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Synchronous phase angle detection device for medium-voltage frequency converter and method

A technology of synchronizing phase and detecting device, applied in the field of frequency conversion, can solve the problems of hidden danger and high voltage

Pending Publication Date: 2021-09-07
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application provides a medium-voltage frequency converter synchronous phase angle detection device and method, which solves the technical problem of potential safety hazards in phase deviation measurement due to high voltage in the related art

Method used

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  • Synchronous phase angle detection device for medium-voltage frequency converter and method

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Embodiment 1

[0027] Please refer to figure 1 , this embodiment provides a medium-voltage inverter synchronous phase angle detection device, including the main power supply, incoming power receiver 100, synchronous power supply, synchronous power receiver 200, power supply 300 and phase deviation display 400. The main power supply is connected to the incoming power receiver 100 , the synchronous power supply is connected to the synchronous power receiver 200 , and both the incoming line power receiver 100 and the synchronous power receiver 200 are connected to the phase deviation display 400 . The power supply 300 is connected to the phase deviation display 400, and the power supply 300 provides an AC220V voltage,

[0028] Wherein, the incoming power receiver 100 is used for converting the received main power electrical signal into a first electrical signal with low voltage and no phase difference, and the synchronous power receiver 200 is used for converting the received synchronous power ...

Embodiment 2

[0038] This embodiment provides a method for detecting a synchronous phase angle of a medium-voltage frequency converter, including the following:

[0039] Step S1, the incoming power receiver 100 converts the input main power electrical signal into a first electrical signal with low voltage and no phase difference, and the synchronous power receiver 200 converts the input synchronous power electrical signal into a low voltage and no phase difference the second electric signal;

[0040] Step S2, both the first electrical signal and the second electrical signal are sent to the phase deviation display 400;

[0041] Step S3, obtain the phase difference between the main power supply and the synchronous power supply according to the phase deviation display 400, and fill in the deviation angle into the related parameters of the frequency converter.

[0042] Wherein, both the incoming power receiver 100 and the synchronous power receiver 200 can use some transformers to achieve step...

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Abstract

The invention discloses a synchronous phase angle detection device for a medium-voltage frequency converter, which relates to the technical field of frequency conversion, and solves the technical problem of potential safety hazards caused by relatively high voltage in phase deviation measurement in related technologies. The device comprises a main power supply, an incoming line power supply receiver, a synchronous power supply, a synchronous power supply receiver, a power supply and a phase deviation display, wherein the main power supply is connected with the incoming line power supply receiver, and the incoming line power supply receiver is used for converting a received main power supply electric signal into a low-voltage and phase-difference-free first electric signal; the synchronous power supply is connected with the synchronous power supply receiver, the synchronous power supply receiver is used for converting a received synchronous power supply electric signal into a low-voltage and phase-difference-free second electric signal, the power supply is connected with the phase deviation display, and the incoming line power supply receiver and the synchronous power supply receiver are both connected with the phase deviation display. Use is convenient and fast, and the safety problem in the measurement process is solved.

Description

technical field [0001] The invention relates to the technical field of frequency conversion, in particular to a medium-voltage frequency converter synchronous phase angle detection device and method. Background technique [0002] During the commissioning process of the medium-voltage inverter, it is an essential part to calculate the phase deviation between the synchronous power supply and the main power supply line. During the measurement process, due to the relatively high voltage level, there are safety problems during the test. Contents of the invention [0003] The present application provides a device and method for detecting a synchronous phase angle of a medium-voltage frequency converter, which solves the technical problem of potential safety hazards in phase deviation measurement due to high voltage in the related art. [0004] The application provides a synchronous phase angle detection device for a medium-voltage frequency converter, including a main power supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R25/00
CPCG01R25/00
Inventor 董润胜田爱心李世桓王小川
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH