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Method and device for controlling water cooled converter power cabinet and water cooled converter adopting same

A control method and power cabinet technology, applied in non-electric variable control, simultaneous control of multiple variables, control/regulation systems, etc., can solve the problem of high cost, reduce control costs and ensure cooling efficiency.

Active Publication Date: 2014-03-05
SUNGROW POWER SUPPLY CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of this application is to provide a control method and device for the power cabinet of a water-cooled converter and a water-cooled converter using the same, so as to solve the problem that the existing control method needs to be greatly improved and the cost is high

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  • Method and device for controlling water cooled converter power cabinet and water cooled converter adopting same
  • Method and device for controlling water cooled converter power cabinet and water cooled converter adopting same
  • Method and device for controlling water cooled converter power cabinet and water cooled converter adopting same

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Embodiment Construction

[0047]The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0048] The embodiment of the present application discloses a control method and device for a power cabinet of a water-cooled converter and a water-cooled converter using the same, in order to solve the problem that the existing control method needs to be greatly improved and the cost is high.

[0049] refer to figure 1 , the water-cooled converter power cabinet control method provided in Embodiment 1 of the present application includes the following steps:

[0050] S1. Real-time acquisition...

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Abstract

The invention discloses a method and device for controlling a water cooled converter power cabinet and a water cooled converter adopting the method and device. A heat exchanger of the water cooled converter is indirectly controlled to be started and stopped through the master control system of a wind power system, and the difference value between the temperature of the environment inside the power cabinet and the water output temperature of the water cooled converter is controlled below a preset temperature difference corresponding to current humidity. When circulating water temperature is low, the heat exchanger is not started, and therefore a condensation phenomenon caused by the too low circulating water temperature is avoided. When the circulating water temperature is too high, the heat exchanger is indirectly started through the master control system, part of heat of circulating water is discharged out, the temperature of the circulating water is reduced, and therefore cooling efficiency is guaranteed. Therefore, on the premise that the control system of a wind turbine generator does not need to be improved and a water cooling system does not need to be provided with a heating device, dehumidification and condensation preventing control over the power cabinet is achieved, and control cost is greatly lowered.

Description

technical field [0001] The present application relates to the technical field of converter control, in particular to a control method and device for a power cabinet of a water-cooled converter and a water-cooled converter using the same. Background technique [0002] At present, wind farms are developing on a large scale, covering areas including high-humidity areas such as the sea and tidal flats; and the condensation caused by humidity and humidity has brought huge losses to the electrical system of wind turbines. Therefore, it is necessary to pay special attention to its dehumidification And anti-condensation control, especially for the dehumidification and anti-condensation control of the converter, which is the key electrical component of the wind turbine. [0003] For wind turbines using water-cooled converters, the water-cooled system includes water-cooled control cabinets and heat exchangers to quickly remove the heat absorbed by circulating water; the water-cooled c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D27/02
Inventor 周俭节孟祥志屠运武汪令祥
Owner SUNGROW POWER SUPPLY CO LTD
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