CN211605342U - Base station retired battery intelligent management system - Google Patents
Base station retired battery intelligent management system Download PDFInfo
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- CN211605342U CN211605342U CN202020357511.XU CN202020357511U CN211605342U CN 211605342 U CN211605342 U CN 211605342U CN 202020357511 U CN202020357511 U CN 202020357511U CN 211605342 U CN211605342 U CN 211605342U
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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
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Abstract
A base station retired battery intelligent management system comprises a mainboard, a plurality of retired batteries connected with in-service batteries in series and a power switch, wherein each in-service battery and each retired battery are respectively connected with a bypass in parallel, monomer management units are installed on the bypasses and used for controlling charging and discharging of the batteries, and each monomer management unit comprises a battery driving board and a battery control board which are electrically connected; the positive and negative poles of the in-service battery and the retired battery are electrically connected to the corresponding battery control boards, and all the battery control boards are electrically connected to the mainboard. Through the bypass control of the charging and discharging circuit of the single battery, the personalized, customized and high-complexity intelligent management of the single battery in the battery pack is realized, so that the characteristics that the performance of the single battery is not changed and the performance of the battery pack is greatly improved are achieved.
Description
Technical Field
The utility model relates to a retired battery echelon utilizes technical field, concretely relates to basic station retired battery intelligent management system.
Background
The battery management system is commonly called a battery caregiver or a battery manager, and is mainly used for intelligently managing and maintaining each battery unit, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery and monitoring the state of the battery. The retired battery recycling management system adopts power electronics and microcomputer intelligent measurement and control technologies, and achieves intelligent maintenance and efficient charging and discharging management and control of the storage battery pack and the battery monomer through control over charging and discharging processes of the storage battery pack and the battery monomer. Under the intelligent management of the power platform, the storage battery can store energy effectively to the maximum extent, the lead-acid storage battery is restrained from being vulcanized, and the capacity that the battery in a standby state all the year around can discharge effectively at any time is guaranteed.
As shown in fig. 1, a tower base station currently uses 24 batteries (each battery has a voltage of 2V) directly connected in series to form a battery pack, and does not use a single battery for control, and the battery pack outputs a voltage of 48V to power tower equipment. Due to individual difference of single batteries, the overcharge or overdischarge of one or more batteries can occur, so that the capacity of the battery pack is reduced, the 48V output time is shortened, and the time requirement of power backup in power failure of the iron tower cannot be met. The existing battery management system generally controls battery groups, cannot realize the control of a single battery, and also influences the standby time of the whole battery pack when the capacity of the single battery in the grouped battery is reduced. At present, a battery management system adopted by an iron tower base station does not have an active balancing function, but all batteries are uniformly charged and discharged. The existing equalizing charge mode of the battery management system is to overcharge the battery, so that the phenomenon that a single battery is undercharged is avoided, and the battery is fully charged is further solved.
The existing battery management system controls batteries in groups regardless of the management and control of the batteries in service or the reuse of the batteries in retirement, but cannot control each battery monomer more accurately and independently, so that some battery monomers in the same group are easily overcharged or undercharged; and the retired battery is not fully reused, and the application range of the management system is limited.
In addition, a large amount of heat is often generated in the long-time use of the battery, so the heat of the battery needs to be monitored in real time in the use process, the traditional monitoring method is to monitor the heat manually, the monitoring method has no real-time performance, and the monitoring difficulty of workers is increased.
SUMMERY OF THE UTILITY MODEL
To the technical defect, the utility model provides a basic station retired battery intelligent management system through single section battery charging and discharging circuit bypass management and control, realizes the intelligent management of individuation, customization, the high complexity of single section battery in the group battery to reach the characteristics that battery monomer performance is unchangeable and the group battery performance increases substantially.
The utility model adopts the following scheme:
a base station retired battery intelligent management system comprises a mainboard, a plurality of retired batteries connected with in-service batteries in series and a power switch, wherein each in-service battery and each retired battery are respectively connected with a bypass in parallel, monomer management units are installed on the bypasses and used for controlling charging and discharging of the batteries, and each monomer management unit comprises a battery driving board and a battery control board which are electrically connected;
the positive and negative electrodes of the in-service battery and the out-of-service battery are electrically connected to the corresponding battery driving boards, and all the battery control boards are electrically connected to the mainboard.
