CN204517224U - A kind of integrated photovoltaic intelligent substation - Google Patents

Abstract

The utility model discloses an integrated photovoltaic intelligent substation in the field of electric equipment, which includes a box body which is divided into a transformer room and a control room inside. Labyrinth-type rain-proof shutters are arranged on both sides of the transformer room and on the door of the control room. There is a square hole matching the size of the transformer at the bottom of the room. The square hole is covered by a microporous stainless steel mesh. Inverters, DC cabinets, AC cabinets and control cabinets are arranged on both sides of the control room. The middle part of the control room forms an operation corridor. Both sides and the control room door are equipped with labyrinth-type rain-proof shutters. The utility model enhances the heat dissipation performance of the equipment in the box, improves the reliability and stability of the operation of each equipment in the box, and can be used in power plants.

Description

An integrated photovoltaic smart substation

technical field

The utility model relates to a substation, in particular to a mobile box-type substation.

Background technique

Photovoltaic power generation is an emerging industry, that is, photovoltaic modules are connected to the DC cabinet through the combiner box, then enter the inverter and then sent to the AC cabinet, and then sent to the grid from the high-voltage cabinet after being boosted by the step-up transformer. The current main operation scheme is distributed. That is, except for the photovoltaic modules and the combiner box, the rest of the equipment is scattered and installed in the power generation room. Due to the scattered placement, it is impossible to optimize each equipment. For example, the heat dissipation of the inverter and the DC cabinet is It seems that there are many difficulties, and the communication between cabinets and backgrounds also increases difficulties. These are the factors that hinder the realization of a high degree of intelligence. The box-type substation in the prior art has poor ventilation performance, which leads to poor heat dissipation performance.

The integrated photovoltaic smart substation combines DC cabinets, inverters, low-voltage AC cabinets, step-up transformers and high-voltage cabinets in the best and most reasonable way, and is installed in an outdoor box with excellent hot and cold air exchange. In order to further enhance air convection, the box is also equipped with an auxiliary exhaust device. And according to the heating temperature of the equipment and the ambient temperature, the automatic opening and closing of the exhaust device is realized.

Utility model content

The purpose of the utility model is to provide an integrated photovoltaic intelligent substation, which has strong ventilation and heat dissipation performance, and improves the reliability and stability of the operation of the substation.

The purpose of this utility model is achieved as follows: an integrated photovoltaic intelligent substation, including a box body divided into a transformer room and a control room inside, and a labyrinth rain-proof shutter is arranged on both sides of the transformer room and on the door of the control room , the bottom of the transformer room is provided with a square hole matching the size of the transformer, and the square hole is covered by a microporous stainless steel mesh. Inverters, DC cabinets, AC cabinets and control cabinets are arranged on both sides of the control room. An operation corridor is formed in the middle of the room, and labyrinth rain-proof shutters are arranged on both sides of the control room and on the door of the control room.

Compared with the prior art, the beneficial effect of the utility model is that the utility model enhances the air flow in the transformer room by arranging labyrinth-type rain-proof shutters on both sides and doors of the transformer room, and cooperating with the square hole arranged at the bottom of the transformer room To enhance its heat dissipation performance, install the inverter, DC cabinet, AC cabinet and control cabinet on both sides of the control room close to the labyrinth rainproof louvers to enhance the heat dissipation performance of the equipment in the control room, thereby improving the reliability of the operation of the equipment in the box sex and stability. The utility model is used in power plants.

In order to improve the thermal insulation performance of the box, the metal profiles around the inside of the box are filled with plastic-steel insulation boards, the top of the box is provided with a top frame, and the eaves of the top frame are connected with the metal profiles around the box through perforated plates. The top of the plastic-steel insulation board is closed with a heat insulation board. When the top frame is heated by sunlight, the heat in the lower part is blocked by the top heat insulation board installed below, and the heat between the top frame and the heat insulation board is then exchanged with the outside through the perforated plates around the eaves.

In order to further enhance the heat dissipation performance in the transformer room, four axial flow fans are installed in the transformer room.

In order to further enhance the heat dissipation performance in the box, eight 700×850mm labyrinth rain-proof shutters are arranged on both sides of the transformer room, and four 600×770mm labyrinth rain-proof shutters are arranged in the middle of the transformer room door. There is one 350×2400mm labyrinth rainproof shutter on the upper part, eight 600×1100mm labyrinth rainproof shutters on both sides of the control room, and four 900×500mm labyrinth rainproof shutters on both sides of the control room door Shutters, there is a 350×2400mm labyrinth rain-proof shutter on the upper part of the control room door.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is the left side view of Figure 1.

Figure 3 is the right side view of Figure 1.

Fig. 4 is the layout diagram of the utility model.

Fig. 5 is an enlarged view of A in Fig. 2 .

Among them, 1 transformer room, 1a, 1d, 1e labyrinth rain-proof shutters, 1b microporous stainless steel mesh, 1c axial flow fan, 1f transformer room door, 2 control room, 2a, 2c, 2d labyrinth rain-proof shutters, 2b control Chamber door, 3 top frames, 4 hole plates, 5 heat shields.

