Group string type high-capacity energy storage box transformer substation

Abstract

The utility model relates to a string type high-capacity energy storage box transformer substation, which comprises a base, a box body, a transformer, a low-voltage cabinet, a high-voltage cabinet and an energy storage converter, the box body and the energy storage converter are arranged on the base, and the energy storage converter is arranged on one side of the box body; the box body comprises a transformer chamber, a low-voltage chamber and a high-voltage chamber, and the low-voltage chamber and the high-voltage chamber are arranged on one side of the transformer chamber; the high-voltage cabinet is arranged in the high-voltage chamber, the low-voltage cabinet is arranged in the low-voltage chamber, and the low-voltage cabinet and the high-voltage cabinet are connected with the transformer; the transformer is connected with the energy storage converter; a plurality of ventilation openings are formed in the side walls of the two ends, corresponding to the transformer chamber, of the box body, and fans are arranged at the positions, corresponding to the ventilation openings, of the inner wall of the box body; an induction module and a measurement and control instrument are arranged in the transformer chamber, the input end of the measurement and control instrument is connected with the induction module, and the measurement and control instrument is connected with the transformer. Compared with the prior art, the heat dissipation efficiency can be improved, equipment can be protected in time, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of box transformers, and in particular to a string type large-capacity energy storage box transformer. Background Art

[0002] In the existing technology, with the accelerated construction of large-scale new energy bases, in order to promote the consumption and utilization of renewable energy such as wind power and photovoltaic power, a high proportion of renewable energy will put forward higher requirements for the flexible adjustment ability of the power system, bringing new opportunities for the development of new energy distribution and storage; the state and local governments have successively issued policies to encourage the configuration of new energy storage facilities. With the development of the industry, the box-type transformers supporting new energy will also be greatly developed;

[0003] However, there are still some problems with the box-type transformer in the prior art, such as low heat dissipation efficiency at the box-type transformer corresponding to the transformer, simple equipment protection measures, and high safety hazards, so it is necessary to solve these problems. Utility Model Content

[0004] The utility model aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, one purpose of the utility model is to propose a string-type large-capacity energy storage box transformer that can improve heat dissipation efficiency, protect equipment in time, and reduce safety hazards.

[0005] The utility model solves the above technical problems with the following technical solutions: a group-type large-capacity energy storage box transformer, comprising a base, a box, a transformer, a low-voltage cabinet, a high-voltage cabinet and an energy storage converter, wherein the box and the energy storage converter are both fixedly placed on the base, and the energy storage converter is located on one side of the box; the box comprises a transformer chamber, a low-voltage chamber and a high-voltage chamber, wherein the low-voltage chamber and the high-voltage chamber are located on one side of the transformer chamber, and the low-voltage chamber is located on one side of the high-voltage chamber; the transformer is fixedly placed in the transformer chamber, the high-voltage cabinet is fixedly placed in the high-voltage chamber, the low-voltage cabinet is fixedly placed in the low-voltage chamber, and the low-voltage cabinet and the high-voltage cabinet are both connected to the transformer through a line; the transformer is connected to the energy storage converter through a line;

[0006] The box body is provided with a plurality of downwardly opening vents on both end side walls corresponding to the transformer chamber, and a fan is provided on the inner wall of the box body corresponding to each of the vents;

[0007] The transformer room is fixedly provided with an induction module and a measuring and controlling device, the input end of the measuring and controlling device is connected to the induction module through a line, and the output end of the measuring and controlling device is connected to the transformer through a line.

[0008] The beneficial effects of the utility model are: using multiple fans to dissipate heat from the transformer to improve the heat dissipation efficiency; also using the sensing module to sense the temperature and smoke at the transformer in real time. When the detected temperature and smoke exceed the set threshold, the equipment connected to the transformer is controlled to trip or alarm, which can protect the equipment in time and reduce safety hazards.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the fans on the two inner walls of the box are arranged symmetrically with respect to the transformer; and the plurality of fans are all axial flow fans.

