查询词典 power-driven

The basic relationship between the the first half-wave peak value of transient current and the initial firing angles is found by means of analytical method.The practical method is put forward to determine the initial two-phase and the third phase firing angles with the limiting value and the space vector varying track of transient current.And then the subsequent series of firing angles with the even step are calculated by using the speed at the time of re-switching.The suppressive effect to the inrush current is verified with simulation and experiment of rapid soft re-switching control,by which the influence of different speed to rapid soft re-switching course is analyzed besides.3 To analyze the power loss for typical periodically variable running load and deeply study the energy-saving principle and control mode of the intermittent power supply approach. Futhermore,the novel integrated energy-saving control technique is developed on base of the intermittent power supply approach.

通过解析方法找到快速软投入初始触发角与瞬态电流首半波峰值之间的基本关系，进而提出了由限流值和空间向量轨迹确定初始两相和第三相触发角的方法，并以固定步长均匀递减的方式由投入时转速计算出其它后续触发角；结合仿真和实验验证了快速软投入对冲击电流的抑制作用，并分析了不同转速下投入时对电源快速软投入过程的影响。3对典型周期性变工况负载特性进行能耗分析，深入研究断续供电节能机理和控制模式，并进一步发展了以断续供电为主的综合节能控制新技术。

Based on analysis of the features of three-phase four-line power supply system and nonliear load current harmonic pollution,compensation method of simultaneously compensating voltage sag and synthetic power quality of load low-voltage of harmonic current was proposed,and corresonding hybrid unified power quality compensator was also designed.

通过对三相四线制供电系统的特点和非线性负载电流谐波污染分析，提出了可同时补偿电压跌落、谐波电流的负载端低压综合电能质量补偿方法，并设计了对应的混合型低压电能质量综合补偿器。

The specialty that develops shape and garbage power industry from the hair of market of domestic electric power sets out, analysed the dominant position that develops garbage power plant in our country.

从国内电力市场的发展目前状况和垃圾发电行业的非凡性出发，分析了在我国发展垃圾发电厂的优势。

Garbage power generation is one of the scientists just think of ways to solve the energy shortage in Sichuan, garbage substation has been trying to build just the beginning of garbage power plant efficiency is very high, a day can consume a large amount of municipal waste, it is per hour electricity than a medium-sized thermal power plant's generating capacity even more, its workload is particularly high.

垃圾发电是科学家们刚想到的一个解决能源短缺的方法，在四川，垃圾变电站已经开始尝试建设，刚开始时垃圾发电厂的效率就非常高，每天都可消耗大量的城市垃圾，它每小时的发电量比一个中型火电厂的发电量还要多，它的工作量特别高。

The author made a simulation model in Matlab/Simulink, and did simulation in several conditions such as no load, integrating with power grid, independently modulation of the active and reactive power and capture of the maximum wind power. The simulation results show that analysis is right and have very important guidance signification on experimental systems.

在此基础上，以Matlab/Simulink为工具，建立了系统仿真模型，进行了发电机空载运行、并网、有功、无功功率独立调节、最大风能捕获运行等工况的仿真研究，仿真结果证明理论分析正确，对系统的实验研究具有一定的理论指导意义。

With the rapid development of the electric power industry, the utilization of the continuously increased capacity of the generator units, the extraordinary large power grid, and the extra-high voltage transmission network etc., the operation and the management of power system is becoming more and more complex.

电力工业的飞速发展，单机容量的不断增加，电网规模的日益扩大，使得电力系统的运行和管理越来越复杂。

The reactive power variation of wind farm interconnected with power grid leads to voltage fluctuation of power grid.

并网风电场无功功率的波动会引起系统电压波动。

In order to reduce the inductive current and the power loss caused by the current when the power system runs naturally, this article brings forward a way to reduce the power loss through a multiple impedance to insulate the lightning shield line and ground, so that the system can run economically.

为减小系统正常运行时避雷线中出现的感应电流及其电能损耗，提出了利用复合阻抗隔离避雷线与杆塔的方法，EMTP程序对该方法数字仿真的结果证明了它的可行性和有效性，但系统序阻抗也会随之改变，故有必要调整系统保护的整定，以满足系统对保护的要求。

On the other hand, the power plant is a more complex system, so the fault types in power plant is much more. We can not find a general method to detect or diagnose all kinds of faults in the power plant.

电站又是一个复杂的大系统，发生在电站中的故障的类型是多样的，不可能有一种通用方法，实现对所有故障的诊断。

Solar power generation ; thermal power generation ; solar power tower system ; energy storage ; heliostats

太阳能发电；热力发电；塔式发电系统；储能；定日镜

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。