Detailed ways

An integrated photovoltaic smart substation as shown in Figure 1-5, includes a box body divided into a transformer room 1 and a control room 2 inside. The metal profiles around the inside of the box body are filled with plastic-steel insulation boards, and the top of the box body is provided with a roof. Frame 3, the eaves of the top frame 3 and the metal profiles around the box are connected through the orifice plate 4, the top of the plastic-steel insulation board is closed with the heat insulation board 5, and there are 8 700×850mm labyrinth rainproof panels on both sides of the transformer room 1 There are four 600×770mm labyrinth-type rain-proof shutters 1d in the middle of the transformer room door 1f, one 350×2400mm labyrinth-type rain-proof shutter 1e on the upper part of the transformer room door 1f, and a transformer room 1 bottom. Square holes with matching sizes, the square holes are covered by microporous stainless steel mesh 1b, four axial flow fans 1c are installed in the transformer room 1, inverters, DC cabinets, AC cabinets and control cabinets are arranged on both sides of the control room 2, The middle part of the control room 2 forms an operation corridor. There are eight 600×1100mm labyrinth rain-proof shutters 2a on both sides of the control room 2, four 900×500mm labyrinth rain-proof shutters 2c on both sides of the control room door 2b, and the control room door 2b The upper part is equipped with a 350×2400mm labyrinth rain shutter 2d.

In the utility model, on the side of the transformer: a square hole with the same length and width (1200×1500mm) as the transformer is opened directly below the transformer and covered with a microporous stainless steel mesh 1b, and eight 700×850mm labyrinth-type anti-corrosion holes are arranged on both sides of the transformer room 1. Rain louver shape 1a, four 600×770mm labyrinth rainproof louvers 1d on transformer room door 1f, 350×2400mm labyrinth rainproof louver 1e on the upper part of transformer room door 1f, all these ventilation devices are enough to form strong convection air , and then assisted by 4 axial flow fans 1c, the air flow in the transformer room 1 far exceeds the heat dissipation air flow required by the transformer itself. To ensure the stable and safe operation of the transformer. The four axial flow fans 1c in the transformer room 1 adopt the method of transformer oil temperature control: the running status of the fans is sent to the background in the form of RS485.

Control Room 2: 1MW inverters are divided into two groups reasonably and installed on the left and right sides. There are labyrinth-type rain-proof shutters 2a at the rear of inverters and DC cabinets with large heat generation, four labyrinth-type rain-proof shutters 2c of 900×500mm are arranged on both sides of the control room door 2b, and there are 350 mm on the upper part of the control room door 2b. × 2400mm labyrinth rain-proof shutters 2d to ensure that enough cold air flows into the control room 2. This implementation ensures that the temperature of the control room 2 is not greater than: the good working temperature of the outdoor temperature + 3 degrees Celsius. That is, it stabilizes the working state of the integrated photovoltaic substation, keeps the MPPT at an optimal value, and prolongs the service life of the equipment.

The utility model is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the utility model, those skilled in the art can make some technical features based on the disclosed technical content without creative work. Replacement and deformation, these replacements and deformations are all within the protection scope of the present utility model.

Claims (7)

1. An integrated photovoltaic intelligent substation, characterized in that it includes a box body that is divided into a transformer room and a control room inside, and labyrinth rain-proof shutters are arranged on both sides of the transformer room and on the door of the control room. A square hole matching the size of the transformer is opened at the bottom of the room, and the square hole is covered by a microporous stainless steel mesh. Inverters, DC cabinets, AC cabinets and control cabinets are arranged on both sides of the control room, and the middle part of the control room forms an operation The corridor, both sides of the control room and the door of the control room are provided with labyrinth rain-proof shutters. 2. An integrated photovoltaic smart substation according to claim 1, characterized in that, the metal profiles around the inside of the box are filled with plastic-steel insulation boards, the top of the box is provided with a top frame, and the eaves of the top frame are connected with the box The metal profiles around the body are connected through orifice plates, and the top of the plastic-steel insulation board is closed with a heat insulation board. 3. An integrated photovoltaic smart substation according to claim 1 or 2, wherein four axial flow fans are installed in the transformer room. 4. An integrated photovoltaic smart substation according to claim 1 or 2, characterized in that 8 700×850mm labyrinth rainproof shutters are arranged on both sides of the transformer room. 5. An integrated photovoltaic smart substation according to claim 1 or 2, characterized in that four 600×770mm labyrinth-type rain-proof louvers are provided in the middle of the transformer room door, and one is provided in the upper part of the transformer room door. 350×2400mm labyrinth rain shutters. 6. An integrated photovoltaic smart substation according to claim 1 or 2, characterized in that 8 600×1100mm labyrinth rainproof shutters are arranged on both sides of the control room. 7. An integrated photovoltaic smart substation according to claim 1 or 2, characterized in that, there are four 900×500mm labyrinth rainproof shutters on both sides of the control room door, and one on the upper part of the control room door 350×2400mm labyrinth rain shutters.