CN113595199A - Online intelligent maintenance management device for storage battery - Google Patents
Online intelligent maintenance management device for storage battery Download PDFInfo
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- CN113595199A CN113595199A CN202110907726.3A CN202110907726A CN113595199A CN 113595199 A CN113595199 A CN 113595199A CN 202110907726 A CN202110907726 A CN 202110907726A CN 113595199 A CN113595199 A CN 113595199A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 28
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- 230000002457 bidirectional effect Effects 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
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- 230000000694 effects Effects 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 2
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- 230000001105 regulatory effect Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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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
-
- 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
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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
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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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
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
-
- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of storage battery maintenance, and particularly relates to an online intelligent maintenance management device for a storage battery, which comprises a main control circuit CPU, wherein the main control circuit CPU is electrically connected with a main controller, the main controller is electrically connected with a voltage compensation circuit BCCD, the voltage compensation circuit BCCD is respectively and electrically connected with a bus and a battery, the battery is electrically connected with a battery voltage detection circuit DTD, the battery voltage detection circuit DTD is electrically connected with the main controller, and the main controller is electrically connected with a current detection circuit DJD. This online intelligent maintenance management device of battery through setting up intelligent offset voltage, superposes the developments low-voltage that produces after stepping down DC power supply voltage to the battery to reach the effect of intelligence constant voltage, the purpose of stable DC system busbar voltage.
Description
Technical Field
The invention relates to the technical field of storage battery maintenance, in particular to an online intelligent storage battery maintenance management device.
Background
The lead-acid storage battery is widely used as a backup power supply due to good stability, safety, reliability, simple maintenance and the like, so as to ensure all-weather power supply of various devices. In view of the importance of the storage battery, the lead-acid storage battery needs to be periodically subjected to nuclear capacity operation and maintenance. At present, the operation and maintenance of the nuclear capacity are finished by manually taking off the storage battery, so that the efficiency is low, the labor intensity is high, the storage battery with the mains supply fault is in an off-line state, and the potential safety hazard of fire is easily caused because a dummy load is adopted in the discharging process; in the operation and maintenance discharge process of the storage battery, the voltage of the storage battery is reduced along with the loss of the capacitance, and the voltage is reduced, so that the purpose of constant-current capacity checking is not achieved; when the commercial power is discharged due to a fault, the voltage is reduced, the line loss is increased, the stability of a power supply system is reduced, and in severe cases, the power grid oscillation and the system disconnection can be caused, so that the failure of a protection circuit is caused.
The electric energy of the storage battery is generated by internal chemical reaction, the voltage of the electric energy is gradually reduced along with the discharge time, and therefore, the voltage reduction is a dynamic process value. In the current direct current power supply system, a storage battery is directly connected with a direct current cabinet in parallel to serve as a load backup power supply, and the storage battery does not have the function of regulating voltage, so that a voltage drop generated in the discharging process is not solved, and an online intelligent storage battery maintenance and management device is needed.
Disclosure of Invention
Based on the prior technical problem, the invention provides an online intelligent maintenance and management device for a storage battery.
The invention provides an online intelligent maintenance and management device for a storage battery, which comprises a main control circuit CPU, wherein the main control circuit CPU is electrically connected with a main controller, the main controller is electrically connected with a voltage compensation circuit BCCD, the voltage compensation circuit BCCD is respectively and electrically connected with a bus and a battery, the battery is electrically connected with a battery voltage detection circuit DTD, the battery voltage detection circuit DTD is electrically connected with the main controller, and the main controller is electrically connected with a current detection circuit DJD.
Preferably, the voltage compensation circuit BCCD includes a DC/DC voltage reduction circuit, and the DC/DC voltage reduction circuit is electrically connected to the low pass filter circuit LCD.
Preferably, the low-pass filter LCD circuit is electrically connected to a voltage weighting circuit JCD and a bidirectional protection circuit SCD, respectively, and the voltage weighting circuit JCD and the bidirectional protection circuit SCD are electrically connected in a bidirectional manner.
