CN206807115U - A kind of data center's electric power system based on super capacitor energy-storage - Google Patents

Abstract

The utility model discloses a kind of data center's electric power system based on super capacitor energy-storage, including duplex feeding power supply, ATS switching switch, UPS uninterrupted power sources, super capacitor, battery charger and several racks；Rectification circuit and inverter circuit are provided with UPS uninterrupted power sources, PDU modules are provided with rack；Duplex feeding power supply switches switch access UPS uninterrupted power sources by ATS；UPS uninterrupted power sources by the rectified circuit rectifies of the power supply of access be DC voltage after, all the way through inverter circuit inversion be alternating voltage input to the PDU modules of each rack, another way through battery charger give super capacitor charge；Inverter circuit inversion of the power supply through UPS uninterrupted power sources of super capacitor output inputs to the PDU modules of each rack for alternating voltage.The system saves data center's distribution system space-consuming, improves data center's power supply reliability, plays a part of safeguards system powered stable, provides Emergency Power, improves data center's reliability of operation.

Description

A data center power supply system based on supercapacitor energy storage

technical field

The utility model relates to the field of data center power supply, in particular to a data center power supply system based on super capacitor energy storage.

Background technique

With the large-scale construction of data center technology, the importance of the data center power distribution system is becoming more and more prominent. Any modern IT equipment is inseparable from the power distribution system. The equipment provides a stable and reliable power supply system. The power supply and distribution system is like the heart-blood system of the human body for the entire data center system, and safety and reliability are the main issues of the data center power supply system.

In order to ensure the safety and reliability of the power supply and distribution system of the data center, the traditional data center uses a UPS with a battery. The UPS ensures the safety of the power supply, and the battery ensures the reliability of the power supply. However, the battery itself has many defects, such as the low energy density of ordinary lead-acid batteries, poor high power capacity, hydrogen gas will be generated during charging and discharging, the electrolyte is acidic, it will corrode metals, and water needs to be added frequently.

Contents of the invention

In order to solve the above problems, the utility model provides a data center power supply system based on supercapacitor energy storage.

The technical solution of the utility model is: a data center power supply system based on supercapacitor energy storage, including two-way power supply, ATS switching switch, UPS uninterruptible power supply, supercapacitor, battery charger and several cabinets;

The UPS uninterruptible power supply is provided with a rectifier circuit and an inverter circuit, and the cabinet is provided with a PDU module;

The two-way power supply is connected to the UPS uninterruptible power supply through the ATS switch; the UPS uninterruptible power supply rectifies the connected power supply into a DC voltage through a rectifier circuit, and one way is converted into an AC voltage by an inverter circuit and input to each cabinet. The PDU module and the other path charge the supercapacitor through the battery charger; the power output by the supercapacitor is converted into an AC voltage by the inverter circuit of the UPS uninterruptible power supply and input to the PDU module of each cabinet.

Further, the two power supply sources supply power to two commercial power sources or one commercial power source and one oil generator.

Further, the battery charger includes: a bidirectional DC/DC converter, a voltage detection circuit, a drive circuit, a charge controller, a current detection circuit, and a current protection circuit;

The output terminals of the rectifier circuit of the UPS uninterruptible power supply are respectively connected to the input terminals of the bidirectional DC/DC converter and the input terminal of the voltage detection circuit, and the output terminals of the voltage detection circuit are connected to the input terminals of the charging controller, and the bidirectional DC/DC The output terminal of the converter is respectively connected to the input terminal of the current detection circuit and the super capacitor, the output terminal of the current detection circuit is connected to the input terminal of the charging controller through the current protection circuit, and the output terminal of the charging controller is connected to the bidirectional DC/DC through the driving circuit. the drive side of the converter.

Further, the drive circuit uses an IGBT chip.

Further, the battery charger also includes a drive protection circuit;

The drive protection circuit includes: MOS transistors M1-M3, triode Q1, resistors R1-R2, comparator U1; MOS transistors M1-M2 are n-channel MOS transistors, and MOS transistor M3 is a p-channel MOS transistor;

The drains of MOS transistor M1 and MOS transistor M2 are connected to the power supply voltage, the gates of MOS transistor M1 and MOS transistor M2 are connected to the reference voltage, the source of MOS transistor M1 is connected to the collector of transistor Q1, and the base and emitter of transistor Q1 are grounded , the node between the source of the MOS transistor M1 and the collector of the triode Q1 is connected to pin 1 of the comparator U1, the source of the MOS transistor M2 is grounded through the series connected resistor R1 and resistor R2, and the source of the MOS transistor M2 is connected to the resistor R1 The node between them is connected to pin 2 of comparator U1, the drain and source of MOS tube M3 are respectively connected to both ends of resistor R2, the gate of MOS tube M3 is connected to pin 3 of comparator U1, and pin 3 of comparator U1 is connected to Driver circuit connection.