[0011] The beneficial effects of adopting the above further solution are: multiple fans can change the wind path to improve the air volume utilization rate, enhance the air convection around the coil and the iron core, and improve the heat dissipation efficiency.

[0012] Furthermore, an auxiliary transformer is fixedly installed in the low-voltage room, and the auxiliary transformer is respectively connected to the low-voltage cabinet and the high-voltage cabinet through lines.

[0013] The beneficial effect of adopting the above further solution is: using the auxiliary transformer to meet different voltage transformation requirements and expand the application range.

[0014] Furthermore, a communication power cabinet is fixedly provided in the low-voltage chamber at an upper end corresponding to the low-voltage cabinet, and the communication power cabinet is connected to the measurement and control device through a line.

[0015] The beneficial effect of adopting the above further scheme is: using the communication power cabinet to transmit the alarm signal generated by the measurement and control device to the outside, it can promptly remind the monitoring personnel to protect the equipment, reduce safety hazards and improve safety.

[0016] Furthermore, an emergency light is fixedly mounted on the inner wall of the low-pressure chamber, and a camera is fixedly mounted on one side of the emergency light.

[0017] The beneficial effects of adopting the above further scheme are: the camera makes it easy for monitoring personnel to monitor the inside of the box and understand the operating status of each device in the box in real time; the emergency light provides emergency lighting, which makes it easy for monitoring personnel to maintain each device in the box.

[0018] Furthermore, the sensing module includes a first smoke sensor, a first temperature sensor, a second smoke sensor and a second temperature sensor, the first smoke sensor and the first temperature sensor are close to the winding of the transformer, and the second smoke sensor and the second temperature sensor are close to the iron core of the transformer.

[0019] The beneficial effect of adopting the above further scheme is that the first smoke sensor, the first temperature sensor, the second smoke sensor, the second temperature sensor and the measurement and control device operate in a coordinated manner, and the equipment is protected by tripping and alarming, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of a string-type large-capacity energy storage box transformer of the utility model;

[0021] Figure 2 This is a structural schematic diagram of a string-type large-capacity energy storage box transformer of the utility model;

[0022] Figure 3 This is a module block diagram of the sensing module and the measurement and control device of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Base;

[0025] 2. Box, 201, transformer room, 202, low voltage room, 203, high voltage room, 204, vent;

[0026] 3. Transformer, 4. Low voltage cabinet, 5. High voltage cabinet, 6. Energy storage converter, 7. Fan;

[0027] 8. Sensing module, 801. first smoke sensor, 802. first temperature sensor, 803. second smoke sensor, 804. second temperature sensor;

[0028] 9. Measurement and control device, 10. Auxiliary transformer, 11. Communication power cabinet, 12. Emergency light, 13. Camera. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figures 1 to 3As shown, a string type large-capacity energy storage box transformer includes a base 1, a box 2, a transformer 3, a low-voltage cabinet 4, a high-voltage cabinet 5 and an energy storage converter 6, wherein the box 2 and the energy storage converter 6 are both fixedly placed on the base 1, and the energy storage converter 6 is located on one side of the box 2; the box 2 includes a transformer chamber 201, a low-voltage chamber 202 and a high-voltage chamber 203, wherein the low-voltage chamber 202 and the high-voltage chamber 203 are located on one side of the transformer chamber 201, and the low-voltage chamber 202 is located on one side of the high-voltage chamber 203; the transformer 3 is fixedly placed in the transformer chamber 201, the high-voltage cabinet 5 is fixedly placed in the high-voltage chamber 203, the low-voltage cabinet 4 is fixedly placed in the low-voltage chamber 202, and the low-voltage cabinet 4 and the high-voltage cabinet 5 are both connected to the transformer 3 through a line; the transformer 3 is connected to the energy storage converter 6 through a line;

[0031] The box body 2 is provided with a plurality of downwardly opening vents 204 on both side walls corresponding to the transformer chamber 201, and a fan 7 is provided on the inner wall of the box body 2 corresponding to each of the vents 204;

[0032] The transformer chamber 201 is fixedly provided with an induction module 8 and a measuring and controlling device 9 . The input end of the measuring and controlling device 9 is connected to the induction module 8 through a line, and the output end of the measuring and controlling device 9 is connected to the transformer 3 through a line.

