Voltage lowering starting type generator regulator

Abstract

The present invention discloses a voltage dropping start generator regulator which comprises a rectification circuit, a voltage-stabilizing wave filter circuit, a setting potential circuit, a pressure sampling circuit, a setting pressure comparison circuit, a exciter current control circuit, a excitation source rectifying wave filter circuit and a exciter current regulating circuit, characterized in that the input end of the exciter current sampling circuit connects with the output end of the exciter current regulating circuit; the output end of the exciter current sampling circuit connects to the input end of a voltage dropping delay control circuit; the output end of the voltage dropping delay control circuit connects with the first input end of the setting pressure comparison circuit. The present invention is provided with simple circuit and reliable detection, can decrease startup current surge to the electricity generator by the dynamic load, make generator operation stable, drop down pressure when starts up, decrease current surge, effectively prevent the electricity generator from overloading, avoid engine from phenomenon like shutdown or rotate speed descend because of overload, and can be extensively applied on automatic excitation control of generator rotors.

Description

technical field [0001] The invention relates to a voltage regulator for a generator, in particular to a voltage regulator for a generator whose voltage-reducing starting load is a motor. Background technique [0002] At present, the known generator excitation voltage regulators are all set fixed voltage output, such as 220V / 50Hz, 380V / 50Hz, and the output voltage is controlled by adjusting the excitation current of the generator rotor. , especially when electric loads such as motors and blowers are connected, the starting current will be greater than the rated current output by the generator, which will cause insufficient output power of the engine, decrease in speed, and even cause power shutdown. In view of this situation, usually when we configure a generator for electric loads, we will choose 3 times the power margin. For example, for a 650W fan, we must choose at least a 2kw generator to ensure that it can start normally. In this way, after starting normally, it will c...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing generator start-up power load is easy to be dragged down and power is wasted, the technical problem to be solved by the present invention is to provide a step-down start-up generator voltage regulator

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