CN206517279U - A kind of power compensating device for wind-power electricity generation - Google Patents

Abstract

The utility model discloses a kind of power compensating device for wind-power electricity generation, the power model cabinet of interior is installed on including more than one, multiple power models are mounted in each power model cabinet, cooling fan component is equipped with each power model cabinet, for the hot gas in pumping power module cabinet with to power model progress cooling, it is equipped with each power model cabinet for forming the air duct board of heat dissipation wind channel in order to the radiating of cooling fan component pumping power module, each cooling fan component is connected by exhaust-air switching device with outdoor, interior is discharged into so that indoor heating for backflow after making the hot blast discharge outdoor/of cooling fan component suction or changing.The utility model have the advantages that good heat dissipation effect and can will radiating sirocco reclamation enter indoor formation interior circulation, it is energy-conserving and environment-protective, safe and reliable, economical and practical.

Description

A power compensation device for wind power generation

technical field

The utility model mainly relates to the field of wind power equipment, in particular to a power compensation device for wind power generation.

Background technique

With the country's emphasis on energy conservation and environmental protection, the new energy industry has developed rapidly. As an important new energy industry, wind power has developed rapidly with the strong support of the state. Compared with traditional thermal power generation, wind power generation has the advantages of environmental protection, low cost, and renewable advantages, but the power factor is low and the power quality is not as good as traditional thermal power. In order to meet the requirements of grid connection, the State Grid generally requires wind farms to be equipped with power compensation devices to improve the power factor.

The power module (IGBT module) is the core component of the power compensation device. The IGBT module has certain requirements on the working environment. If the working environment is too high or too low, it will affect its normal operation. In the design and development of power compensation devices, the ventilation and heat dissipation scheme is an important part. A commonly used heat dissipation solution is to place the power compensation device in the power distribution room, and the wall of the power distribution room is provided with an air inlet. Under the action of the cooling fan, the outdoor air passes through the air inlet of the power distribution room and the air inlet of the power compensation device, and is exhausted from the air outlet to take away the heat generated by the loss of the power module. Generally, it can achieve good ventilation and heat dissipation.

However, currently in China, power compensation devices generally only consider ventilation and heat dissipation under normal weather conditions, and do not consider low temperature failures under extreme weather. However, the northern region of our country is rich in wind resources, and a large number of wind farms have been built in the northeast region. The power compensation device can normally dissipate heat. Low-temperature air enters the cooling air duct of the equipment, making the operating temperature of the IGBT module too low, and the equipment frequently reports low-temperature faults. In this case, it is necessary to add heating equipment indoors to increase the indoor temperature to ensure the normal operation of the equipment. On the one hand, the warm air at the outlet of the cooling system is directly discharged to the outside. On the other hand, the air at the inlet of the cooling system needs to be heated, resulting in energy waste. At the same time, high-power heating equipment is added indoors, which increases safety hazards. The invention recovers the warm air at the outlet of the cooling air duct through the warm air return device, and forms an internal recycling in the room, which can ensure the normal operation of the equipment without additional heating equipment, and has the advantages of energy saving, environmental protection, safety, reliability, economy and practicality.

Utility model content

The technical problem to be solved by the utility model is: aiming at the problems existing in the prior art, the utility model provides a utility model which has a good heat dissipation effect and can recycle the heat dissipation hot air into the room to form an internal circulation, which is energy-saving, environmentally friendly, safe, reliable, economical and practical. Power compensation device for wind power generation.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A power compensation device for wind power generation, comprising more than one power module cabinet installed indoors, each of the power module cabinets is equipped with a plurality of power modules, and each of the power module cabinets is equipped with a cooling fan The component is used to suck the hot air in the power module cabinet to cool down and dissipate the power module. Each of the power module cabinets is equipped with an air duct plate for forming a heat dissipation air duct to facilitate the cooling fan assembly to suck the power module. To dissipate heat, each of the cooling fan assemblies communicates with the outside through an exhaust conversion device, so that the hot air sucked by the cooling fan assembly is discharged outside/or converted back into the room to heat up the room.

As a further improvement of the utility model, the exhaust conversion device includes an exhaust duct, the front port of the exhaust duct is used to communicate with the heat dissipation fan assembly, and the rear port of the exhaust duct extends outside to The hot air is discharged outdoors, and more than one hot air return opening is provided on the indoor section of the exhaust duct, and each hot air return opening is provided with an openable and closable return door. When the return door is closed, the exhaust duct The hot air inside is exhausted to the outside through the rear port, and when the return door is opened, the hot air in the exhaust duct is discharged back into the room through the hot air return port to achieve indoor temperature rise.

As a further improvement of the utility model, the hot air return ports are all opened on the bottom surface of the exhaust duct, one side of the return door is hinged with the exhaust duct, and a first fixing member is provided on the return door for closing stay fixed.

As a further improvement of the utility model, an openable and closable airtight door is provided at the rear port of the exhaust duct, and when the backflow door is opened, the airtight door closes the rear port to realize hot air backflow.

As a further improvement of the utility model, one side of the airtight door is hinged to the exhaust duct, and a second fixing member is provided on the airtight door to keep it fixed when closed.

As a further improvement of the utility model, the air duct plate is vertically set up in the power module cabinet to separate the power module cabinet into a front installation chamber and a rear cooling air duct, and multiple power modules are installed in the front installation chamber Indoors, the air duct plate is provided with a plurality of heat dissipation holes corresponding to the power modules one by one, so that the heat dissipation of all power modules is discharged into the rear heat dissipation air duct, and the heat dissipation fan assembly is connected with the rear heat dissipation air duct Connected for centralized suction and heat dissipation.

As a further improvement of the utility model, a plurality of ventilation holes corresponding to the power modules are opened on the front door of the power module cabinet so that air enters the cabinet to cool down and dissipate heat from the power modules.

Compared with the prior art, the utility model has the advantages of:

(1) The power compensation device for wind power generation of this utility model is specially designed with an exhaust conversion device, which can not only realize heat dissipation, but also recover the heat dissipation hot air, and form an internal recycling indoors, reducing the high temperature failure of the equipment and The low temperature failure rate prolongs the service life of the equipment.

(2) The power compensation device for wind power generation of the present utility model can ensure the normal operation of the equipment in extreme weather without adding additional heating equipment, reduces potential safety hazards, saves equipment costs, and is energy-saving, environmentally friendly, safe, reliable, and economical. Practical advantages.

(3) The power compensation device for wind power generation of the present utility model not only designs the exhaust conversion device, but also further designs the air channel plate forming the cooling air channel, which can cooperate with the cooling fan assembly to form hot air with excellent effect. The suction effect not only ensures a good heat dissipation effect, but also ensures an excellent effect of reflow and heating.

Description of drawings

Fig. 1 is a front view schematic diagram of the structure and principle of the power compensation device of the present invention when it is in use.

Fig. 2 is a schematic diagram of the side view structure of the power compensation device of the present invention when it exhausts air to the outside.

Fig. 3 is a schematic diagram of the side view structure when the power compensation device of the present invention exhausts air indoors.

Fig. 4 is a schematic diagram of the side view structure of the exhaust air conversion device of the present invention.

Fig. 5 is a schematic diagram of a cross-sectional structure of the power module cabinet of the present invention.

illustration:

1. Power module cabinet; 11. Front installation chamber; 12. Rear cooling air duct; 13. Ventilation hole; 2. Power module; 3. Cooling fan assembly; 5. Air duct plate; 6. Exhaust conversion device; 61. Exhaust duct; 62. Hot air return port; 63. Return door; 631. First fixing part; 64. Sealing door; 641. Second fixing part.

