CN112467831A - Remote-program online capacity check management system for storage battery pack - Google Patents
Remote-program online capacity check management system for storage battery pack Download PDFInfo
- Publication number
- CN112467831A CN112467831A CN202011292242.4A CN202011292242A CN112467831A CN 112467831 A CN112467831 A CN 112467831A CN 202011292242 A CN202011292242 A CN 202011292242A CN 112467831 A CN112467831 A CN 112467831A
- Authority
- CN
- China
- Prior art keywords
- charging
- preset
- unit
- voltage
- discharging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a storage battery remote-range online core capacity management system, which is respectively connected with an alternating current network and a data acquisition and balance management device, wherein the storage battery and a charger jointly supply power for a direct current load through a bus, and the system comprises: a core capacity management device; the monitoring terminal comprises a nuclear capacity instruction generating part and a monitoring side communication part, the state switching part comprises a thermistor, a normally open contactor and a normally closed contactor, and the nuclear capacity management part comprises a preset parameter storage unit, a charger charging current acquisition unit, an alternating current power grid voltage acquisition unit, a battery operation information acquisition unit, a charging and discharging part charging and discharging current acquisition unit, a discharging duration timing unit, a bus voltage acquisition unit, a parameter judgment control unit, a current judgment unit, a voltage judgment unit, a state switching control unit, a charging and discharging control unit and a discharging duration judgment unit.
Description
Technical Field
The invention belongs to the technical field of storage battery pack maintenance, and particularly relates to a remote-program online capacity check management system for a storage battery pack.
Background
The storage battery pack is used as a backup power supply of the power supply system, and plays an important role in ensuring uninterrupted continuous work of direct current equipment such as a power grid, a communication base station and the like and effectively coping with abnormal mains supply power failure conditions. Therefore, the health condition of the storage battery pack is mastered, the single battery with hidden danger in the storage battery pack is found in time, and the method has very important significance for ensuring the safe and stable operation of a power supply system.
The method for checking the discharge and the capacity of the storage battery pack is the most effective method for checking the performance of the storage battery pack at present, and the current mainstream storage battery discharge and the capacity check methods mainly comprise a traditional off-line discharge method, an on-line actual load discharge method and an on-line inverter network feeding method.
According to the operation maintenance specifications and technical requirements of related storage batteries, a 10-hour discharge method is generally adopted for checking the capacity of a storage battery pack of a direct current system, a newly installed or overhauled valve-regulated storage battery pack is subjected to a full-check discharge test, a check test is performed every 2-3 years later, and a check discharge test is performed every year after the valve-regulated storage battery pack operates for 6 years later.
Traditional off-line discharge methods: the operation and maintenance personnel are required to carry professional discharge instrument equipment to the site for nuclear capacity discharge operation, when the running storage battery pack is discharged, the detected storage battery pack needs to be separated from a direct current standby power system, and meanwhile, the storage battery energy is consumed in modes such as heat energy conduction and the like, so that the storage battery pack cannot be effectively utilized. Therefore, the method not only consumes a large amount of manpower, material resources and financial resources, but also generates great potential safety hazard to the normal operation of the power supply system.
On-line actual load discharge method: conventionally, the voltage of the storage battery pack is boosted to the voltage of a switching power supply through a boosting device, and the direct-current load is supplied with power. At present, according to the requirements of southern power grid power supply technical specifications, a storage battery pack in a transformer substation needs to provide independent power supply for 12 hours, and discharges by adopting an actual load, so that the discharge current is small, the discharge time is long, the 10-hour discharge requirement cannot be met, the capacity of the storage battery pack cannot be accurately estimated, and the health degree of the storage battery pack cannot be quantitatively evaluated.
