CN112910056A - System and method for monitoring current and electric quantity balance of power storage battery in echelon utilization - Google Patents
System and method for monitoring current and electric quantity balance of power storage battery in echelon utilization Download PDFInfo
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- CN112910056A CN112910056A CN202110323691.9A CN202110323691A CN112910056A CN 112910056 A CN112910056 A CN 112910056A CN 202110323691 A CN202110323691 A CN 202110323691A CN 112910056 A CN112910056 A CN 112910056A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
- G01R31/379—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator for lead-acid batteries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00718—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to charge current gradient
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a current and electric quantity balance monitoring system and method for gradient utilization of an electric power storage battery, aiming at the problem of mismatching of current and electric quantity among a charger, a battery unit and a UPS in a lead-acid storage battery combination for electric power, the device stops working under the condition of undercharging or overcharging any battery unit, and starts working after the current electric quantity at the front end is accumulated, so that the battery is kept in a charging and discharging working state under a stable flow, the function of regulating the charging and discharging current and electric quantity balance of the lead-acid storage battery is realized, and the charging and discharging working efficiency of the lead-acid storage battery is improved. The optimal volume of the current balancer is obtained through observation and calculation of combined charging and discharging, so that the equipment which is thrown in and withdrawn has buffering time, and frequent throwing in and withdrawing damage to the charging equipment is avoided. The intelligent monitoring and remote control device maintains the current balance between the battery unit and the voltage load in the power supply and utilization process, and achieves the effects of saving labor and time and improving the maintenance efficiency in the charging, discharging, operation and maintenance process.
Description
Technical Field
The invention belongs to the technical field of storage battery recycling, and particularly relates to a current and electric quantity balance monitoring system and method for gradient utilization of an electric storage battery.
Background
The lead-acid storage battery device for electric power generally comprises four activating devices, namely a positive electrode wiring device, a negative electrode wiring device, a regenerated liquid device, a high-speed and low-speed charging button and a control circuit. However, the types and manufacturers of the devices adopted by general power generation and supply units are different, and the requirements are different, and in the charging process, the constant-current and constant-voltage charging fails because the current changes along with the change of the charging electric quantity; lead-acid storage batteries are more difficult to control, so that the charging temperature is high, sulfides are not easy to remove during charging and discharging, the charger has the phenomenon of insufficient current and 'unsaturated absorption', and the charging efficiency is influenced, even serious accidents of 'explosion' occur. Therefore, a control device is needed to be arranged among the charger, the battery unit and the UPS load to adjust the current and electric quantity balance, and guarantee the smoothness and safety of charging and discharging. The current and the electric quantity are unbalanced due to different internal resistances of the charger, the load and the control unit, an operator is required to frequently adjust and control the current and the electric quantity, a person on duty needs to be careful and cannot have any tiger, and otherwise, the current is locally exploded.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a current and electric quantity balance monitoring system and method for the gradient utilization of an electric storage battery, which are used for adjusting the charge and discharge current and electric quantity balance of a lead-acid storage battery.
The technical scheme adopted by the invention for solving the technical problems is as follows: a power storage battery echelon utilization current and electric quantity balance monitoring system comprises a control unit, a UPS, front-end charging equipment, a battery unit and rear-end load equipment; the energy input end of the UPS is respectively connected with the commercial power and the energy output end of the battery unit, the energy output end of the UPS is respectively connected with the energy input end of the front-end charging device and the energy input end of the rear-end load device, the energy output end of the front-end charging device is connected with the energy input end of the battery unit, the signal receiving end of the control unit is connected with the signal transmitting end of the battery unit, and the signal transmitting end of the control unit is respectively connected with the signal receiving end of the UPS and the signal receiving end of the battery unit; the control unit is used for receiving an electric quantity signal and a current signal sent by the battery unit, monitoring the electric quantity of the battery unit and the current magnitude in the charging and discharging process, calculating and sending an electric quantity balance control command and a current control command to the battery unit, disconnecting the front-end charging equipment when the current value reaches the upper limit of a preset value, disconnecting the rear-end load equipment when the current value reaches the lower limit of the preset value, and controlling the shutdown of the battery unit when an abnormal signal is received; the UPS is used for stabilizing the mains supply and supplying the regulated mains supply to rear-end load equipment when the mains supply is normal, and simultaneously charging the battery unit through front-end charging equipment; the UPS is used for converting and supplying the electric energy of the battery unit to the rear-end load equipment when the commercial power is interrupted; the front-end charging equipment is used for charging the battery unit and removing impurities in the energy storage battery; the battery unit comprises an energy storage battery, a battery monitoring module and a communication module; the signal receiving end of the battery monitoring module is connected with the energy storage battery, the signal sending end of the battery monitoring module is connected with the signal receiving end of the communication module, and the signal sending end of the communication module is connected with the signal receiving end of the control unit in a wired or wireless mode; the battery monitoring module comprises a current sensor and a voltage sensor; the current sensor and the voltage sensor are respectively used for reading current data and voltage data of the energy storage battery once per minute; the communication module is used for receiving data including test time, current, voltage and temperature of the battery and transmitting the data to the control unit.
According to the scheme, the battery monitoring module further comprises a temperature sensor, and the temperature sensor is used for reading the temperature data of the energy storage battery.
According to the scheme, the UPS adopts a UPS controller JPSU403000 comprising an integrated control unit, the rated power is not less than 3kVA/2.5kW, and the continuous power supply time is not less than 2 h.
According to the scheme, the energy storage battery adopts 24 lead-acid storage batteries GFM-200 connected in series.
According to the scheme, the battery monitoring module adopts a lead-acid storage battery monitor BPMC 48.
According to the scheme, the impurities in the energy storage battery comprise solid impurities, liquid impurities, gas impurities and sulfur solid molecules.
According to the scheme, the communication module comprises a data communication port or mobile equipment; the period of data acquisition by the communication module is 10 seconds, and the data storage format is xls.
A method for monitoring the gradient utilization current and electric quantity balance of a power storage battery comprises the following steps:
s1: the method comprises the steps of building a power storage battery echelon utilization current and electric quantity balance monitoring system, wherein the power storage battery echelon utilization current and electric quantity balance monitoring system comprises a control unit, a UPS, front-end charging equipment, a battery unit and rear-end load equipment; the energy input end of the UPS is respectively connected with the commercial power and the energy output end of the battery unit, the energy output end of the UPS is respectively connected with the energy input end of the front-end charging device and the energy input end of the rear-end load device, the energy output end of the front-end charging device is connected with the energy input end of the battery unit, the signal receiving end of the control unit is connected with the signal transmitting end of the battery unit, and the signal transmitting end of the control unit is respectively connected with the signal receiving end of the UPS and the signal receiving end of the battery unit; the battery unit comprises an energy storage battery, a battery monitoring module and a communication module; the energy storage battery adopts a plurality of lead-acid storage batteries connected in series; the battery monitoring module comprises a current sensor, a voltage sensor and a temperature sensor, the current sensor is connected in series to a charge-discharge loop of the energy storage battery, the voltage sensor is connected in parallel between the anode and the cathode of the energy storage battery, and the temperature sensor is tightly attached to the surface of the energy storage battery; the signal sending end of the battery monitoring module is connected with the signal receiving end of the communication module, and the signal sending end of the communication module is connected with the signal receiving end of the control unit in a wired or wireless mode;
s2: the commercial power switch is communicated to supply power to the UPS; when the mains supply is normal, the UPS supplies the mains supply to the rear-end load equipment after stabilizing the voltage, and simultaneously charges the battery unit through the front-end charging equipment; when the commercial power is interrupted, the UPS converts and supplies the electric energy of the battery unit to the rear-end load equipment;
s3: in the charging and discharging process of the battery unit, the control unit receives the current value and the electric quantity value of the battery unit; if the control unit receives the abnormal signal, a shutdown signal is sent to the battery unit, and the reason is analyzed; in the charging process of the battery unit, if the current value of the battery unit received by the control unit reaches the upper limit of the preset value, the front-end charging equipment is disconnected; in the discharging process of the battery unit, if the current value of the battery unit received by the control unit reaches a preset value lower limit, the rear-end load equipment is disconnected;
s4: testing the retired battery, calculating the residual battery capacity of the energy storage battery and storing the serial number of the energy storage battery by the control unit according to the data received in the step S3, and screening out the high residual capacity battery in the retired battery;
s5: regrouping the retired batteries with high residual capacity for energy storage or a general backup power supply; and bringing the retired battery with non-high residual capacity into a standardized recycling and scrapping treatment system, and realizing the whole process tracking of the battery.
Further, in step S5, the indicators of the regrouping of the retired battery include internal resistance consistency, voltage consistency, and capacity consistency.
A computer storage medium having stored therein a computer program executable by a computer processor, the computer program executing a power storage battery echelon utilization current-to-charge balance monitoring method.
The invention has the beneficial effects that:
1. according to the current and electric quantity balance monitoring system and method for the power storage battery, disclosed by the invention, the equipment stops working under the conditions of 'undercharge' and 'overcharge' of any battery unit, and the battery starts to work after the front-end current electric quantity is accumulated, so that the battery is kept in a charging and discharging working state under a stable flow, the function of adjusting the charging and discharging current and electric quantity balance of the lead-acid storage battery is realized, the charging and discharging working efficiency of the lead-acid storage battery is improved, the service life loss of the battery caused by mismatching of charging and discharging voltages is avoided, and the working life of the battery is prolonged.
2. The optimal volume of the current balancer is obtained through observation and calculation of combined charging and discharging, so that the equipment which is thrown in and withdrawn reaches a certain buffering time, and the charging equipment is prevented from being damaged by too frequent throwing and withdrawing.
3. The intelligent monitoring and remote control device is applied to power supply and utilization under the control condition of wireless equipment where power supply is located in various teams and groups, current balance between the battery unit and the voltage load is maintained through the intelligent monitoring and remote control device in the power supply and utilization process, and the effects of saving labor and labor for charging, discharging, operation and maintenance and improving maintenance efficiency are achieved.
4. The invention can also be used as a technical supervision simulation device of the lead-acid storage battery pack of the transformer substation; the temperature monitoring device is suitable for monitoring large current and electric quantity and temperature rise, and ensures the power utilization safety.
5. The invention has the interface suitable for various current and electric quantity devices, is suitable for being used among various battery devices and battery models, and has strong popularization adaptability.
6. The invention has reasonable structure and convenient placement; the weight is suitable, the transfer is convenient, and the installation in the field process of the charging and discharging battery pack is convenient.
Drawings
FIG. 1 is a functional block diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the embodiment of the invention comprises a charger BPMC48, a battery unit, a UPS and a load, and the control system monitors the current and the electric quantity to realize the comprehensive removal of solid, liquid and gas impurities and sulfur solid molecules in the lead-acid storage battery.
The working principle of the invention is as follows: the method comprises the steps that a current meter and a voltage meter are installed on a battery unit, current and voltage data are read every minute and transmitted to a remote control system through a data communication port or a WeChat program; and if the abnormal signal exists, the remote control system sends a shutdown signal to the battery unit and analyzes the reason.
The remote control system obtains control parameters for balancing current and electric quantity through observation and calculation of the combined charging and discharging device, and when the current is monitored to reach an upper warning line, the front-end charging device is jumped off; when the current is monitored to be lower than the warning line, the rear-end load equipment is jumped off; the equipment which is put into and withdrawn is enabled to reach a certain buffering time, and the charging equipment and the electric equipment are prevented from being damaged due to frequent putting-in and withdrawing.
Test time, current, voltage, the temperature of battery are received through cell-phone APP, and the acquisition cycle is 10 seconds. The data is saved in xls format. No WIFI signal exists at the place where the echelon energy storage equipment is located, and data can only be sent through the mobile phone traffic card.
And (3) measuring point arrangement: 24 batteries are connected in series, and 4 temperature measuring points, 1 current measuring point and 24 battery terminal voltage measuring points are arranged on the battery double-layer rack. The UPS and small PCS integrated design is adopted, the rated power is 3kVA/2.5kW, and the continuous power supply time is 2 h.
TABLE 1 analysis of requirements
According to requirements, a JPSU403000 type UPS controller is adopted, and a 24-section lead-acid battery GFM-200 and BPMC48 lead-acid battery monitor is adopted as an energy storage battery. As shown in fig. 1.
The requirements of the service environment of the battery are as follows:
TABLE 2 Battery usage Environment
The main technical parameters of the acquisition module are as follows:
TABLE 3 acquisition Module technical parameters
The invention aims at the comprehensive benefits of secondary utilization of the retired storage battery after grabbing retirement, and realizes multi-scene application of secondary utilization of the lead-acid storage battery on the land and the retired storage battery.
