Small transient switching liquid cooling industrial and commercial energy storage all-in-one machine

Abstract

The invention discloses a small liquid cooling industrial and commercial energy storage all-in-one machine with a transient switching function, and belongs to the field of energy storage devices. A power distribution system, a battery fire-fighting environment control system and a liquid cooling system are arranged in the cabinet body; an energy storage converter PCS and an STS transient change-over switch are arranged in the power distribution system, and the energy storage converter PCS is electrically connected with an external solar cell panel; the energy storage converter PCS is electrically connected with the STS transient change-over switch; the power distribution system comprises a battery cluster and a battery management system BMS, and the battery management system BMS is in communication connection with the battery cluster; and the energy management system EMS is in communication connection with the battery fire-fighting environment control system and the liquid cooling system. According to the invention, the problems of equipment damage, data loss and communication signal disappearance caused by temporary power failure are avoided, and grid-connected and off-grid control, peak load shifting, demand control, transient switching, new energy fluctuation stabilization, dynamic capacity expansion, energy storage income optimization and the like are realized. Fire safety is guaranteed, the cooling effect is improved, and high reliability, high circulation and long service life of the device are achieved.

Description

Technical Field

[0001] The invention relates to the field of energy storage devices, and in particular to a small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling. Background Art

[0002] In the energy transformation, energy storage is the main battlefield, new power systems are the booster, and new energy is the core. Due to the high energy of energy storage devices, they can provide reliable power for small factories, large data centers, hospitals, and national defense.

[0003] Existing energy storage devices cannot supply power to some precision instruments in time during power outages, resulting in equipment damage, data loss, and disappearance of communication signals, affecting the operation of the instruments and easily increasing the risk. Summary of the invention

[0004] In view of the above problems existing in the prior art, the object of the present invention is to provide a small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling comprises a cabinet; a power distribution system, a battery fire protection and environmental control system, and a liquid cooling system are arranged in the cabinet; an energy storage converter PCS and an STS instantaneous switching switch are arranged inside the power distribution system, and the energy storage converter PCS is electrically connected to an external solar panel;

[0007] The energy storage converter PCS and STS transient switching switches are energized and connected;

[0008] The power distribution system includes a battery cluster and a battery management system BMS, and the battery management system BMS is communicatively connected with the battery cluster;

[0009] There are multiple battery packs inside the battery cluster, which are connected to each other through series high-voltage wires, and the battery cluster is electrically connected to the STS transient switching switch;

[0010] The STS instantaneous transfer switch is electrically connected to the high-voltage box, and the high-voltage box is electrically connected to the load through the junction box;

[0011] The STS instantaneous transfer switch is connected to the electric meter EM;

[0012] The electric meter EM is communicatively connected with the energy management system EMS, and the energy management system EMS is communicatively connected with the battery fire protection environment control system and the liquid cooling system.

[0013] As a further solution of the present invention: the battery fire protection and environmental control system includes a primary fire protection system, a secondary fire protection system, and a tertiary fire protection system.

[0014] As a further solution of the present invention: the liquid cooling system includes a liquid cooling pipeline system and a liquid cooling unit system.

[0015] As a further solution of the present invention: a DC / DC converter and a bidirectional AC / DC converter are arranged inside the energy storage converter PCS, and the DC / DC converter is connected to the bidirectional AC / DC converter via a cable and a communication line.

[0016] As a further solution of the present invention: the STS transient switching switch is connected to the transformer through the electric meter EM and the energized wire, and the transformer is energized to the external mains.

[0017] As a further solution of the present invention: the primary fire protection system is arranged on one side of the battery cluster inside the cabinet, and the raw material of the secondary fire protection system is perfluorohexanone.

[0018] As a further solution of the present invention: the secondary fire protection system is arranged on one side of the energy storage converter PCS and STS transient switching switch inside the cabinet, and the raw materials of the primary fire protection system are ethylene glycol, water and explosion-proof agent.

[0019] As a further solution of the present invention: the three-level fire protection system is arranged at the bottom of the cabinet, and the raw material of the three-level fire protection system is water.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention solves the problems of equipment damage, data loss, and communication signal disappearance caused by temporary power outages in factories, large data centers, hospitals, and national defense, and realizes on-grid and off-grid control, peak shaving and valley filling, demand control, transient switching, smoothing of new energy fluctuations, dynamic capacity expansion, and optimization of energy storage benefits. The system is equipped with a liquid cooling device, which prevents fires in battery cells through the first level, prevents fires in electrical appliances through the second level, and prevents the entire cabinet from being out of control through the third level, achieving high reliability, high cycle, and long life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a circuit principle block diagram of a small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling disclosed in an embodiment.

