Data center energy storage system

Abstract

The utility model discloses a data center energy storage system, which comprises a control module, an energy storage module, an emergency power supply module and an execution module, the execution module is arranged corresponding to the energy storage module and the emergency power supply module, the execution module comprises a plurality of circuit breakers, and the control module mainly comprises an input unit, an arithmetic unit and an output unit. The energy storage module is connected with the input unit and the output unit; the emergency power supply module is connected with the input unit and the output unit; the input unit is connected with the arithmetic unit; the arithmetic unit is connected with the output unit, and each circuit breaker is connected with the input unit and the output unit; according to the utility model, the peak load shifting function is realized, the load of the power grid is balanced by adjusting the power consumption time, the power consumption in the peak period is reduced, and the power consumption in the valley period is increased, so that the power cost is reduced, the cost is reduced, the efficiency is improved, and the service life of the UPS backup battery can be prolonged by adjusting the discharge depth of the UPS backup battery.

Description

Technical Field

[0001] The utility model relates to the technical field of power protection, and particularly relates to an energy storage system for a data center. Background Art

[0002] As the core of modern information technology, the data center undertakes the tasks of a large amount of data storage, processing and transmission. With the rapid development of cloud computing and big data, the scale and importance of the data center are increasing day by day. In the operation of the data center, the stability and reliability of power supply are crucial, because any power interruption may lead to data loss, service interruption and even more serious economic losses.

[0003] Traditional data centers usually rely on the main power grid for power supply, but the instability and unpredictability of the power grid make the data center face the risk of power interruption. To cope with this situation, the data center is usually equipped with an emergency power supply system to ensure that key equipment can continue to operate when the main power grid power supply is interrupted, such as an uninterruptible power supply (UPS).

[0004] Although the UPS system provides a certain degree of power protection for the data center, there are still some defects and limitations in practical applications. First, the UPS system does not have the ability to shift peak and fill valley, that is, it cannot reduce power consumption during peak power demand or increase power consumption during valley periods to balance the power grid load. Second, the backup battery of the UPS system will age with the increase of charge and discharge times, and its performance will gradually decline, which may lead to insufficient power supply at critical moments and increase the operation risk of the data center.

[0005] In view of the above defects, the creator of the utility model finally obtained the utility model through long-term research and practice. Content of the Utility Model

[0006] To solve the above technical defects, the technical solution adopted by the utility model is to provide an energy storage system for a data center, including a control module, an energy storage module, an emergency power supply module and an execution module. The control module is connected to the energy storage module, the emergency power supply module and the execution module. The execution module is arranged corresponding to the energy storage module and the emergency power supply module. The execution module includes a number of circuit breakers. The control module mainly includes an input unit, an operation unit and an output unit. The energy storage module is connected to the input unit and the output unit. The emergency power supply module is connected to the input unit and the output unit. The input unit is connected to the operation unit. The operation unit is connected to the output unit. Each circuit breaker is connected to the input unit and the output unit.

[0007] Preferably, the energy storage module mainly includes a bidirectional converter and a lithium iron phosphate battery. The lithium iron phosphate battery is connected to the bidirectional converter, and the bidirectional converter is connected to the input unit and the output unit.

[0008] Preferably, the emergency power supply module mainly includes an uninterruptible power supply and a lead-acid battery. The lead-acid battery is connected to the uninterruptible power supply, and the uninterruptible power supply is connected to the input unit and the output unit.

[0009] Preferably, the data center energy storage system further includes a power supply line, an energy storage line, and an emergency line. The power supply line is provided with a first mains input terminal and a second mains input terminal. The energy storage module is arranged on the energy storage line, and the emergency power supply module is arranged on the emergency line. The power supply line is connected to the load through the energy storage line and the emergency line.

[0010] Preferably, the first mains input terminal is connected to a transformer through a first connection circuit. The transformer is connected to the energy storage line and the emergency line. The second mains input terminal is connected to the first connection circuit through a second connection circuit. The execution module includes a first circuit breaker and a second circuit breaker. The first circuit breaker is arranged on the second connection circuit, and the second circuit breaker is arranged on the first connection circuit. Moreover, the second circuit breaker is arranged between the connection point of the second connection circuit and the first connection circuit and the transformer. The first circuit breaker, the second circuit breaker, the first mains input terminal, and the second mains input terminal are all connected to the control module.

[0011] Preferably, the execution module includes a third circuit breaker and a sixth circuit breaker. The uninterruptible power supply is arranged between the third circuit breaker and the sixth circuit breaker. The third circuit breaker, the sixth circuit breaker, and the uninterruptible power supply are all connected to the control module.

[0012] Preferably, the execution module includes a fourth circuit breaker and a fifth circuit breaker. The bidirectional converter is arranged between the fourth circuit breaker and the fifth circuit breaker. The fourth circuit breaker, the fifth circuit breaker, and the bidirectional converter are all connected to the control module.