[0033] Energy storage inverters can be used to control the charging and discharging process of batteries, perform AC / DC conversion, and directly supply power to AC loads when there is no power grid.

[0034] When this embodiment is used, the high-voltage cabinet 5 introduces electric energy, transforms the voltage of the electric energy by using the transformer 3, and outputs low-voltage electric energy through the low-voltage cabinet 4;

[0035] Using multiple fans 7 to dissipate heat in the transformer chamber 201, the heat generated by the transformer 3 can be dissipated quickly, thereby improving the heat dissipation efficiency;

[0036] The sensing module 8 is also used to sense the temperature and smoke at the transformer 3 in real time. When the detected temperature and smoke exceed the set threshold, the equipment connected to the transformer 3 is controlled to trip or alarm, which can protect the equipment in time and reduce safety hazards.

[0037] In the above embodiment, the fans 7 on the two inner walls of the box body 2 are symmetrically arranged with respect to the transformer 3 ; and the plurality of fans 7 are all axial flow fans 7 .

[0038] In specific applications, multiple fans 7 convey airflow through their corresponding vents 204. The combined arrangement of the fans 7 can change the wind path and improve the utilization rate of the air volume. The axial flow fan 7 has a greater wind pressure and air volume, which enhances the air convection around the coil and the iron core and improves the heat dissipation efficiency.

[0039] In the above embodiment, an auxiliary transformer 10 is fixedly installed in the low-voltage chamber 202 , and the auxiliary transformer 10 is respectively connected to the low-voltage cabinet 4 and the high-voltage cabinet 5 through lines.

[0040] The auxiliary transformer 10 is used to meet different voltage transformation requirements and improve the application range.

[0041] In the above embodiment, a communication power cabinet 11 is fixedly provided in the low-voltage chamber 202 corresponding to the upper end of the low-voltage cabinet 4 , and the communication power cabinet 11 is connected to the measurement and control device 9 through a line.

[0042] When the measuring and controlling device 9 is in use, when it detects that the temperature data and smoke data sensed in real time by the sensing module 8 exceed the set threshold, the device connected to the transformer 3 is controlled to trip, or the measuring and controlling device 9 generates an alarm signal, and transmits the alarm signal to the outside through the communication power cabinet 11, which can timely remind the monitoring personnel to protect the equipment, reduce safety hazards and improve safety.

[0043] In the above embodiment, an emergency light 12 is fixedly provided on the inner wall of the low-pressure chamber 202 , and a camera 13 is fixedly provided on one side of the emergency light 12 .

[0044] The camera 13 is arranged in the low-voltage room 202 to facilitate monitoring personnel to monitor the box 2 and understand the operating status of each device in the box 2 in real time; the emergency light 12 provides emergency lighting to facilitate monitoring personnel to maintain each device in the box 2.

[0045] In the above embodiment, the sensing module 8 includes a first smoke sensor 801, a first temperature sensor 802, a second smoke sensor 803 and a second temperature sensor 804, the first smoke sensor 801 and the first temperature sensor 802 are close to the winding of the transformer 3, and the second smoke sensor 803 and the second temperature sensor 804 are close to the iron core of the transformer 3.

