CN112816896A - Dual-power direct-current system battery pack remote nuclear capacity control system and control method - Google Patents
Dual-power direct-current system battery pack remote nuclear capacity control system and control method Download PDFInfo
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- CN112816896A CN112816896A CN202110121124.5A CN202110121124A CN112816896A CN 112816896 A CN112816896 A CN 112816896A CN 202110121124 A CN202110121124 A CN 202110121124A CN 112816896 A CN112816896 A CN 112816896A
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- 238000004891 communication Methods 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 22
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- 238000012360 testing method Methods 0.000 description 17
- 238000012423 maintenance Methods 0.000 description 5
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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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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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
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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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Abstract
The invention discloses a remote capacity checking system for a battery pack of a dual-power direct-current system, which comprises: the front-end acquisition module is used for monitoring and acquiring the information of the battery pack; the transmission module is used for receiving the battery pack information acquired by the front-end acquisition module and transmitting the battery pack information; the back-end operation platform receives the battery pack information transmitted by the transmission module and carries out remote debugging control; the front-end acquisition module comprises a host, a data convergence device, a single battery acquisition module and a video acquisition module; the transmission module comprises a protocol conversion module and a safety routing module, the host is connected with the protocol conversion module, and the protocol conversion module is connected with the safety routing module; the back-end operation module comprises a server and an operation platform, the operation platform is connected with the server, and the server is connected with the safe routing module. The invention further provides a remote capacity checking control method for the battery pack of the dual-power direct-current system. The invention feeds the battery pack power back to the power grid, realizes remote nuclear capacity discharge, and has simple operation and control and good reliability.
Description
Technical Field
The invention relates to the technical field of storage battery nuclear capacity, in particular to a remote nuclear capacity control system and a remote nuclear capacity control method for a battery pack of a dual-power direct-current system.
Background
The daily work of the operation and maintenance management of the storage battery comprises the following contents: 1. measuring the float voltage of the battery: testing the float charge voltage of each battery by using a universal meter, wherein the voltage is controlled within the range of 2.24V +/-90 mV; 2. measuring the total voltage of the battery pack: testing the voltage of the storage battery pack by using a universal meter, wherein the actually measured total voltage of the storage battery pack is close to the set value (within +/-1%) of a manufacturer; 3. measuring the internal resistance of the battery: testing the internal resistance of each storage battery by using an internal resistance meter, wherein the internal resistance value is not greater than the reference value range provided by a storage battery manufacturer; 4. testing the capacity of the storage battery: and (3) carrying out capacity test on the battery pack by using a storage battery pack charge-discharge instrument, wherein the capacity of the battery pack still cannot reach 80% of the whole battery pack after three times of nuclear capacity test. When a storage battery pack is newly installed, a full-check discharge test should be performed. A check discharge test was performed every two years thereafter. The storage battery pack after four years is operated, and a check discharge test is performed every year.
The common solutions for the above work are: for the dummy load scheme, the traditional dummy load charging and discharging equipment is automatically connected into the battery pack through the switching device, so that the charging and discharging test is completed, and the heating and power consumption are high. The DC/DC boosting scheme of the battery pack is adopted, the DC/DC boosting is used for enabling an actual load to discharge the battery pack in a constant current mode, the nuclear capacity test is achieved, heat is not generated, the environment is protected, the battery pack is charged in a PWM current-limiting mode, and the constant current and the constant voltage in the charging process of the battery pack are guaranteed; the DC/AC conversion scheme of the battery pack utilizes a power supply technology to invert direct current of a battery into alternating current, and provides alternating current type load (commercial power load) consumption so as to achieve the purpose of charging and discharging.
The existing operation and maintenance management work has the following problems: the positive and negative electrodes of the battery pack are disassembled, so that short-circuit accidents can be caused due to improper operation; one group of spare batteries is omitted in the system, the quality of the other group of spare batteries is not clear, and the system paralysis risk is high; after discharging, the two groups of batteries have larger voltage difference, and huge sparks are generated when the batteries are recovered in parallel; the electric energy of the battery is completely dissipated and consumed through dummy load heat dissipation, and the existence of a heat source is an unsafe factor; the energy stored by a battery and the refrigeration electric energy of the air conditioner are wasted; destroying the operating environment of the battery and the equipment; the charging and discharging time is long, maintenance personnel are required to guard constantly, the strength is high, and the efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and discloses a remote core-capacitor control system and a remote core-capacitor control method for a battery pack of a dual-power direct-current system.
