Energy storage type power supply with uninterrupted conversion function

Abstract

The utility model discloses an energy storage type power supply with an uninterruptible conversion function, which is provided with a charging interface, an output interface, an uninterruptible conversion input interface and a battery box, the charging interface is connected with the battery box, the battery box provides electric energy for an inverter, the output end of the inverter is connected with the output interface, and the output interface is connected with the uninterruptible conversion input interface. The uninterrupted conversion input interface is connected with the output interface, the uninterrupted conversion input interface is connected with the standby energy storage type power supply, and the energy storage type power supply has the advantages that the structure is simple, the uninterrupted conversion of the two energy storage type power supplies is realized, the working efficiency is improved, the working reliability is improved, and the like.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically an energy storage power supply with uninterrupted conversion function. Background Technology

[0002] When aircraft are powered on for inspection, startup, or maintenance, they require an external power source. Different aircraft models use different power supplies, commonly including 400Hz 115V / 200V AC, 28V low-voltage DC, and 270V high-voltage DC. Some military aircraft require 270V high-voltage DC power, while civilian aircraft require 400Hz 115V / 200V AC or 28V DC. If the external power supply suddenly fails during operation, it can cause the loss of aircraft parameters and data, and even damage to certain equipment. When the external power supply is insufficient and a low-power alarm is triggered, to avoid damage to onboard equipment, the aircraft's power supply usually has to be stopped, and a new power source replaced, impacting efficiency and causing significant inconvenience. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an energy storage power supply with uninterrupted switching function that has a simple structure, realizes uninterrupted switching between two energy storage power supplies, improves working efficiency and reliability.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An energy storage power supply with uninterrupted switching function is characterized in that: it is provided with a charging interface, an output interface, an uninterrupted switching input interface and a battery box, the charging interface is connected to the battery box, the battery box provides power to the inverter, the output terminal of the inverter is connected to the output interface, the uninterrupted switching input interface is connected to the output interface, and the uninterrupted switching input interface is connected to the backup energy storage power supply.

[0006] By setting up an uninterrupted switching input interface, the two power supplies that power the aircraft can achieve uninterrupted switching, thereby improving power reliability, ensuring the efficiency of aircraft maintenance, and effectively preventing the loss of aircraft parameters and data due to power outages during maintenance.

[0007] The inverter of this invention has its output terminal connected to the output interface via an output contactor, and the uninterruptible switching input interface is connected to the output interface via an uninterruptible switching input contactor; the on / off state of the control contactor is set.

[0008] The charging interface of this utility model includes a national standard DC charging interface and a three-phase AC charging interface. The national standard DC charging interface is connected to the battery box via a high-voltage distribution box, and the three-phase AC charging interface is connected to a charger. The charger is connected to the battery box via a high-voltage distribution box. It can realize AC and DC charging of the battery box.

[0009] The positive terminal of the national standard DC charging interface of this utility model is connected to the positive terminal of the battery box via a contactor in the high-voltage distribution box, and the negative terminal of the national standard DC charging interface is electrically connected to the negative terminal of the battery box.

[0010] The positive terminal of the charger is connected to the positive terminal of the battery box via a contactor in the high-voltage distribution box, and the negative terminal of the charger is connected to the negative terminal of the battery box.

[0011] The inverter of this utility model includes a power module and an intermediate frequency transformer. The battery box is connected to the input terminal of the power module via a high-voltage distribution box. The output terminal of the power module is connected to the input terminal of the intermediate frequency transformer. The output terminal of the intermediate frequency transformer is connected to an output interface.

[0012] The positive terminal of the battery box in this invention is connected to the positive terminal of the power module via a contactor in the high-voltage distribution box, and the negative terminal of the battery box is connected to the negative terminal of the power module via a contactor in the high-voltage distribution box.

[0013] The high-voltage distribution box and the power module described in this utility model are connected by an input fuse.

[0014] The output interface of this utility model includes an intermediate frequency output interface and a DC output interface. One output terminal of the intermediate frequency transformer is connected to the intermediate frequency output interface via an AC output contactor, and the other output terminal is connected to the DC output interface via a DC input contactor and a rectifier module in sequence. It can realize DC and AC output to meet different power supply needs.

[0015] The uninterruptible input conversion interface of this utility model is connected to the intermediate frequency output interface via an uninterruptible input conversion contactor.

[0016] This utility model also includes an interface module, a processor module, an operation panel, and a display. The inverter, the controller of the high-voltage distribution box, the processor module, and the rectifier module are respectively connected to the interface module.

[0017] The processor module is connected to the display and the operation panel.

[0018] The beneficial effects of this utility model are as follows: by setting an uninterrupted switching input interface, the two power supplies that supply power to the aircraft can achieve uninterrupted switching function, improve the reliability of power supply, ensure the efficiency of aircraft maintenance, and effectively prevent the loss of aircraft parameters and data due to power outages during maintenance. Attached Figure Description

[0019] Figure 1 This is a block diagram of the electrical principle of the energy storage power supply of this utility model.