Preferably, the intelligent voltage compensation method comprises the following steps:
the control of a compensation circuit is completed by a built-in program of a CPU of a main controller, and the compensation voltage value is intelligently calculated through a voltage detection circuit DTD and a real-time value of a DJD detection channel of a current detection device;
step two, C01, the main controller CPU is internally provided with an intelligent program to judge whether the storage battery is in a floating charge state, a uniform charge state or a discharge state;
step three, C02, when the battery is in the floating state, the CPU judges whether to start the operation and maintenance program according to the built-in intelligent program, and sends the instruction to C031; when the battery discharges due to a fault, the CPU sends an instruction to C032 according to a judgment result of a built-in intelligent program;
step four, C031, the compensation target voltage of online operation and maintenance is the value of comprehensive calculation according to the voltage of the charger at the front end of the bus and the load current;
step five, C302, the compensation target voltage of fault discharge takes the floating charge voltage of the storage battery as a target value;
step six, C04, the voltage drop of the battery is used as the adjusted parameter, the set target value is tracked in real time, the compensation voltage is output to the voltage weighting circuit after the calculation of the CPU;
and step seven, C05, the load current is a disturbance value, real-time monitoring is carried out, and in the disturbance process, calculation is carried out.
Preferably, a method for intelligently starting a voltage weighting circuit includes the following steps:
the operation of a voltage weighting circuit is intelligently executed by a built-in program of a CPU (central processing unit) of a main controller, P01, the built-in intelligent program of the CPU of the main controller judges that a storage battery is in a floating charge state, an even charge state or a discharge state;
step two, P02, detecting whether the equipment and the outside have faults in real time;
step three, P031, when breaking down, forbid the apparatus to start the discharge intelligent program of the operation and maintenance;
step four, P032, when no fault exists, receiving the operation of the controller or judging to send a discharge instruction;
and step five, P04, starting or stopping the voltage weighting circuit according to the instruction.
Preferably, the method for judging the state of the intelligent battery comprises the following steps:
step one, S01, the current detection circuit can measure the current value in real time, the built-in program judges the battery state according to the current value size direction: the current is more than 1A and is in uniform charging; the current is greater than 0 and less than 1A, and the battery is in floating charge; the current is less than 0, and the battery is discharged;
step two, S02, the external fault detector detects whether the charger has fault or not and whether the charger has ground fault or not at any time; the intelligent fault detector is used for constantly detecting whether the battery has short circuit or open circuit faults according to the performance analysis of the single battery;
step three, S03, when the fault is not detected, the main controller CPU comprehensively analyzes the operation and maintenance time, the operation and maintenance interval and the battery performance data, and sends out an operation and maintenance instruction;
step four, S041, according to the operation and maintenance instruction, the program starts the operation and maintenance compensation voltage program C031, and the compensation voltage target value automatically executes the operation result of the program C031;
step five, S042, detecting the fault, starting the fault compensation voltage program C032 by the program, and intelligently judging the fault type: when the charger fails, the target compensation voltage is the float charging voltage; and (3) the single battery is in open circuit and short circuit faults, the target compensation voltage automatically calculates a compensation value according to the single-point fault rate, and C031 executes an operation result.
The beneficial effects of the invention are as follows:
1. through setting up intelligent compensation voltage, the developments low-voltage that produces after stepping down DC power supply voltage superposes to the battery to reach the effect of intelligence constant voltage, the purpose of stable DC system bus voltage.
2. By arranging a voltage compensation circuit BCCD, a DC/DC voltage reduction circuit DCD, a low-pass filter circuit LCD, a bidirectional protection circuit SCD and a voltage weighting circuit JCD; the DC/DC voltage reduction circuit DCD receives the voltage value output by the main controller CPU after operation, and the voltage value is fully filtered and output to a direct current power supply system by a voltage weighting circuit JCD; when the bidirectional protection circuit SCD judges the fault of the direct-current system, the device starts the access bus without disturbance, so that the device can be seamlessly switched to the direct-current power supply system for supplying power after the fault recovery of the direct-current power supply system is judged, and the storage battery can automatically enter a backup power supply state.
