Multi-path composite power supply control system

Abstract

The utility model discloses a multipath composite power supply control system, comprising a controller, a multi-power supply module, a power supply switching module, a communication module and a power utilization module, the multi-power supply module, the power supply switching module, the communication module and the power utilization module are connected in sequence, and the controller is connected with the power supply switching module; the multi-power-supply module comprises a plurality of different types of power supplies, and the controller is used for controlling the power supply switching module to perform power supply switching according to the state of each power supply in the multi-power-supply module so as to ensure that the power utilization module is always in a power-on state; a conversion module is arranged between the power supply switching module and the communication module, and the conversion module is used for converting different current and voltage into current and voltage matched with the communication module, so that normal communication of the communication module is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrochemical energy storage system technical field, concretely relates to a kind of multi-path composite power control system. BACKGROUND

[0002] With the rapid increase of electrochemical energy storage system in energy storage industry, communication module, battery management system BMS, energy management system EMS, fire suppression system are more and more applied in electrochemical energy storage system. As the core component of electrochemical energy storage system, communication module undertakes the important work of safety detection and communication control of PACK battery pack, energy storage converter PCS, high-voltage box and other electrical equipment; as an important measure to improve the efficiency of battery charging and discharging, battery management system BMS and energy management system EMS undertake the work of battery health management and energy scheduling; as a safety precaution of energy storage system, fire suppression system undertakes the work of fire alarm and fire extinguishing.

[0003] At present, communication module, battery management system BMS, energy management system EMS and fire suppression system generally use station transformer in energy storage system to provide AC380V / AC220V power supply, and the source is single. If power supply fails or fails, these devices or systems will not be able to continue communication control and protection. The cost of station transformer accounts for a small proportion in large energy storage system, and accounts for a high proportion in small energy storage system of industry and commerce, which increases the investment cost of users. With the development of electrochemical energy storage system from wind power generation and photovoltaic power generation industry to industrial and commercial field, new requirements are put forward for the redundancy and reliability of control power supply.

[0004] Therefore, it is necessary to provide a multi-path composite power control system to solve the problems mentioned in the background. UTILITY MODEL CONTENT

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a multi-path composite power control system, comprising: a controller, a plurality of power modules, a power switching module, a communication module and a power module, the plurality of power modules, the power switching module, the communication module and the power module are connected in sequence, and the controller is connected with the power switching module;

[0006] The plurality of power modules include several different types of power sources, and the controller is used to control the power switching module to switch power supply according to the state of each power source in the plurality of power modules, so as to ensure that the power module is always in power-on state;

[0007] A conversion module is arranged between the power switching module and the communication module, and is used to convert different current voltages into current voltages suitable for the communication module, so as to facilitate normal communication of the communication module and communication control of the power consumption module.

[0008] Preferably, the controller comprises a monitoring module, an adjusting module and a transmission module, the monitoring module is arranged in the multi-power module and is used for real-time monitoring of the state of each power supply in the multi-power module;

[0009] The transmission module is used for transmitting the state data of each power supply monitored by the monitoring module to the adjusting module, and the adjusting module controls the power switching module to switch power supply.

[0010] Preferably, the multi-power module comprises a direct-current power supply unit and an alternating-current power supply unit.

[0011] Preferably, the direct-current power supply unit comprises a direct-current battery pack, and the alternating-current power supply unit comprises an alternating-current power grid and an alternating-current industrial control screen UPS.

[0012] Preferably, the conversion module comprises an AC-DC device and a DC-DC device.

[0013] The input end of the AC-DC device is connected with the alternating-current power supply unit, and the output end of the AC-DC device is connected with the communication module.

[0014] The input end of the DC-DC device is connected with the direct-current power supply unit, and the output end of the DC-DC device is connected with the communication module.

[0015] Preferably, the power consumption module comprises an energy storage converter, a battery management system, an energy management system, a PACK battery pack, a high-voltage box, a fire-fighting electrical equipment or a water machine electrical equipment.

[0016] Preferably, the monitoring module comprises a sensor unit, and the sensor unit comprises a current sensor, a voltage sensor, a power-off sensor and a power sensor.