The technical scheme adopted by the invention is as follows:
long-range nuclear of dual supply direct current system battery group holds control system includes:
the front-end acquisition module is used for monitoring and acquiring the information of the battery pack;
the transmission module is used for receiving the battery pack information acquired by the front-end acquisition module and transmitting the battery pack information;
the back-end operation platform receives the battery pack information transmitted by the transmission module and carries out remote debugging control;
the front-end acquisition module comprises a host, a data convergence device, a single battery acquisition module and a video acquisition module, wherein the single battery acquisition module is arranged on the battery pack, the output ends of the single battery acquisition module and the video acquisition module are connected with the data convergence device, and the output end of the data convergence device is connected with the host;
the transmission module comprises a protocol conversion module and a safety routing module, the host is connected with the protocol conversion module, and the protocol conversion module is connected with the safety routing module;
the back-end operation module comprises a server and an operation platform, the operation platform is connected with the server, and the server is connected with the safe routing module.
The further technical scheme of the invention is as follows: the front-end acquisition module further comprises:
the intelligent bus connection module and the full online switching module; the output end of the host is connected with the all-on-line switching module, and the output end of the all-on-line switching module is connected with the intelligent bus coupler module.
The further technical scheme of the invention is as follows: the front-end acquisition module is provided with a positive busbar, a negative busbar and a 220V system switching power supply; the main machine is connected with the positive busbar and the negative busbar, the output end of the positive busbar is connected with an electric load and a 220V system switching power supply, the negative busbar is connected with the electric load and the negative end of the 220V system switching power supply, the positive electrode of the battery pack module is connected with the positive output end of the main machine, the battery pack module is connected with the single battery monitoring module, the output end of the single battery monitoring module is connected with the data convergence device, the output end of the data convergence device is connected with the input end of the main machine, and the main machine is provided with a communication interface; the main machine is connected with a power grid through a three-phase four-wire system wiring.
Further, the host adopts a controller of ZJTX-30050 model.
The further technical scheme of the invention is as follows: the intelligence bus-tie module includes:
the battery pack comprises a battery pack module 401, a DC/AC inversion discharging module and a nuclear capacity load module; the output end of the positive electrode of the battery pack module is connected with a DC/AC inversion discharging module, and the output end of the DC/AC inversion discharging module is connected with a power grid;
the positive end of the battery pack module is connected with the positive input end of the DC/AC inversion discharging module, and the negative end of the battery pack is connected with the negative input end of the DC/AC inversion discharging module through a second normally open contactor;
the nuclear capacity load module comprises a rectifier and an electric load, the negative end of the rectifier is connected with the negative end of the battery pack, the positive end of the rectifier is connected with the negative end of the all-on-line switching module, and the electric load is arranged at two ends of the rectifier in parallel.
The further technical scheme of the invention is as follows: the intelligent bus tie module further comprises: the input end of the charging module is connected with the first normally open contactor, and the output end of the charging module is connected with the positive end of the rectifier.
The further technical scheme of the invention is as follows: the all-online switching module comprises a first switch and a freewheeling diode; the first switch is connected with the freewheeling diode in parallel, the negative pole end of the freewheeling diode is connected with the input end of the charging module, and the positive pole end of the freewheeling diode is connected with the output end of the charging module through the first normally-open contactor.
Further, the communication interface comprises a wired communication interface and a wireless communication interface, the wired communication interface is an RS232/RS485/IP communication interface, and the wireless communication interface is a 4G/5G/Bluetooth/wifi communication interface.
The invention also provides a remote capacity checking control method for the battery pack of the dual-power direct-current system, which comprises the following steps:
the method comprises the steps that a front-end acquisition module is controlled to monitor and acquire information of a battery pack, wherein a single battery acquisition module acquires the information of the battery pack and transmits the information to a data convergence device, a video acquisition module acquires images of the battery pack and transmits the images to the data convergence device, and the data convergence device transmits the received information of the battery pack and image information to a host;
the transmission module transmits the received battery pack information and the received picture information acquired by the front-end acquisition module after the battery pack information and the picture information are processed by the protocol conversion module and the safety routing module;
and the rear-end operation platform receives the battery pack information and the picture information transmitted by the transmission module, analyzes the battery pack information and the picture information and generates an execution instruction.
The invention has the beneficial effects that:
in the embodiment of the invention, the electric quantity of the battery pack is fed back to a power grid through an inversion grid-connected technology to ensure that the battery pack discharges at an external constant current, the voltage, the current, the capacity, the voltage, the current, the ambient temperature, the voltage, the internal resistance and the temperature of a cathode pole of the battery pack are monitored through the single battery monitoring module, the detected data are collected through the data convergence device and then transmitted to the host through the data convergence device to be displayed and controlled, and the host receives the monitored data of the data convergence device to control the full-on-line switching module to discharge and charge the intelligent bus-connected module.