Aiming at the industrial stubborn problem that a large number of batteries with high residual capacity are retreated and directly scrapped due to local battery deterioration, resources are wasted and pollution is easily caused, the invention quickly identifies the batteries with high residual capacity by means of a screening device and develops comprehensive energy services of the batteries with high residual capacity, such as battery leasing and hybrid energy storage services.
The invention tests the retired batteries and regroups the retired batteries (the recombination basis is internal resistance consistency, voltage consistency and capacity consistency); the recombined battery can be directly used for energy storage or a common backup power supply (emergency lighting, court lighting and the like); aiming at unusable ex-service batteries (including ex-service batteries after secondary utilization), a standardized recycling and scrapping treatment system is formulated, and the whole process tracking of the batteries is realized.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a balanced monitored control system of electric power battery echelon utilization electric current electric quantity which characterized in that: the intelligent charging system comprises a control unit, a UPS, front-end charging equipment, a battery unit and rear-end load equipment; the energy input end of the UPS is respectively connected with the commercial power and the energy output end of the battery unit, the energy output end of the UPS is respectively connected with the energy input end of the front-end charging device and the energy input end of the rear-end load device, the energy output end of the front-end charging device is connected with the energy input end of the battery unit, the signal receiving end of the control unit is connected with the signal transmitting end of the battery unit, and the signal transmitting end of the control unit is respectively connected with the signal receiving end of the UPS and the signal receiving end of the battery unit;
the control unit is used for receiving an electric quantity signal and a current signal sent by the battery unit, monitoring the electric quantity of the battery unit and the current magnitude in the charging and discharging process, calculating and sending an electric quantity balance control command and a current control command to the battery unit, disconnecting the front-end charging equipment when the current value reaches the upper limit of a preset value, disconnecting the rear-end load equipment when the current value reaches the lower limit of the preset value, and controlling the shutdown of the battery unit when an abnormal signal is received;
the UPS is used for stabilizing the mains supply and supplying the regulated mains supply to rear-end load equipment when the mains supply is normal, and simultaneously charging the battery unit through front-end charging equipment; the UPS is used for converting and supplying the electric energy of the battery unit to the rear-end load equipment when the commercial power is interrupted;
the front-end charging equipment is used for charging the battery unit and removing impurities in the energy storage battery;
the battery unit comprises an energy storage battery, a battery monitoring module and a communication module; the signal receiving end of the battery monitoring module is connected with the energy storage battery, the signal sending end of the battery monitoring module is connected with the signal receiving end of the communication module, and the signal sending end of the communication module is connected with the signal receiving end of the control unit in a wired or wireless mode;
the battery monitoring module comprises a current sensor and a voltage sensor; the current sensor and the voltage sensor are respectively used for reading current data and voltage data of the energy storage battery once per minute;
the communication module is used for receiving data including test time, current, voltage and temperature of the battery and transmitting the data to the control unit.
2. The power storage battery echelon utilization current-charge balance monitoring system as claimed in claim 1, wherein: the battery monitoring module further comprises a temperature sensor, and the temperature sensor is used for reading temperature data of the energy storage battery.
3. The power storage battery echelon utilization current-charge balance monitoring system as claimed in claim 1, wherein: the UPS adopts a UPS controller JPSU403000 comprising an integrated control unit, the rated power is not less than 3kVA/2.5kW, and the continuous power supply time is not less than 2 h.
4. The power storage battery echelon utilization current-charge balance monitoring system as claimed in claim 1, wherein: the energy storage battery adopts 24 lead-acid storage batteries GFM-200 connected in series.
5. The power storage battery echelon utilization current-charge balance monitoring system as claimed in claim 1, wherein: the battery monitoring module adopts a lead-acid storage battery monitor BPMC 48.
6. The power storage battery echelon utilization current-charge balance monitoring system as claimed in claim 1, wherein: impurities in energy storage cells include solid impurities, liquid impurities, gaseous impurities, and sulfur solid-state molecules.
7. The power storage battery echelon utilization current-charge balance monitoring system as claimed in claim 1, wherein: the communication module comprises a data communication port or a mobile device; the period of data acquisition by the communication module is 10 seconds, and the data storage format is xls.
