Power control method of energy storage charging system

Abstract

The invention discloses a power control method for an energy storage charging system, and the method comprises the steps: carrying out the self-inspection of a detection circuit through a self-inspection circuit; the voltage of the battery is detected through the under-voltage detection circuit, and the power-off operation of the main circuit is realized; through the BUCK circuit, the voltage at the two ends of the charging circuit is gradually increased, and the charging efficiency is improved; through the current detection circuit, the detection of the output current of the BUCK circuit is realized, and the closing and delay detection of the BUCK pulse is realized. Through the temperature detection circuit, the temperature of the battery is detected, and the heat dissipation operation is linked. The invention belongs to the technical field of energy storage charging control, and particularly relates to a power control method of an energy storage charging system.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage charging control, and in particular relates to a power control method for an energy storage charging system. Background Art

[0002] After searching, for example, patent number CN116742665B discloses a power control method, device and energy storage charging system for an energy storage charging system, including obtaining charging request information sent by a charging device to be charged to a charging control component through a charging component; determining whether it is necessary to adjust the output power of the charging device according to the charging request information; if it is necessary to adjust the output power of the charging device, outputting a first control signal so that the energy storage device of the energy storage charging system adjusts the charging power or discharging power of the energy storage device to zero according to the first control signal.

[0003] Although the current energy storage charging system can prevent the total load from exceeding the capacity of the transformer and causing reverse current, it cannot achieve real-time monitoring of the battery status and lacks a protection mechanism. Summary of the invention

[0004] The technical problem to be solved by the present invention is that although the existing equipment can prevent the total load from exceeding the capacity of the transformer and the occurrence of reverse current, it cannot realize real-time monitoring of the battery status and lacks a protection mechanism.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a power control method of an energy storage charging system, the steps of which are:

[0006] Step 1: First, perform a self-test on the monitoring circuit through the self-test circuit;

[0007] Step 2: Detect the battery voltage through the undervoltage detection circuit and realize the power-off operation of the main circuit;

[0008] Step 3: Use the BUCK circuit to gradually increase the voltage at both ends of the charging circuit to improve the charging efficiency;

[0009] Step 4: Use the current detection circuit to detect the output current of the BUCK circuit and implement the closing and delay detection of the BUCK pulse;

[0010] Step 5: Detect the temperature of the battery through the temperature detection circuit and link the heat dissipation operation.

[0011] Furthermore, a microprocessor is connected in series between the undervoltage detection circuit and the BUCK circuit, and the microprocessor is respectively connected to the charging circuit switch, the BUCK pulse switch, and the heat dissipation module through wires.

[0012] Furthermore, one end of the self-checking circuit is connected in series with an alarm device 1, one end of the undervoltage detection circuit is connected in series with an alarm device 2, and one end of the heat dissipation module is connected in series with an alarm device 3.

[0013] Furthermore, the current detection circuit is configured to perform delayed detection on the main circuit current.

[0014] Furthermore, the BUCK pulse switch is connected in series to the BUCK circuit to control the input battery voltage of the BUCK circuit and achieve a multi-stage charging effect.

[0015] Furthermore, the self-test circuit includes a monitoring component and a network distribution component, and the monitoring component includes a display screen, a data acquisition and processing module, a device self-test module, a battery management module and a data storage module.

[0016] Furthermore, the distribution network component includes a remote control terminal block, a remote signaling terminal block and a power supply terminal block.

[0017] Furthermore, the power terminal block is connected to the power management module through a wire, the data acquisition and processing module is connected to the remote control terminal block and the remote signal terminal block through wires, one end of the data acquisition and processing module is connected to the zero point, and one end of the data storage module is connected to a data interface through a wire.

[0018] Furthermore, the undervoltage detection circuit, the BUCK circuit, the current detection circuit and the temperature detection circuit form a loop.

[0019] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0020] (1) Through the setting of the self-checking circuit, the circuit self-checking of each detection module and the heat dissipation module is realized to prevent the damage of the system caused by the short circuit of the circuit, and the automatic protection of the monitoring is realized through the self-checking circuit.