[0017] Compared with the prior art, the utility model provides a kind of multi-path composite power supply control system, with the following beneficial effects:

[0018] 1, the utility model uses multi-power module to replace station transformer, reduces floor area and power supply cost;

[0019] 2, the utility model in prior art power supply mode, proposes multiple switchable power supply mode, changes the low reliability of single power supply, realizes multiple control power supply mode, improves the safety and reliability of system, provides solution train of thought for subsequent similar scene and same type equipment expansion. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a kind of multi-path composite power supply control system overall framework structure schematic diagram;

[0021] Fig. 2 It is a kind of multi-path composite power supply control system detailed framework structure schematic diagram;

[0022] Fig. 3 It is a kind of multi-path composite power supply control system controller framework structure schematic diagram.

[0023] In the figure: 1, controller;2, multi-power module;3, power switching module;4, conversion module;5, communication module;6, power module;7, DC power supply unit;8, AC power supply unit;9, AC-DC device;10, DC-DC device;11, monitoring module;12, adjusting module;13, transmission module. DETAILED DESCRIPTION

[0024] Please refer to Figs. 1-3 The utility model provides a kind of multi-path composite power supply control system, comprising: controller 1, multi-power module 2, power switching module 3, communication module 5 and power module 6, the multi-power module 2, power switching module 3, communication module 5 and power module 6 are sequentially connected, the controller 1 is connected with the power switching module 3;

[0025] The multi-power module 2 includes several different types of power supply, and the controller 1 is used to control the power switching module 3 to switch power supply according to the state of each power supply in the multi-power module 2, so as to ensure that the power module 6 is always in a powered state;

[0026] The power switching module 3 and the communication module 5 are provided with a conversion module 4, and the conversion module 4 is used to convert different current and voltage into current and voltage suitable for the communication module 5, so as to facilitate normal communication of the communication module 5 and communication control of the power module 6.

[0027] Among them, the communication module 5 is a communication circuit board.

[0028] Further, the controller 1 includes a monitoring module 11, an adjusting module 12 and a transmission module 13, the monitoring module 11 is arranged in the multi-power module 2, and is used for real-time monitoring of the state of each power supply in the multi-power module 2;

[0029] The transmission module 13 is used for transmitting the state data of each power supply monitored by the monitoring module 11 to the adjusting module 12, and the adjusting module 12 controls the power switching module 3 to switch power supply.

[0030] Specifically, the power switching module 3 includes a plurality of relays or circuit breakers connected with each power source in the multi-power module 2; the adjustment module 12 is a power switching chip; when switching the power source, the adjustment module 12 controls the on-off of the relays or circuit breakers according to the real-time state information of each power source, thereby realizing the switching of different power sources.

[0031] Further, the multi-power module 2 includes a direct current power supply unit 7 and an alternating current power supply unit 8.

[0032] Further, the direct current power supply unit 7 includes a direct current battery pack; the alternating current power supply unit 8 includes an alternating current power grid and an alternating current industrial control screen UPS.

[0033] Further, the conversion module 4 includes an AC-DC device 9 and a DC-DC device 10.

[0034] The input end of the AC-DC device 9 is connected with the alternating current power supply unit 8, and the output end of the AC-DC device 9 is connected with the communication module 5, for converting the current type and current voltage.

[0035] The input end of the DC-DC device 10 is connected with the direct current power supply unit 7, and the output end of the DC-DC device 10 is connected with the communication module 5. For converting the current voltage.

[0036] Specifically, the controller 1 and the power switching module 3 constitute a control power switching device or a power source non-disturbance fast switching device.

[0037] The direct current battery pack includes a battery cluster and a direct current battery group, and each power source conversion specific data is:

[0038] The direct current battery group or battery cluster supplies power, converts the direct current high voltage (DC 1000-1500V) into DC 24V through the DC-DC device 10;

[0039] The alternating current power grid supplies power, provides AC 220V for the power module, and then converts it into DC 24V through the AC-DC device 9;

[0040] The alternating current industrial control screen UPS provides AC 220V for the power module, and then converts it into DC 24V through the AC-DC device 9;

[0041] Through the multi-power setting, the station transformer provides power, and through the control and switching of each power source, it is ensured that the communication module 5 has power supply DC 24V in any case, ensuring the continuity of its work; when applied to small energy storage systems in industry and commerce, it is not necessary to configure the station transformer, which not only saves the cost but also reduces the occupation of space.