Drawings
Fig. 1 is a structural diagram of a remote nuclear capacity control system of a battery pack of a dual-power direct-current system according to the present invention;
fig. 2 is a structural diagram of the front-end acquisition module according to the present invention;
fig. 3 is a structural diagram of a control circuit of the front-end acquisition module according to the present invention.
Fig. 4 is a circuit structure diagram of the intelligent bus tie module according to the present invention;
fig. 5 is a flowchart of a remote control method for checking the capacity of a battery pack of a dual-power-supply dc system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "first", "second", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the dual power supply dc system battery pack remote nuclear capacity control system includes:
the front-end acquisition module 10 is used for monitoring and acquiring information of the battery pack;
the transmission module 20 receives and transmits the battery pack information acquired by the front-end acquisition module;
the back-end operating platform 30 is used for receiving the battery pack information transmitted by the transmission module and carrying out remote debugging control;
the front-end acquisition module 10 comprises a host 101, a data convergence device 102, a single battery acquisition module 103 and a video acquisition module 104, wherein the single battery acquisition module 103 is arranged on the battery pack, the output ends of the single battery acquisition module 103 and the video acquisition module 104 are connected with the data convergence device 102, and the output end of the data convergence device 102 is connected with the host 101;
the transmission module 20 comprises a protocol conversion module 201 and a secure routing module 202, the host 101 is connected with the protocol conversion module 201, and the protocol conversion module 201 is connected with the secure routing module 202;
the back-end operation module 30 includes a server 301 and an operation platform 302, the operation platform 302 is connected to the server 301, and the server 301 is connected to the secure routing module 202.
In the invention, the host computer is remotely started or stopped to carry out charging and discharging, and the monomer carries out internal resistance and other tests through a private network. And uploading the monitoring data in real time by the host, and uploading the operation and maintenance data after the test is finished. The single battery monitoring module is attached to the surface of a battery, the internal resistance, the pole temperature and the voltage of a single battery are monitored in real time, monitoring and testing data of single battery blocks are collected, the internal resistance test of the single battery blocks is started, the data are uploaded to a host, a test command of the host is received, the internal resistance of the battery is tested in a specified period, and 1 battery is configured for each battery.
When the battery needs to be discharged and the capacity is checked, the main control sends an instruction, the switching module executes the instruction, the bus of the battery pack needing to be discharged is cut off, the follow current diode is used for ensuring that the battery pack is on line, the switch and the follow current diode are subjected to self-checking before starting, and the operation can be carried out after the self-checking is normal. And after the nuclear capacity test is finished or the bus is in voltage loss, resetting the switching device.
In the embodiment of the invention, the electric quantity of the battery pack is fed back to a power grid through an inversion grid-connected technology to ensure that the battery pack discharges at an external constant current, the voltage, the current, the capacity, the voltage, the current, the ambient temperature, the voltage, the internal resistance and the temperature of a cathode pole of the battery pack are monitored through the single battery monitoring module, the detected data are collected through the data convergence device and then transmitted to the host through the data convergence device to be displayed and controlled, and the host receives the monitored data of the data convergence device to control the full-on-line switching module to discharge and charge the intelligent bus-connected module.
Referring to fig. 2, the front-end acquisition module 10 further includes:
an intelligent bus-tie module 105 and a full online switching module 106;
the output end of the host 101 is connected with an all-on-line switching module 106, and the output end of the all-on-line switching module 106 is connected with an intelligent bus coupler module 105.
Two sets of direct current power supply systems of the electric power substation work independently, each backup storage battery pack is provided, and 2 sets of power supplies can not interfere with each other when the electric power substation works normally. When one set of power supply fails or needs to be overhauled, the bus tie switch needs to be manually switched, and the other set of power supply system is guaranteed to normally supply power to the load of the fault current system. Due to unpredictability of faults and popularization of remote unmanned intelligent operation and maintenance, automatic intelligent standby between backup battery packs of two sets of power supplies is particularly important.
Referring to fig. 4, in the embodiment of the present invention, the front end acquisition module is provided with a positive busbar 107, a negative busbar 108, and a 220V system switching power supply 109; the main machine 101 is connected with an anode busbar 107 and a cathode busbar 108, the output end of the anode busbar 107 is connected with an electric load and a 220V system switching power supply 109, the cathode busbar 108 is connected with the electric load and the cathode end of the 220V system switching power supply 109, the anode of a battery pack module is connected with the anode output end of the main machine, the battery pack module is connected with a single battery monitoring module, the output end of the single battery monitoring module is connected with a data convergence device, the output end of the data convergence device is connected with the input end of the main machine, and the main machine is provided with a communication interface 110; the main machine 101 is connected to the grid through a three-phase four-wire system connection.
