CN112103830A - Medium/high voltage centralized control prefabricated cabin for energy storage power station - Google Patents

Abstract

The invention discloses a medium/high voltage centralized control prefabricated cabin for an energy storage power station, which comprises a container box and is formed by splicing a switch room and a centralized control room. An emergency access door is arranged between the switch room and the centralized control room, and the switch room is provided with an emergency access door. The primary equipment group is used to receive and transmit electric energy during the charging and discharging process of the energy storage power station; the centralized control room is equipped with a secondary equipment group, an energy management system of the energy storage power station and a fire alarm system, and the secondary equipment group monitors and controls the primary equipment. Protection, the energy management of the energy storage power station in the centralized control room is connected to the highest level battery management system and bidirectional inverter of the energy storage power station. The energy management system of the energy storage power station is responsible for managing the charging and discharging process of the energy storage power station, boosting and inversion process, and fire alarm. The system manages the fire protection, communication and monitoring of the whole station. This product is suitable for large-capacity energy storage power stations, substations and energy storage power stations that are far away. The operator can control the energy storage power station on the spot in the cabin, which is convenient for the operation, maintenance and management of the power station.

Description

A medium/high voltage centralized control prefabricated cabin for energy storage power station

technical field

The invention relates to the technical field of energy storage, in particular to a medium/high voltage centralized control prefabricated cabin for an energy storage power station.

Background technique

With the increasing shortage of traditional energy sources such as oil and coal in the world, it is of great significance for countries around the world to vigorously develop and utilize new energy sources such as solar energy and wind energy. It came into being against this background.

Energy storage power stations can use the peak-valley price difference to save electricity costs for users, provide services such as peak regulation, frequency regulation, and demand response support for grid operation, and can also be used as emergency backup power sources. Among them, the containerized energy storage system, the battery compartment box is generally designed according to 20 feet, 40 feet and other standard boxes, and the medium/high voltage control room is generally affected by the scale of the power station, site and user or power system access requirements, etc. For non-standard containers, when the system access voltage level is increased or the scale of the power station is increased, the design of the medium/high voltage control cabin needs to be greatly modified, and it lacks versatility.

SUMMARY OF THE INVENTION

In order to solve the shortcomings of the above technologies, the present invention provides a medium/high voltage centralized control prefabricated cabin for an energy storage power station.

In order to solve the above technical problems, the technical solution adopted in the present invention is: a medium/high voltage centralized control prefabricated cabin for an energy storage power station, which includes a container box, and the container box is formed by splicing a switch room and a centralized control room in the width direction , There is an emergency access door between the switch room and the centralized control room, and there is a primary equipment group in the switch room. The primary equipment group includes outgoing cabinets, measuring cabinets, PT cabinets, incoming cabinets, station transformers, outgoing cabinets, measuring cabinets, PT cabinets The incoming cabinet and the station transformer are connected in sequence through the busbar, the outgoing cabinet is connected to the low-voltage side busbar of the nearby substation, the incoming cabinet is connected to the power supply side through the cable, and the primary equipment group is used for receiving and transmitting during the charging and discharging process of the energy storage station Electric energy; the centralized control room is equipped with secondary equipment group, energy management system of energy storage power station and fire alarm system. The secondary equipment group in the centralized control room includes AC power supply cabinet, AC feeder cabinet, safety automation cabinet, telecontrol communication cabinet, security protection Screen cabinet, DC power cabinet, battery cabinet, backup cabinet 1, backup cabinet 2, operation console, simulation screen, secondary equipment group to measure, control and protect primary equipment. The energy management system of the energy storage power station in the centralized control room includes the energy management system Cabinet, energy management system cabinet is connected with the highest level battery management system and bidirectional inverter of the energy storage power station. The energy management system of the energy storage power station is responsible for managing the charging and discharging, boosting and inversion process of the energy storage power station, and the fire alarm system is responsible for the fire protection of the whole station. , communication, monitoring management.

Further, the AC power supply cabinet and the AC feeder cabinet are placed adjacent to each other, and the AC power supply cabinet is provided with an ATS dual power automatic switching device.