3. By arranging a battery voltage detection circuit DTD, a current detection circuit DJD, a main control circuit CPU and a voltage compensation circuit BCCD, the detected voltage value is collected and operated by the CPU to output a dynamic low voltage value so as to compensate the direct current voltage reduction caused by the capacity loss of the storage battery in the discharging process; meanwhile, the direct current load is used as a disturbance factor, the change of the direct current load is monitored by detecting the current value, and the output dynamic low voltage is regulated through the acquisition and operation of the CPU, so that the direct current voltage power supply fluctuation caused by the change of the direct current load is eliminated.
Drawings
Fig. 1 is a schematic diagram of an online intelligent maintenance and management device for a storage battery according to the present invention;
fig. 2 is a schematic diagram of a voltage compensation circuit BCCD in the online intelligent maintenance and management device for a storage battery according to the present invention;
FIG. 3 is a flow chart of the intelligent compensation voltage in the online intelligent maintenance management device for the storage battery according to the present invention;
FIG. 4 is a flow chart of intelligent voltage weighting in an online intelligent maintenance management device for a storage battery according to the present invention;
fig. 5 is a flow chart of intelligent battery state judgment in the online intelligent maintenance and management device for the storage battery according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an online intelligent maintenance management device for a storage battery comprises a main control circuit CPU, wherein the main control circuit CPU is electrically connected with a main controller, and the main controller is electrically connected with a voltage compensation circuit BCCD;
the voltage compensation circuit BCCD comprises a DC/DC voltage reduction circuit, the DC/DC voltage reduction circuit is electrically connected with a low-pass filter circuit LCD, the low-pass filter circuit LCD is respectively electrically connected with a voltage weighting circuit JCD and a bidirectional protection circuit SCD, and the voltage weighting circuit JCD is electrically connected with the bidirectional protection circuit SCD in a bidirectional mode;
the voltage compensation circuit BCCD is respectively and electrically connected with a bus and a battery, the battery is electrically connected with a battery voltage detection circuit DTD, the battery voltage detection circuit DTD is electrically connected with a main controller, and the main controller is electrically connected with a current detection circuit DJD;
as shown in fig. 2, the input of the DC/DC voltage reduction circuit is connected to the positive and negative electrodes of the storage battery; the DC/DC output voltage value is regulated by a main controller CPU or a battery voltage actual value and an output current value and is connected with a low-pass filter circuit LCD; the negative end of the LCD is connected with the bus through a normally closed point of a contactor K1 of a voltage weighting circuit JCD; the opening and closing of the contactor are controlled according to the working instruction of the CPU; the anode of the LCD is connected to a bus through a freewheeling diode D2 of the bidirectional protection circuit SCD, and when the compensation voltage circuit starts to work, D2 is conducted; the other reverse diode D1 of the bidirectional protection circuit turns off in the reverse direction D1 when the compensation voltage circuit starts to work.
As shown in fig. 3, an intelligent voltage compensation method includes the following steps:
the control of a compensation circuit is completed by a built-in program of a CPU of a main controller, and the compensation voltage value is intelligently calculated through a voltage detection circuit DTD and a real-time value of a DJD detection channel of a current detection device;
step two, C01, the main controller CPU is internally provided with an intelligent program to judge whether the storage battery is in a floating charge state, a uniform charge state or a discharge state;
step three, C02, when the battery is in the floating state, the CPU judges whether to start the operation and maintenance program according to the built-in intelligent program, and sends the instruction to C031; when the battery discharges due to a fault, the CPU sends an instruction to C032 according to a judgment result of a built-in intelligent program;
step four, C031, the compensation target voltage of online operation and maintenance is the value of comprehensive calculation according to the voltage of the charger at the front end of the bus and the load current;
step five, C302, the compensation target voltage of fault discharge takes the floating charge voltage of the storage battery as a target value;
step six, C04, the voltage drop of the battery is used as the adjusted parameter, the set target value is tracked in real time, the compensation voltage is output to the voltage weighting circuit after the calculation of the CPU;
and step seven, C05, the load current is a disturbance value, real-time monitoring is carried out, and in the disturbance process, calculation is carried out.