[0013] Preferably, the second circuit breaker and the third circuit breaker are normally closed.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention has the function of peak shaving and valley filling, balances the grid load by adjusting the power consumption time, reduces the power consumption during peak hours, increases the power usage during valley hours, thereby reducing the power cost to achieve cost reduction and efficiency improvement. At the same time, by adjusting the discharge depth of the UPS backup battery, the service life of the UPS backup battery can be extended. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the energy storage system for the data center;

[0016] Figure 2 is a circuit structure view of the energy storage system for the data center. Detailed Embodiments

[0017] The following further elaborates on the above and additional technical features and advantages of the present utility model with reference to the accompanying drawings.

[0018] Embodiment 1

[0019] As Figure 1 shown Figure 1 is a schematic structural diagram of the energy storage system for the data center.

[0020] The energy storage system for the data center of the present utility model includes a control module, an energy storage module, an emergency power supply module, and an execution module. The control module is connected to the energy storage module, the emergency power supply module, and the execution module. The execution module is arranged corresponding to the energy storage module and the emergency power supply module. The execution module includes a number of circuit breakers. The control module mainly includes an input unit, an arithmetic unit, and an output unit. The energy storage module is connected to the input unit and the output unit; the emergency power supply module is connected to the input unit and the output unit; the input unit is connected to the arithmetic unit; the arithmetic unit is connected to the output unit, and each of the circuit breakers is connected to the input unit and the output unit. The control module can control the opening and closing of each of the circuit breakers.

[0021] After receiving discrete signals and the bus BUS through the input unit, the control module processes the signals through the arithmetic unit, and the output unit outputs the discrete signals to the energy storage module, the emergency power supply module, and the execution module to achieve system control.

[0022] Embodiment 2

[0023] As Figure 2 shown Figure 2 is a circuit structure view of the energy storage system for the data center. Among them, the controller in the figure is the control module, the 1# mains power is the first mains power input terminal, the 2# mains power is the second mains power input terminal, the circuit breaker 1 is the first circuit breaker, the circuit breaker 2 is the second circuit breaker, the circuit breaker 3 is the third circuit breaker, the circuit breaker 4 is the fourth circuit breaker, the circuit breaker 5 is the fifth circuit breaker, and the circuit breaker 6 is the sixth circuit breaker.

[0024] Specifically, the energy storage module mainly includes a bi-directional converter (PCS) and a lithium iron phosphate battery. The lithium iron phosphate battery is connected to the bi-directional converter, and the bi-directional converter is connected to the input unit and the output unit.

[0025] The emergency power supply module mainly includes an uninterruptible power supply (UPS) and a lead-acid battery. The lead-acid battery is connected to the uninterruptible power supply, and the uninterruptible power supply is connected to the input unit and the output unit.

[0026] Specifically, the data center energy storage system further includes a power supply line, an energy storage line, and an emergency line. The power supply line is provided with a first mains input terminal and a second mains input terminal. The energy storage module is arranged on the energy storage line, and the emergency power supply module is arranged on the emergency line. The power supply line is connected to the load through the energy storage line and the emergency line.

[0027] Specifically, the first mains input terminal is connected to a transformer through a first connection circuit. The transformer is connected to the energy storage line and the emergency line. The second mains input terminal is connected to the first connection circuit through a second connection circuit. The execution module includes a first circuit breaker and a second circuit breaker. The first circuit breaker is arranged on the second connection circuit, and the second circuit breaker is arranged on the first connection circuit. Moreover, the second circuit breaker is arranged between the connection point of the second connection circuit and the first connection circuit and the transformer. The first circuit breaker, the second circuit breaker, the first mains input terminal, and the second mains input terminal are all connected to the control module.

[0028] By controlling the opening and closing of the second circuit breaker, the connection between the first mains input terminal and the second mains input terminal and the energy storage module and the emergency power supply module can be achieved. By controlling the opening and closing of the second circuit breaker, the single connection of the first mains input terminal can be achieved.

[0029] The execution module includes a third circuit breaker and a sixth circuit breaker. The uninterruptible power supply is arranged between the third circuit breaker and the sixth circuit breaker. The third circuit breaker, the sixth circuit breaker, and the uninterruptible power supply are all connected to the control module.

[0030] The execution module includes a fourth circuit breaker and a fifth circuit breaker. The bi-directional converter is arranged between the fourth circuit breaker and the fifth circuit breaker. The fourth circuit breaker, the fifth circuit breaker, and the bi-directional converter are all connected to the control module.

[0031] The power supply status of the first mains input terminal, the mains power supply status of the second mains input terminal, and the switch status signals of circuit breakers 1-6 are connected to the input unit, and the status signals are converted into a data type recognizable by the control module.

[0032] The converted data is transmitted to the arithmetic unit for logical processing, and the control command is transmitted to the output unit to control the execution device.

[0033] The working principle of the present utility model is as follows:

[0034] If the power supply status of 1# mains = true or the power supply status of 1# mains = false and the power supply status of 2# mains = true and circuit breaker 1 = on, and it is at the peak power period of the mains, then the fourth circuit breaker and the sixth circuit breaker trip, that is, the fourth circuit breaker = off, the sixth circuit breaker = off; the fifth circuit breaker closes, that is, the fifth circuit breaker = on. At this time, the system operates in the peak shaving and valley filling discharge mode.

