A method for detecting an instantaneous current in an intermediate DC link of an AC-DC-AC circuit and a locomotive. The method comprises: a current transformer synchronously collecting phase current signals Ia, Ib and Ic of three phases A, B and C at an input side of a bridge rectifier (...
aBabeFace007 BabeFace007[translate] aThe instantaneous active current p i and instantaneous reactive current q i in three-phase circuit are defined as follows 瞬间有功电流p i和瞬间易反应的潮流q i在三相电路如下被定义[translate]
A new control strategy for voltage-type PWM rectifiers to realize zero steady-state control error in input current This control method requires neither the instantaneous value of the supply voltage nor any accurate circuit parameters on the AC side of the rectifier. ......
a. AC Circuit; b. Current Waveform Ipk=EpkR =20 V10Ω =2A The waveform of this current is shown graphically in Figure 4.7b. The instantaneous voltage equation 4–1 can be used in Ohm's law to obtain an equation for instantaneous current ...
aFor example, instantaneous elements in molded case circuit breakers have a higher trip threshold on dc systems than ac systems because they are essentially peak-detecting devices. Because the published timecurrent-characteristic (TCC) is typically calibrated for ac RMS currents, the manufacturers of ...
A parallel inverter system has a plurality of AC output inverters of an instantaneous voltage control type, a bus (3) for connecting outputs of the inverters to a load (4) so as to share the load current, a detection circuit (406a) for d... Y Yushin,c/o MITSUBISHI DENKI K. K.,K...
The instantaneous value is “the value of an alternating quantity (it may ac voltage or ac current or ac power) at a particular instant of time in the cycle”. There are uncountable number of instantaneous values that exist in a cycle. ...
All voltages and currents in a circuit operating in a steady-state sinusoidal are sinusoidal waveforms with the same frequency and can be out of phase. For a generic dipole representative of a load, the instantaneous expressions of the applied voltage and the flowing current appear in Eq. (4)...
achrysomelid beetles chrysomelid甲虫 [translate] aAll circuit breakers shall have time delay thermal overload trip and instantaneous short circuit current trip. 所有开关将有时延的热量超载旅行和瞬间短路潮流旅行。 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语...
(=v0i0) involves an instantaneous real power in the zero-sequence phase circuit, and on the other hand, products vαiα and vβiβ also correspond to instantaneous powers, as they are defined by the product of an instantaneous voltage in a phase by an instantaneous current in the same ...