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Composite cooling system

A technology of composite cooling and coolant, applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve problems such as application limitations, and achieve uniform flow, ensure heat dissipation, and ensure uniformity.

Active Publication Date: 2017-09-22
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Traditional wind turbines mostly use air-cooling technology, air-water cooling technology and air-water-air cooling technology, but their application to large-capacity drive motors is limited
Especially for domestic drive motors that are larger than 6MW for the tested machine, how to realize the large-scale wind turbine drive motor cooling system occupies a smaller space in the laboratory, provides sufficient cooling load, and ensures the reliable operation of the tested end. And have lower energy consumption, become a problem that needs to be solved

Method used

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Embodiment Construction

[0034] Since the traction motor is located on the ground, different from the cooling technology of the wind turbine, the design of the cooling system of the tractor does not need to consider a series of problems faced by the tested wind turbine after it goes to the sky. The cooling of the traction motor It will not be constrained by the environment faced by the wind turbines in the actual wind farm. Therefore, it is reasonable to apply the composite cooling technology which is easy to control and has higher efficiency to realize the cooling of the drag motor.

[0035] Cooling the drag motor itself usually uses an air-liquid heat exchange system. For the air-liquid heat exchange system, the air circulates through the drive motor to cool the internal parts of the drive motor, and then the hot air is converted into cold air through the air-liquid heat exchanger, while the coolant is in the air-liquid heat exchange The temperature in the container rises due to the heat exchange w...

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Abstract

The invention provides a composite cooling system. The composite cooling system is used for cooling a motor and comprises an air-liquid heat exchanger, a pipeline, a pump set unit, at least one cooling unit, a control unit and a valve, wherein the air-liquid heat exchanger is arranged on the motor, the pipeline comprises a cooling liquid and forms a cooling loop, the pump set unit drives the cooling liquid to pass through the at least one cooling unit, the valve unit is arranged on the pipeline so as to control switching access of the at least one cooling unit under the control of the control unit, and the control unit is used for controlling access running of the at least one cooling unit according to an ambient temperature, adjusting the opening of the valve and enabling the cooling liquid to pass through the running cooling unit.

Description

technical field [0001] The present invention relates to a cooling system, more specifically, to a compound cooling system for cooling a motor, especially to a compound cooling system for a drag motor of a large direct-drive wind power generator. Background technique [0002] With the gradual reduction of fossil energy reserves, the global energy crisis is looming. The energy structure dominated by fossil energy is unsustainable, and wind energy is attracting attention as a green energy. [0003] With the increasing development of wind energy, it has become a development trend in the field of wind power generation to continuously increase the single-unit capacity of wind power generators. Wind turbines are often located in remote and unattended areas, which puts forward higher requirements for the stability, reliability and maintenance-free of wind turbines. Before the wind turbine is put into the sky, it is necessary to verify the reliability and stability of the design of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/19H02K9/10
CPCH02K9/10H02K9/19
Inventor 王丁会夏静李锦辉
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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