[0046] When the first smoke sensor 801, the first temperature sensor 802, the second smoke sensor 803 and the second temperature sensor 804 sense the area where they are located, a sensing signal is generated and transmitted to the measurement and control device 9, and the measurement and control device 9 compares the data of the sensing signal. When the data of any of the first smoke sensor 801, the first temperature sensor 802, the second smoke sensor 803 and the second temperature sensor 804 exceeds the set threshold, the measurement and control device 9 generates an alarm signal and transmits it to the communication power cabinet 11, and the communication power cabinet 11 transmits the alarm signal to the outside for alarm;

[0047] When the data of the first smoke sensor 801 and the first temperature sensor 802 exceed the set threshold at the same time, or when the data of the second smoke sensor 803 and the second temperature sensor 804 exceed the set threshold at the same time, the measurement and control device 9 controls the equipment connected to the transformer 3 to trip; the equipment can be protected in time to reduce safety hazards.

[0048] When the low-voltage PCS side trips, the high-voltage load switch is tripped after a delay of 3 seconds; the measurement and control device 9 enables the electrical quantity protection, and when a fault is detected, the main circuit breaker of the energy storage inverter is controlled to break the circuit as a backup protection for the energy storage inverter, and the fault record is uploaded to the background at the same time.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A string type large capacity energy storage box transformer, characterized by: The invention comprises a base (1), a box (2), a transformer (3), a low-voltage cabinet (4), a high-voltage cabinet (5) and an energy storage converter (6); the box (2) and the energy storage converter (6) are both fixedly placed on the base (1); the energy storage converter (6) is located on one side of the box (2); the box (2) comprises a transformer chamber (201), a low-voltage chamber (202) and a high-voltage chamber (203); the low-voltage chamber (202) and the high-voltage chamber (203) are placed in the transformer chamber (201). 1), and the low-voltage chamber (202) is located on one side of the high-voltage chamber (203); the transformer (3) is fixedly placed in the transformer chamber (201), the high-voltage cabinet (5) is fixedly placed in the high-voltage chamber (203), the low-voltage cabinet (4) is fixedly placed in the low-voltage chamber (202), and both the low-voltage cabinet (4) and the high-voltage cabinet (5) are connected to the transformer (3) through a line; the transformer (3) is connected to the energy storage converter (6) through a line; The box body (2) is provided with a plurality of ventilation openings (204) opening downward on both end side walls corresponding to the transformer chamber (201), and a fan (7) is provided on the inner wall of the box body (2) corresponding to each ventilation opening (204); An induction module (8) and a measuring and controlling device (9) are fixedly arranged in the transformer chamber (201); an input end of the measuring and controlling device (9) is connected to the induction module (8) via a line, and an output end of the measuring and controlling device (9) is connected to the transformer (3) via a line.

2. The string type large capacity energy storage box transformer according to claim 1 is characterized in that: The fans (7) on the two inner walls of the box body (2) are arranged symmetrically with respect to the transformer (3); and the plurality of fans (7) are all axial flow fans (7).

3. The string type large capacity energy storage box transformer according to claim 1 is characterized in that: An auxiliary transformer (10) is fixedly arranged in the low-voltage chamber (202), and the auxiliary transformer (10) is respectively connected to the low-voltage cabinet (4) and the high-voltage cabinet (5) through lines.

4. The string type large capacity energy storage box transformer according to claim 1 is characterized in that: A communication power cabinet (11) is fixedly arranged in the low-voltage room (202) at the upper end corresponding to the low-voltage cabinet (4), and the communication power cabinet (11) is connected to the measurement and control device (9) via a line.

5. The string type large capacity energy storage box transformer according to claim 1 is characterized in that: An emergency light (12) is fixedly arranged on the inner wall of the low-pressure chamber (202), and a camera (13) is fixedly arranged on one side of the emergency light (12).

6. The string type large capacity energy storage box transformer according to claim 1 is characterized in that: The sensing module (8) comprises a first smoke sensor (801), a first temperature sensor (802), a second smoke sensor (803) and a second temperature sensor (804); the first smoke sensor (801) and the first temperature sensor (802) are located close to the winding of the transformer (3), and the second smoke sensor (803) and the second temperature sensor (804) are located close to the iron core of the transformer (3).

Images