The battery driving board is used for responding to a control signal transmitted by the battery control board to drive an in-service battery or a retired battery connected with the battery driving board to be disconnected or connected and collecting a current voltage value of the battery connected with the battery driving board;
the battery control board is used for receiving the current and voltage values collected by the battery drive board, estimating the battery capacity according to the current and voltage values, and feeding back the estimated value and the voltage value of the battery capacity to the mainboard; the battery driving board is used for transmitting a control signal output by the mainboard to the battery driving board;
and the mainboard is used for comparing the estimated value and the voltage value of the battery capacity with the preset value, judging whether to generate a control signal or not, and respectively outputting the generated control signal to the corresponding battery control panel.
Furthermore, the battery control board comprises a DSP controller used for outputting two paths of complementary signals to the battery drive board;
the battery driving board comprises a series MOSFET connected with one of the two complementary signals and a bypass MOSFET connected with the other of the two complementary signals, and an in-service battery or a retired battery connected with the battery driving board is connected between the series MOSFET and the bypass MOSFET.
Furthermore, the battery control board further comprises an optical coupling isolation circuit connected with the DSP controller, and two paths of complementary signals output by the DSP controller are transmitted to the battery control board after passing through the optical coupling isolation circuit.
Further, the in-service battery and the retired battery are both provided with a voltage detection sensor and a current detection sensor, the voltage detection sensor and the current detection sensor are electrically connected to the battery driving board, and the battery driving board collects the voltage and the current of the corresponding battery through the voltage detection sensor and the current detection sensor.
Furthermore, temperature sensors are embedded in the outer walls of the in-service battery and the ex-service battery, the temperature sensors are electrically connected to the battery driving board, and the battery driving board is used for collecting temperature values of the corresponding batteries through the temperature sensors and feeding back the temperature values to the battery control board.
Furthermore, a safety switch and a main control device are installed on a circuit between the in-service battery and the power switch and a circuit between the ex-service battery and the power switch, the mainboard is installed in the main control device, and the mainboard is provided with a remote communication module.
Furthermore, each monomer management unit is respectively installed in a control box, an electric fan, a touch screen and an emergency stop button are embedded in the control box, the touch screen and the emergency stop button are connected to the mainboard, and the touch screen is used for setting system parameters and battery parameters, displaying, storing and managing information and operating records; the battery control board receives the temperature information and compares the temperature information with a preset safe temperature value, and the electric fan is started and stopped according to the temperature information.
Furthermore, the mainboard is connected with each battery control panel through an RS485 bus, and the mainboard comprises a DSP controller.
The utility model discloses beneficial effect who has:
1. each battery is additionally provided with a monomer management unit, and the individual, customized and high-complexity intelligent management of a single battery in the battery pack is realized through the charge-discharge circuit bypass management and control, so that the characteristics that the performance of the single battery is not changed and the performance of the battery pack is greatly improved are achieved; through battery monomer independent control, protect the monomer battery, avoid monomer battery charge-discharge excessive pressure, under-voltage, restrain the influence of monomer degradation battery to whole group battery, extension group battery life, group battery stability is higher to can realize the reuse of retired battery.
2. Through setting up temperature sensor, the temperature value of real-time response retired battery to send the temperature information value for the battery control panel and handle, the battery control panel compares abnormal temperature information with the temperature value of prestoring, and opens the start-stop operation to electric fan, avoids the battery overheat damage.
3. The system can adopt a serial redundancy mode of N + X batteries, allows the maximum serial connection of 4 batteries on the basis of one group of 24 batteries, and still has the standby capacity of two groups of 48 batteries even if the 4 batteries are invalid; or, a parallel redundancy mode of two groups of batteries (each group of 24+ 4) can be adopted, the original standby capacity is still kept under the condition that 6 batteries are invalid, and all 54 batteries allow new and old batteries to be used together, so that the use cost of the batteries is greatly reduced.