As shown in fig. 4, a method for intelligently starting a voltage weighting circuit includes the following steps:
the operation of a voltage weighting circuit is intelligently executed by a built-in program of a CPU (central processing unit) of a main controller, P01, the built-in intelligent program of the CPU of the main controller judges that a storage battery is in a floating charge state, an even charge state or a discharge state;
step two, P02, detecting whether the equipment and the outside have faults in real time;
step three, P031, when breaking down, forbid the apparatus to start the discharge intelligent program of the operation and maintenance;
step four, P032, when no fault exists, receiving the operation of the controller or judging to send a discharge instruction;
and step five, P04, starting or stopping the voltage weighting circuit according to the instruction.
As shown in fig. 5, a method for judging the state of an intelligent battery includes the following steps:
step one, S01, the current detection circuit can measure the current value in real time, the built-in program judges the battery state according to the current value size direction: the current is more than 1A and is in uniform charging; the current is greater than 0 and less than 1A, and the battery is in floating charge; the current is less than 0, and the battery is discharged;
step two, S02, the external fault detector detects whether the charger has fault or not and whether the charger has ground fault or not at any time; the intelligent fault detector is used for constantly detecting whether the battery has short circuit or open circuit faults according to the performance analysis of the single battery;
step three, S03, when the fault is not detected, the main controller CPU comprehensively analyzes the operation and maintenance time, the operation and maintenance interval and the battery performance data, and sends out an operation and maintenance instruction;
step four, S041, according to the operation and maintenance instruction, the program starts the operation and maintenance compensation voltage program C031, and the compensation voltage target value automatically executes the operation result of the program C031;
step five, S042, detecting the fault, starting the fault compensation voltage program C032 by the program, and intelligently judging the fault type: when the charger fails, the target compensation voltage is the float charging voltage; the single battery is in open circuit and short circuit faults, the target compensation voltage automatically calculates a compensation value according to the single-point fault rate, and C031 executes an operation result;
the judgment of the battery state is to ensure the safe application of the battery. Because the charger must be constantly hot-standby, the intelligent operation and maintenance can only be carried out in a fault-free state, and the voltage compensation value is obtained by operation in a floating charging state. And the voltage compensation value of the fault discharge is voltage fluctuation caused by voltage drop and gradual load reduction in the discharge process.
By arranging a battery voltage detection circuit DTD, a current detection circuit DJD, a main control circuit CPU and a voltage compensation circuit BCCD, the detected voltage value is collected and operated by the CPU to output a dynamic low voltage value so as to compensate the direct current voltage reduction caused by the capacity loss of the storage battery in the discharging process; meanwhile, the direct current load is used as a disturbance factor, the change of the direct current load is monitored by detecting the current value, and the output dynamic low voltage is regulated through the acquisition and operation of the CPU, so that the direct current voltage power supply fluctuation caused by the change of the direct current load is eliminated.
By arranging a voltage compensation circuit BCCD, a DC/DC voltage reduction circuit DCD, a low-pass filter circuit LCD, a bidirectional protection circuit SCD and a voltage weighting circuit JCD; the DC/DC voltage reduction circuit DCD receives the voltage value output by the main controller CPU after operation, and the voltage value is fully filtered and output to a direct current power supply system by a voltage weighting circuit JCD; when the bidirectional protection circuit SCD judges the fault of the direct-current system, the device starts the access bus without disturbance, so that the effect that the device is seamlessly switched to the direct-current power supply system for supplying power after the fault recovery of the direct-current power supply system is judged, and the storage battery automatically enters a backup power supply state is achieved;
through intelligent compensation voltage, the dynamic low voltage that produces after stepping down DC power supply voltage superposes to the battery to reach the effect of intelligence constant voltage, the purpose of stable DC system bus voltage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a management device is maintained to online intelligence of battery, includes main control circuit CPU, its characterized in that: the main control circuit CPU electric connection has the master controller, master controller electric connection has voltage compensation circuit BCCD, voltage compensation circuit BCCD electric connection has generating line and battery respectively, battery electric connection has battery voltage detection circuit DTD, battery voltage detection circuit DTD and master controller electric connection, master controller electric connection has current detection circuit DJD.
2. The online intelligent maintenance and management device for the storage battery according to claim 1, characterized in that: the voltage compensation circuit BCCD comprises a DC/DC voltage reduction circuit, and the DC/DC voltage reduction circuit is electrically connected with a low-pass filter circuit LCD.