In the embodiment of the invention, the host 101 adopts a model ZJTX-30050. The communication interface 110 comprises a wired communication interface and a wireless communication interface, wherein the wired communication interface is an RS232/RS485/IP communication interface, the wireless communication interface is a 4G/5G/Bluetooth/wifi communication interface, and the type data of the specifically set communication interface is subject to actual design.
Referring to fig. 4, in the embodiment of the present invention, the intelligent bus tie module includes:
the system comprises a battery pack module, a DC/AC inversion discharging module and a nuclear capacity load module; the output end of the positive electrode of the battery pack module is connected with a DC/AC inversion discharging module, and the output end of the DC/AC inversion discharging module is connected with a power grid;
the positive end of the battery pack module is connected with the positive input end of the DC/AC inversion discharging module, and the negative end of the battery pack is connected with the negative input end of the DC/AC inversion discharging module through a second normally open contactor;
the nuclear capacity load module comprises a rectifier and an electric load, the negative end of the rectifier is connected with the negative end of the battery pack, the positive end of the rectifier is connected with the negative end of the all-on-line switching module, and the electric load is arranged at two ends of the rectifier in parallel.
After the battery pack discharges, the voltage of the battery pack is far lower than that of the bus, and the discharged battery pack is directly connected to the bus to generate large current impact and even spark. In order to avoid the phenomenon, a charging module is connected between the battery pack and the bus, so that the charging current is controllable. The input end of the charging module is connected with the first normally open contactor, and the output end of the charging module is connected with the positive end of the rectifier.
The all-online switching module comprises a first switch and a freewheeling diode; the first switch is connected with the freewheeling diode in parallel, the negative pole end of the freewheeling diode is connected with the input end of the charging module, and the positive pole end of the freewheeling diode is connected with the output end of the charging module through the first normally-open contactor.
During discharging, the normally closed contactor KO is disconnected, the normally open contactors Km and Kn are closed, and the system enables the storage battery to be merged into a power grid through the DC/AC inversion module, so that the storage battery is discharged to the power grid; when the discharge stopping condition is up, the system automatically changes to a pre-charging state, a steady-flow charging circuit module in the system starts to work, the charging is finished when the charging current is smaller than the floating charging current, the storage battery is directly restored to be on-line, and the rectifier directly charges the storage battery in a floating manner. The system power is taken from the storage battery pack, so that the system work is not influenced by the mains supply, and the uninterrupted power supply of the user load can be ensured after the mains supply is cut off.
The remote nuclear capacity control method for the battery pack of the dual-power direct-current system comprises the following steps of:
step 401, controlling a front-end acquisition module to monitor and acquire information of a battery pack, wherein a single battery acquisition module acquires the information of the battery pack and transmits the information to a data convergence device, a video acquisition module acquires an image of the battery pack and transmits the image to the data convergence device, and the data convergence device transmits the received battery pack information and picture information to a host;
step 402, the transmission module transmits the received battery pack information and picture information acquired by the front-end acquisition module after being processed by the protocol conversion module and the safety routing module;
and 403, the back-end operating platform receives the battery pack information and the picture information transmitted by the transmission module, analyzes the battery pack information and the picture information, and generates an execution instruction.
In the embodiment of the present invention, various changes and specific examples of the dual-power-supply dc-system battery pack remote nuclear capacity control system are also applicable to the dual-power-supply dc-system battery pack remote nuclear capacity control method of the present embodiment, and through the foregoing detailed description of the dual-power-supply dc-system battery pack remote nuclear capacity control system, a person skilled in the art can clearly know the dual-power-supply dc-system battery pack remote nuclear capacity control method of the present embodiment, so for the brevity of the description, detailed description is not given here.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. Long-range nuclear of dual supply direct current system battery group holds control system, its characterized in that includes:
the front-end acquisition module is used for monitoring and acquiring the information of the battery pack;
the transmission module is used for receiving the battery pack information acquired by the front-end acquisition module and transmitting the battery pack information;
the back-end operation platform receives the battery pack information transmitted by the transmission module and carries out remote debugging control;
the front-end acquisition module comprises a host, a data convergence device, a single battery acquisition module and a video acquisition module, wherein the single battery acquisition module is arranged on the battery pack, the output ends of the single battery acquisition module and the video acquisition module are connected with the data convergence device, and the output end of the data convergence device is connected with the host;
the transmission module comprises a protocol conversion module and a safety routing module, the host is connected with the protocol conversion module, and the protocol conversion module is connected with the safety routing module;
the back-end operation module comprises a server and an operation platform, the operation platform is connected with the server, and the server is connected with the safe routing module.