4. The system has a power supply conversion function, and can keep the output voltage unchanged even if the battery monomer abnormally exits the whole group of operation in the discharging process, so that the normal operation of the power supply of the electric equipment is ensured; in the charging process, the charging voltage and the charging current are automatically adjusted to keep the other batteries to be charged normally, so that when a deteriorated battery or a fault battery exists in the battery pack, the system can realize the normal charging and discharging function, and the system is ensured not to lose the standby function due to the abnormity of individual batteries. The traditional moving ring system detects that the battery is abnormal and needs emergency response, and immediately processes and replaces the battery, and in the system, the influence on standby power is limited when the individual battery is abnormal, so that immediate processing is not needed, periodic centralized processing can be performed, and the system maintenance cost is greatly reduced.
5. The system can realize the autonomous management of the battery pack, fully utilize the ex-service battery, provide necessary support for the in-service battery, allow the characteristics of single batteries in the battery pack to have certain difference, support the mixed use of new and old batteries and the mixed use of different types of batteries with different models, improve the service life of the in-service battery on one hand, reasonably save resources on the other hand, realize the recycling of the ex-service battery and integrally reduce the operation and maintenance cost of the base station battery.
6. The system has a remote monitoring function, all equipment can be remotely networked, remote centralized management and equipment maintenance are realized, multiple media can be used for inquiring and operating the running states and parameters of any one piece of online equipment and all batteries under different authorities through the remote main control equipment, man-machine interaction can be realized, and unattended intelligent management of the retired batteries of the base station is realized.
Drawings
Fig. 1 is a schematic structural diagram of an in-service battery management system.
Fig. 2 is a schematic diagram of a system structure according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of the management and control circuit of the single battery of the present invention.
Fig. 4 is a schematic circuit diagram of a battery driving board according to an embodiment of the present invention.
Fig. 5 is a schematic circuit diagram of a battery control board according to an embodiment of the present invention.
Reference numerals: 1-in-service battery, 10-retired battery, 2-commercial power, 3-power switch, 4-safety switch, 5-communication equipment, 6-master control equipment, 7-monomer management unit and 8-remote communication module.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
As shown in fig. 2 to 5, the present embodiment provides an intelligent management system for a retired battery of a base station, including a motherboard, a plurality of retired batteries 10 connected in series with an in-service battery 1, and a power switch 3, where each of the in-service battery 1 and the retired battery 10 is respectively connected in parallel with a bypass, each bypass is provided with a single management unit 7 for performing charge and discharge control on the battery, and the single management unit 7 includes a battery driving board and a battery control board that are electrically connected;
the positive and negative electrodes of the in-service battery 1 and the retired battery 10 are electrically connected to corresponding battery control boards, and all the battery control boards are electrically connected to a mainboard.
The battery driving board is used for responding to a control signal transmitted by the battery control board to drive an in-service battery 1 or a retired battery 10 connected with the battery driving board to be disconnected or connected and collecting a current voltage value of the battery connected with the battery driving board;
the battery control board is used for receiving the current and voltage values collected by the battery drive board, estimating the battery capacity according to the current and voltage values, and feeding back the estimated value and the voltage value of the battery capacity to the mainboard; the battery driving board is used for transmitting a control signal output by the mainboard to the battery driving board;
and the mainboard is used for comparing the estimated value and the voltage value of the battery capacity with the preset value, judging whether to generate a control signal or not, and respectively outputting the generated control signal to the corresponding battery control panel.
Furthermore, the battery control board comprises a DSP controller used for outputting two paths of complementary signals to the battery drive board; the battery driving board comprises a series MOSFET connected with one of the two complementary signals and a bypass MOSFET connected with the other of the two complementary signals, and an in-service battery 1 or a retired battery 10 connected with the battery driving board is connected between the series MOSFET and the bypass MOSFET. Specifically, as shown in fig. 4, one of the two complementary signals is connected to the G pole of the series MOSFET, and the other of the two complementary signals is connected to the G pole of the bypass MOSFET; the anode of the ex-service battery 10 or the in-service battery 1 is connected with the S pole of the series MOSFET, and the cathode of the ex-service battery 1 or the in-service battery 10 is connected with the S pole of the bypass MOSFET; the D-pole of the series MOSFET is connected to the D-pole of the shunt MOSFET.
