采用模态集结法对其高阶模型进行降阶。
Then the high order model was reduced by the modal aggregation method.
模态展开法是模型降阶中常采用的方法。
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.
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.
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.
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.
探求一类变系数方程的求特解的方法以及对方程的降阶。
The paper investigates the solution of a class of linear homogeneous differential equations with varied coefficients and methods of decreasing order of the DE.
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.
通过引入状态变换，得到了一类降阶形式的状态估计问题。
By introducing state transformation, a reduced-order state estimation form is achieved.
本文从能量最优逼近的角度论述了一种新的模型降阶方法。
In this paper, a new model reduction method is developed from the viewpoint of optimal approximation to the energy.
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.
此方法大大减少了公式推导量，而且得到的是降阶的耦合方程组。
This method obviously simplifies the derivation of formulas, and obtains the coupled equations with lower order.
根据降阶的系统模型、利用基本CRS算法对控制器参数进行优化。
The optimization of the controller parameters with the CRS algorithm based on the reduced-order modeling is presented.
此外，还提出了一种新的降阶方法：快、慢模态降阶法(SFMOR)。
Further more, this paper develops a new order reduction method: slow-fast mode order reduction (SFMOR) method.
通过一些设计实例可以看出本文提出的方法是很有效的控制器降阶途径。
Some numerical examples show that the method presented in this paper is an efficacious way to perform controller reduction.
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.
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.
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.
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.
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.
通过求解利用降维状态观测器的静态输出反馈，可得到降阶控制的最优反馈增益阵。
The optimal feedback gain matrix can be obtained by solving a static output feedback controller problem.
在这一背景下，本文首先阐述了模型降阶的基本原理，以及信号完整性分析的意义。
Under such background, this paper first introduces the principles of model order reduction and the significance of signal integrity analysis.
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.
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.
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.
得到了根据插值函数来计算刚度矩阵秩的计算公式，并对几种降阶积分单元进行了验算。
A formula based on the interpolation for the rank of the element stiffness matrix is presented, and some reduced integration elements are examined.
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.
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.
另外，利用顶点位置的调整，给出一条降阶曲线逼近原曲线的方法，同时考虑了它们的误差。
On the other hand, by adjusting the given vertices, an approximation method for degree reduction of bezier curve is presented and the error is estimated.
基于主蒸汽压力降阶近似模型和二次型最优控制原理，给出了主蒸汽压力的LQ次优调节策略。
Based on degraded and approximate model of main steam pressure and linear quadratic optimal control theory, the LQ sub-optimal regulation strategy is presented.
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