Further, the safety automation cabinet is provided with a public monitoring and control device, a frequency and voltage emergency control device, a power quality online monitoring device, and an interactive terminal of an energy storage power station; the power quality online monitoring device is connected to the outlet cabinet in the switch room to measure the AC current and voltage loop; The frequency and voltage emergency control device is connected to the outlet cabinet in the switch room to protect the AC current and voltage circuit.

Further, the telecontrol communication cabinet is connected to the public monitoring and control device through cables and network cables, and the telecontrol communication cabinet is connected to the remote dispatch center through optical fibers.

Further, the security screen cabinet is provided with a digital network hard disk video recorder, a hard disk, a display, and a core switch.

Further, the DC power supply cabinet and the storage battery cabinet are placed adjacent to each other, and the DC power supply cabinet is provided with a power switching device.

Further, both the switch room and the centralized control room are provided with integral container air conditioners, and the cabin roofs of the switch room and the centralized control room are provided with smoke detectors, temperature sensors, and network dome cameras.

Further, the surface of the container body is provided with an anti-corrosion coating, and the surrounding side walls and the top wall of the container body are provided with a sandwich panel rock wool insulation layer.

Further, the fire alarm system is provided with a fire fighting host, an input/output module and a short-circuit isolator, the input/output module is connected with the fire fighting host, and the short-circuit isolator is installed at the intersection of the main line and the branch line of the fire alarm system.

The invention discloses a medium/high voltage centralized control prefabricated cabin for an energy storage power station. The centralized control prefabricated cabin can be used for energy storage power stations connected to voltage levels of 10kV and 35kV, and is also suitable for large-capacity energy storage power stations, substations and storage power stations. The power station is far away, etc. The operator can control the energy storage power station on the spot in the cabin, which is convenient for the operation, maintenance and management of the power station.

Description of drawings

Figure 1 is a schematic diagram of the structure of the present invention.

FIG. 2 is a left side view of FIG. 1 .

In the figure: 1. Packing box; 2. Switch room; 3. Central control room; 4. Emergency access door; 5. Measuring cabinet; 6. PT cabinet; 7. Line entry cabinet; 8. Station transformer; 9. AC power cabinet; 10. AC feeder cabinet; 11. Safety automation cabinet; 12. Telecontrol communication cabinet; 13. Security screen cabinet; 14. DC power cabinet; 15. Battery cabinet; 16. Backup cabinet 1; 17. Backup cabinet 2; 18, console; 19, simulation screen; 20, fire alarm system; 21, energy management system cabinet; 22, outlet cabinet; 23, escape door; 24, shutters.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, the medium/high voltage centralized control prefabricated cabin for the energy storage power station includes a container box 1. The container box 1 is formed by splicing a switch room 2 and a centralized control room 3 in the width direction. The switch room 2 and the centralized control room 3 are relatively independent and there is an emergency access door 4 between them. The switch room 2 is provided with a primary equipment group. The primary equipment group includes the outlet cabinet 22, the metering cabinet 5, the PT cabinet 6, the inlet cabinet 7, and the station. Transformer 8, metering cabinet 5 adopts fuse handcart type, equipped with a calibrated electric energy meter, outlet cabinet 22, metering cabinet 5, PT cabinet 6, incoming cabinet 7, and station transformer 8 are connected in sequence through the bus bar, and the outgoing wires are connected in turn. The cabinet 22 is connected to the low-voltage side busbar of the nearby substation, and the incoming cabinet 7 is connected to the power supply side through cables. The primary equipment group is used to receive and transmit electric energy during the charging and discharging process of the energy storage station; the central control room 3 is equipped with a secondary equipment group. , energy management system of energy storage power station and fire alarm system 20, secondary equipment group in centralized control room 3 includes AC power supply cabinet 9, AC feeder cabinet 10, safety automation cabinet 11, telecontrol communication cabinet 12, security screen cabinet 13, DC Power supply cabinet 14, battery cabinet 15, backup cabinet 1 16, backup cabinet 2 17, operation console 18, simulation screen 19, the secondary equipment group monitors, controls and protects the primary equipment. The energy management system of the energy storage power station in the centralized control room 3 includes: Energy management system cabinet 21. Energy management system cabinet 21 is connected to the highest-level battery management system and bidirectional inverter of the energy storage power station. The energy management system of the energy storage power station is responsible for managing the charging and discharging of the energy storage power station, boosting and inversion processes, and fire alarms. The system 20 manages the fire protection, communication and monitoring of the whole station.