Furthermore, the battery control board further comprises an optical coupling isolation circuit connected with the DSP controller, and two paths of complementary signals output by the DSP controller are transmitted to the battery control board after passing through the optical coupling isolation circuit. Two paths of complementary signals can be isolated through the optical coupling isolation circuit, and signal interference caused by connection with electricity is prevented.
The working principle of the system is as follows: as shown in fig. 5, the battery driving board collects voltage signals and current signals of the battery and then sends the voltage signals and the current signals to the battery control board, the battery control board estimates the battery capacity by adopting an ampere-hour integration method according to the received voltage signals and current signals, and then sends the estimated value of the battery capacity and the voltage signals to the motherboard; the mainboard judges whether the battery needs switching control or not according to the estimated value of the battery capacity and the battery voltage signal, and transmits the switching signal to the battery control panel; the battery control board performs single battery switching control, and drives some retired batteries 10 to be connected in series to the circuit of the in-service battery 1 through the battery drive board or cut off from the circuit of the in-service battery 1. Specifically, as shown in fig. 4, when the series MOSFET is turned off and the bypass MOSFET is turned on, the corresponding single battery is in an off state, and the battery pack is cut out. Otherwise, when the series MOSFET is closed and the bypass MOSFET is open, the battery is connected to the battery pack for series output voltage.
As shown in fig. 2, there are 24 batteries 1 in service, and 8 additional batteries 10 in service are connected in series to the two battery circuits. The battery management unit 7 of each battery can independently switch and drive 24+8 single batteries, the battery drive board collects battery information such as a battery voltage value, a battery current value and the like and sends the battery information to the battery control board, and the battery control board estimates the battery capacity according to the battery information and is matched with the mainboard to realize the switching control of the single batteries. The mainboard and the control board can automatically and intelligently control the battery pack and carry out thermal management on the battery pack, so that intelligent battery control, battery capacity estimation, battery activation function and remote monitoring are realized. During charging, 53V voltage is input, and the charging current is automatically adjusted according to the voltage of the battery. The voltage is stabilized at 48V during discharging, and the maximum discharging current supports 60A and 120A.
The specific switching control process is as follows:
the capacity of a single battery directly reflects the battery voltage, and when the battery voltage is lower than the lowest discharge threshold voltage (1.4V), the battery capacity is already low and is not suitable for continuous discharge. When the battery voltage is higher than the threshold voltage (2V), the battery capacity is fully charged, the battery is not suitable for large-current charging, and small-current floating charging can be carried out. Within the threshold value range, the single battery has proper capacity and can carry out normal charge and discharge operation. And in the normal threshold range, the single batteries are all put into a normal charge-discharge state. During charging, when the voltage of the single battery is higher than the threshold voltage (2V), the bypass circuit of the single battery is closed, and the single battery is short-circuited and does not perform charging operation. In the discharging process, when the voltage of the in-service battery 1 is lower than the threshold voltage (1.4V), the bypass circuit of the in-service battery 1 is closed, the in-service battery 1 is not subjected to discharging operation due to short circuit, in order to ensure that the battery pack outputs 48V, the redundant ex-service battery 10 can be put into the battery pack to discharge, and the output voltage of the battery pack passes through the voltage stabilizing module, so that the stable 48V voltage is output to electric equipment of the iron tower base station. When the voltage of the retired battery 10 is between 1.4V and 2V, the retired battery 10 is put into normal use. The independent control of the in-service battery 1 meets the requirement that the ex-service battery is put into 24V totally, so that the output voltage of the battery pack is 48V or close to 48V, the voltage is output to the voltage stabilizing module, and the voltage stabilizing module outputs the stabilized 48V voltage to the iron tower base station equipment.
The intelligent control method provided by the system supports the mixed use of new batteries and old batteries and the mixed use of batteries of different brands. The system performs independent charge and discharge control on the single battery, is different from the existing battery pack redundancy backup system, can avoid overcharge or overdischarge of the single battery, further realizes long standby time of the battery pack, and prolongs the service life of the battery pack.
