Generator excitation circuit detection method

Abstract

The invention relates to a generator excitation circuit detection method. A excitation circuit comprises a power generator, a power controller and a storage battery, wherein an exciting winding of the power generator and a field flashing resistor, a rectifier bridge and a field-effect tube in the power controller form the excitation circuit; and the state of the excitation circuit of the power generator is judged according to the voltage value at the D+ point of the circuit. The generator excitation circuit detection method provided by the invention overcomes the deficiencies of the existing power generation system of automobiles that the excitation state of the power generator can be judged in a static condition through the following steps of removing all the cables connected with the power generator, and directly measuring a socket of the power generator manually by using a universal meter, and judging whether the excitation circuit is in a good condition or a poor condition. The generator excitation circuit detection method enlarges the detection range, realizes automatic detection, can judge the power generation state of the power generator more conveniently and reliably, combines with the single-chip microcomputer technology and the bus communication technology, and transmits the collected information of the excitation circuit and the power generation state to an upper computer so as to realize remote state monitoring and failure diagnosis of the power generation system.

Description

Technical field: [0001] The invention relates to a generator control method, in particular to a generator excitation circuit detection method. Background technique: [0002] The key to the normal operation of the generator lies in the excitation circuit of the generator. In the existing vehicle power generation system, the judgment of the excitation state of the generator can only be done after all the cables connected to the generator are released under static conditions, and the socket is manually measured directly by a multimeter to judge whether the excitation circuit is good or not, and the power generation The installation position of the generator on the vehicle is often very unfavorable for this kind of manual inspection; and when the generator is connected to the dynamic work of the power generation system, it is impossible to judge the state of the generator excitation circuit by manual measurement. If a fault occurs, it is very unfavorable for fault location. ...

AI Technical Summary

Problems solved by technology

In the existing vehicle power generation system, the judgment of the excitation state of the generator can only be done after all the cables connected to the generator are released under static conditions, and the socket is manually measured directly by a multimeter to judge whether the excitation circuit is good or not, and the power generation The installation position of the generator on the vehicle is often very unfavorable for this kind of manual inspection; and when the generator is connected to the dynamic work of the power generation system, it is impossible to judge the state of the generator excitation circuit by manual measurement. A fault occurs, which is very unfavorable for fault location

[0003] In the traditional vehicle power generation system, whether the generator generates electricity can only be judged by manually measuring the output voltage of the generator.

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