3. The online intelligent maintenance and management device for the storage battery according to claim 2, characterized in that: the low-pass filtering LCD circuit is respectively and electrically connected with a voltage weighting circuit JCD and a bidirectional protection circuit SCD, and the voltage weighting circuit JCD is electrically connected with the bidirectional protection circuit SCD in a bidirectional mode.
4. An intelligent voltage compensation method is realized on the basis of the storage battery online intelligent maintenance management device of any one of claims 1-3, and is characterized by comprising the following steps:
the control of a compensation circuit is completed by a built-in program of a CPU of a main controller, and the compensation voltage value is intelligently calculated through a voltage detection circuit DTD and a real-time value of a DJD detection channel of a current detection device;
step two, C01, the main controller CPU is internally provided with an intelligent program to judge whether the storage battery is in a floating charge state, a uniform charge state or a discharge state;
step three, C02, when the battery is in the floating state, the CPU judges whether to start the operation and maintenance program according to the built-in intelligent program, and sends the instruction to C031; when the battery discharges due to a fault, the CPU sends an instruction to C032 according to a judgment result of a built-in intelligent program;
step four, C031, the compensation target voltage of online operation and maintenance is the value of comprehensive calculation according to the voltage of the charger at the front end of the bus and the load current;
step five, C302, the compensation target voltage of fault discharge takes the floating charge voltage of the storage battery as a target value;
step six, C04, the voltage drop of the battery is used as the adjusted parameter, the set target value is tracked in real time, the compensation voltage is output to the voltage weighting circuit after the calculation of the CPU;
and step seven, C05, the load current is a disturbance value, real-time monitoring is carried out, and in the disturbance process, calculation is carried out.
5. A method for intelligently starting a voltage weighting circuit is realized based on the online intelligent maintenance management device of the storage battery according to any one of claims 1-3, and is characterized by comprising the following steps:
the operation of a voltage weighting circuit is intelligently executed by a built-in program of a CPU (central processing unit) of a main controller, P01, the built-in intelligent program of the CPU of the main controller judges that a storage battery is in a floating charge state, an even charge state or a discharge state;
step two, P02, detecting whether the equipment and the outside have faults in real time;
step three, P031, when breaking down, forbid the apparatus to start the discharge intelligent program of the operation and maintenance;
step four, P032, when no fault exists, receiving the operation of the controller or judging to send a discharge instruction;
and step five, P04, starting or stopping the voltage weighting circuit according to the instruction.
6. An intelligent battery state judgment method is realized based on the storage battery online intelligent maintenance management device of any one of claims 1-3, and is characterized by comprising the following steps:
step one, S01, the current detection circuit can measure the current value in real time, the built-in program judges the battery state according to the current value size direction: the current is more than 1A and is in uniform charging; the current is greater than 0 and less than 1A, and the battery is in floating charge; the current is less than 0, and the battery is discharged;
step two, S02, the external fault detector detects whether the charger has fault or not and whether the charger has ground fault or not at any time; the intelligent fault detector is used for constantly detecting whether the battery has short circuit or open circuit faults according to the performance analysis of the single battery;
step three, S03, when the fault is not detected, the main controller CPU comprehensively analyzes the operation and maintenance time, the operation and maintenance interval and the battery performance data, and sends out an operation and maintenance instruction;
step four, S041, according to the operation and maintenance instruction, the program starts the operation and maintenance compensation voltage program C031, and the compensation voltage target value automatically executes the operation result of the program C031;
step five, S042, detecting the fault, starting the fault compensation voltage program C032 by the program, and intelligently judging the fault type: when the charger fails, the target compensation voltage is the float charging voltage; and (3) the single battery is in open circuit and short circuit faults, the target compensation voltage automatically calculates a compensation value according to the single-point fault rate, and C031 executes an operation result.
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| CN202110907726.3A CN113595199A (en) | 2021-08-09 | 2021-08-09 | Online intelligent maintenance management device for storage battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991717A (en) * | 2021-11-19 | 2022-01-28 | 上海沪臻智能科技有限公司 | A system and method for energy saving of a base station |
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