The AC power supply cabinet 9 and the AC feeder cabinet 10 are placed adjacent to each other. The AC power supply cabinet 9 is provided with an ATS dual power automatic switching device, and also has the function of fire shunt tripping.

The safety automation cabinet 11 is provided with a public monitoring and control device, a frequency and voltage emergency control device, a power quality online monitoring device, and an interactive terminal of an energy storage power station; the power quality online monitoring device is connected to the outlet cabinet 22 in the switch room 2 to measure the alternating current and voltage loops The frequency and voltage emergency control device is connected to the outlet cabinet 22 in the switch room 2 to protect the AC current and voltage circuit; the public measurement and control device is connected to the analog screen 19, and the public measurement and control device is simultaneously connected with the metering cabinet 5, PT cabinet 6, outlet cabinet 22 , The terminal connection of the handcart test position and the working position of the station transformer 8 plays the role of input and control of the acquisition of analog quantity and switch quantity.

The telecontrol communication cabinet 12 is connected to the public monitoring and control device through cables and network cables, and the telecontrol communication cabinet 12 is connected to the remote dispatch center through optical fibers. The telecontrol communication cabinet 12 is provided with a clock synchronization device, a communication management device, a switch, and a protocol converter, which can be time-synchronized at a fixed point, and exchange data with the intelligent equipment through protocol conversion, so as to realize telemetry and remote communication with the background system and dispatch center. Sending and receiving of signals.

The security screen cabinet 13 is rack-mounted, and the security screen cabinet 13 is provided with a digital network hard disk video recorder, a hard disk, a display, and a core switch. The video data collected by the cameras outside the cabin and in each cabin of the whole station is transmitted through the switch through the network cable and collected to the core switch in the security screen. Encoding is performed to generate an image, the image is stored in the hard disk, and the image is finally viewed through the display of the security screen cabinet 13, which plays a role in video surveillance for the entire station.

The DC power supply cabinet 14 and the storage battery cabinet 15 are placed adjacent to each other, and the DC power supply cabinet 14 is provided with a power switching device. The two power sources are drawn from the AC power supply cabinet 9, and the DC power supply cabinet 14 has multiple outlets, which mainly provide power for the switch cabinet opening and closing energy storage, monitoring background, fire alarm system 20, video security, and safety automatic cabinet.

The switch room 2 and the centralized control room 3 are both equipped with integral container air conditioners, and the cabin roofs of the switch room 2 and the centralized control room 3 are equipped with smoke detectors, temperature sensors and network dome cameras.

The surface of the container body 1 is provided with an anti-corrosion coating, and the surrounding side walls and the top wall of the container body 1 are provided with a sandwich panel rock wool insulation layer. The surface of the container body 1 of the medium/high voltage centralized control prefabricated cabin for the energy storage power station is treated with anti-corrosion treatment, and is coated with zinc-rich primer, epoxy paint, and acrylic top paint respectively. The thickness of the anti-corrosion layer is not less than 120um. Asphalt paint, sandwich panel rock wool insulation layer except for the bottom of container box 1, and galvanized sheet for the floor; multi-section beam structure at the bottom of container box 1, and channel steel for the beam to enhance the load-bearing capacity of the box; escape door A push rod lock is installed, the door is a lock rod structure, an aluminum alloy shutter 24 is installed on the upper part of the escape door 23, and dust-proof cotton is added inside.

The fire alarm system 20 is provided with a fire fighting host, an input/output module, and a short-circuit isolator. The input/output module is connected to the fire fighting host. The short-circuit isolator is installed at the intersection of the main line and the branch line of the fire alarm system 20, and is mainly used for protection. Fire control host.

This centralized control prefabricated cabin can be used for energy storage power stations connected to 10kV and 35kV voltage levels, and also suitable for large-capacity energy storage power stations, substations and energy storage power stations that are far away from each other. The operator can control the energy storage power station on the spot in the cabin, which is convenient for the operation, maintenance and management of the power station.

