Power distribution system and intelligent scheduling system of data center

Abstract

The invention discloses a power distribution system and an intelligent scheduling system of a data center, and relates to the switching field of an electric energy storage system, and the system comprises a high-voltage AC power supply, a low-voltage AC power supply and a user. The intelligent scheduling system is matched with the power distribution system; a continuous switching element; the continuous switch element comprises a conductive insulation switching medium, a cavity in the switch is continuously and completely filled with the conductive insulation switching medium, the conductive insulation switching medium comprises 1T-tantalum disulfide, and switching between conduction and insulation is achieved through the 1T-tantalum disulfide under specific conditions. Contact damage caused by the arc spark phenomenon generated in the conveying process of the current among the high-voltage / low-voltage alternating current, the energy storage equipment and a user can be reduced, the problem that the conductivity is reduced due to contact damage can be reduced, loss is small during electric energy storage and release, cost is reduced, and the energy storage equipment is expected to be put into use in a large area.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of switching of electrical energy storage systems, in particular to a power distribution system and intelligent scheduling system of a data center. BACKGROUND

[0002] In the power distribution system, energy storage devices are usually used to store off-peak electricity, and the stored off-peak electricity is used in the peak-valley stage to save use cost. However, the storage of high-voltage alternating current into the energy storage device usually needs to use a vacuum circuit breaker to realize the switching of the circuit. The vacuum arc chamber of the vacuum circuit breaker can effectively extinguish the arc. In normal operation, the problem of arc spark is less, but there are still arc sparks. In extreme cases such as short circuit or overload, more arc sparks occur, which greatly reduces the service life of the cables and vacuum circuit breakers in the power distribution system.

[0003] If low-voltage alternating current is stored in the energy storage device or the stored electricity in the energy storage device is delivered to the user, an isolating switch or a load switch is usually needed. The isolating switch does not have arc extinguishing function and is easy to produce arc sparks in the operation process. The load switch can only reduce the generation of arc sparks, and arc sparks still occur in the operation process, which has the defects of damaging electrical equipment, accelerating the aging of insulation materials, and shortening the service life of the equipment.

[0004] Therefore, it is necessary to provide a power distribution system and intelligent scheduling system of a data center to solve the above problems. SUMMARY

[0005] The present application aims to provide a power distribution system and intelligent scheduling system of a data center to solve the problem of easy generation of arc sparks in the process of energy storage and release of the energy storage device in the power distribution system, which damages electrical equipment, accelerates the aging of insulation, and shortens the service life of the equipment.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a power distribution system of a data center, comprising:

[0007] A high-voltage alternating current source, a low-voltage alternating current source, and a user. The delivery of electrical energy between the high-voltage alternating current source and the user is controlled by a first switch. The delivery of electrical energy between the low-voltage alternating current source and the user is usually controlled by a fourth switch.

[0008] An intelligent scheduling system used in cooperation with the power distribution system. The intelligent scheduling system comprises a second switch for controlling the delivery of electrical energy between the energy storage device high-voltage alternating current source and the energy storage device, a third switch for controlling the delivery of electrical energy between the low-voltage alternating current source and the energy storage device, and a fifth switch for controlling the delivery of electrical energy between the energy storage device and the user.

[0009] The first switch, the second switch, the third switch, the fourth switch and the fifth switch are all configured with continuous switch elements, and the continuous switch elements comprise conductive insulating switching medium, and the conductive insulating switching medium continuously and completely fills the cavity inside the switch;

[0010] The conductive insulating switching medium comprises 1T-potassium dithiosulfate, and the 1T-potassium dithiosulfate realizes switching between conduction and insulation under specific conditions.

[0011] Preferably, the specific conditions comprise illumination wavelength, illumination intensity and illumination time.

[0012] Preferably, the illumination wavelength ranges between 400 and 700 nm.

[0013] Preferably, the illumination intensity ranges between 100 and 300 mW / cm 2 .

[0014] Preferably, the illumination time ranges between 0.1 and 1.0 seconds.

[0015] Preferably, the conductive insulating switching medium is filled in the inside of the insulating switch housing and fills the inside of the insulating switch housing, and the two ends of the insulating switch housing are respectively provided with a first conductive connection end and a second conductive connection end, and the first conductive connection end is used for connecting a high-voltage alternating current power supply, a low-voltage alternating current power supply or an energy storage device.

[0016] The second conductive connection end is used for connecting an energy storage device or a user.

