Three-phase controllable silicon phase shift trigger pulse control circuit

Abstract

The invention discloses a three-phase thyristor phase-shift trigger pulse control circuit which is in modularity design. The circuit includes a given control module (1), a startup linkage control module (2), a synchronizing adjusting module (3), a pulse shaping and control module (4) and a pulse power amplifying module (5). The three-phase thyristor phase-shift trigger pulse control circuit of the invention replaces the original old circuit to realize the purpose that the control is much safe, the point impact can be avoided at any situation, the circuit is much simple, the part is easy to purchase and the service life is much long.

Description

technical field [0001] The invention relates to a three-phase controllable circuit, in particular to a three-phase thyristor phase-shift trigger pulse control circuit. Background technique [0002] Railway track laying machines and bridge erecting machines are the main construction machinery of construction enterprises on railway lines. The driving of their carts adopts AC and DC transmission, which is quite different from the AC and DC transmission used by railway diesel locomotives in terms of control methods; The diesel locomotive achieves the purpose of controlling the output power by controlling the speed of the diesel engine, controlling the speed of the generator, controlling the output voltage, and controlling the current output to the traction motor. The AC / DC rectifier circuit of this structure only needs an ordinary three-phase diode rectifier circuit. The generator set of the railway track laying machine bridge erecting machine, in addition to providing power fo...

AI Technical Summary

Problems solved by technology

With the advancement of technology, the production of old-type integrated circuits has been discontinued, and it is difficult to purchase them in the market, even if they are purchased, the price is very high

However, the existing trigger pulse control boards for three-phase thyristor rectifier circuits on the market are relatively expensive on the one hand, and cannot be directly applied to the rectification control of track laying machines and bridge erecting machines on the other hand. Therefore, it is necessary to adopt new LSI develops a new generation of phase-shift trigger control circuit to replace the original old circuit, so as to realize the technological progress of the traveling control circuit of the laying machinery cart

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