查询词典 in power

With the rapid development of modern electric power industry and the expansion ofthe power grid in China power system dynamics become more and more complex.

随着我国电力工业的快速发展，电网规模的逐步扩大，电力系统动态特性也变得越来越复杂。

We can see in Fig1 the relationship between the true power and the reactive power and power factor.

从图1中我们看到实际功率和无效功率以及功率系数之间的关系。

Power plant is important part of Electric Power Plant and plays a critical role in power generation and system stability.

发电厂是电力系统的重要组成部分，起着电能的生产和一次分配、稳定系统的重要作用。

Based on the existing problem the idea of designing multi-power induction motor was performed. The multi-power induction motor can change its output power according to the loading variation, and it can do some help for energy saving.

根据这种存在的问题，本文提出了多功率异步电机设计思想，可根据负载的变化选择合适的功率等级，节约了能源。

In the busier downtown where the power loading is much higher and needs huge power energy from power cables, it is more necessary to reduce the environmental temperature to offer more electricity.

在繁华的市区中，由於负载密集，特别需要靠电缆输送较大的电力，因此若能提供电缆最佳的散热途径，有效降低其布设环境的温度，则可提高其送电容量，以因应负载的需求。

This paper is presented in a AT89C51 microcontroller as the core to the simple power line loading dual signal recognition system design. In this system, we design the integrated power, frequency signal generator, and use of four light emitting diode as Display interface, double-button switch-mode power line load control signal.

本文就是介绍了以一种以AT89C51单片机为核心的简单两路路电力线加载信号识别系统的设计，在系统中，设计了集成电源、频率信号发生器，并运用4个发光二级管作为显示界面，采用双按键开关模式控制电力线加载信号。

When specific performance after the power switch, power supply fan, CPU fan in the switch, but the CD-ROM, hard disk does not reflect, and wait a few minutes after the power loom in order to start, everything will be all right after the start.

具体表现为当打开电源开关后，电源风扇，CPU风扇都在转，但是光驱，硬盘没有反映，等上几分钟后机子才能加电启动，启动后一切正常。

There is a Soltek motherboard (SL-65FV +) to use more than two years after the sudden bright point, expressed as a power switch, when open, the power supply fan, CPU fan in the switch, but the CDROM, the hard disk does not reflect, and wait a few minutes After the power loom in order to start, everything will be all right after the start.

有一块硕泰克主板（SL-65FV+）使用两年多后突然点不亮了，表现为当打开电源开关后，电源风扇，CPU风扇都在转，但是CDROM，硬盘没有反映，等上几分钟后机子才能加电启动，启动后一切正常。

Used to turn power management on and off, report the status of power management, and set levels of power conservation.

用来打开或关闭电脑管理，报告电脑管理的状态，和设定电源保护的级别。

The power rating of the active power filter is greatly reduced by controlling the base voltage on the active power filter.

对并联混合型滤波器中有源滤波器的基波进行控制，有效地降低了有源滤波器的容量，取得了良好的控制效果。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。