因此,即使现在控制这些新型屏幕仍然需要掌握一整套技术,它们仍然可能代表着未来的潮流。
So, even though yet another set of skills will need to be mastered to control these screens, they may well be the wave of the future.
这次不完全的私有化与区域内更大的一股国家控制油气的潮流背道而驰。典型的是最近委内瑞拉,玻利维亚和厄瓜多尔最近发生的国有化或合同修改。
This partial privatisation bucks a regional trend of greater state control over oil and gas, exemplified by recent nationalisations or contract changes in Venezuela, Bolivia and Ecuador.
通过控制整个从工厂到店铺的流程,ZARA可以对时装潮流和消费者的品味有快速的反应。提供来自欧洲的如暴风般的新奇东西。
By controlling the entire process from factory to shop floor, Zara can react quickly to changing fashion trends and customers' tastes, providing a "newness" that has taken Europe by storm.
在现代电力系统中,特别是在电力市场环境下,电力潮流往往需要人为控制。为此,移相器在电力网络中的应用日益普遍。
In modern power systems, especially in the circumstances of deregulation, the power flow often needs lo he controlled. Therefore the application of the phase-shifting transformer is increasing.
本文对潮流计算中互联电网各区域间的联络线功率控制的模拟计算方法进行了研究。
This paper studies the simulation method of tie line power flow control among areas of an interconnected network in load flow calculation.
认为电力电子技术不仅可以在高压输电系统中用于提高稳定、控制电压、相角和潮流,也具备了快速控制大电网的能力。
It is also believed that power electronic technology is able to not only raise and stabilize the controlling voltage, phase Angle and tidal current, but also fast control big power supplying network.
稳态控制潮流的设定空载频率及空载电压算法。
Setting open-circuit frequency and voltage algorithm for steady-state control power flow .
所要控制的要素包括系统频率、联络线潮流、线路电流、设备的负荷和电压。
The elements to be controlled include system frequency tie line flows line currents equipment loading and voltage.
但是我们现在对他们有一个责任,对他们的孩子有一个责任,那就是控制未来的移民。跟踪过去的移民潮流,确保移民的同化,结合,和向上流动性。
But we now have an obligation to them, and to their children, to control future immigration - as we have following previous immigration waves - to ensure assimilation, integration and upward mobility.
仿真和实验表明,该补偿器具有良好的潮流控制作用,结构特点满足分布式FACTS需要。
The simulation and experimental results are presented, verifying that the designed DSSC has good performance of power flow control, and configuration of DSSC is adaptable for D-FACTS.
网流直流法是适用于计算机在线控制和计算的一种简便潮流计算法。
The direct current method is a simple and convenient method for calculating power system load flow which is applicable for on line control and calculation by computer.
给出一种基于潮流追踪和发电机再调度的割集断面潮流控制方法。
An interface power control strategy based on power flow tracing and generator re-dispatch is presented.
失稳故障支路退出运行使得故障后系统失去静态可行潮流解,增加了分析与控制的难度。
The outage of fault branches can cause the system to lose static load flow solutions, which increases the difficulty of analysis and control.
该方法能够使系统的潮流计算与UPFC的控制得到充分的协调,并能用于计算具有多个UPFC的系统潮流。
The method can bring controlling of UPFC to accord with power flow simulation in the best, and can calculate the power flow with several UPFC.
研究了自适应统一潮流控制器(U PF C)模糊逻辑辅助阻尼控制器的设计方法。
In this paper, an adaptive fuzzy-logic damping control scheme is proposed for unified power flow controller (UPFC).
确定了统一潮流控制器在不同调节控制方式下所对应的串联注入电压幅值和相位关系。
The relations of the amplitude and the phase of the injected voltage by the series converter of the UPFC are defined in difference control patterns.
通过推导统一潮流控制器(UPFC)稳定控制器的状态方程,分析了UPFC稳定控制器对同步发电机电磁转矩的影响。
By analyzing the state equations of unified power flow controller (UPFC) stabilizer, the influence of UPFC stabilizer on electromagnetic torque of synchronous generator is presented.
沙波形成主要受潮流底流的水动力作用控制,并与构造抬升有关。
The formation of sand waves is controlled mainly by underset of tidal current, and also related to tectonic uplift.
统一潮流控制器(UPFC)可以有效控制线路的有功和无功功率。
UPFC (Unified power Flow Controller) is always used to control the active and reactive power of transmission lines.
结果表明:基于本文提出的FACTS模型和控制参数下,采用路径跟踪内点方法求解含有FACTS的电力系统潮流优化控制问题,具有较好的性能。
It shows a good performance to solve the optimal power flow problem with FACTS control by non-linear interior point method under the model and parameters present in the thesis.
提出了一种应用神经网络控制策略为静止同步串联补偿器(SSSC)设计的新型潮流控制器。
Artificial Neural Network controller is proposed in this paper to design the new power flow control for SSSC.
潮流控制是UPFC的串联补偿控制的基本功能之一,论文深入研究了UPFC的智能潮流控制方法。
Power flow control is one of the basis functions of UPFC series compensation control, intelligent power flow control method was studied in the paper.
研究了多机系统中使用统一潮流控制器(UPFC)抑制电力系统多模态振荡的可行性。
This paper investigates the feasibility of damping multi-mode oscillations using unified power flow controller (UPFC) in a multi-machine power system.
在大班教学成为潮流的新形势下,如何提高课堂教学控制力的问题,摆在了每一个高校教师面前。
In the contemporary trend of large-class teaching, it is very important for teachers to improve the ability of control.
若没有发电和频率的精确控制,就会引起不希望出现的联络线潮流。
Without precise control of generation and frequency, undesired tie-line flows will result.
介绍了数字信号处理器的基本结构和功能及其在统一潮流控制器实验装置中的应用。
The structure and function of Digital Signal Processor (DSP) and the application of DSP on UPFC experimentation device are presented in this paper.
径向基函数神经网络的理论基础是函数逼近,用一个两层的前向网络去逼近任意函数,以更好地进行潮流控制。
The theoretical basis of ANN is function approximation, it USES a two - level feedforward neural network to approach arbitrary function to realize better power flow control.
提出了一种包含统一潮流控制器(upfc)的概率潮流算法。
A probabilistic load flow algorithm concerning the Unified Power flow Controller (UPFC) is presented.
半月周期的变化受潮流半月周期变化引起的泥沙供给量的变化控制;
The semi-monthly changes of the mud fluid are controlled by the amount of fine sediments supply.
建立了UPFC的动态模型和潮流模型,这种模型可以减少单个UPFC内部控制器的相互影响。
Then set up the dynamic model and power flow model of UPFC that can reduce the reciprocity of internal controllers of single UPFC.
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