The above-mentioned embodiments are not intended to limit the present invention, and the present invention is not limited to the above-mentioned examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the technical solutions of the present invention also belong to the present invention. The scope of protection of the invention.

Claims (9)

1. A medium/high voltage centralized control prefabricated cabin for an energy storage power station, characterized in that: it comprises a container box (1), and the container box (1) consists of a switch room (2) and a centralized control room (3) in the width direction The switch room (2) and the central control room (3) are provided with an emergency access door (4), the switch room (2) is provided with a primary equipment group, and the primary equipment group includes an outlet cabinet (22), a metering cabinet (5), PT cabinet (6), incoming cabinet (7), station transformer (8), outgoing cabinet (22), metering cabinet (5), PT cabinet (6), incoming cabinet (7), station The substations (8) are connected in sequence through the busbar, the outlet cabinet (22) is connected to the busbar on the low-voltage side of the nearby substation, and the inlet cabinet (7) is connected to the power supply side through cables. The primary equipment group is used in the charging and discharging process of the energy storage station. Receiving and transmitting electric energy; the centralized control room (3) is provided with a secondary equipment group, an energy management system of an energy storage power station and a fire alarm system (20), and the secondary equipment group in the centralized control room (3) includes an AC power supply cabinet (9) , AC feeder cabinet (10), safety automation cabinet (11), telecontrol communication cabinet (12), security screen cabinet (13), DC power cabinet (14), battery cabinet (15), backup cabinet one (16), Standby cabinet two (17), operation console (18), simulation screen (19), the secondary equipment group monitors, controls and protects the primary equipment, and the energy management system of the energy storage power station in the centralized control room (3) includes the energy management system cabinet ( 21), the energy management system cabinet (21) is connected to the highest-level battery management system and bidirectional inverter of the energy storage power station. The energy management system of the energy storage power station is responsible for managing the charging and discharging, boosting and inversion processes of the energy storage power station, and the fire alarm system. (20) Manage the fire protection, communication and monitoring of the whole station. 2. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, wherein the AC power supply cabinet (9) and the AC feeder cabinet (10) are placed adjacent to each other, and the AC power supply cabinet (9) ) with ATS dual power automatic switching device. 3. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, characterized in that: the safety automation cabinet (11) is provided with a public measurement and control device, a frequency and voltage emergency control device, and a power quality online monitoring device and the interactive terminal of the energy storage power station; the power quality online monitoring device is connected to the outlet cabinet (22) in the switch room (2) to measure the AC current and voltage loop; the frequency and voltage emergency control device is connected to the outlet cabinet (22) in the switch room (2). 22) Connection, protection of alternating current and voltage loops. 4. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, characterized in that: the telecontrol communication cabinet (12) is connected with a public monitoring and control device through cables and network cables, and the telecontrol communication cabinet (12) 12) Connect with the remote dispatch center through optical fiber. 5. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, wherein the security screen cabinet (13) is provided with a digital network hard disk video recorder, a hard disk, a display, and a core switch. 6. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, characterized in that: the DC power supply cabinet (14) and the storage battery cabinet (15) are placed adjacent to each other, and the DC power supply cabinet (14) There is a power switch device on it. 7. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, wherein the switch room (2) and the centralized control room (3) are both provided with an integral container air conditioner, and the switch room (2) ) and the roof of the central control room (3) are provided with smoke detectors, temperature sensors and network dome cameras. 8. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, characterized in that: the surface of the container box (1) is provided with an anti-corrosion coating, and the surrounding sides of the container box (1) are provided with an anti-corrosion coating. Both the wall and the top wall are provided with a sandwich slate rock wool insulation layer. 9. The medium/high voltage centralized control prefabricated cabin for an energy storage power station according to claim 1, wherein the fire alarm system (20) is provided with a fire fighting host, an input/output module, a short-circuit isolator, an input/output The output module is connected with the fire fighting host, and the short-circuit isolator is installed at the intersection of the main line and the branch line of the fire alarm system (20).

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