[0042] The specific power switching control principle is:

[0043] When the DC battery pack works normally and the battery cluster SOC is greater than 10%, the DC battery pack is used to supply DC 24V power for the communication module 5 through the DC-DC device 10;

[0044] When the DC battery pack cannot work normally or the battery cluster SOC is less than 10%, but the AC power grid has power, the AC power grid is used to supply DC 24V power for the communication module 5 through the AC-DC device 9;

[0045] When the DC battery pack cannot work normally or the battery cluster SOC is less than 10%, and the AC power grid loses power, the uninterruptible power supply (UPS) is used to supply DC 24V power for the communication module 5.

[0046] Further, the power consumption module 6 includes an energy storage converter (PCS), a battery management system (BMS), an energy management system (EMS), a PACK battery pack, a high-voltage box, a fire-fighting electrical equipment or a water machine electrical equipment.

[0047] Among them, the control voltage of each system in the power consumption module 6 and the communication module 5 is 24V.

[0048] Further, the monitoring module 11 includes a sensor unit, and the sensor unit includes a current sensor, a voltage sensor, a power-off sensor and a power sensor. Through the setting of each sensor, the running state data of each power supply is monitored in real time, which facilitates accurate regulation and switching of the power supply and ensures that the communication module 5 can work normally.

[0049] It should be noted that the battery cluster SCO and whether the battery works normally are obtained by the above-mentioned sensor unit, which is the prior art, such as a control power switching device or a power supply undisturbed fast switching device.

[0050] In specific implementation, the communication module is powered by the multi-power module, the power supply is converted by the conversion module, the current and voltage thereof are adapted to the communication module, the communication module is connected to the power consumption module to ensure normal communication thereof; when the power supply has a problem, the power switching module switches the power supply to ensure that the communication module always has power, thereby ensuring that the power consumption module always communicates normally.

[0051] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A multiplexed composite power supply control system, characterized by, The utility model relates to a multi-power supply module (2), a power supply switching module (3), a communication module (5) and a power consumption module (6) are sequentially connected, and the controller (1) is connected with the power supply switching module (3). The controller (1) is used for controlling the power supply switching module (3) to switch power supply according to the state of each power supply in the multi-power supply module (2) to ensure that the power consumption module (6) is always in a power-on state. The conversion module (4) is arranged between the power supply switching module (3) and the communication module (5), and is used for converting different current voltages into current voltages suitable for the communication module (5) to facilitate normal communication of the communication module (5) and communication control of the power consumption module (6). The controller (1) comprises a monitoring module (11), an adjusting module (12) and a transmission module (13), the monitoring module (11) is arranged in the multi-power supply module (2) and is used for monitoring the state of each power supply in the multi-power supply module (2) in real time.

2. A multiplexed power supply control system according to claim 1, wherein, The transmission module (13) is used for transmitting the state data of each power supply monitored by the monitoring module (11) to the adjusting module (12), and the adjusting module (12) controls the power supply switching module (3) to switch power supply. The multi-power supply module (2) comprises a direct-current power supply unit (7) and an alternating-current power supply unit (8).

3. A multiplexed power supply control system according to claim 1, wherein, The direct-current power supply unit (7) comprises a direct-current battery pack, and the alternating-current power supply unit (8) comprises an alternating-current power grid and an alternating-current industrial control screen UPS.

4. A multiplexed power supply control system according to claim 3, wherein, The conversion module (4) comprises an AC-DC device (9) and a DC-DC device (10).

5. A multiplexed power supply control system according to claim 3, wherein, The input end of the AC-DC device (9) is connected with the alternating-current power supply unit (8), and the output end of the AC-DC device (9) is connected with the communication module (5). The input end of the DC-DC device (10) is connected with the direct-current power supply unit (7), and the output end of the DC-DC device (10) is connected with the communication module (5). The power consumption module (6) comprises an energy storage converter, a battery management system, an energy management system, a PACK battery pack, a high-voltage box, a fire-fighting electrical equipment or a water machine electrical equipment.

6. A multiplexed power supply control system according to claim 1, wherein, The monitoring module (11) comprises a sensor unit, and the sensor unit comprises a current sensor, a voltage sensor, a power-off sensor and a power sensor.

7. A multiplexed power supply control system according to claim 2, wherein, ​

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