[0023] Figure 2 The present invention is a schematic structural diagram of a small-scale industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling disclosed in an embodiment.

[0024] The reference numerals in the figure are: 1. cabinet; 2. energy storage converter PCS; 3. STS transient switching switch; 4. high-voltage box; 5. energy management system EMS; 6. secondary fire protection system; 7. junction box; 8. series high-voltage line; 9. battery cluster; 10. tertiary fire protection system; 11. liquid cooling pipeline system; 12. primary fire protection system; 13. liquid cooling unit system; 14. battery fire protection environmental control system; 15. liquid cooling system; 16. solar panel; 17. battery management system BMS; 18. electric meter EM; 19. load; 20. transformer; 21. external AC power. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", and "connected" should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, or an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-2 A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling comprises a cabinet 1; a power distribution system, a battery fire protection and environmental control system 14, and a liquid cooling system 15 are arranged in the cabinet 1; an energy storage converter PCS2 and an STS instantaneous switching switch 3 are arranged inside the power distribution system, and the energy storage converter PCS2 is electrically connected to an external solar panel 16; the external solar panel 16 can conveniently convert light energy into electrical energy, facilitate the subsequent power supply, and ensure safety.

[0028] The energy storage converter PCS2 and the STS transient switching switch 3 are electrically connected. The STS transient switching switch 3 is convenient for instantaneous switching of the working state. When a power outage occurs, the battery cluster 9 is switched to supply power through the STS transient switching switch 3, thereby avoiding dangers such as equipment damage, data loss, and disappearance of communication signals caused by power outages to precision instruments, and realizing on-grid and off-grid control, peak shaving and valley filling, demand control, transient switching, smoothing of new energy fluctuations, dynamic capacity expansion, and optimization of energy storage benefits, thereby increasing safety.

[0029] The power distribution system includes a battery cluster 9 and a battery management system BMS17. The battery management system BMS17 is in communication connection with the battery cluster 9. The battery management system BMS17 facilitates the control of the operation of the battery cluster 9, increases safety, and facilitates the use of the device.

[0030] A plurality of battery packs are arranged inside the battery cluster 9, and the battery packs are interconnected through a series high-voltage line 8. The battery cluster 9 is electrically connected to the STS transient switching switch 3. When there is surplus power supply, the electric energy converted by the external solar panel 16 is stored in the battery cluster 9, so as to facilitate the subsequent power supply when the solar panel does not work on a power outage or rainy day, thereby increasing safety and facilitating the use of the device.

[0031] The STS instantaneous switching switch 3 is electrically connected to the high-voltage box 4, and the high-voltage box 4 is electrically connected to the load 19 through the junction box 7, which facilitates the power supply to the load 19, ensures the use of the device, and increases safety.

[0032] The STS instantaneous switching switch 3 is connected to the electric meter EM18, and the electric power consumption is recorded by the electric meter EM18, which is convenient for subsequent viewing and increases safety.

[0033] The electric meter EM18 is communicated with the energy management system EMS5, and the energy management system EMS5 is communicated with the battery fire protection and environmental control system 14 and the liquid cooling system 15. The energy management system EMS5 is convenient for controlling the communication connection between the battery fire protection and environmental control system 14 and the liquid cooling system 15, which is beneficial to ensure the safety of the work inside the cabinet 1.

[0034] The battery fire protection and environmental control system 14 includes a primary fire protection system 12, a secondary fire protection system 6, and a tertiary fire protection system 10; it is convenient and timely to ensure the fire safety inside the device, avoid the occurrence of fire, and increase safety.

[0035] The liquid cooling system 15 includes a liquid cooling pipeline system 11 and a liquid cooling unit system 13, which facilitates cooling of the interior of the device, avoids potential safety hazards caused by excessively high temperatures inside the device, increases safety, and facilitates the use of the device.

[0036] The energy storage converter PCS2 is internally provided with a DC / DC converter and a bidirectional AC / DC converter. The DC / DC converter is connected to the bidirectional AC / DC converter via cables and communication lines, so that the nature and safety of the current output by the energy storage converter PCS2 can be controlled at any time, thereby increasing safety and facilitating the use of the device.

[0037] The STS transient switching switch 3 is connected to the transformer 20 through the electric meter EM18 and the power-carrying wire. The transformer 20 is electrically connected to the external mains 21. According to the actual working situation, the external mains 21 can be selected to be connected. Through the control of the transformer 20, it is convenient to power the load 19, which is beneficial to the use of the device and ensures safety.

