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Control method and device of auxiliary motor of wind turbine generator

A technology for assisting electric motors and wind turbines, which is applied to wind engines, machines/engines, engines, etc., can solve the problem of high energy consumption, and achieve the same effect of reducing energy consumption, cost reduction, and energy saving

Inactive Publication Date: 2019-04-23
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, regardless of the power of the current wind turbines, the auxiliary motors used for heat dissipation work in the same state, and the energy consumption is relatively high.

Method used

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  • Control method and device of auxiliary motor of wind turbine generator
  • Control method and device of auxiliary motor of wind turbine generator
  • Control method and device of auxiliary motor of wind turbine generator

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 As shown, the control method of the wind turbine auxiliary motor in this embodiment includes the steps:

[0027] S01. Obtain real-time temperature information of each sub-part of the heating component when the wind turbine is running;

[0028] S02. When the obtained single temperature value or the logical combination of multiple temperature values ​​is not greater than the preset threshold T1, the auxiliary motor is in a stopped state;

[0029] S02. When the obtained single temperature value or the logical combination of multiple temperature values ​​increases to the preset threshold T1-T2, the auxiliary motor is in a low-speed state;

[0030] S03. When the obtained single temperature value or the logical combination of multiple temperature values ​​increases to a value greater than the preset threshold T3, the auxilia...

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Abstract

The invention discloses a control method of an auxiliary motor of a wind turbine generator. The control method comprises the following steps of S01: obtaining the temperature of each subdivision of aheating component; S02: when the temperature is not greater than T1, stopping an electric motor; S03: when the temperature rises to T1-T2, enabling the electric motor to run at a low speed; S04: whenthe temperature rises to be greater than a pre-set threshold T3, enabling the electric motor to be at a high speed; S05: when the temperature drops to (T3- delta 2), enabling the speed of the electricmotor to be switched from the high speed to the low speed; and S06: when the temperature drops to (T2- delta 1), enabling the electric motor to switch to a stopping state, wherein the delta 1 and thedelta 2 are predetermined return difference values. The invention also discloses a control device. The control device comprises a control unit and a temperature measuring unit, wherein the temperature measuring unit is used for detecting real-time temperature information of each subdivision of the heating component, and transmitting the real-time temperature information to the control unit; and the control unit is used for controlling the rotational speed of an auxiliary motor according to a real-time temperature signal. The control method and the control device disclosed by the invention have the advantages of reducing energy consumption and the like.

Description

technical field [0001] The invention mainly relates to the technical field of wind power generation, in particular to a control method and device for an auxiliary motor of a wind turbine. Background technique [0002] Auxiliary motors are installed in the wind turbine, such as the motor used to drive the cooling fan, the oil pump motor used to drive the lubricating oil circulation of the gearbox, etc. At the same time, the control system and detection sensors are also configured in the wind turbine, and the control system obtains information such as the temperature of each unit of the wind turbine through the sensor. [0003] The main heat-generating components of wind turbines include generators, gearboxes (there is no such component in direct-drive units), converters, etc. The heat generation of these components is related to the operating power of the unit. The power generated by wind turbines is large, and the heat generated by these components is large. When the temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/60F03D80/70
CPCF03D80/60F03D80/70Y02E10/72
Inventor 赵燕峰万宇宾高首聪卢勇胡婵娟李旺成刘璐翟大勇唐益文
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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