Asynchronous sampling scheme for active power measurement;
有功功率测量的异步采样方法
Soft stop control of high-voltage asynchronous motor based on active power close loop;
基于有功功率闭环的高压异步电机软停控制
Under the high harmonics condition,after sampling the voltage and current signals,the real power,reactive power and other electrical parameters can be accurately and real-timely measured by directly implementing phase-shifting netwo.
在高次谐波存在的环境下,对电压、电流信号采样后,直接通过移相网络和简单的数值计算即可实时并精确地测量出无功功率、有功功率等电气参量。
Balance among real power, reactive power and voltage of the unified power flow controller (UPFC) system is analyzed.
文中分析了统一潮流控制器(UPFC)系统的电压、无功功率和有功功率的平衡,得到了与 UPFC控制相关的2个重要结论。
This paper analyzes the reasons which cause the surges, and presents a method of dual closed loop control of real power and current.
分析了线性斜坡降压软停控制产生振荡的原因 ,提出一种有功功率加电流双闭环控制的方法 ,较好地解决了泵系统软停问题。
In AC circuit,the ratio of effective power and Volt power is called power ratio(the cosine of voltage and current).
在交流电路中,把电源所供给的有功功率与电源的视在功率之比称为功率因数即cosφ(电压电流相位差的余弦)。
Based on the physics meaning of reactive power, this text introduces an exact method of calculating to calculate active power and reactive power, and some wrong concepts existingin calculatingreactive power.
本文从无功的物理意义出发,提出一种精确计算有功和无功的计算方法。
First, this paper lists formula of active power by analyzing the composing of instantaneous power, then discusses the effect of prefilter to electric energy metering, how to measure electric energy in transient condition, and the influence of load type to the conversion of electric energy.
本文首先分析了瞬时功率的构成,得到有功功率的公式,接着探讨了前置滤波器对电能计量的影响、暂态情况下的电能计量问题和用户类型对电能转换的影响,最后对有功计费提出了一些建议。
The measurement method of reactive power in traction substation,which main transformer is impedance-matching balance one,is discussed.
通过理论计算和数字仿真 ,分析了在牵引变电所低压侧用有功表计量无功的误差 ,得到了计量结果较实际值偏大的结论 ,对于牵引变电所无功计量方式的设计和运行有一定的指导作用。
The power factor (pf) is the ratio of average power to apparent power.
功率因数是有功功率与视在功率之比。
automatic distributor of active power
有功功率自动分配装置
Power Factor Power factor is the cosine of the angle between the actie power( kW) and apparent power( kA) in a circuit.
功率因数功率因数是电路中有功功率(W)视在功率(A)间夹角的余弦值。
Study of the Experimental Circuit for the Generator Active Power and Reactive Power Adjustment and Control;
发电机有功功率与无功功率调整、控制实验电路的研究与实践
Study on the regulation of active power for three-phase synchronous generator
三相同步发电机有功功率调节的研究
Power Factor Power factor is the cosine of the angle between the active power( kW) and apparent power( kVA) in a circuit.
功率因数功率因数是电路中有功功率(W)视在功率(VA)间夹角的余弦值。
arbitray phase angle power relay
有功无功功率继电器
arbitrary phase-angle power relay
有功-无功功率继电器
Study motivation has inspiriting function, directional function and intensifying function.
学习动机具有激励功能、向功能、化功能。
A New Method on Optimal Real-Time Pricing of Active and Reactive Powers
有功与无功功率最优实时定价新方法
Sometimes succeeding and sometimes not.
碰巧的有时成功或有时不成功的
Neither he nor I have free time.
他没有闲功夫，我也没有闲功夫。
A STUDY OF ACTIVE AND REACTIVE POWER CONTROL FOR BRUSHLESS DOUBLY-FED MACHINE
无刷双馈电机有功和无功功率控制研究
The simulation object list indicates that the active reactive power compensation can carry on the compensation of reactive power very well.
仿真结果表明，有源无功功率补偿器能很好地进行无功功率的补偿。
effective output
有效输出量有效功率
To be successful, the integration needs to be meaningful.
想要获得成功，整合的功能必须有意义。
Everyone shared in making the picnic a success.
这次野餐获得成功，人人都有功劳。
Is there any reactive power error control in AVR?
自动调压器有无功功率误差控制吗？