The main technical characteristics of the system are as follows:
(1) virtual battery: under the condition that the battery pack with 24 single batteries is normally discharged, through internal electric energy conversion control, at most 50% of the battery cells are supported to exit the discharging process, so that the battery cells are maintained in an out-of-line state, and the virtual management of the battery pack is realized. In the conventional discharging process, the single batteries in the storage battery pack lose discharging capacity as long as any one battery in the battery pack is exhausted or damaged due to the characteristics and differences of individual natural unbalance, such as single capacity deviation, single damage and the like. After the system is adopted, the system supports that at most 50% of the batteries can exit the discharging process according to the running condition in the running process of the system. In order to ensure the use requirements of users on batteries, the system can still keep the characteristics of the single battery pack of 24 batteries when at most 50 percent of the batteries do not work online through internal electric energy conversion control, and external users can still use the battery pack of 24 batteries normally.
(2) Intelligent charging: in the charging process, the battery monomer in the battery pack is intelligently managed on line, so that the problems of overcharge damage and undercharge salinization of the battery monomer are fundamentally solved. In the conventional charging mode, when the individual batteries are undercharged or overcharged in the battery pack, in order to ensure that the capacity of all the batteries of the battery pack is effectively utilized, the individual batteries are overcharged to fully charge the rest batteries, namely, the equalizing charging mode is adopted, and the problem that the overcharged batteries are easily damaged early and then the undercharged batteries are salinized and failed in the past is solved.
After the system is adopted, in the charging process, the charging of the battery pack does not need to be controlled by equalizing charging through the control of the intelligent battery monomer. The intelligent switching is carried out on the single batteries in the battery pack, the batteries which are qualified in charging can be cut off from the battery pack in advance, and the rest batteries are continuously charged until the last battery, so that all the single batteries in the battery pack are qualified in charging, and the battery pack thoroughly abandons the harm of undercharging or overcharging. The problems of overcharge damage and undercharge salinization of the battery pack unit are fundamentally solved.
The system has the self-management function of the battery pack, realizes the timed and quantitative automatic discharging and charging processes by utilizing the running load in the normal running state, automatically realizes the periodic capacity checking function on the basis of ensuring the running reliability of the battery, and realizes the real-time effective monitoring of the battery pack and the single body thereof. Most of the existing battery management systems can only estimate the capacity and the service life of the battery, and once estimation errors occur, the standby battery system is very easy to cause use in actual needs, the battery is found to be abnormal, and the use condition cannot be met.
(3) N + X redundancy integrated: the normal charge and discharge function of the battery pack with the single N + X batteries can be realized on the premise of ensuring that the original charging equipment and the load are not changed due to the use of the virtual batteries and the flexible charging technology, and the normal standby capability of the standby battery pack can still be realized under the condition that the X batteries are damaged at most in the battery pack. Specifically, a 24+ X single-battery series redundancy mode can be adopted, a maximum of 4 batteries can be connected in series on the basis of one 24-battery group, and the standby capacity of two 48 batteries can still be achieved even if the 4 batteries fail. Or, a parallel redundancy mode of two groups of batteries (each group of 24+ 4) can be adopted, the original standby capacity is still kept under the condition that 6 batteries are invalid, and all 54 batteries allow new and old batteries to be used together, so that the use cost of the batteries is greatly reduced.
After the system is adopted, the redundancy cost of a single battery can be used for replacing the redundancy cost of the battery pack to realize the same standby redundancy effect, and meanwhile, the same standby redundancy capability can be realized under the condition of low redundancy cost, and higher standby redundancy capability can also be realized under the same redundancy cost. In the traditional standby battery system, in order to ensure the redundancy reliability of the battery pack, a 1+1 standby mode is mostly adopted, namely, a group of batteries are standby outside the battery pack which is normally used; in the system, a 24+ X mode can be adopted, namely, on the basis of 24 batteries of a normal group of batteries, the standby capacity of the normal 24 batteries can still be realized under the condition that the maximum X batteries of the group of batteries fail by allowing the maximum X batteries to be increased.