[0021] (2) Real-time monitoring of battery status, including voltage, current, temperature, state of charge (SOC) and state of health (SOH), setting of protection mechanisms to prevent overcharging, over-discharging, overheating and short circuit, etc., to realize intelligent functions, adaptive control, predictive maintenance and self-diagnosis.

[0022] (3) Through the linkage setting of the BUCK circuit and the processor, a multi-level charging strategy is implemented, such as constant current charging, constant voltage charging and floating charging stages, and the charging power is adjusted according to the battery SOC to avoid damage to the battery.

[0023] (4) Design redundancy and failover mechanisms to improve system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] Figure 1 A flowchart proposed for the present invention;

[0026] Figure 2 This is the device structure and connection diagram proposed by the present invention.

[0027] In the attached drawings: 1. Self-test circuit, 2. Undervoltage detection circuit, 3. BUCK circuit, 4. Current detection circuit, 5. Temperature detection circuit, 6. Alarm 1, 7. Alarm 2, 8. Alarm 3, 9. Monitoring component, 10. Distribution network component, 11. Display screen, 12. Data acquisition and processing module, 13. Device self-test module, 14. Battery management module, 15. Data storage module, 16. Remote control terminal block, 17. Remote signal terminal block, 18. Power supply terminal block. DETAILED DESCRIPTION

[0028] like Figure 1 As shown, the power control method of the energy storage charging system comprises the following steps:

[0029] Step 1: First, the monitoring circuit is self-checked by the self-checking circuit 1. The monitoring circuit is self-checked before the battery is charged. When the self-checking circuit 1 fails, the alarm 6 sounds an alarm and disconnects the power circuit to protect the charging system.

[0030] Step 2: The voltage of the battery is detected by the undervoltage detection circuit 2, and the power-off operation of the main circuit is realized. Before charging the battery, the battery output voltage is detected. When the battery voltage exceeds the set value, the power circuit is disconnected to prevent the battery from exploding due to overvoltage during battery charging;

[0031] Step 3: Through the BUCK circuit 3, the voltage at both ends of the charging circuit is gradually increased to improve the charging efficiency. During the charging process, the BUCK circuit is used to implement a multi-stage charging strategy, which is divided into three stages: constant current charging, constant voltage charging and floating charging, and the charging power is adjusted to avoid damage to the battery.

[0032] Step 4: Through the current detection circuit 4, the output current of the BUCK circuit 3 is detected, and the closure and delay detection of the BUCK pulse are realized, and the battery is intermittently detected to realize the real-time monitoring of the battery status, current, state of charge and health state (SOH);

[0033] Step 5: The temperature of the battery is detected by the temperature detection circuit 5, and the heat dissipation operation is linked to realize the automatic cooling operation while the temperature is detected, so as to prevent the explosion of the battery caused by the large amount of heat accumulation.

[0034] Among them, a microprocessor is connected in series between the undervoltage detection circuit 2 and the BUCK circuit 3, and the detection microprocessor is connected to the charging circuit switch, the BUCK pulse switch, and the heat dissipation module through wires. An alarm 1 6 is connected in series at one end of the detection self-test circuit 1, an alarm 2 7 is connected in series at one end of the detection undervoltage detection circuit 2, and an alarm 3 8 is connected in series at one end of the detection heat dissipation module. The detection current detection circuit 4 is set to delayed detection of the main circuit current, and the detection BUCK pulse switch is connected in series to the BUCK circuit. The detection undervoltage detection circuit 2, the BUCK circuit 3, the current detection circuit 4 and the temperature detection circuit 5 form a loop.

[0035] like Figure 2 As shown, the self-test circuit 1 includes a monitoring component 9 and a distribution network component 10. The monitoring component 9 includes a display screen 11, a data acquisition and processing module 12, a device self-test module 13, a battery management module 14 and a data storage module 15. The distribution network component 10 includes a remote control terminal block 16, a remote signal terminal block 17 and a power supply terminal block 18.

