有大时滞的一阶、二阶过程及高阶过程进行了实例设计与仿真，证明了在受控过程存在严重不确定性的情况下，对象参考参数自适应时滞补偿器具有良好自适应跟踪能力和时滞补偿能力，并且易于设计应用。
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Few papers are concerned with system ' s dynamic performance . on one hand , it is difficult to study a nonlinear system , on the other hand , the methods in many papers may be somewhat conservative . for example , when popov rule is applied to this kind of system , it is actually a problem of absolute stabilization which results in the conservative 这一方面是由于研究非线性系统本身具有难度，另一方面也由于以往许多研究方法具有一定的保守性，如利用popov准则来研究此类系统时，实际上处理的是扇形非线性系统的绝对稳定性控制问题，所以用此类方法处理饱和这种特定的非线性特性时，不可避免地带来了保守性。