[0020] Figure 2 This is the electrical schematic diagram of the energy storage power supply of this utility model.

[0021] Figure 3 This is a simplified diagram of the energy storage power supply output control of this utility model.

[0022] Attached label: Three-phase AC charging interface - X1, National standard DC charging interface - X2, Uninterruptible input converter interface - X3, Intermediate frequency output interface - X4, DC output interface - X5, High voltage distribution box - A1, Power module - A3, Interface module - A5, Display - A7, Processor module - A8, Inverter - A17, Rectifier module - A18, Operation panel - A19, Charger - A31, Input fuse - F1, Intermediate frequency transformer - T2, AC output contactor - K1, DC input contactor - K6, Uninterruptible input converter contactor - K7, Contactor - K11 / K12 / K13 / K14. Detailed Implementation

[0023] The present invention will now be described in conjunction with the accompanying drawings and embodiments.

[0024] As shown in the attached figure, an energy storage power supply A with uninterrupted switching function is provided with a charging interface, an output interface, an uninterrupted switching input interface X3, and a battery box. The charging interface is connected to the battery box, and the battery box provides power to the inverter A17. The output terminal of the inverter A17 is connected to the output interface via an output contactor. The uninterrupted switching input interface X3 is connected to the output interface via an uninterrupted switching input contactor K7. The uninterrupted switching input interface X3 is connected to a backup energy storage power supply B.

[0025] By setting up an uninterrupted switching input interface, the two power supplies that power the aircraft can achieve uninterrupted switching, thereby improving power reliability, ensuring the efficiency of aircraft maintenance, and effectively preventing the loss of aircraft parameters and data due to power outages during maintenance.

[0026] In this embodiment, the charging interface includes a national standard DC charging interface X2 and a three-phase AC charging interface X1. The positive terminal of the national standard DC charging interface X2 is connected to the positive terminal of the battery box via a contactor K11 in the high-voltage distribution box A1, and the negative terminal of the national standard DC charging interface X2 is electrically connected to the negative terminal of the battery box.

[0027] The positive terminal of the three-phase AC charging interface X1 is connected to the positive terminal of the charger A31, and the negative terminal of the three-phase AC charging interface X1 is connected to the negative terminal of the charger A31. The positive terminal of the charger A31 is connected to the positive terminal of the battery box via the contactor K12 in the high-voltage distribution box A1, and the negative terminal of the charger A31 is connected to the negative terminal of the battery box; this enables AC and DC charging of the battery box.

[0028] In this embodiment, the inverter A17 includes a power module A3 and an intermediate frequency transformer T2. The positive terminal of the battery box is connected to the positive terminal of the power module A3 via a contactor K13 and an input fuse F1 in the high-voltage distribution box A1. The negative terminal of the battery box is connected to the negative terminal of the power module A3 via a contactor K14 in the high-voltage distribution box A1.

[0029] The output terminal of the power module A3 is connected to the input terminal of the intermediate frequency transformer T2;

[0030] The output terminal of the intermediate frequency transformer is connected to the output interface, which includes an intermediate frequency output interface X4 and a DC output interface X5. One output terminal of the intermediate frequency transformer T2 is connected to the intermediate frequency output interface X4 via an AC output contactor K1, and the other output terminal is connected to the DC output interface X5 via a DC input contactor K6 and a rectifier module A18 to convert AC to DC. This enables both DC and AC output to meet different power supply requirements.

[0031] In this embodiment, the intermediate frequency output interface X4 outputs 400Hz, 115 / 200V three-phase four-wire intermediate frequency AC power, and the DC output interface X5 outputs 28V DC power.

[0032] The uninterruptible input conversion interface X3 is connected to the intermediate frequency output interface X4 via the uninterruptible input conversion contactor K7.

[0033] This embodiment also includes an interface module A5, a processor module A8, an operation panel A19, and a display A7. The inverter A17, the controller of the high-voltage distribution box A1, the processor module A8, and the rectifier module A18 are respectively connected to the interface module A5. The processor module A8 is connected to the display A7 and the operation panel A19. The processor module can realize uninterrupted switching control, and the operation panel and display can perform operations such as fault display, parameter query, battery charging and discharging information query, power information query, and power outage.

[0034] Information sampled by inverter A17, high-voltage distribution box A1, and rectifier module A18 is transmitted to processor module A8 via interface module A5.

[0035] In this embodiment, as shown Figure 3As shown, at the downstream end of the uninterruptible input changer contactor K7, the output voltage of the backup energy storage power supply B is sampled and fed back to the processor module A8 to complete the sampling and parallel operation of the backup energy storage power supply B; the output voltage of the intermediate frequency output interface X4 is sampled and fed back to the processor module A8 to realize the sampling of the output voltage; the input current of the rectifier module is sampled and fed back to the processor module A8 to realize the overload protection of the DC output; the DC output of the rectifier module is sampled and fed back to the processor module A8 to realize the overvoltage and undervoltage protection of the DC output voltage.