8. A monitoring method of a power storage battery echelon utilization current-charge balance monitoring system based on any one of claims 1 to 7, characterized by comprising the following steps: the method comprises the following steps:
s1: the method comprises the steps of building a power storage battery echelon utilization current and electric quantity balance monitoring system, wherein the power storage battery echelon utilization current and electric quantity balance monitoring system comprises a control unit, a UPS, front-end charging equipment, a battery unit and rear-end load equipment; the energy input end of the UPS is respectively connected with the commercial power and the energy output end of the battery unit, the energy output end of the UPS is respectively connected with the energy input end of the front-end charging device and the energy input end of the rear-end load device, the energy output end of the front-end charging device is connected with the energy input end of the battery unit, the signal receiving end of the control unit is connected with the signal transmitting end of the battery unit, and the signal transmitting end of the control unit is respectively connected with the signal receiving end of the UPS and the signal receiving end of the battery unit;
the battery unit comprises an energy storage battery, a battery monitoring module and a communication module;
the energy storage battery adopts a plurality of lead-acid storage batteries connected in series;
the battery monitoring module comprises a current sensor, a voltage sensor and a temperature sensor, the current sensor is connected in series to a charge-discharge loop of the energy storage battery, the voltage sensor is connected in parallel between the anode and the cathode of the energy storage battery, and the temperature sensor is tightly attached to the surface of the energy storage battery; the signal sending end of the battery monitoring module is connected with the signal receiving end of the communication module, and the signal sending end of the communication module is connected with the signal receiving end of the control unit in a wired or wireless mode;
s2: the commercial power switch is communicated to supply power to the UPS; when the mains supply is normal, the UPS supplies the mains supply to the rear-end load equipment after stabilizing the voltage, and simultaneously charges the battery unit through the front-end charging equipment; when the commercial power is interrupted, the UPS converts and supplies the electric energy of the battery unit to the rear-end load equipment;
s3: in the charging and discharging process of the battery unit, the control unit receives the current value and the electric quantity value of the battery unit; if the control unit receives the abnormal signal, a shutdown signal is sent to the battery unit, and the reason is analyzed;
in the charging process of the battery unit, if the current value of the battery unit received by the control unit reaches the upper limit of the preset value, the front-end charging equipment is disconnected;
in the discharging process of the battery unit, if the current value of the battery unit received by the control unit reaches a preset value lower limit, the rear-end load equipment is disconnected;
s4: testing the retired battery, calculating the residual battery capacity of the energy storage battery and storing the serial number of the energy storage battery by the control unit according to the data received in the step S3, and screening out the high residual capacity battery in the retired battery;
s5: regrouping the retired batteries with high residual capacity for energy storage or a general backup power supply; and bringing the retired battery with non-high residual capacity into a standardized recycling and scrapping treatment system, and realizing the whole process tracking of the battery.
9. The monitoring method according to claim 8, characterized in that: in step S5, the indicators of the regrouping of the retired battery include internal resistance consistency, voltage consistency, and capacity consistency.
10. A computer storage medium, characterized in that: stored with a computer program executable by a computer processor, the computer program executing a power storage battery echelon utilization current-charge balance monitoring method according to any one of claims 8 to 9.
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| CN202110323691.9A CN112910056A (en) | 2021-03-26 | 2021-03-26 | System and method for monitoring current and electric quantity balance of power storage battery in echelon utilization |
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2021
- 2021-03-26 CN CN202110323691.9A patent/CN112910056A/en active Pending
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|---|---|---|---|---|
| CN1615567A (en) * | 2002-01-16 | 2005-05-11 | 苏治在 | Circuit for stably charging battery |
| US20170353042A1 (en) * | 2015-02-24 | 2017-12-07 | Beijing Samevolt Co., Ltd. | Smart battery, electric energy allocation bus system, battery charging and discharging method and electric energy allocation method |
| CN104882931A (en) * | 2015-05-27 | 2015-09-02 | 沈阳航空航天大学 | Aviation power supply battery management system and method |
| CN109802453A (en) * | 2018-11-23 | 2019-05-24 | 韶关市欧姆机电设备有限公司 | A kind of the intelligent charge management module and management method of photo-voltaic power supply |
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