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A bypass contactor control board of a power unit

A bypass contactor and power unit technology, applied in the field of high-voltage inverters, can solve problems such as cumbersome troubleshooting of fault points

Active Publication Date: 2017-12-08
INVT POWER ELECTRONICS SUZHOU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a bypass contactor control board of a power unit to solve the cumbersome problem of troubleshooting the fault point of the bypass control circuit in the prior art

Method used

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  • A bypass contactor control board of a power unit
  • A bypass contactor control board of a power unit
  • A bypass contactor control board of a power unit

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Embodiment Construction

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0048] The present invention provides a bypass contactor control board of a power unit to solve the problem of complicated troubleshooting of the bypass control circuit in the prior art.

[0049] Specific, such as figure 1 As shown, the bypass contactor control board of the power unit is applied to a high-voltage inverter and is connected between the control system of the power unit and N bypass contactors; the bypass contactor control boar...

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Abstract

This application provides a bypass contactor control board for a power unit. Through the compiling of the compiling unit, the corresponding relay control unit controls the relay connected to the bypass contactor of the faulty power unit, thereby making the bypass contactor of the faulty power unit The bypass is performed by the road contactor; and the delivery of the bypass control signal is fed back through the signal delivery feedback unit, and the pickup of the bypass contactor is fed back through the contactor pull-in feedback unit. If the bypass fails, The corresponding fault points can be quickly and effectively checked, and the problem of cumbersome troubleshooting of the fault points of the bypass control circuit in the prior art is solved.

Description

Technical field [0001] The invention relates to the technical field of high-voltage frequency converters, in particular to a bypass contactor control board of a power unit. Background technique [0002] At present, in the application of high-voltage inverters, in order to improve the operating reliability of the entire system, the power unit bypass technology is generally used without stopping when a single power unit fails. [0003] The power unit bypass technology is specifically: when a certain power unit fails, the control system judges that the status signal of the power unit is a fault signal, and then the control system outputs the bypass control signal of the power unit, which is controlled by the bypass The circuit controls the bypass contactor of the power unit to perform bypass, so that the high-voltage inverter continues to run. [0004] However, in the prior art solution, the control system sends the bypass control signal, but the bypass fails; in the case of the bypass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/32
Inventor 田其金唐益宏张振华张广志
Owner INVT POWER ELECTRONICS SUZHOU CO LTD
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