查询词典 transient stability

So, When the power system is in transient, the sliding mode control rule is chose directly to make transient component decrease quickly, and when the power system is in stability, the direct current control method based on voltage space vector method is imported to make the error current reduce to zero by inches and avoid surge.

为此，当系统处于暂态时，论文直接选择滑模控制率使暂态分量迅速减小，当系统处于稳态时，引入基于电压空间矢量的直接电流控制方法，使误差电流趋于0缓慢变化，在有效补偿系统无功的同时，提高了系统的动态特性，并大大降低了系统振荡的可能性。

In tailrace tunnels of large hydropower station, a transient mixed free-surface-pressure flow may occur, which has a complex effect on the stability and transient of the power plant.

大型水电工程的尾水隧洞中可能会发生明满交替流动，给电站过渡过程带来很大影响，需要建立合理可行的明满交替流动数值计算模型。

According to time, voltage stability can be divided into longer-term voltage stability and transient voltage stability.

从时间上划分，电压稳定性问题可以分为中长期电压稳定和暂态电压稳定。

The key matter to raise accuracy of transient stability analysis by TEF method is to properly deal with the critical energy point and the critical disturbed trajactoryIn addition, the reason why the critical energy point docs not coincide with the relevant unstable equilibrium point is given.

时至今日，有必要也更有条件再度审视暂态能量函数的内涵与机制。现行的相对于故障后稳定平衡点的暂态能量函数导致的积分路径的虚构在动力学意义上是费解的。那么暂态能量函数应

And single-pole reclosing is an important measure to improve power system reliability and transient stability.

单相重合闸是电力系统提高线路可靠性，保证供电连续性的重要手段。

It has good robustness and adapts to different required capacitive reactances. Digital simulation shows that the proposed method has good performance in transient stability control of practical systems.

本文以伊敏-大庆可控串联补偿输电工程为例，采用西门子公司提供的NETOMAC软件，在数字仿真中较好地实现了TCSC的阻抗控制。

In this paper the basic principle of dynamic simulation with PSS/E is presented; the effectiveness and adaptability of flexible HVDC power transmission model are analyzed, and on the basis of actual power system the quasi steady-state VSC-HVDC dynamic model VSCDCT is simulated. Simulation results show that it is available to apply PSS/E in transient stability analysis of practical large-scale AD/DC power system.

介绍了PSS/E动态仿真的基本原理；分析了柔性直流输电模型VSCDCT的有效性和适用性，并基于实际系统对准稳态直流动态模型VSCDCT进行了仿真研究，仿真结果表明 PSS/E直流模型能够满足大规模交/直流系统仿真的要求。

The handling stability is analyzed, mainly the steering transient response test of steering wheel step input、 the steering transient response test of steering wheel angle pulse input、 return-ability test、 steady static circular test and central steering test are carried out. With those test, how the front suspension system can influence the handling and stability performance is investigated.

在此基础上进一步建立了整车模型，包括前悬架系统、后悬架系统、转向系统、前轮胎系统、后轮胎系统、车身系统，分析了该车的操纵稳定性，主要进行了稳态回转试验、转向盘角阶跃输入、转向盘角脉冲输入、转向回正试验、转向盘中间位置转向试验，并通过这些试验来考察了前悬架对操纵稳定性的影响。

Most LDO regulators before are off-chip so that they are hard to meet the demands of SOC solutions. This thesis is target on SOC applications and analyzes the challenges of stability, transient regulation and line regulation, etc. Trade-off relations between different characterizations are seriously discussed. In order to meet the demand of high precision and self-stability, a newly LDO structure is proposed and design process is carefully described, which manifest many design points. A PMOS is chosen to be the output transistor of this on-chip LDO. To maintain stability, miller capacitor in serious with nulling resistor is used.

以往的LDO大多作为一块独立的芯片难于实现SOC的解决方案，而本文针对集成于SOC的特定应用要求，分析了片上低压降电源调节器在稳定性、瞬态调节、电源调节等诸多方面的难点，论证了各个难点之间所存在的相互折中关系，定义了设计的性能指标，在此基础上，为实现一种高精度、自稳定的片上LDO而提出了一种合理的电路结构，详细描述了电路器件在尺寸选取方面的设计过程，突出了片上LDO中几个主要模块的设计重点。

Choosing the 100kWp stand-alone photovoltaic power system which was built at Sitsang Anduo county as the research object, and using the methods which are used in analyzing the normal power system, we determined that the problems which happened when the load was launched into the system could be classified as the transient stability problem of power system.

以建成运行的西藏安多地区的100kWp独立光伏电站为具体研究对象，结合研究电力系统的方法，判断光伏系统中存在的因带负荷投入运行而产生的电压不稳定的问题，为电力系统暂态稳定性问题。

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