Internal combustion locomotive main generator excitation control device

Abstract

The invention discloses an internal combustion locomotive main generator excitation control device comprising a power supply module, a first signal acquisition module used for acquiring voltage and current signals, a second signal acquisition module used for acquiring a frequency signal, an excitation current acquisition control module used for acquiring an excitation current signal of an internal combustion locomotive main generator and automatically adjusting the excitation current signal value of the internal combustion locomotive main generator, a switching input and output module used for detecting the current running mode of the internal combustion locomotive main generator and acquiring a corresponding switching signal, and a main control unit used for getting the current excitation control sampling data of the internal combustion locomotive main generator based on the voltage and current signals, the frequency signal and the excitation current signal and making the excitation current acquisition control module automatically adjust the excitation current signal value to achieve predetermined target excitation control data based on the current running mode and the excitation control sampling data of the internal combustion locomotive main generator. The device is of high system reliability, the signal at the output end is stable, and the fault protection function is perfect.

Description

technical field [0001] The invention relates to locomotive excitation control technology, in particular to an excitation control device for a main generator of a diesel locomotive. Background technique [0002] The main generator is the main equipment of the diesel locomotive. It is driven by the diesel engine and generates three-phase alternating current for the traction motor of the locomotive. The excitation control system is an important part of the main generator. According to the requirements of the diesel engine, the main generator and the traction motor, the excitation current of the main generator is adjusted, and the output power of the main generator is controlled to be constant. In case of failure, the main generator protection function is completed. A good excitation control mechanism is an important guarantee for the normal operation of a diesel locomotive. The performance index of the excitation system is directly related to the safe and stable operation of ...

AI Technical Summary

Problems solved by technology

Although the traditional analog excitation control system can meet the requirements of diesel locomotives, its adjustment speed is slow, the hardware structure is too complex, the reliability is reduced, and the scalability cannot meet the requirements of the current system

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