2. The dual power supply direct current system battery pack remote nuclear capacity control system of claim 1, wherein the front end acquisition module further comprises:
the intelligent bus connection module and the full online switching module; the output end of the host is connected with the all-on-line switching module, and the output end of the all-on-line switching module is connected with the intelligent bus coupler module.
3. The remote nuclear capacity control system of the dual-power direct-current system battery pack according to claim 2, wherein the front-end acquisition module is provided with a positive busbar, a negative busbar and a 220V system switching power supply; the main machine is connected with the positive busbar and the negative busbar, the output end of the positive busbar is connected with an electric load and a 220V system switching power supply, the negative busbar is connected with the electric load and the negative end of the 220V system switching power supply, the positive electrode of the battery pack module is connected with the positive output end of the main machine, the battery pack module is connected with the single battery monitoring module, the output end of the single battery monitoring module is connected with the data convergence device, the output end of the data convergence device is connected with the input end of the main machine, and the main machine is provided with a communication interface; the main machine is connected with a power grid through a three-phase four-wire system wiring.
4. The remote nuclear capacity control system of claim 1, wherein the host machine is a controller of model ZJTX-30050.
5. The dual power supply direct current system battery pack remote nuclear capacity control system of claim 2, wherein the intelligent buscouple module comprises:
the system comprises a battery pack module, a DC/AC inversion discharging module and a nuclear capacity load module; the output end of the positive electrode of the battery pack module is connected with a DC/AC inversion discharging module, and the output end of the DC/AC inversion discharging module is connected with a power grid;
the positive end of the battery pack module is connected with the positive input end of the DC/AC inversion discharging module, and the negative end of the battery pack is connected with the negative input end of the DC/AC inversion discharging module through a second normally open contactor;
the nuclear capacity load module comprises a rectifier and an electric load, the negative end of the rectifier is connected with the negative end of the battery pack, the positive end of the rectifier is connected with the negative end of the all-on-line switching module, and the electric load is arranged at two ends of the rectifier in parallel.
6. The dual power supply direct current system battery pack remote nuclear capacity control system of claim 5, wherein the intelligent buscouple module further comprises: the input end of the charging module is connected with the first normally open contactor, and the output end of the charging module is connected with the positive end of the rectifier.
7. The dual-power direct-current system battery pack remote nuclear capacity control system of claim 2, wherein the all-online switching module comprises a first switch and a freewheeling diode; the first switch is connected with the freewheeling diode in parallel, the negative pole end of the freewheeling diode is connected with the input end of the charging module, and the positive pole end of the freewheeling diode is connected with the output end of the charging module through the first normally-open contactor.
8. The dual-power direct-current system battery pack remote nuclear capacity control system of claim 3, wherein the communication interface comprises a wired communication interface and a wireless communication interface, the wired communication interface is an RS232/RS485/IP communication interface, and the wireless communication interface is a 4G/5G/Bluetooth/wifi communication interface.
9. The dual-power direct-current system battery pack remote nuclear capacity control system according to any one of claims 1 to 8, wherein the dual-power direct-current system battery pack remote nuclear capacity control method comprises the following steps:
the method comprises the steps that a front-end acquisition module is controlled to monitor and acquire information of a battery pack, wherein a single battery acquisition module acquires the information of the battery pack and transmits the information to a data convergence device, a video acquisition module acquires images of the battery pack and transmits the images to the data convergence device, and the data convergence device transmits the received information of the battery pack and image information to a host;
the transmission module transmits the received battery pack information and the received picture information acquired by the front-end acquisition module after the battery pack information and the picture information are processed by the protocol conversion module and the safety routing module;
and the rear-end operation platform receives the battery pack information and the picture information transmitted by the transmission module, analyzes the battery pack information and the picture information and generates an execution instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121124.5A CN112816896A (en) | 2021-01-28 | 2021-01-28 | Dual-power direct-current system battery pack remote nuclear capacity control system and control method |
Applications Claiming Priority (1)
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| CN113824198A (en) * | 2021-11-23 | 2021-12-21 | 北京智芯微电子科技有限公司 | Online capacity checking protection system for power storage battery and control method thereof |
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