励磁电流和电枢电流,field current and armature current
1)field current and armature current励磁电流和电枢电流
1.Satisfy the demands of the high efficiency of electric vehicles (EVs), the stator-doubly-fed doubly salient (SDFDS) motor for EVs can run with high efficiency in the whole velocity range by the coordinate control offield current and armature current.通过励磁电流和电枢电流的协调控制,可以使电动车用定子双馈电双凸极电机在整个调速范围内运行在较高率区,以满足电动车的高效率要求。
2)excitation current励磁电流
1.Influence of DC magnetic bias onexcitation current of transformer;直流偏磁对换流变压器励磁电流的影响
2.In synchronous motor power factor ahead of the work, it must be properly regulated motorexcitation current compensation can give full play to their ability, according to the author of the text of the theory and practical experience on the right conditioning methods, which have a certain learn.同步电动机可以在超前的功率因数下工作,但必须正确地调节电动机的励磁电流才能充分发挥其补偿能力,该文笔者根据理论和实践经验,介绍了正确的调节方法,具有一定借鉴意义。
3.This paper discussed the relationship among overload capability,excitation current and power in the process of the synchronizing of the asynchronous motor.异步电动机同步化后,电机所带负荷比较大时,会产生失步现象,根据异步电动机的负荷情况,从理论和实验分析同步运行时所需的励磁电流与功率的关系表达式。
英文短句/例句
1.exciter field breaker励磁电流断路器;励磁机励磁电流断路器;磁场电流断路器
2.Field Current Calculation of Synchronous Generators Taking into Account the Magnetic Saturation考虑磁饱和影响的同步发电机励磁电流计算
3.The Influence of the Cross Section Area of DC Electromagnetic Yoke Iron Core on Magnetic Flux and Exciting Current直流电磁轭铁心截面积对励磁电流和磁通的影响
4.Generator design considerations determine the field current, field voltage, and consequently, the power required for excitation.发电机的设计要求决定了励磁电流、励磁电压,从而也决定了励磁所需的功率。
5.Exciter Field Current Amplifier Based on H Bridge Topology Circuit基于H桥拓扑结构的励磁电流放大器
6.A Study on the Excitation Control System For AC Excited Generator交流励磁发电机励磁控制系统的研究
7.Study and Simulation on Excitation System for AC Excited Generator;交流励磁发电机励磁系统研究与仿真
8.Under excited reactive ampere limit (URAL).欠励磁无功电流限制(URAL)。
9.Design of New Transducer for AC Excitation Electromagnetic Flow Meter;交流励磁电磁流量计新型转换器设计
10.Study on Control Strategies of AC Excited Generator and Its Excitation Power Supply;交流励磁发电机及其励磁电源的控制策略研究
11.Study and Design of Excitation Power Supply of A.C.Excited Generator;交流励磁发电机励磁电源的研究与设计
12.Simulation study of exciter of AC excitation generator based on Saber基于Saber的交流励磁发电机励磁电源仿真研究
13.Design of Excitation System for ACEG Excited by the Dual PWM Converter;双PWM变换器励磁的交流励磁发电机励磁系统设计
14.Simulation and Study on AC-AC Excitation System for AC Excited Generator;交流励磁发电机交—交励磁系统仿真研究
15.Research and Design of Electromagnetic Flowmeter Excited by Trapezoidal Wave;梯形波励磁电磁流量计的研究与设计
16.Within our countrys power system, synchronous generator excitation system primarily consists in direct current exciter system and semiconductor exciter system.在我国电力系统中,同步发电机的励磁系统主要有直流励磁机励磁系统和半导体励磁系统两种。
17.Characteristics analysis of fault current and inrush based on EMD故障电流与励磁涌流的EMD特性分析
18.The function of the excitation system is to provide direct current for the generator rotor windings, or field windings.励磁系统的功能是向发电机转子绕组,即励磁绕组提供直流电流。
相关短句/例句
excitation current励磁电流
1.Influence of DC magnetic bias onexcitation current of transformer;直流偏磁对换流变压器励磁电流的影响
2.In synchronous motor power factor ahead of the work, it must be properly regulated motorexcitation current compensation can give full play to their ability, according to the author of the text of the theory and practical experience on the right conditioning methods, which have a certain learn.同步电动机可以在超前的功率因数下工作,但必须正确地调节电动机的励磁电流才能充分发挥其补偿能力,该文笔者根据理论和实践经验,介绍了正确的调节方法,具有一定借鉴意义。
3.This paper discussed the relationship among overload capability,excitation current and power in the process of the synchronizing of the asynchronous motor.异步电动机同步化后,电机所带负荷比较大时,会产生失步现象,根据异步电动机的负荷情况,从理论和实验分析同步运行时所需的励磁电流与功率的关系表达式。
3)Exciting current励磁电流
1.Experimental studies and calculations of the exciting current in the transformer under DC bias magnetization;直流偏磁下变压器励磁电流的实验研究及计算
2.The main task of control system of eddy current dynamometer is rotational speed controlled and torque retarded with the adjustments of throttling location and exciting current,which is important to the combustion engine experimental measurement technique.电涡流测功机控制系统的主要任务是通过调节内燃机油门位置和测功器励磁电流以控制转速和制动力矩,是决定内燃机台架试验技术水平的重要方面。
3.From research,It is known that the flux of single-phase transformer would offset and exciting current of single-phase transformer would be distorted under DC current inrushing.直流电流通过两个Y0连接的变压器中性点侵入电力系统,故针对三相三柱变压器直流入侵情况建立了直流入侵下的三相三柱变压器的电路模型和相应的方程,结合三柱磁路的麦克斯韦方程和非线性的B—H曲线方程,利用数字迭代法,在MATLAB环境下编程计算了三相三柱变压器直流入侵下的变压器励磁电流和谐波特征。
4)field current励磁电流
1.The output of PWM(pulse width modulation)was automatically adjusted by TL494 to control thefield current of the generator,which accomplished stabilizing output v.通过TL494自动调节PWM输出控制励磁电流,达到稳定发电机输出电压、输出电流和限流充电的目的。
2.The 80c196 single-chip computer adjusts the output of PWM(pulse width modulation) to control thefield current of the generat.通过调整PWM输出来控制发电机的励磁电流,达到稳定发电机的输出电压、输出电流和限流充电的目的。
3.The generator power swing is analyzed from several aspects:the relationship between ge-nerator active power and reactive power,the influence of active power increase on generator opera-ting status and the influence offield current regulation on active and reactive powers.通过对发电机有功功率和无功功率关系、增加发电机有功功率对发电机运行状态的影响、励磁电流的调节对有功功率和无功功率影响等方面的分析入手,结合所录取的数据,分析1号机组发生功率波动的原因,得出励磁超调会造成机组功率的波动。
5)magnetizing current励磁电流
1.The Research on the Bias of Magnetizing Current in Active-clamp forward Converter;有源箝位正激变换器中励磁电流直流偏置问题的研究
6)AC exciter with armature rotating旋转电枢式交流励磁机
延伸阅读
交流励磁机旋转整流器励磁交流励磁机旋转整流器励磁excitation with AC exciter and rotating rectifier1300 MW的透平发电机上.中国曾在6 MW和25MW透平发电机上进行过这种励磁方式的试验研究，1976年开始在100 MW透平发电机上予以采用.近年来中国生产的300 MW和600 MW透平发电机也采用无刷励磁。为了解决旋转不可控整流励磁方式存在的励磁反应速度慢及不能在发电机励磁回路内实现灭磁的困难，可以采用图2所示的旋转可控整流励磁方式。旋转可控整流器的控制由控制励磁机引人，也可由旋转变压器或光电辆合方式输人。但由于控制系统较为复杂，目前仅用于中、小型透平发电机。大型透平发电机旋转可控整流励磁正在进行试验研究，是一种很有发展前途的励磁方式.┌─┐│津│└─┘图2交流励磁机旋转可控整流励磁原理图l一发电机;2一发电机励磁绕组;3一电流互感界.4一电压互感器;5一自动电压调节器;6一旋转的可控整流器;7一交流励磁机;8一交流励磁机励磁绕组;9一控制励磁机;10、11一控制助磁机直轴、 交轴励磁绕组;12一脉冲整形电路J旧。{一u I.e一J}xuonzhuon Zhenglluql llC{交流励磁机旋转整流器励磁(exeitation withAC exeiter and rotating reetifier)同步发电机的励磁电流由交流励磁机经旋转整流器供给的励磁方式，简称旋转整流器励磁。按整流器是否可控又可分为旋转不可控整流励磁和旋转可控整流励磁。图1中交流励磁机为旋转电枢型结构，电枢电流经装在同一轴上的旋转整流环整流后直接引到主机的转子励磁绕组，不需要电刷和集电环，故通常称为无刷励磁。其控制方式与静止不可控整流励磁方式相同，因此无刷励磁方式除具有与后者相同的特点外，还具有下列特点:①由于无电刷、集电环，励磁电流从理论上来说可达很大值，不受集电环极限容量的限制，也不必考虑电刷电流的分配和腐蚀，维护工作量大为减少，最大励磁功率已达5300kw，②发电机励磁回路内不能装设灭磁电阻、灭磁开关等设备，所以，不能直接灭磁，只能采用对励磁机的励磁绕组进行灭磁的方法，故灭磁速度慢;③整流器及其相应的保护元件(快速熔断器、电阻、电容等)都处于高速旋转状态，故要求它们能承受相当大的离心力;④励磁系统旋转部分的参数(励磁电压、电流、温度、绝缘电阻等)的测量和监视箱用无线电发送或用辅助滑环引出。随轴转动的快速熔断器的监视也比较麻烦。这种励磁方式虽然因交流励磁机时间常数较大，使励磁系统反应速度较慢，但只要在励磁系统内增加适当的反馈控制并提高励磁机的顶值电压，仍可获得时间常数小和高起始响应的特性，较大地改善动态性能。广-‘花凉益压一-二二二二-，图1交流励磁机旋转不可控整流励磁原理图 1一发电机，2一发电机励滋绕组;3一电流感器;4一电 压互感器;5一自动电压调节器;6一可控整流器;7一整 流器;8一交流励磁机，9一交流副励磁机门O一交流励 滋机励滋绕组这种励磁方式多用于大容量的透平发电机，中、小容t的透平发电机也有采用。现这种励磁方式已用于