[0017] Preferably, one side of the insulating switch housing is fixedly provided with a switching mechanism starting box, the switching mechanism starting box is provided with a switching mechanism starting cavity, and an adjustable wavelength type light source is installed in the switching mechanism starting cavity.

[0018] Preferably, the side surface of the insulating switch housing is also provided with a notch groove, and a transparent plate is fixedly arranged in the notch groove, and the transparent plate is isolated between the switching mechanism starting cavity and the inside of the insulating switch housing.

[0019] Preferably, the transparent plate comprises an insulating glass plate, a transparent polycarbonate plate and a transparent polymethyl methacrylate plate.

[0020] Technical effects and advantages of the present application:

[0021] 1. The power distribution system and intelligent scheduling system of the data center can reduce the arc spark phenomenon caused by the current during the transmission process between the high-voltage / low-voltage alternating current, the energy storage device and the user, so as to reduce the problem of reduced conductivity caused by contact damage, reduce the energy loss during energy storage and release, reduce the cost, and make the energy storage device expected to be widely used.

[0022] 2、The conductive insulation switching medium in the application can realize rapid switching between conduction and insulation under certain conditions, based on the fact that there is no excess cavity or air in the switch, the generation of arc spark phenomenon is completely avoided, and based on the fact that the conductive insulation switching medium is a solid substance that is continuously and completely filled in the switch, a longer length can be set, thereby increasing the gap between the contacts, further avoiding the problems of arc spark generation, contact adhesion, breakdown and the like;

[0023] 3、The application is particularly suitable for use in high-temperature, high-humidity, chemically corrosive, dusty and dirty environments, high-frequency operating environments and high-frequency vibration environments;

[0024] 4、The core of the application is to apply 1T-potassium disulfide to the switch between the high-voltage / low-voltage alternating current power supply, energy storage equipment and user connection, completely eliminate the arc spark phenomenon, and the method for applying 1T-potassium disulfide to the switch. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is a schematic diagram of the power distribution system and intelligent scheduling system module structure of the data center of the application.

[0026] Fig. 2 It is a schematic diagram of the internal structure of the insulating switch shell.

[0027] In the figure: 1, insulating switch shell; 2, first conductive connection end; 3, second conductive connection end; 4, conductive insulation switching medium; 5, switching mechanism starting box; 6, switching mechanism starting cavity; 7, transparent plate; 8, adjustable wavelength type light source. DETAILED DESCRIPTION

[0028] The main income mode of the energy storage equipment is through peak-valley price difference arbitrage and auxiliary service market, then, the power spot market is not mature, the compensation mechanism is missing, leading to unstable income, for example, some regions reduce the peak-valley price to 25%, directly leading to the fact that the income of the energy storage equipment cannot cover the cost, thus leading to the problem that the energy storage equipment needs to be built but cannot be used or cannot be built.

[0029] Therefore, the application provides a power distribution system and intelligent scheduling system for a data center as shown in Figs. 1-2 which can reduce the damage of contacts caused by the arc spark phenomenon generated during the transmission of current between high-voltage / low-voltage alternating current, energy storage equipment and users, can reduce the problem of reduced conductivity caused by contact damage, makes the energy storage and release loss small, reduces the cost, and makes the energy storage equipment expected to be widely used.

[0030] The arc spark between the contacts in the prior art is usually related to the size of the contact gap, and the arc spark problem is more likely to occur when the gap between the contacts is too large, but if the gap between the contacts is too small, although the arc spark phenomenon is weakened, the contacts cannot be completely separated when they are disconnected, and the phenomenon of contact sticking occurs, which affects the safe operation of the equipment, and the too small contact gap is easy to be broken down, resulting in the generation of arc, and the duration of the arc is prolonged, which is easy to cause the contact ablation.

[0031] The power distribution system of the data center in the application comprises a high-voltage alternating current power supply, a low-voltage alternating current power supply and a user, the high-voltage alternating current power supply and the user are controlled by a first switch, the low-voltage alternating current power supply and the user are usually controlled by a fourth switch, according to different users, the first switch can be opened when the power of the high-voltage alternating current power supply is selected to be delivered to the user; if the power of the low-voltage alternating current power supply is selected to be delivered to the user, the fourth switch can be opened.

[0032] The intelligent scheduling system in the application comprises an energy storage device, the high-voltage alternating current power supply and the energy storage device are controlled by a second switch, the low-voltage alternating current power supply and the energy storage device are controlled by a third switch, and the energy storage device and the user are controlled by a fifth switch.