[0036] When using this utility model:

[0037] 1. When the energy storage power supply A needs to be charged, the processor module A8 controls the contactor K12 to close, and the three-phase mains power is supplied to the battery box through the three-phase mains charging interface X1 and the charger A31. Alternatively, the processor module A8 controls the contactor K11 to close, and the battery box is supplied with DC power through the national standard DC charging interface X2. At this time, the contactors K13 and K14 are in the open state. When the energy storage power supply A is fully charged, the processor module A8 controls the contactors K12 and K11 to open.

[0038] 2. When a 400Hz 115V / 200V AC power supply is required for the aircraft, connect the intermediate frequency output interface X4 to the equipment. The processor module A8 controls contactors K13, K14, and AC output contactor K1 to close, and the battery box supplies power to the aircraft via inverter A17, AC output contactor K1, and intermediate frequency output interface X4. When a 28V DC power supply is required for the aircraft, connect the DC output interface X5 to the equipment. The processor module A8 controls contactors K13, K14, and DC input contactor K6 to close, and the battery box supplies power to the aircraft via inverter A17, DC input contactor K6, rectifier module A18, and DC output interface X5.

[0039] 3. When the energy stored in the battery box is lower than the set value, the power information will be displayed on the operation panel and the display and an alarm will be triggered. Connect the plug of the backup energy storage power supply B to the uninterruptible power supply input interface X3 to start the backup energy storage power supply B and power the uninterruptible power supply input interface X3. The energy storage power supply A will detect the energy on the uninterruptible power supply input interface X3 through the processor module and adjust the output voltage and phase of the energy storage power supply A to synchronize with the backup energy storage power supply B. The energy storage power supply A will connect the uninterruptible power supply input contactor K7 to realize the parallel connection of the energy storage power supply A and the backup energy storage power supply B.

[0040] 4. When the energy storage power supply A disconnects the AC output contactor K1, the backup energy storage power supply B continues to supply power to the aircraft, thus completing the uninterruptible power supply conversion.

Claims

1. An energy storage power supply with uninterrupted transition, characterized by: It is provided with a charging interface, an output interface, an uninterrupted conversion input interface and a battery box, the charging interface is connected with the battery box, the battery box provides power for the inverter, the output end of the inverter is connected with the output interface, the uninterrupted conversion input interface is connected with the output interface, and the uninterrupted conversion input interface is connected with the standby energy storage power supply.

2. The energy storage power supply with uninterrupted transition function according to claim 1, characterized in that: The output end of the inverter is connected with the output interface through an output contactor, and the uninterrupted conversion input interface is connected with the output interface through an uninterrupted conversion input contactor.

3. The energy storage power supply with uninterrupted transition function according to claim 1 or 2, characterized in that: The charging interface includes a national standard DC charging interface and a three-phase mains charging interface, the national standard DC charging interface is connected with the battery box through a high-voltage distribution box, the three-phase mains charging interface is connected with a charging machine, and the charging machine is connected with the battery box through the high-voltage distribution box.

4. The energy storage power supply with uninterrupted transition function according to claim 3, characterized in that: The positive electrode of the national standard DC charging interface is connected with the positive electrode of the battery box through a contactor in the high-voltage distribution box, and the negative electrode of the national standard DC charging interface is connected with the negative electrode of the battery box. The positive electrode of the charging machine is connected with the positive electrode of the battery box through a contactor in the high-voltage distribution box, and the negative electrode of the charging machine is connected with the negative electrode of the battery box.

5. The energy storage power supply with uninterrupted transition function according to claim 1 or 2 or 4, characterized in that: The inverter includes a power module and a medium-frequency transformer, the battery box is connected with the input end of the power module through the high-voltage distribution box, the output end of the power module is connected with the input end of the medium-frequency transformer, and the output end of the medium-frequency transformer is connected with the output interface.

6. The energy storage power supply with seamless transition function according to claim 5, characterized in that: The positive electrode of the battery box is connected with the positive electrode of the power module through a contactor in the high-voltage distribution box, and the negative electrode of the battery box is connected with the negative electrode of the power module through a contactor in the high-voltage distribution box.

7. The energy storage power supply with seamless transition function according to claim 6, characterized in that: An input fuse is connected between the high-voltage distribution box and the power module.

8. The energy storage power supply with seamless transition function according to claim 5, characterized in that: The output interface includes a medium-frequency output interface and a DC output interface, one way of the output end of the medium-frequency transformer is connected with the medium-frequency output interface through an alternating-current output contactor, and the other way is sequentially connected with the DC output interface through a DC input contactor and a rectifier module.

9. The energy storage power supply with seamless transition function according to claim 8, characterized in that: The uninterrupted conversion input interface is connected with the medium-frequency output interface through an uninterrupted conversion input contactor.

10. An energy storage power supply with seamless transition function according to claim 8 or 9, characterized in that: An interface module, a processor module, an operation panel and a display are further included, the controller of the inverter and the high-voltage distribution box, the processor module and the rectifier module are connected with the interface module respectively. The processor module is connected with the display and the operation panel.

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