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Multiphase synchronous generator test circuit started in motor mode and test method

A synchronous generator and test circuit technology, applied in the direction of motor generator testing, etc., can solve problems such as difficulty in starting multi-phase synchronous generators, and achieve the effects of scientific and reasonable test data collection, small starting current, and no step loss during the starting process.

Pending Publication Date: 2020-12-18
CSIC ELECTRICAL MACHINERY SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a multi-phase synchronous generator test circuit and test method started by motor, which solves the technical problem that the multi-phase synchronous generator is difficult to start in low-frequency and low-voltage mode when conducting motor test tests

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  • Multiphase synchronous generator test circuit started in motor mode and test method

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Embodiment Construction

[0017] The present invention is described in detail below in conjunction with accompanying drawing:

[0018] A multi-phase synchronous generator test circuit started in the form of a motor, including a tested multi-phase synchronous generator 1, a first DC excitation power supply 3, a second DC excitation power supply 4, a twelve-phase synchronous generator 5, an asynchronous motor 6 and variable frequency power supply 7, the tested multi-phase synchronous generator 1 is provided with an exciter 2, and the second DC excitation power supply 4 is synchronized with the twelve-phase synchronous generator 5 through the slip ring 8 on the rotor non-drive end of the twelve-phase synchronous generator 5 The rotor windings of the generator 5 are electrically connected together, the rotating shaft of the twelve-phase synchronous generator 5 is mechanically connected together with the asynchronous motor 6 through the coupling 9, the asynchronous motor 6 is electrically connected with the ...

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Abstract

The invention discloses a multiphase synchronous generator test circuit started in a motor mode and a test method, and solves the problem that a multiphase synchronous generator is difficult to startin a low-frequency and low-voltage mode during test. The test circuit comprises a tested multi-phase synchronous generator (1), a first direct-current excitation power supply (3), a second direct-current excitation power supply (4), a twelve-phase synchronous generator (5), an asynchronous motor (6) and a variable-frequency power supply (7), the second direct-current excitation power supply (4) iselectrically connected with a rotor winding of the twelve-phase synchronous generator (5), and the asynchronous motor (6) is electrically connected with the variable-frequency power supply (7), the stator winding voltage output end of the twelve-phase synchronous generator (5) is connected with the stator winding voltage input end of the tested multi-phase synchronous generator (1), and the firstdirect-current excitation power supply (3) is electrically connected with an exciter (2) arranged on the multi-phase synchronous generator (1). The starting current is small, and the starting processis not out-of-step.

Description

technical field [0001] The invention relates to a test circuit of a multi-phase synchronous generator, in particular to a test circuit and a test method of a multi-phase synchronous generator to be started and operated in the form of a synchronous motor. Background technique [0002] After the multi-phase synchronous generator is assembled, it is necessary to test its vibration, noise, efficiency and other parameters. Many test items need to be tested. The synchronous generator is run in the state of a synchronous motor. , due to the lack of slip characteristics of asynchronous motors, it is difficult to start; the existing technology is: place the assembled multi-phase synchronous generator on the test tooling table, and use a DC excitation power supply for the multi-phase synchronous generator to be tested. The carried exciter supplies power to the stator windings of the multi-phase synchronous generator through the variable frequency power supply to form a stator magnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
CPCG01R31/34
Inventor 王斌高旻嵩
Owner CSIC ELECTRICAL MACHINERY SCI & TECH
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