提出了基于H2范数的系统降阶准则，并且利用遗传算法实现了基于该准则的系统降阶。
The reduced order modeling, which is in H2 norm criterion, is put forward, and the method to resolve it based on genetic algorithms is obtained.
作为大系统鲁棒滤波研究，本文利用线性矩阵不等式得到了一个新的线性系统降阶鲁棒滤波算法。
A new reduced-order robust filtering method for linear system is derived based on linear matrix inequation methods.
在此基础上，提出并研究了非线性系统降阶观测器的设计问题，给出了降阶观测器的具体设计方法。
On the base, the design problem of order-reduced observers for nonlinear systems is presented and studied, the actual design is method is also given.
对于高阶离散混沌系统也可以采用上面的变换将系统降阶，变成一阶差分方程组进行求解，从而离散混沌系统都可以通过简单的编程实现数值仿真。
Then for higher order chaotic discrete-time system, the approach discussed can be degraded to one order difference equation. As a result, chaotic discrete-time system can be easily solved by Matlab.
然后结合输电系统的实际情况分析计算了降阶模型误差对最优励磁控制的微动态稳定鲁棒性的影响。
The effect of the modelling error on the micro-dynamic robust stability of an optimal excitation regulator is calculated according to the actual conditions in a transmission system.
借助于模型降阶技术，在不显著降低系统性能的前提下，降低模型的阶数以简化设计。
With the help of model reducing technique, full order model is reduced to simplify the design without degrading much of the performance.
利用广义系统典范型，将广义系统状态估计问题转化为一个降阶常规系统的状态估计问题。
By a canonical form of descriptor systems, the state estimation problem of generalized systems is transformed into the state estimation problem for reduced - order conventional systems.
利用慢流形和快流形的概念，研究了电力系统三时间尺度动态模型降阶的条件。
The condition for the reduction of a three time scale power system model is studied by using the concepts of fast and slow manifolds.
基于降阶闭环传递函数可对各机组从而对整个多机系统的小扰动稳定性进行有效的分析。
Using reducing-order closed-loop transfer function, small signal stability of each machine even the whole multi-machine system is analyzed efficiently.
这一方法的提出避免了传统方法的缺点，降阶系统达到了非常理想的性能。
This new method avoids the disadvantage of other traditional technique, and the characters of reduced order system with it are ideal.
利用系统内外分解方法，得到了最优降阶状态观测器。
An optimal reduced order state observer is obtained by using system decomposition.
基于该系统，给出了一种降阶自适应反推控制器的设计方案。
Based on the system, a design scheme of reduced-order adaptive backstepping controller is given.
提出了一种新的基于降阶网络雅可比矩阵的电力系统状态估计可观测性分析方法。
A new observability analysis algorithm for power system state estimation based on reduced network Jacobian matrix is proposed.
本文介绍一种离散系统模型降阶的混合方法。
A mixed method of discrete system model reduction is proposed.
连分式法是一种简便而行之有效的降阶法，但它不能保证系统的稳定。
Continued fraction theory is a kind of simple and efficient order-reduction means, but it can not guarantee the stability of the system.
本文对采用继电型自适应律的模型参考自适应控制系统提出了一种新的设计方法，并获得一种降阶自适应控制器。
This paper deals with the design problem of a model reference adaptive control system using relay-type adaptive law. A novel design method is presented and a reduced adaptive controller is obtained.
但对于多时间尺度的电力系统模型降阶问题而言，还必须研究快流形的存在性及其基本特征，以给出固定系统慢动态的降阶条件。
But for a multi time scale power system, existence and fundamental characteristics of fast manifolds must also be studied in order to obtain the model reduction condition of fixing slow dynamics.
提出了一种多机电力系统小扰动稳定分析的解耦降阶法。
A decoupling and reducing-order method is brought forward to analyze small signal stability of multi-machine power system.
模型降阶，时滞系统，广义系统，鲁棒控制。
Model reduction, delay systems, descriptor systems, and robust control.
提出一种估计异步电机转子速度和转子磁链的新型降阶推广卡尔曼滤波器算法，建立了基于此算法的异步电机无速度传感器矢量控制系统。
A speed sensorless vector control system of induction motor with estimated rotor speed and rotor flux using a new reduced order extended Kalman filter is proposed.
本文对单输入单输出系统给出了可逆性的判断准则，建立了新的降阶逆系统的构造方法。
This paper discusses the invertibility of single-input single output linear systems . A new method for construction the reduced inverse systems is derived.
研究了基于积分最小二乘指标的SISO时滞系统频域辨识与频域模型降阶问题。
Based on the integral least_squares index, a new approach to frequency_domain identification and model reduction of SISO systems with delay is proposed.
对无穷维分布参数结构，依据有限维降阶模型设计控制器会导致系统闭环性能变差，并有可能使系统失稳。
For distributed structures, the closed loop performance of the control system might be badly reduced without considering the spillover, and is likely to become unstable.
本文提供的算法不仅可用于设计多输出系统的最低阶多线性函数观测器，而且也可用于设计多输出系统的降阶状态观测器。
The algorithm developed in this paper can be used to design the minimal order observers for linear functions of the state vector and the reduced order state observers of multi-output systems.
本文研究了线性离散随机系统的模型降阶和最优输出反馈矩阵的设计问题。
In this paper, the problems of the model reduction and the design of optimal output feedback matrix are discussed for linear stochastic discrete-time system.
然后通过引入降阶观测器，得到一个误差系统。
Then, by introducing a reduced-order observer, an error system is obtained.
研究具有二阶可降阶微分约束的力学系统的形式不变性。
A form invariance for mechanical systems with second_order reducible differential constraints is studied.
基于大系统理论中的集结法，提出了一种简便的动力学模型降阶处理方法。
A simple reduced-order method for dynamic model is proposed on the basis of the aggregation method.
基于混合误差模型，采用滤波器降阶的方法，设计了一种高阶系统跟踪低阶参考模型的混合模型参考自适应控制方案。
On the basis of hybrid error model and adopting diminution order method by filter, an adaptive control scheme of hybrid model has been designed for high order system following the low order model.
本文给出一种新的控制系统最优降阶技术并介绍其在控制系统设计中的应用。
In this paper, an optimal reduction technique and its applications in control system design are described.
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