[0038] The primary fire protection system 12 is arranged on one side of the battery cluster 9 inside the cabinet 1. The secondary fire protection system 6 is made of perfluorohexanone and acts on the battery cluster to prevent fires in electrical appliances.

[0039] The secondary fire protection system 6 is arranged on one side of the energy storage converter PCS2 and the STS transient switching switch 3 inside the cabinet 1. The raw materials of the primary fire protection system 12 are ethylene glycol, water and explosion-proof agent, which ensures the safety of the power distribution inside the device and facilitates the use of the device.

[0040] The three-level fire protection system 10 is arranged at the bottom of the cabinet 1. The raw material of the three-level fire protection system 10 is water, which prevents the whole cabinet from catching fire.

[0041] The present invention uses STS transient switching to enable a small industrial and commercial energy storage integrated machine to have a backup power supply function to prevent damage to precision equipment. It can also provide a reliable power supply for large data centers and important inspection instruments in hospitals.

[0042] The present invention solves the problems of equipment damage, data loss, and communication signal disappearance caused by temporary power outages in factories, large data centers, hospitals, and national defense, and realizes on-grid and off-grid control, peak shaving and valley filling, demand control, transient switching, smoothing of new energy fluctuations, dynamic capacity expansion, and optimization of energy storage benefits. The system is equipped with a liquid cooling device, which prevents fires in the battery cells through the first level, prevents fires in electrical appliances through the second level, and prevents the entire cabinet from being out of control through the third level. The device is highly reliable, has a high cycle, and has a long life.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention, and any reference numerals in the claims should not be considered as limiting the claims involved.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A small-sized industrial and commercial energy storage device with instantaneous switching liquid cooling, characterized in that: The invention comprises a cabinet (1); the cabinet (1) is provided with a power distribution system, a battery fire protection and environmental control system (14), and a liquid cooling system (15); the power distribution system is provided with an energy storage converter PCS (2) and an STS transient switching switch (3); the energy storage converter PCS (2) is electrically connected to an external solar cell panel (16); The energy storage converter PCS (2) and the STS transient switching switch (3) are electrically connected; The power distribution system comprises a battery cluster (9) and a battery management system BMS (17), wherein the battery management system BMS (17) is communicatively connected with the battery cluster (9); A plurality of battery packs are arranged inside the battery cluster (9), and the battery packs are connected to each other via a series high-voltage line (8), and the battery cluster (9) is electrically connected to the STS transient switching switch (3); The STS instantaneous switching switch (3) is electrically connected to the high-voltage box (4), and the high-voltage box (4) is electrically connected to the load (19) through the junction box (7); The STS instantaneous switching switch (3) is connected to the electric meter EM (18); The electric meter EM (18) is communicatively connected to the energy management system EMS (5), and the energy management system EMS (5) is communicatively connected to the battery fire protection environment control system (14) and the liquid cooling system (15).

2. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 1, characterized in that: The battery fire protection and environmental control system (14) comprises a primary fire protection system (12), a secondary fire protection system (6), and a tertiary fire protection system (10).

3. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 2, characterized in that: The liquid cooling system (15) comprises a liquid cooling pipeline system (11) and a liquid cooling unit system (13).

4. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 3, characterized in that: The energy storage converter PCS (2) is internally provided with a DC / DC converter and a bidirectional AC / DC converter, and the DC / DC converter is connected to the bidirectional AC / DC converter via a cable and a communication line.

5. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 4, characterized in that: The STS transient switching switch (3) is connected to a transformer (20) via an electric meter EM (18) and an energized wire, and the transformer (20) is electrically connected to an external mains power (21).

6. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 2, characterized in that: The primary fire protection system (12) is arranged on one side of the battery cluster (9) inside the cabinet (1), and the raw material of the secondary fire protection system (6) is perfluorohexanone.

7. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 6, characterized in that: The secondary fire protection system (6) is arranged on one side of the energy storage converter PCS (2) and the STS transient switching switch (3) inside the cabinet (1), and the raw materials of the primary fire protection system (12) are ethylene glycol, water and explosion-proof agent.

8. A small-sized industrial and commercial energy storage integrated machine with instantaneous switching liquid cooling according to claim 7, characterized in that: The three-level fire protection system (10) is arranged at the bottom of the cabinet (1), and the raw material of the three-level fire protection system (10) is water.

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