These terms influence the construction of the motor (Robinson, 1968), as well as the "mean-value" or "pseudo-instantaneous" (Bland, 1967) model, which will be discussed later, due to the existence of a discontinuous current mode of operation. The proposed model (Stepahn, 1991) will be ...
Parallel operation of two 6-n prepulse uncontrolled bridge rectifiers, to obtain a 12-pulse rectification, without an interphase transformer connected on... YS Tzeng,N Chen,RN Wu - 《IEEE Transactions on Industrial Electronics》 被引量: 82发表: 1997年 Harmonic analysis of parallel-connected 12-...
Possible operation modes of a full-bridge voltage-source series resonant inverter with PFM control used in induction heating have been dealt with in the paper. The mode the inverter is operated at is determined by the ratio of the used operating frequency to the frequency of free oscillations of...
电动机的几个启动方式(Several starting modes of motor).doc,电动机的几个启动方式(Several starting modes of motor) 1 Introduction Since the invention of three-phase AC motor, it has gone through more than 100 years. During these long years, it has set u
ThyristorDespite possessing outstanding features, phase-controlled converters are also known for their control performance deterioration whenever their output currents become discontinuous. This paper aims to provide a mathematical framework to overcome converter input/output characteristic nonlinearities, arising ...
horizontalablenkschaltung with a thyristor the s capacitor The circuit includes a semiconductor switch (TR) which feeds parallel paths containing respectively winding (TR) and thyristor (TH) sections. Two protectio... R Vingtrois 被引量: 0发表: 2002年 Maintenance method for an electrical oscillati...
Valve converters with a periodic power circuit structure are valve converters based on autonomous current inverters, the structure of the power circuit of which changes according to a previously known law, depending on the operation of the power thyristor control system. At the same time, in the ...
Soft start is a good starting characteristic curve, the advantages of the thyristor conduction Angle from zero beginning, gradually moved forward, the motor terminal voltage rising from scratch, until reach the rated voltage, starting current linear rise from zero to the set value, so as to meet...
Operation of TRIAC When the applied voltage in the TRIAC is equivalent to the breakdown voltage, then the TRIAC will go into the conduction state. However, the most selected method for switching ON a TRIAC is by offering either a positive gate signal or a negative gate signal. ...
These terms influence the construction of the motor (Robinson, 1968), as well as the "mean-value" or "pseudo-instantaneous" (Bland, 1967) model, which will be discussed later, due to the existence of a discontinuous current mode of operation. The proposed model (Stepahn, 1991) will be ...