module method to control the three-phase asynchronous motor speed the following kinds: 1, regulating speed regulation is the bidirectional thyristor module, is bidirectional thyristor module in series to the stator circuit, bidirectional thyristor module to adjust to the voltage on the motor's speed.
This kind of control method of mechanical properties is soft.
2, cascade speed regulation, it is the bidirectional thyristor module in the rotor circuit of the motor, using the motor slip energy feedback grid how to realize speed regulation, this method is only applicable to wound rotor asynchronous motor speed control.
Is 3, frequency control of motor speed, it is the bidirectional thyristor module of frequency conversion circuit, it also has to pay & ndash;
Frequency conversion and hand in the orthogonal frequency division, but because of the bidirectional thyristor is half controlled device, frequency conversion control circuit is more complicated.
And new power electronics all control devices in recent years, which adopts double closed loop pressure regulating speed control system of the three-phase asynchronous motor, three-phase thyristor ac voltage regulator and three-phase wound rotor asynchronous motor (
Rotor circuit of series resistance)
Control part by a given integral circuit, current regulator (
, speed regulator (
, TH103 thyristor trigger integrated circuit, current transducer (
, speed converter (
, the trigger (
, pulse power amplifier, etc, purchasing bidirectional thyristor welcome to visit website.
Two-way if interested in our two-way thyristor module or there is doubt, welcome your consultation.
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