WO2012024892A1

WO2012024892A1 - Wind turbine generator system for high temperature environments

Info

Publication number: WO2012024892A1
Application number: PCT/CN2011/001370
Authority: WO
Inventors: 陈湘泉
Original assignee: 广东明阳风电产业集团有限公司
Priority date: 2010-08-22
Filing date: 2011-08-18
Publication date: 2012-03-01
Also published as: CN101956666A

Abstract

A wind turbine generator system for high temperature environments comprising a tower (1), main machinery (2) installed at the top of the tower, and a rotor (3) connected to the main machinery. An inverter (4) and a tower base control cabinet (7) are internally arranged at the bottom of the tower. A speed-increasing gearbox (5) connected to the rotor is arranged at the front end of the main machinery, and an electric generator (6) is connected to the output shaft of the speed-increasing gearbox. A nacelle control cabinet (8) is arranged in the middle portion of the main machinery, and an axial flow fan (9) capable of extracting heat from the inside of the main machinery is arranged in the tail portion of the same. The wind turbine generator system is a large-scale generator system, especially applicable in super-high temperature environments. The wind turbine generator system can generate electricity normally at temperatures ranging from -30°C to +50°C.

Description

Instructions Wind turbines for high temperature environments

[Technical Field]

The present invention relates to a wind turbine for use in a high temperature environment, and more particularly to a large wind turbine for use in an ultra high temperature environment.

【Background technique】

The large-scale wind turbine set referred to in the present invention refers to a single wind turbine with a rated power of 1 MW or more. The large-scale wind turbine generators are huge, and are often installed in areas with remote locations and harsh environments. Among the available wind resource areas, some are very hot and ultra-high temperature areas. The maximum temperature in summer may reach 50 °C. The conventional large-scale wind turbine design allows the upper limit of the ambient temperature of the fan to be 40 °C. When the outdoor temperature exceeds this limit, the internal heat of the host may not be properly distributed, resulting in poor operation of the host and failure of the device. Therefore, conventional large wind turbines are no longer suitable for use in areas where the ambient temperature exceeds 40 °C.

[Summary of the Invention]

The present invention overcomes the deficiencies of the prior art and provides a wind turbine that can normally generate electricity in the range of -30 Ό - +50 。.

In order to solve the above technical problems, the present invention adopts the following technical solutions - 1. Internal design of the fan:

(1). Redesign the heat dissipation system of the generator, the speed increasing gear box and the frequency converter to increase the heat dissipation capacity of the radiator, so that the outdoor air temperature can still take away the confirmation of these parts under 5CTC. Heat, and the temperature of these components is still within the allowable range:

(2) The control cabinet and tower base of the wind turbine are equipped with an air conditioning system to keep the internal temperature of the control cabinet and the tower base below +4 CTC;

(3). The large-flow axial flow fan is used to take the heat from the engine room out of the engine room by the exhaust fan system of the axial fan.

2. Control aspects:

Modify the control parameters to make the fan start power generation normally below +5CTC.

[Description of the Drawings]

Figure 1 is a perspective view of the present invention.

Figure 2 is a structural view of the host of the present invention.

Figure 3 is a perspective view of the heat dissipation system of the generator of the present invention.

Figure 4 is a perspective view of the heat dissipation system of the speed increasing gear of the present invention.

【detailed description】

As shown in FIG. 1 , a wind power generator for a high temperature environment is composed of a tower 1 and a main machine 2 mounted on the top of the tower 1 and an impeller 3 connected to the main unit 2, and a frequency conversion is provided inside the lower end of the tower 1. The unit 4 and the tower base control cabinet 7.

As shown in FIG. 2, a speed increasing gear box 5 connected to the impeller 3 is provided at the front end of the main body 2, a generator 6 is connected to the output shaft of the speed increasing gear box 5, and a nacelle control is provided in the middle of the main machine 2. The cabinet 8 is provided with an axial fan 9 for withdrawing heat therein.

As shown in FIG. 1, a frequency converter 4 is disposed inside the lower end of the tower 1, and a heat dissipation system 41 is disposed in the frequency converter 4. As shown in FIG. 2, the front end of the earthmoving machine 2 is provided with the impeller 3. The speed increasing gear box 5 is provided with a speed increasing gear box cooling system, and the speed increasing gear box 5 is lost. A generator 6 is connected to the output shaft, and a generator heat dissipation system is provided on the generator 6. The above heat dissipation system adopts a thin structure and amplifies the heat sink to increase the flow rate and increase the heat dissipation capacity of the heat sink, so that the outdoor air temperature can still take away the heat of these components at 5 CTC, and the temperature of these components is still at Within the allowable range.

As shown in Fig. 2, the axial flow fan 9 is a large flow axial flow fan, so that the heat in the engine room can be taken out of the engine room by the exhaust system of the axial flow fan. Both the tower control cabinet 7 and the cabin control cabinet 8 are equipped with an air conditioning system that maintains the internal temperature of the tower control cabinet 7 and the cabin control cabinet 8 below +40 °C.

In terms of control, the control parameters of the inverter 4 can be modified to enable the fan to start power generation normally below +50Ό.

Claims

A wind turbine for a high temperature environment, comprising a tower (1) and a main unit (2) mounted on the top of the tower (1) and an impeller (3) connected to the main unit (2), in the tower The lower end of (1) is equipped with a frequency converter (4) and a tower base control cabinet (7). At the front end of the main unit (2), there is a speed increasing gear box (5) connected to the impeller (3). A generator (6) is connected to the output shaft of the gear box (5), and is characterized in that a nacelle control cabinet (8) is arranged in the middle of the main unit (2), and an axial flow fan for extracting heat therein is provided at the tail portion. (9).

A wind power generator for a high temperature environment according to claim 1, characterized in that a speed increasing gear heat dissipation system (51) is provided on the speed increasing gear box (5). A wind power generator according to claim 1, characterized in that a generator heat dissipation system (61) is provided on said generator (6).

A wind power generator for a high temperature environment according to claim 1, characterized in that a frequency converter heat dissipation system (41) is provided in said frequency converter (4).

A wind power generator for a high temperature environment according to claim 1, characterized in that the tower base control cabinet (7) and the cabin control cabinet (8) are each provided with an air conditioning system.