Example 2
Further, the embodiment provides a specific way for remotely monitoring battery information, wherein both the in-service battery 1 and the retired battery 10 are provided with a voltage detection sensor and a current detection sensor, the voltage detection sensor and the current detection sensor are electrically connected to a battery driving board, and the battery driving board acquires voltage and current of a corresponding battery through the voltage detection sensor and the current detection sensor; temperature sensors are embedded in the outer walls of the in-service battery 1 and the ex-service battery 10 and electrically connected to the battery driving board, and the battery driving board is used for collecting temperature values of the corresponding batteries through the temperature sensors and feeding back the temperature values to the battery control board. Specifically, the temperature sensor is PT-100, and the temperature of the single battery can be monitored in real time by arranging the temperature sensor, and the temperature of 50 ℃ below zero to 100 ℃ can be monitored.
Fig. 2 shows the whole structure of the system, the safety switch 4 and the main control device 6 are installed on the circuit between the in-service battery 1 and the ex-service battery 10 and the power switch 3, the main board and the battery control board are installed in the main control device 6, and the main board is provided with the remote communication module 8. The mainboard is provided with a 4G remote wireless communication module, realizes data transmission with the mainboard through a wireless communication terminal, and then realizes monitoring of the retired battery intelligent management system.
Example 3
Further, on the basis of the above embodiment, the present embodiment provides a mounting manner of the cell management unit 7. Each monomer management unit 7 is respectively installed in a control box, an electric fan, a touch screen and an emergency stop button are embedded in the control box, the touch screen and the emergency stop button are connected to a mainboard, the touch screen is used for setting management system parameters, battery parameters, fault information, software version information and operation records, and the model of the touch screen is Kunlun Tong TPC. The emergency stop button is used for emergency power-off protection in abnormal conditions, and when the abnormal conditions occur, an operator beats the emergency stop button to stop the single management unit 7 to work. The mainboard in the control box has the output voltage steady voltage function, is connected the steady voltage to the electrical equipment of base station through the cable, for the electrical equipment of base station provides stable 48V direct current voltage, output current ability 60A and 120A optional. Specifically, the control box front panel inlays and is equipped with touch-sensitive screen and scram button, and the side panel inlays and is equipped with electric fan, and binding post has all been seted up at upper and lower top and has been used for connecting positive negative pole of battery cell and basic station consumer. The control box can firmly be fixed in the battery mounting bracket through the bolt, and the touch-sensitive screen is connected to the mainboard, can realize the other mutual of man-machine information machine, and basic station retired battery unmanned on duty intelligent management.
Furthermore, the battery control board receives the temperature information and compares the temperature information with a preset safe temperature value, and the electric fan is started and stopped according to the temperature information. The temperature value of battery is responded to in real time through temperature sensor to give the battery control panel and handle, the battery control panel compares unusual temperature information with the safe operating temperature numerical value of prestoring, and opens the start-stop operation to electric fan through output control unit, so that cool down the battery.
Furthermore, the mainboard is connected with each battery control panel through an RS485 bus, a DSP is arranged in each battery control panel, and the model of the DSP in each battery control panel is TMS320F 28035.
The working process is as follows: the battery driving board is used for switching and driving the single batteries, collecting battery information such as battery voltage values, current values and temperature values and transmitting the battery information to the battery control board. And the battery control board estimates the battery capacity after receiving the battery information, performs switching control on the single battery, and starts and stops the electric fan according to the temperature information. The mainboard is connected with the battery control panel and the touch screen of each battery monomer, and an RS485 bus is adopted to receive information of each battery control panel and transmit battery switching signals. The mainboard transmits the information of each battery control panel to the touch screen for split-screen display and receives the parameter setting information of the touch screen, and the mainboard transmits the information of the battery management system to the wireless communication terminal.
The circuit connections of the individual electrical components in the present document are known to the person skilled in the art, so that the control and the circuit connections are not explained in detail in this application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (9)
1. A base station retired battery intelligent management system is characterized by comprising a mainboard, a plurality of retired batteries (10) connected with in-service batteries (1) in series and a power switch (3), wherein each in-service battery (1) and each retired battery (10) are respectively connected with a bypass in parallel, a monomer management unit (7) is installed on each bypass and used for controlling charging and discharging of the batteries, and each monomer management unit (7) comprises a battery driving board and a battery control board which are electrically connected;
the positive and negative electrodes of the in-service battery (1) and the ex-service battery (10) are electrically connected to the corresponding battery driving boards, and all the battery control boards are electrically connected to the mainboard.