[0033] When working, the second switch and the third switch can be opened to store the power generated by the high-voltage alternating current power supply and the low-voltage alternating current power supply to the energy storage device at the electricity trough, and the first switch and the fourth switch are opened at the same time, so that the user also uses low-estimated electricity at the electricity trough; the first switch and the fourth switch are closed, the fifth switch is opened, and peak-valley power supply is stopped at the electricity peak-valley, so that the power stored in the energy storage device is supplied to the user, which can greatly reduce the electricity cost and reduce the pressure of peak-valley electricity.

[0034] It should be noted that whether the power of the high-voltage alternating current power supply and the low-voltage alternating current power supply is delivered to the user or the energy storage device or the power of the energy storage device is delivered to the user, an electric energy converter or a corresponding power management system needs to be configured to realize the effective conversion, control and distribution of electric energy; the electric energy converter plays a crucial role in this process, which can convert electric energy of different voltage levels and different types to meet the specific requirements of user equipment or energy storage equipment.

[0035] For example, when the high-voltage alternating current power supply needs to supply power to the low-voltage alternating current equipment, the electric energy converter can convert the high-voltage electric energy into low-voltage electric energy; when the direct current electric energy stored in the energy storage device needs to be delivered to the alternating current user, the electric energy converter can convert the direct current into alternating current.

[0036] In addition, the power management system is responsible for real-time monitoring and optimization of the transmission, distribution and use of electric energy, ensuring the quality and stability of the supply of electric energy, and can intelligently adjust the distribution strategy of electric energy according to the demand of users and the operation state of the power grid, improve the energy utilization efficiency, and reduce the loss.

[0037] At the same time, the power management system also has fault detection and protection function, which can take measures in time when abnormal conditions occur in the process of electric energy transmission, and protect the safety of equipment and personnel.

[0038] In summary, the electric energy converter and the power management system are the key links to realize efficient, safe and stable transmission and utilization of electric energy, and have important significance for building modern smart grid and promoting energy transformation. In the present application, a third converter is arranged between the first switch and the user, a first electric energy converter is arranged between the second switch, the third switch and the energy storage device, a fourth electric energy converter is arranged between the fourth switch and the user, and a second electric energy converter is arranged between the energy storage device and the fifth switch. The electric energy converter can use common AC / DC converter, DC / AC converter, DC / DC converter or AC / AC converter, and bidirectional inverter, which are mature technologies and will not be described here.

[0039] The first switch, the second switch, the third switch, the fourth switch and the fifth switch in the present application are all configured with continuous switching elements. The continuous switching element refers to that the cavity inside the switch is completely filled with conductive insulation switching medium 4. The conductive insulation switching medium 4 can realize rapid switching between conduction and insulation under certain conditions. Based on the fact that there is no excess cavity or air inside the switch, the generation of arc spark phenomenon is completely avoided. Moreover, based on the fact that the conductive insulation switching medium 4 is a solid substance continuously and completely filled in the switch, a longer length can be set, so as to increase the gap between the contacts, and further avoid the problems of arc spark generation, contact adhesion and breakdown.

[0040] Reference Fig. 2 As shown in the reference, the continuous switching element includes conductive insulation switching medium 4, which is filled in the inside of the insulation switch housing 1 and fills the inside of the insulation switch housing 1 completely. The two ends of the insulation switch housing 1 are respectively provided with a first conductive connection end 2 and a second conductive connection end 3. The first conductive connection end 2 is used for connecting a high-voltage alternating current power supply, a low-voltage alternating current power supply or an energy storage device. The second conductive connection end 3 is used for connecting an energy storage device or a user.

[0041] A switching mechanism starting box 5 is fixedly arranged on one side of the insulating switch shell 1, and a switching mechanism starting cavity 6 is arranged in the switching mechanism starting box 5; in addition, a notch groove is arranged on the side surface of the insulating switch shell 1, and a transparent plate 7 is fixedly arranged in the notch groove, which is isolated between the switching mechanism starting cavity 6 and the inside of the insulating switch shell 1; and an adjustable wavelength light source 8 is installed in the switching mechanism starting cavity 6.

[0042] In the present application, the insulating switch shell 1 uses 1T-potassium disulfide (1T-TaS2), which is a quantum material capable of rapidly switching between conductive and insulating states under certain conditions. This material can achieve a stable "hidden metal state" under certain light conditions, which can be maintained for several months in an environment close to room temperature, and has certain stability in practical application. However, the long-term stability of 1T-potassium disulfide still needs further research. Therefore, although the use of 1T-potassium disulfide as a conductive and insulating material for the switch can reduce the phenomenon of electric arc sparks, the service life is relatively short, but it still has the advantage of reducing power loss in a small range of fields. For example, in high-temperature, high-humidity, chemical corrosion, dust and pollution, high-frequency operation, high-frequency vibration and other environments, the switch needs to be replaced every few months or a year or so, which is very suitable for use in specific environments.

