• One of the key factors of affecting power factor of rectifiers is control technique.

    控制技术影响整流器功率因数关键因素之一

    danci.911cha.org

  • High power factor at ac input can be achieved by controlling the switch of capacitor charge circuit.

    通过电容器充电回路开关进行控制实现交流输入端的功率因数

    dict.cnki.net

  • This thesis describes the main characters and development of power factor correction (PFC) technology. Its investigative necessity and importance are clarified.

    本文介绍功率因数校正(PFC)技术发展及其主要特点阐明了研究必要性重要性

    www.fabiao.net

  • The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too.

    不同容量负载以及负载不同功率因数同步发电机励磁磁场作用不同同步发电机内部阻抗作用也是不一样

    www.fabiao.net

  • Grid voltage in accordance with corporate standards and requirements for power factor to determine the motor's voltage rating and type.

    根据企业电网电压标准功率因数要求确定电动机电压等级类型

    danci.911cha.com

  • According to this relationship, vector control system with energy-saving based on constant power factor was formed.

    通过关系,设计了基于功率因数节能型异步电动机矢量控制系统

    www.dictall.com

  • The harmonic problems, such as distorting supply voltage, decreasing power factor, increasing energy loss, interfering with communication systems etc. are discussed in the part one.

    一部分讨论各种谐波问题使供电电压畸变降低功率因数增加能量损耗干扰通讯系统

    dict.cnki.net

  • How to consider harmonic suppression and power factor compensation comprehensively?

    谐波治理功率因素补偿如何综合考虑

    www.gongkong.com

  • The basic purpose of a shunt capacitor bank is to increase the local circuit voltage and or reprove the load power factor carried by the circuit.

    并联电容器基本目的提高当地线路电压提高引线路所带负荷功率因数

    www.websaru.net

  • It is easy to use, reliable, inexpensive, solid structure, but the lower power factor, speed is also more difficult.

    使用方便运行可靠价格低廉结构牢固功率因数较低调速困难

    www.youboy.com

  • Apply150% rated load at rated power factor and measure the time required for the inverter protective devices to operate.

    额定功率因素上施加150%额定负荷测量逆变保护装置启动所需时间

    www.websaru.net

  • Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.

    晶闸管调速系统一种廉价、简易的调速系统但是传统系统存在着诸如功率因数谐波污染严重弊端

    dict.cnki.net

  • High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.

    稀土永磁同步电动机具有效率功率因数特点一种高效节能产品

    danci.911cha.org

  • It is pointed out that the power factor requirement for users is too low and should be raised.

    文中认为,目前对电力用户功率因数要求偏低建议提高

    dict.cnki.net

  • The DRM has been used for justification of increasing core power factor in Daya Bay NPS18-month fuel cycle project.

    方法大亚湾核电站18个月换料项目提高功率因子分析论证应用

    epub.cnki.net

  • dict.cnki.net

  • The simulation result shows that the DSP controller has very fast dynamic response and unity power factor, flexible control and simplified hardware design.

    仿真结果表明DSP控制器可以获得较高的功率因数,且具有快速的电路动态响应灵活控制方法以及简洁硬件设计等特点。

    dict.cnki.net

  • It can obtain the improve of power factor of the input motor power, and can lighten its capacity.

    实现电机输入电源功率因数改善减轻容量

    b2b.mainone.com

  • This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device.

    本文论述了可控硅逆变逆变影响调速装置功率因数基本原理

    dict.cnki.net

  • Operating principle of power factor compensating device for 8k electric locomotive is briefly described as well as its parameter selection, switching on and off control.

    本文概述8K机车功率因数补偿装置工作原理参数选择投切控制

    dict.cnki.net

  • Power Factor is an important economic indicator in transmission and distribution power system.

    功率因数输配电系统一项重要经济指标

    danci.911cha.org

  • The paper introduces the technique feature and the operation principle of chip CS5460A, and its application in high-accuracy power frequency voltage, current, power, power factor, frequency meter.

    本文介绍CS5460 A芯片特点工作原理及其高精度电压电流功率功率因数频率中的应用

    dict.cnki.net

  • The saving energy control system is proposed for problem of oil drawing machine electric driver which efficiency and power factor is low.

    针对抽油机驱动装置效率功率因数低、耗能严重问题,研制了一台新型的抽油机节能控制系统

    dict.cnki.net

  • Then the capacitance is put in or taken out to compensate, so as to improve the power factor, and reach the aim of energy—saving.

    这时电容予以补偿改善功率因数达到节能目的

    dict.cnki.net

  • It can achieve unity power factor and low current distortion.

    可以实现单位功率因数电流畸变

    danci.911cha.com

  • As the heart of the power factor correction circuit, the gain modulator gets a high power factor by controlling the input current.

    增益调制器作为功率因数校正电路核心电路通过控制输入电流来得到一个功率因数

    epub.cnki.net

  • This pattern is not only influenced the competitiveness of the Chinese iron ore, is unable to get negotiations in the bargaining power factor.

    这种格局不仅影响企业自身竞争力也是中方铁矿石谈判无法获得议价重要因素

    www.51wufengguan.cn

  • The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.

    单位功率因数整流器利用瞬时比较法控制电源电流,不但控制简单有效限制器件最高开关频率

    dict.cnki.net

  • The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.

    单位功率因数整流器利用瞬时比较法控制电源电流,不但控制简单有效限制器件最高开关频率

    dict.cnki.net

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