2. The system for intelligent management of ex-service batteries for base stations according to claim 1,
the battery driving board is used for responding to a control signal transmitted by the battery control board to drive an in-service battery (1) or a retired battery (10) connected with the battery driving board to be disconnected or connected and collecting a current voltage value of the battery connected with the battery driving board;
the battery control board is used for receiving the current and voltage values collected by the battery drive board, estimating the battery capacity according to the current and voltage values, and feeding back the estimated value and the voltage value of the battery capacity to the mainboard; the battery driving board is used for transmitting a control signal output by the mainboard to the battery driving board;
and the mainboard is used for comparing the estimated value and the voltage value of the battery capacity with the preset value, judging whether to generate a control signal or not, and respectively outputting the generated control signal to the corresponding battery control panel.
3. The system for intelligent management of base station retired batteries according to claim 2,
the battery control board comprises a DSP controller and is used for outputting two paths of complementary signals to the battery drive board;
the battery driving board comprises a series MOSFET connected with one of the two complementary signals and a bypass MOSFET connected with the other of the two complementary signals, and an in-service battery (1) or a retired battery (10) connected with the battery driving board is connected between the series MOSFET and the bypass MOSFET.
4. The system of claim 3, wherein the battery control board further comprises an optical coupling isolation circuit connected to the DSP controller, and two complementary signals output by the DSP controller are transmitted to the battery driving board after passing through the optical coupling isolation circuit.
5. The system for intelligent management of ex-service batteries for base stations as claimed in claim 2, wherein said in-service batteries (1) and ex-service batteries (10) are provided with voltage detection sensors and current detection sensors, said voltage detection sensors and current detection sensors are electrically connected to said battery driving board, said battery driving board collects the voltage and current of corresponding batteries through voltage detection sensors and current detection sensors.
6. The system for intelligently managing the retired battery of a base station as claimed in claim 5, wherein the external walls of the in-service battery (1) and the retired battery (10) are embedded with temperature sensors, the temperature sensors are electrically connected to the battery driving board, and the battery driving board is used for collecting the temperature value of the corresponding battery through the temperature sensors and feeding back the temperature value to the battery control board.
7. The system for intelligent management of the retired battery of a base station as claimed in claim 1, wherein the circuit between the in-service battery (1) and the retired battery (10) and the power switch (3) is provided with a safety switch (4) and a main control device (6), the motherboard is installed in the main control device (6), and the motherboard is provided with a remote communication module (8).
8. The intelligent management system for the retired battery of the base station as claimed in claim 1, wherein each of the individual management units (7) is installed in a control box, an electric fan, a touch screen and an emergency stop button are embedded in the control box, the touch screen and the emergency stop button are connected to the motherboard, and the touch screen is used for setting system parameters and battery parameters, and displaying, storing and managing information and operation records; and the battery control board is used for receiving the temperature information, comparing the temperature information with a preset safe temperature value, and starting and stopping the electric fan according to the temperature information.
9. The system for intelligently managing the retired battery of a base station as claimed in claim 1, wherein the motherboard is connected to each battery control board by an RS485 bus; the mainboard comprises a DSP controller.
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| CN202020357511.XU CN211605342U (en) | 2020-03-20 | 2020-03-20 | Base station retired battery intelligent management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261961A (en) * | 2020-03-20 | 2020-06-09 | 北京轩宇空间科技有限公司 | Base station retired battery intelligent management system |
| CN112564279A (en) * | 2020-11-26 | 2021-03-26 | 广西电网有限责任公司防城港供电局 | Remote storage battery nuclear capacity test bypass device and control method thereof |
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2020
- 2020-03-20 CN CN202020357511.XU patent/CN211605342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261961A (en) * | 2020-03-20 | 2020-06-09 | 北京轩宇空间科技有限公司 | Base station retired battery intelligent management system |
| CN112564279A (en) * | 2020-11-26 | 2021-03-26 | 广西电网有限责任公司防城港供电局 | Remote storage battery nuclear capacity test bypass device and control method thereof |
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