[0043] Table 11: 1T-potassium disulfide conductive light condition parameter table

[0044]

[0045]

[0046] The research in Table 1 shows that 1T-potassium disulfide can be effectively activated between light wavelength (λ): 400-700 nanometers, light condition: 100-300 mW / cm 2 , and light time: 0.1-1 seconds, thereby realizing conductivity.

[0047] The core of the present application is to apply 1T-potassium disulfide to the switch between high-voltage / low-voltage alternating current power supply, energy storage equipment and user connection, completely eliminating the phenomenon of electric arc sparks, and applying 1T-potassium disulfide to the method of making switches.

[0048] It should be noted that the transparent plate 7 can use insulating glass plates, transparent polycarbonate plates, transparent polymethyl methacrylate plates, etc., which can be selected according to the actual needs of those skilled in the art.

[0049] Among them, the adjustable wavelength light source 8 can also be selected according to the needs of those skilled in the art, which is a mature existing technology, such as:

[0050] HSX-F300S double light box xenon lamp light source (sunlight simulator) standard type; wavelength range between 400nm-780nm, optional single color light specifications have 405nm, 420nm, 435nm, 450nm, 475nm, 500nm, 520nm, 550nm, 600nm, 630nm, 650nm, 700nm, 750nm; can provide stable specific wavelength light.

[0051] C30724EH|C30724EH-2|C30724PH of the photodiode light source, etc.

Claims

1. A power distribution system for a data center, characterized by, It comprises: A high-voltage AC power supply, a low-voltage AC power supply and a user, the high-voltage AC power supply and the user are connected through a first switch to control the transmission of electric energy, the low-voltage AC power supply and the user are usually connected through a fourth switch to control the transmission of electric energy; An intelligent scheduling system used with the power distribution system, the intelligent scheduling system comprises a high-voltage AC power supply and a storage device, the high-voltage AC power supply and the storage device are connected through a second switch to control the transmission of electric energy, the low-voltage AC power supply and the storage device are connected through a third switch to control the transmission of electric energy, the storage device and the user are connected through a fifth switch to control the transmission of electric energy; The first switch, the second switch, the third switch, the fourth switch and the fifth switch are all configured with a continuous switching element, the continuous switching element comprises a conductive and insulating switching medium (4), which continuously and completely fills the cavity inside the switch; The conductive and insulating switching medium (4) comprises 1T-potassium disulfide, which realizes switching between conduction and insulation under specific conditions.

2. The power distribution system of a data center of claim 1, wherein: The specific conditions include: light wavelength, light intensity and light time.

3. The power distribution system of a data center of claim 2, wherein: The light wavelength ranges between 400-700nm.

4. The power distribution system of a data center of claim 2, wherein: The light intensity is between 100 and 300 mW / cm 2 .

5. The power distribution system of a data center of claim 2, wherein: The light time is between 0.1-1.0 seconds.

6. The power distribution system of a data center of claim 1, wherein: The conductive and insulating switching medium (4) is filled in the inside of the insulating switch housing (1) and fills the inside of the insulating switch housing (1), the two ends of the insulating switch housing (1) are respectively provided with a first conductive connection end (2) and a second conductive connection end (3), the first conductive connection end (2) is used to connect the high-voltage AC power supply, the low-voltage AC power supply or the storage device; The second conductive connection end (3) is used to connect the storage device or the user.

7. The power distribution system of a data center of claim 6, wherein: One side of the insulating switch housing (1) is fixedly provided with a switching mechanism starting box (5), the switching mechanism starting box (5) is provided with a switching mechanism starting cavity (6), and the switching mechanism starting cavity (6) is installed with an adjustable wavelength light source (8).

8. The power distribution system of a data center of claim 7, wherein: The side of the insulating switch housing (1) is also provided with a notch groove, the notch groove is fixedly provided with a transparent plate (7), and the transparent plate (7) is isolated between the switching mechanism starting cavity (6) and the inside of the insulating switch housing (1).

9. The power distribution system of a data center of claim 8, wherein: The transparent plate (7) comprises an insulating glass plate, a transparent polycarbonate plate and a transparent polymethyl methacrylate plate.

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