Battery sorting system powered by rapid changes in field current

Abstract

This invention proposes a battery sorting system for situations involving rapid changes in field current. The system includes: a plant-side device; an inverter connected to the plant-side device; and a voltage detector receiving voltage signals from the inverter to determine whether the voltage signal from the inverter is within a first preset range or a second preset range. When the voltage signal is within the first preset range, a high-rate battery is activated for power supply; when the voltage signal is within the second preset range, a regular battery is activated for power supply. The system also uses backup voltage detectors, configured at both the high-rate battery and regular battery terminals. If the backup voltage detector fails, it is activated.

Claims

1. A battery sorting system for handling rapid changes in field current, comprising: a plant-end device; an inverter connected to the plant-end device; the inverter being used for DC-AC conversion of power; a high-rate battery circuit, comprising: a first voltage detector receiving a voltage signal from the inverter; determining whether the voltage signal from the inverter is within a first preset range; if it is within the first preset range, issuing a preset command to the connected back-end device; a first battery management module connected to the inverter and the first voltage detector; the first battery management module receiving a command from the first voltage detector to adjust the output current; a high-rate battery connected to the first battery management module; when the first voltage detector calculates that the voltage fluctuation of the inverter is within the first preset range, adjusting the output of the high-rate battery via the first battery management module; at this time, power is mainly output from the high-rate battery to the plant-end device; a general battery circuit, comprising: A second voltage detector receives a voltage signal from the inverter to determine whether the voltage signal from the inverter is within a second preset range. When the voltage signal from the inverter is within the second preset range, a preset command is issued to the connected back-end equipment. A second battery management module (BMS) is connected to the inverter and the second voltage detector. The second battery management module receives commands from the second voltage detector to adjust the output current. A general-purpose battery is connected to the second battery management module. When the second voltage detector calculates that the voltage fluctuation of the inverter is within the second preset range, the output of the general-purpose battery is adjusted via the second battery management module. At this time, the power is mainly output from the general-purpose battery to the factory equipment.

2. The battery sorting system for sudden changes in field current as described in claim 1, wherein the rate of change of voltage in the first preset range is greater than the rate of change of voltage in the second preset range.

3. The battery sorting system for sudden changes in field current as described in claim 1, wherein the rate of the high-rate battery is greater than or equal to 1C; and the rate of the general battery is less than 1C.

4. A battery sorting system for handling rapid changes in field current, comprising: a plant-end device; an inverter connected to the plant-end device; the inverter being used for DC-AC conversion of power; a voltage detector receiving a voltage signal from the inverter; determining whether the voltage signal from the inverter is within a first preset range or a second preset range; when the voltage signal from the inverter is within the first preset range, issuing a preset command to the connected back-end device; when the voltage signal from the inverter is within the second preset range, issuing another preset command to another connected back-end device; A high-rate battery circuit includes: a first battery management module connected to the inverter and the voltage detector; the first battery management module receives instructions from the voltage detector to adjust the output current; when the voltage signal from the inverter is within a first preset range, the first battery management module issues instructions to the back-end equipment; a high-rate battery connected to the first battery management module, and when the voltage detector calculates that the voltage fluctuation of the inverter is within the first preset range, the output of the high-rate battery is adjusted via the first battery management module; at this time, the power is mainly output to the factory equipment from the high-rate battery. A typical battery circuit includes: a second battery management module connected to the inverter and the voltage detector; the second battery management module receives instructions from the voltage detector to adjust the output current; when the voltage signal from the inverter is within a second preset range, the second battery management module issues instructions to the back-end equipment; a general battery connected to the second battery management module, and when the voltage detector calculates that the voltage fluctuation of the inverter is within the second preset range, the output of the general battery is adjusted by the second battery management module; at this time, the power is mainly output from the general battery to the back-end equipment.

5. The battery sorting system for sudden changes in field current as described in claim 4, wherein the rate of change of voltage in the first preset range is greater than the rate of change of voltage in the second preset range.

6. The battery sorting system for sudden changes in field current as described in claim 4, wherein the rate of the high-rate battery is greater than or equal to 1C; and the rate of the general battery is less than 1C.

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