Further, the charging controller is a DSP controller.

The data center power supply system based on supercapacitor energy storage provided by the utility model adopts supercapacitors as energy storage components. Supercapacitors have high power density, short charging and discharging time (can be charged with large current), long cycle life and wide operating temperature range. , maintenance-free, sealable and other advantages, overcome the defects of using batteries in the existing technology, and then this system can reduce the construction, operation and maintenance costs of the data center, save the space occupied by the power distribution system of the data center, improve the reliability of the power supply of the data center, and play a role To ensure the stable power supply of the system and provide emergency power supply, it improves the reliability of the data center operation.

Description of drawings

Fig. 1 is a schematic diagram of the structural principle of a specific embodiment of the utility model.

Fig. 2 is a block diagram of the battery charger circuit of the specific embodiment of the utility model.

Fig. 3 is a schematic diagram of a driving protection circuit of a specific embodiment of the present invention.

In the figure, 1-ATS switch, 2-supercapacitor, 3-battery charger, 4-cabinet, 5-bidirectional DC/DC converter, 6-voltage detection circuit, 7-drive circuit, 8-drive protection circuit, 9-current detection circuit, 10-current protection circuit, 11-charge controller, 12-DPS uninterruptible power supply.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following examples are explanations of the utility model, but the utility model is not limited to the following embodiments.

As shown in Figure 1, the data center power supply system based on supercapacitor energy storage provided by the utility model includes two-way power supply, ATS switch 1, UPS uninterruptible power supply 12, supercapacitor 2, battery charger 3 and several Cabinet 4. The two-way power supply supplies power for two roads of commercial power or one road of commercial power and one road of oil generator.

The UPS uninterruptible power supply 12 is provided with a rectification circuit and an inverter circuit, and the cabinet 4 is provided with a PDU module (power distribution unit). The two-way power supply is connected to the UPS uninterruptible power supply 12 through the ATS switch 1; the UPS uninterruptible power supply 12 rectifies the connected power supply into a DC voltage through a rectification circuit, and one way is converted into an AC voltage by an inverter circuit and input to each cabinet 4 of the PDU module, the other way through the battery charger 3 to charge the super capacitor 2. When the power supply is cut off, the supercapacitor 2 discharges, and the power output by the supercapacitor 2 is converted into an AC voltage by the inverter circuit of the UPS 12 and input to the PDU modules of each cabinet 4 .

As shown in FIG. 2 , the battery charger 3 includes a bidirectional DC/DC converter 5 , a voltage detection circuit 6 , a drive circuit 7 , a charge controller 11 , a current detection circuit 9 , and a current protection circuit 10 .

The output end of the rectifier circuit of UPS power supply uninterruptible power supply 12 is respectively connected with the input end of bidirectional DC/DC converter 5, the input end of voltage detection circuit 6, and the output end of voltage detection circuit 6 is connected with the input end of charging controller 11 The output end of the bidirectional DC/DC converter 5 is respectively connected to the input end of the current detection circuit 9 and the supercapacitor 2, and the output end of the current detection circuit 9 is connected to the input end of the charge controller 11 through the current protection circuit 10, and the charge controller The output end of 11 is connected to the driving end of the bidirectional DC/DC converter 5 through the driving circuit 7 . The charging controller 11 can adopt a DSP controller.

In this embodiment, the drive circuit 7 uses an IGBT chip. Since the current flowing through the IGBT chip is very large, the temperature of the chip increases and the service life of the chip is reduced. A drive protection circuit 8 is therefore also provided.

As shown in Figure 3, the drive protection circuit 8 includes: MOS transistors M1-M3, triode Q1, resistors R1-R2, comparator U1; MOS transistors M1-M2 are n-channel MOS transistors, and MOS transistor M3 is a p-channel MOS transistor Tube.

