Three-phase four-line digital generator

A digital generator, three-phase four-wire technology, applied in the direction of magnetic circuit static parts, magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., can solve the problem of heavy weight, unstable output voltage, and output harmonics higher question

Inactive Publication Date: 2013-04-10
SHANGHAI KONG YUAN ELECTRONICS TECH CO LTD
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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

Method used

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  • Three-phase four-line digital generator
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  • Three-phase four-line digital generator

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Embodiment Construction

[0014] A three-phase four-wire digital generator, including: the engine provides power for the generator, a three-phase permanent magnet generator (including two sets of three-phase generator stator windings) or two three-phase permanent magnet generators (each three-phase The phase permanent magnet generator includes a set of three-phase generator stator windings) assembled on the output shaft of the engine and outputs two sets of three-phase medium-frequency high-voltage signals, one set of single-phase low-voltage signals and one set of low-voltage charging signals. Among them, the single-phase low-voltage signal is connected to three DC-AC converters to provide working voltage for the DC-AC converter, and two sets of three-phase intermediate-frequency high-voltage signals are respectively connected to two three-phase rectification and voltage stabilization modules to generate two DC high-voltage signals. The positive pole of one of the two DC high-voltage signals (series se...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/12
Inventor 池继富吴爱云李毅
Owner SHANGHAI KONG YUAN ELECTRONICS TECH CO LTD
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