[0036] Among them, the power terminal block 18 is connected to the power management module 14 through a wire, the data acquisition and processing module 12 is connected to the remote control terminal block 16 and the remote signal terminal block 17 through wires, one end of the data acquisition and processing module 12 is connected to the zero point, and one end of the data storage module 15 is connected to a data interface through a wire.

[0037] During specific use, first, the self-check circuit 1 performs a self-check on the detection circuit. When the detection circuit fails, the alarm 1 6 issues a fault alarm. When the detection circuit is normal, the voltage of the battery is detected through the undervoltage detection circuit 2. When overvoltage is detected, the microprocessor disconnects the charging circuit and issues an overvoltage reminder through the alarm 2 7. When undervoltage is detected, a multi-stage charging strategy is implemented through the BUCK circuit 3, including constant current charging, constant voltage charging and floating charging stages, to improve the charging efficiency. The output current of the BUCK circuit 3 is detected through the current detection circuit 4, and the BUCK pulse is closed and delayed when the output current of the BUCK circuit 3 exceeds the limit. When the output current of the BUCK circuit 3 does not exceed the limit, the temperature of the battery is detected through the temperature detection circuit 5. When the temperature exceeds the limit, the heat dissipation module is linked to dissipate heat for the battery, and an overtemperature reminder is issued through the alarm 3 8. When the temperature does not exceed the limit, it returns to the undervoltage detection circuit 2, and repeats this process until the battery is overvoltage.

[0038] Through the linkage of the monitoring component and the distribution network component in the self-checking circuit 1, as well as the linkage of the data storage module, the recording and feedback of various data in the battery charging process are realized, thereby reducing personal injuries caused by accidents.

[0039] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural modes and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they shall all fall within the scope of protection of the present invention.

Claims

1. A power control method for an energy storage charging system, comprising the steps of: S1, firstly, the detection circuit is self-checked through the self-check circuit; S2, detect the battery voltage through the undervoltage detection circuit and realize the power-off operation of the main circuit; S3, through the BUCK circuit, the voltage at both ends of the charging circuit is gradually increased to improve the charging efficiency; S4. Through the current detection circuit, the output current of the BUCK circuit is detected, and the closing and delay detection of the BUCK pulse is realized; S5. The temperature of the battery is detected by a temperature detection circuit, and a heat dissipation operation is performed in conjunction with the temperature detection circuit.

2. The power control method of the energy storage charging system according to claim 1, characterized in that: A microprocessor is connected in series between the undervoltage detection circuit and the BUCK circuit, and the microprocessor is respectively connected to the charging circuit switch, the BUCK pulse switch, and the heat dissipation module through wires.

3. The power control method of the energy storage charging system according to claim 1, characterized in that: One end of the self-checking circuit is connected in series with an alarm device 1, one end of the undervoltage detection circuit is connected in series with an alarm device 2, and one end of the heat dissipation module is connected in series with an alarm device 3.

4. The power control method of the energy storage charging system according to claim 1, characterized in that: The current detection circuit is configured to perform delayed detection of the main circuit current.

5. The power control method of the energy storage charging system according to claim 1, characterized in that: The BUCK pulse switch is connected in series to the BUCK circuit.

6. The power control method of the energy storage charging system according to claim 1, characterized in that: The undervoltage detection circuit, the BUCK circuit, the current detection circuit and the temperature detection circuit form a loop.

7. The power control method of the energy storage charging system according to claim 3, characterized in that: The self-test circuit includes a monitoring component and a distribution network component. The monitoring component includes a display screen, a data acquisition and processing module, a device self-test module, a battery management module and a data storage module. The distribution network component includes a remote control terminal block, a remote signal terminal block and a power supply terminal block.

8. The power control method of the energy storage charging system according to claim 7, characterized in that: The power terminal block is connected to the power management module through a wire, the data acquisition and processing module is connected to the remote control terminal block and the remote signal terminal block through wires, one end of the data acquisition and processing module is connected to the zero point, and one end of the data storage module is connected to a data interface through a wire.

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