The drains of MOS transistor M1 and MOS transistor M2 are connected to the power supply voltage, the gates of MOS transistor M1 and MOS transistor M2 are connected to the reference voltage, the source of MOS transistor M1 is connected to the collector of transistor Q1, and the base and emitter of transistor Q1 are grounded , the node between the source of the MOS transistor M1 and the collector of the triode Q1 is connected to pin 1 of the comparator U1, the source of the MOS transistor M2 is grounded through the series connected resistor R1 and resistor R2, and the source of the MOS transistor M2 is connected to the resistor R1 The node between them is connected to pin 2 of comparator U1, the drain and source of MOS tube M3 are respectively connected to both ends of resistor R2, the gate of MOS tube M3 is connected to pin 3 of comparator U1, and pin 3 of comparator U1 is connected to The drive circuit 7 is connected.

In normal operation, the voltage of pin 1 of the comparator U1 is higher than that of pin 2, and the circuit outputs a low level. Transistor Q1 detects the temperature. As the temperature rises, the voltage of pin 1 of comparator U1 gradually decreases. When the voltage of pin 1 of comparator U1 drops to less than the voltage of pin 2, comparator U1 outputs a high level to turn off the IGBT chip. , so as to play the role of overheating protection.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (6)

1. A data center power supply system based on supercapacitor energy storage, characterized in that it comprises two power supplies, an ATS switch, an UPS uninterruptible power supply, a supercapacitor, a battery charger and several cabinets; The UPS uninterruptible power supply is provided with a rectifier circuit and an inverter circuit, and the cabinet is provided with a PDU module; The two-way power supply is connected to the UPS uninterruptible power supply through the ATS switch; the UPS uninterruptible power supply rectifies the connected power supply into a DC voltage through a rectifier circuit, and one way is converted into an AC voltage by an inverter circuit and input to each cabinet. The PDU module and the other path charge the supercapacitor through the battery charger; the power output by the supercapacitor is converted into an AC voltage by the inverter circuit of the UPS uninterruptible power supply and input to the PDU module of each cabinet. 2. The data center power supply system based on supercapacitor energy storage according to claim 1, characterized in that, the two power supply sources are two commercial power sources or one commercial power source and one diesel engine power supply. 3. The data center power supply system based on supercapacitor energy storage according to claim 1 or 2, wherein the battery charger comprises: a bidirectional DC/DC converter, a voltage detection circuit, a drive circuit, and a charging controller , current detection circuit, current protection circuit; The output terminals of the rectifier circuit of the UPS uninterruptible power supply are respectively connected to the input terminals of the bidirectional DC/DC converter and the input terminal of the voltage detection circuit, and the output terminals of the voltage detection circuit are connected to the input terminals of the charging controller, and the bidirectional DC/DC The output terminal of the converter is respectively connected to the input terminal of the current detection circuit and the super capacitor, the output terminal of the current detection circuit is connected to the input terminal of the charging controller through the current protection circuit, and the output terminal of the charging controller is connected to the bidirectional DC/DC through the driving circuit. the drive side of the converter. 4. The data center power supply system based on supercapacitor energy storage according to claim 3, wherein the driving circuit adopts an IGBT chip. 5. The data center power supply system based on supercapacitor energy storage according to claim 4, wherein the battery charger further includes a drive protection circuit; The drive protection circuit includes: MOS transistors M1-M3, triode Q1, resistors R1-R2, comparator U1; MOS transistors M1-M2 are n-channel MOS transistors, and MOS transistor M3 is a p-channel MOS transistor; The drains of MOS transistor M1 and MOS transistor M2 are connected to the power supply voltage, the gates of MOS transistor M1 and MOS transistor M2 are connected to the reference voltage, the source of MOS transistor M1 is connected to the collector of transistor Q1, and the base and emitter of transistor Q1 are grounded , the node between the source of the MOS transistor M1 and the collector of the triode Q1 is connected to pin 1 of the comparator U1, the source of the MOS transistor M2 is grounded through the series connected resistor R1 and resistor R2, and the source of the MOS transistor M2 is connected to the resistor R1 The node between them is connected to pin 2 of comparator U1, the drain and source of MOS tube M3 are respectively connected to both ends of resistor R2, the gate of MOS tube M3 is connected to pin 3 of comparator U1, and pin 3 of comparator U1 is connected to Driver circuit connection. 6. The data center power supply system based on supercapacitor energy storage according to claim 4 or 5, wherein the charging controller is a DSP controller.