stability for disturbance

It is important to do the research of control method for improving stability of generator. The governor additional control method used on steam turbine and hydro turbine was proposed in the thesis based on the restraining disturbance method of H ∞ robust control theory.

研究提高发电机稳定性的控制方法具有重要意义，本文利用H∞控制理论的干扰抑制方法对汽轮机和水轮机调速系统的附加控制进行了研究。

For sliding mode control possesses the robustness to uncertainty and disturbance, which is suitable for complex time-varying TCP/ IP network system, an AQM controller based on sliding mode control theory is proposed, and the stability analysis is given.

由于滑模控制方法对系统的参数不确定性以及干扰具有很强的鲁棒性，针对TCP/IP网络这种复杂的时变系统，给出了基于滑模控制理论的AQM控制器的设计，并对其进行了稳定性分析。

By flattening the noise amplification due to the waterbed effect in the whole disturbance amplification frequency band intuitively, the designed feedback controller can suppress the disturbance amplification to almost the minimum value for the given disturbance attenuation and ensure good stability of the system.

通过在整个控制频带展平噪声放大，噪声放大峰值可以被抑制到给定降噪情况下的最小值，保证了系统好的稳定性。

Based on the concept of two person zero sum differential game, the sufficient conditions for the existence of an H ∞ state feedback controller to guarantee the robust stability and disturbance attenuation level is obtained, and the solution is given in terms of Hamilton Jacobi Isaacs equation.

基于二人零和动态对策理论，给出并证明了系统鲁棒稳定以及扰动衰减问题解存在的充分条件，通过求解离散时间Hamilton jacobi Isaacs方程给出了其鲁棒H∞状态反馈控制解。

A generalized form of the second order local iteration method is given for the obtained nonlinear discretized eigenvalue problem, hence both temporal and spatial stability can be observed similarly, and disturbance eigenmodes and their eigenfunctions are gained simultaneously.

对所获非线性离散特征值问题给出了一个通用形式二阶迭代局部算法，实现了时间模式和空间模式的统一求解，并将扰动特征值及其特征函数同时得到。

Probabilistic Small Disturbance Rotor Angle Stability Analysis for Multi-machine Power Systems Including Asynchronized Generators

含异步化同步发电机电力系统小扰动功角稳定性的概率分析有功功率自动分配装置

Based on the Lyapunov stable theory, a linear state feedback controller is presented to guarantee the asymptotic stability and achieve the bounded state variable for any bounded disturbance.

基于Lyapunov稳定性理论，设计了一个线性状态反馈控制器，该控制器对于任何给定的有界干扰，都能保证系统渐近稳定并获得有界的状态变量。