查询词典 transient stability

The direct method is one of the most important methods in the transient stability analysis.

在过去的几十年各国进行了大量的研究，已取得了相当大的进展。

Based on the above results, the new transient stability analysis method of normalized energy function is proposed.

基于上述理论分析，提出了构造电力系统归一化暂态能量函数的方法。

The study of transient stability using entropy in power system is proposed.

三、利用熵的概念，研究了电力系统暂态过程。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

Based on this concept, the method of dynamic multi-dimension order control in Taylor series expansion technique for transient stability analysis is presented.

在计算暂态稳定轨迹的过程中，根据各个状态变量的不同动态特性和计算精度约束，对时间常数不同的环节采用不同的阶数。

Critical clearing time is one of the most important stable indices in power system transient stability analysis.

临界切除时间是电力系统稳定问题分析中最重要的稳定指标之一。

Lastly, the model of Transient Stability Constrained OPF with UPFC is established, and also solved by interior point method.

最后，建立了计及UPFC的暂态稳定约束最优潮流的模型，并用内点法进行求解。

The load model is an important factor influencing power system transient stability.

负荷模型是影响电力系统暂态稳定的重要因素之一。

An individual machine energy function observationally decoupled method has been proposed in this paper, which is able to compute the transient stability region of the machine by measuring its locally available variables.

对大型电力系统，如何利用局部可测信息在线分析其中各别机组的暂态稳定性能是一个长期以来引人入胜，却很少有人涉足的课题。

Linear optimal controller with output feedback also has better dynamic performances, which is examined by transient stability simulation of simple and multi-machine system.

简单系统和多机系统的暂态仿真表明，输出反馈线性最优控制器也具有比较理想的动态品质和调节性能。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了