Three-phase four-line digital generator

Abstract

The invention discloses a three-phase four-line digital generator which is especially applicable to three-phase non-balance non-linear loads. The three-phase four-line digital generator comprises an engine, one or two three-phase permanent magnetic generators, two three-phase commutating and voltage-stabilizing modules, three direct-current alternating-current converters, three LC filters and one rectifier bridges. The three-phase four-line digital generator is characterized in that the three-phase permanent magnetic generator can be composed of one stator and one rotor or two stators and two rotors. Direct-current output ends of the two three-phase commutating and voltage-stabilizing modules are connected in series, and a center line is led out. The three-phase four-line digital generator has the advantages of being especially suitable for the three-phase non-balance non-linear loads; being small in size and weight, high in efficiency and low in oil consumption; being stable in output voltage; being low in output harmonic wave and environment-friendly; being controllable in output power factor and capable of meeting requirements of different loads; being symmetrical in three-phase output for any load; and being capable of being used in multi-generator parallel-connection mode and increasing output power.

Description

technical field [0001] The invention relates to a three-phase four-wire digital generator, especially a three-phase four-wire digital generator with reasonable internal structure, light weight and high output quality, belonging to engines, generators, power electronics, automatic control, micro Electronics and other highly integrated technical fields. [0002] Background technique [0003] Traditional three-phase generators are bulky and heavy, with unstable output voltage, high output harmonics, and uncontrollable output power factor. They are usually only suitable for three-phase balanced loads, but now users have more and more requirements for the output quality of three-phase generators. High, especially when using three-phase unbalanced and non-linear loads. [0004] The present invention proposes a new structure of a three-phase four-wire digital generator, which integrates the technical fields of engines, generators, power electronics, automatic control, and microe...

AI Technical Summary

Problems solved by technology

[0003] Traditional three-phase generators are bulky and heavy, with unstable output voltage, high output harmonics, and uncontrollable output power factor. They are usually only suitable for three-phase balanced loads, but now users have more and more requirements for the output quality of three-phase generators. High, especially when using three-phase unbalanced and non-linear loads

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