[0035] If the power supply status of 1# mains = true or the power supply status of 1# mains = false and the power supply status of 2# mains = true and circuit breaker 1 = on, and it is at the valley power period of the mains, then the fourth circuit breaker and the sixth circuit breaker close, that is, the fourth circuit breaker = on, the sixth circuit breaker = on; the fifth circuit breaker trips, that is, the fifth circuit breaker = off. At this time, the system operates in the peak shaving and valley filling charging mode.

[0036] If the power supply status of 1# mains = true or the power supply status of 1# mains = false and the power supply status of 2# mains = true and circuit breaker 1 = on, and it is at a non-peak or valley power period of the mains, then the sixth circuit breaker closes, that is, the sixth circuit breaker = on; the fourth circuit breaker trips, and the fifth circuit breaker trips, that is, the fourth circuit breaker = off, the fifth circuit breaker = off. At this time, the system operates in the offline mode.

[0037] If the power supply status of 1# mains = false and the power supply status of 2# mains = false, that is, when both mains are faulty, then the fourth circuit breaker trips, that is, the fourth circuit breaker = off; the fifth circuit breaker closes and the sixth circuit breaker closes, that is, the fifth circuit breaker = on, the sixth circuit breaker = on. At this time, the system operates in the emergency power supply mode, and at the same time controls the output parameters of the UPS and PCS to be synchronized, that is, in the same phase, the same frequency, and the same voltage; adjusts the output power of the PCS to a preset value; adjusts the output power of the UPS to the difference between the load operating power and the output power of the PCS.

[0038] The utility model has the function of peak shifting and valley filling, balances the grid load by adjusting the power consumption time, reduces the power consumption during peak hours, increases the power usage during valley hours, thereby reducing the power cost to achieve cost reduction and efficiency improvement. At the same time, by adjusting the discharge depth of the UPS backup battery, the service life of the UPS backup battery can be extended.

[0039] The above are only the preferred embodiments of the utility model, which are illustrative rather than restrictive to the utility model. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the utility model, but all will fall within the protection scope of the utility model.

Claims

1. A data center energy storage system, characterized in that: It includes a control module, an energy storage module, an emergency power supply module and an execution module, the control module is connected to the energy storage module, the emergency power supply module and the execution module, the execution module is arranged corresponding to the energy storage module and the emergency power supply module, the execution module includes a plurality of circuit breakers, the control module mainly includes an input unit, an operation unit and an output unit, the energy storage module is connected to the input unit and the output unit; the emergency power supply module is connected to the input unit and the output unit; the input unit is connected to the operation unit; the operation unit is connected to the output unit, and each circuit breaker is connected to the input unit and the output unit.

2. The data center energy storage system according to claim 1, characterized in that: The energy storage module includes a bidirectional converter and a lithium iron phosphate battery. The lithium iron phosphate battery is connected to the bidirectional converter, and the bidirectional converter is connected to the input unit and the output unit.

3. The data center energy storage system according to claim 2, characterized in that: The emergency power supply module includes an uninterruptible power supply and a lead-acid battery. The lead-acid battery is connected to the uninterruptible power supply, and the uninterruptible power supply is connected to the input unit and the output unit.

4. The data center energy storage system according to claim 3, characterized in that: The data center energy storage system also includes a power supply line, an energy storage line and an emergency line. The power supply line is provided with a first mains power input terminal and a second mains power input terminal. The energy storage module is arranged on the energy storage line, and the emergency power supply module is arranged on the emergency line. The power supply line is connected to the load through the energy storage line and the emergency line.

5. The data center energy storage system according to claim 4, characterized in that: The first AC power input terminal is connected to the transformer through a first connecting circuit, the transformer is connected to the energy storage circuit and the emergency circuit, the second AC power input terminal is connected to the first connecting circuit through a second connecting circuit, the execution module includes a first circuit breaker and a second circuit breaker, the first circuit breaker is arranged on the second connecting circuit, the second circuit breaker is arranged on the first connecting circuit, and the second circuit breaker is arranged between the connection point between the second connecting circuit and the first connecting circuit and the transformer, the first circuit breaker and the second circuit breaker, the first AC power input terminal, and the second AC power input terminal are all connected to the control module.

6. The data center energy storage system according to claim 5, characterized in that: The execution module includes a third circuit breaker and a sixth circuit breaker, the uninterruptible power supply is arranged between the third circuit breaker and the sixth circuit breaker, and the third circuit breaker, the sixth circuit breaker and the uninterruptible power supply are all connected to the control module.

7. The data center energy storage system according to claim 5, characterized in that: The execution module includes a fourth circuit breaker and a fifth circuit breaker, the bidirectional converter is arranged between the fourth circuit breaker and the fifth circuit breaker, and the fourth circuit breaker, the fifth circuit breaker and the bidirectional converter are all connected to the control module.

8. The data center energy storage system according to claim 6, characterized in that: The second circuit breaker and the third circuit breaker are normally closed.

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