detailed description

Below in conjunction with specific embodiment and accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 to 5, the utility model provides a power compensation device for wind power generation, which includes more than one power module cabinet 1 installed indoors, and each power module cabinet 1 is equipped with multiple power modules 2. Each power module cabinet 1 is equipped with a heat dissipation fan assembly 3, which is used to suck the hot air in the power module cabinet 1 to cool down and dissipate the power module 2. Each power module cabinet 1 is equipped with a heat dissipation The air duct plate 5 of the air duct is used to facilitate the heat dissipation of the heat dissipation fan assembly 3 to suck the power module 2, and each heat dissipation fan assembly 3 is communicated with the outdoor through the exhaust air conversion device 6 for the hot air sucked by the heat dissipation fan assembly 3 Exhaust to the outside and/or converted return flow to the interior to warm the interior. The implementation principle is as follows: when the temperature is normal (no extreme cold weather), the heat dissipation fan assembly 3 can discharge the sucked hot air outside in time through the exhaust conversion device 6, so as to achieve excellent cooling and heat dissipation for the power module 2 (as shown in picture 2). When encountering extremely cold weather, the hot air sucked by the heat dissipation fan assembly 3 can be discharged back into the room through the exhaust air conversion device 6 to increase the indoor temperature, and finally the power module 2, which is a high-power component loss, can be promptly eliminated. The heat is dissipated to prevent the junction temperature from being too high, and it can also prevent low temperature failure of devices caused by cold air sucked in from the outside into the power module cabinet 1 (as shown in FIG. 3 ). Through the above special scientific design, it has the following advantages:

One is the power compensation device of the present utility model. The exhaust air conversion device 6 is specially designed, which can not only realize heat dissipation, but also can recover the heat dissipation hot air, and form an internal circulation in the room, which reduces the occurrence rate of high temperature failure and low temperature failure of the equipment. The service life of the equipment is extended.

The second is that the utility model can ensure the normal operation of the equipment in extreme weather without adding additional heating equipment, reduces potential safety hazards, saves equipment costs, and has the advantages of energy saving, environmental protection, safety, reliability, economy and practicality.

The third is that the utility model not only designs the exhaust conversion device 6, but also further designs the air duct plate 5 forming the heat dissipation air duct, which can cooperate with the heat dissipation fan assembly 3 to form an excellent hot air suction effect, that is, to ensure heat dissipation. The effect is good, and the effect of reflux and heating is guaranteed to be excellent.

As shown in Figures 2 to 4, further, in a preferred embodiment, the exhaust conversion device 6 includes an exhaust duct 61, the front port of the exhaust duct 61 is used to communicate with the cooling fan assembly 3, and the exhaust duct 61 The rear port protrudes outside to discharge the hot air to the outside. The indoor section of the exhaust duct 61 is provided with more than one hot air return port 62, and each hot air return port 62 is provided with an openable and closed return door 63. When the backflow door 63 is closed, the hot blast in the exhaust duct 61 is discharged outdoors through the rear port, and when the backflow door 63 is opened, the hot blast in the exhaust duct 61 is discharged into the room through the hot blast return port 62 to realize indoor heating. In this embodiment, the hot air return ports 62 are all set on the bottom surface of the exhaust duct 61, one side of the return door 63 is hinged with the exhaust duct 61, and the return door 63 is provided with a first fixing member 631 for holding when closed. Fixed, making the operation simple and fast, and the implementation effect is good.

As shown in Figures 2 to 4, further, in a preferred embodiment, an openable and closable airtight door 64 is provided at the rear port of the exhaust duct 61, and when the backflow door 63 is opened, the airtight door 64 closes the rear port to cooperate Realize hot air return. Through the above settings, when encountering extreme weather, due to the closure of the rear port, the hot air in the exhaust duct 61 can only flow back into the room from the hot air return port 62 to the maximum extent, so as to achieve the best indoor temperature rise . In this embodiment, one side of the airtight door 64 is hinged to the exhaust duct 61, and the second fixing member 641 is provided on the airtight door 64 to keep it fixed when closed, so that the operation is simple and fast, and the implementation effect is good.

As shown in Figures 2 to 5, further, in a preferred embodiment, the air duct plate 5 is vertically set up in the power module cabinet 1 to separate the power module cabinet 1 into a front installation chamber 11 and a rear cooling air duct 12 , a plurality of power modules 2 are installed in the front installation chamber 11, and a plurality of cooling holes corresponding to the power modules 2 are opened on the air duct plate 5 to allow the heat dissipation of all the power modules 2 to be discharged in a concentrated manner. In the rear cooling air duct 12, the cooling fan assembly 3 communicates with the rear cooling air duct 12 for centralized suction and heat dissipation. The front door panel of the power module cabinet 1 is provided with a plurality of ventilation holes 13 corresponding to the power modules 2 so as to allow air to enter the cabinet to cool down the power module 2 and dissipate heat. Through the above configuration, not only the heat dissipation of multiple power modules 2 is concentrated, but also the suction of the heat dissipation fan assembly 3 is also concentrated, which not only further ensures an excellent heat dissipation effect, but also further ensures an excellent reflow heating effect.

The above are only preferred implementations of the utility model, and the scope of protection of the utility model is not limited to the above-mentioned embodiments, and all technical solutions under the thinking of the utility model all belong to the scope of protection of the utility model. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims (7)

1. A power compensation device for wind power generation, comprising more than one power module cabinet (1) installed indoors, each power module cabinet (1) is equipped with a plurality of power modules (2), each Each of the power module cabinets (1) is equipped with a heat dissipation fan assembly (3), which is used to suck the hot air in the power module cabinet (1) to cool down and dissipate the power module (2). It is characterized in that each The power module cabinet (1) is equipped with an air duct plate (5) for forming a heat dissipation air duct so that the heat dissipation fan assembly (3) can suck heat from the power module (2), and each of the heat dissipation fan assemblies ( 3) All communicate with the outside through the exhaust conversion device (6), so that the hot air sucked by the heat dissipation fan assembly (3) is discharged outside/or converted and returned to the room to heat up the room. 2. The power compensation device for wind power generation according to claim 1, characterized in that the exhaust air conversion device (6) comprises an exhaust air duct (61), and the front port of the exhaust air duct (61) Used to communicate with the heat dissipation fan assembly (3), the rear port of the exhaust duct (61) protrudes outside to discharge the hot air to the outside, and the indoor section of the exhaust duct (61) is provided with more than one Hot air return ports (62), each of the hot air return ports (62) is provided with an openable and closable return door (63), when the return door (63) is closed, the hot air in the exhaust duct (61) The hot air in the exhaust duct (61) is discharged into the room through the hot air return port (62) when the return door (63) is opened to realize indoor temperature rise. 3. The power compensation device for wind power generation according to claim 2, characterized in that, the hot air return ports (62) are set on the bottom surface of the exhaust duct (61), and the return door (63) One side of the door is hinged with the exhaust duct (61), and the return door (63) is provided with a first fixing member (631) for keeping it fixed when it is closed. 4. The power compensation device for wind power generation according to claim 2, characterized in that an openable and closable airtight door (64) is provided at the rear port of the exhaust duct (61), and the return door ( 63) When opened, the airtight door (64) closes the rear port to cooperate to realize the return flow of hot air. 5. The power compensation device for wind power generation according to claim 4, characterized in that one side of the airtight door (64) is hinged to the exhaust duct (61), and the airtight door (64) is provided with There is a second fixing (641) for keeping it fixed when closed. 6. The power compensation device for wind power generation according to any one of claims 1 to 5, characterized in that, the air duct plate (5) is vertically set up in the power module cabinet (1) to transfer the power The module cabinet (1) is divided into a front installation chamber (11) and a rear cooling air duct (12), and multiple power modules (2) are installed in the front installation chamber (11), and the air duct plate ( 5) There are a plurality of cooling holes corresponding to the power modules (2) one by one, so that the heat dissipation of all the power modules (2) can be collectively discharged into the rear cooling air duct (12), and the cooling fan assembly (3) It communicates with the rear cooling air duct (12) for centralized suction and cooling. 7. The power compensation device for wind power generation according to claim 6, characterized in that a plurality of ventilation holes corresponding to the power modules (2) are opened on the front door panel of the power module cabinet (1) ( 13) To allow air to enter the cabinet to cool down and dissipate the power module (2).