An online inversion network feeding method: although the method can feed back the energy of the storage battery pack to the power grid through the inverter device, the energy-saving and environment-friendly effects are achieved, the storage battery pack and a system bus have large pressure difference after discharging, and large current impact can occur when the storage battery pack is connected back to a power bus system, so that unstable influences can be caused on a system power supply and load equipment.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a battery pack remote on-line capacity management system that can efficiently perform on-line capacity discharge of a battery pack and safely connect the battery pack back to a bus after the discharge.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a remote on-line capacity check management system of a storage battery pack, which is respectively connected with an alternating current power grid and a data acquisition and balance management device for acquiring battery operation information of the storage battery pack in real time and is used for carrying out capacity check management on the storage battery pack, and the storage battery pack and a charger connected with the alternating current power grid jointly supply power for a direct current load through a bus, and the remote on-line capacity check management system has the characteristics that: the device comprises a storage battery pack, a discharge capacity checking management device, a capacity checking management device and a capacity checking management device, wherein the storage battery pack is used for carrying out discharge capacity checking management on the storage battery pack; and the monitoring terminal is in communication connection with the nuclear capacity device, wherein the nuclear capacity management device comprises a state switch part, a charge and discharge part, a nuclear capacity management part and a management side communication part, the monitoring terminal comprises a nuclear capacity instruction generation part and a monitoring side communication part, the state switch part is arranged between the positive electrode of the storage battery pack and the bus, and comprises a thermistor, a normally open contactor and a normally closed contactor, the thermistor and the normally open contactor are connected in series to form an assembly part which is connected with the normally closed contactor in parallel, the charge and discharge part is respectively connected with the storage battery pack and the alternating current power grid, the nuclear capacity management part comprises a preset parameter storage unit, a charger charging current acquisition unit, an alternating current power grid voltage acquisition unit, a battery operation information acquisition unit, a charge and discharge part charge and discharge current acquisition unit, a discharge duration timing unit, a bus voltage acquisition unit, the device comprises a current judging unit, a voltage judging unit, a state switch control unit, a charge and discharge control unit and a discharge duration judging unit, wherein a preset parameter storage unit stores a preset charger charging current value, a preset alternating current grid voltage range, a preset monomer discharge voltage value, a preset group discharge voltage value, a preset discharge current value, a preset discharge duration value, a preset charge and discharge part charging current value, a first preset interval time value, a second preset interval time value and a preset bus voltage threshold range, the charging current collecting unit is used for collecting the current charged by the charger to a storage battery pack in real time as the charging current, the alternating current grid voltage collecting unit is used for collecting the voltage of the alternating current grid as the alternating current grid voltage, and the battery operation information acquiring unit is used for acquiring the battery operation information from a data acquisition and balance management device in real time through a management side communication part, the battery operation information at least comprises the voltage of a storage battery pack as a pack voltage and the voltage of each battery cell in the storage battery pack as a cell voltage, a charging and discharging part charging and discharging current collecting unit is used for collecting the current of a charging and discharging part in a discharging state of the storage battery pack as a discharging current and the current of the storage battery pack in a charging state as a charging and discharging part charging current in real time, a bus voltage collecting unit is used for collecting the voltage of a bus as a bus voltage in real time, a nuclear capacity instruction generating unit generates a nuclear capacity instruction for carrying out nuclear capacity on the storage battery pack, a monitoring side communication unit sends the nuclear capacity instruction to a nuclear capacity management device, once the management side communication unit receives the nuclear capacity instruction, a parameter judging and controlling unit controls a current judging unit to judge whether the charging current of the charging machine is smaller than a preset charging current value of the charging machine and controls a voltage judging unit to judge, once the charging current of the charger is judged to be smaller than the preset charging current value of the charger and the voltage of the alternating current network is within the preset voltage range of the alternating current network, the state switch control unit controls the normally closed contactor to be switched to a disconnected state, the charge and discharge control unit controls the charge and discharge part to start discharging the storage battery, and simultaneously controls the discharge duration timing unit and the charge and discharge current acquisition unit of the charge and discharge part to work, the parameter judgment control unit controls the voltage judgment unit to judge whether the monomer voltage reaches the preset monomer discharge voltage value and whether the group voltage reaches the preset group discharge voltage value, the control current judgment unit judges whether the discharge current obtained by the charge and discharge current acquisition unit of the charge and discharge part reaches the preset discharge current value, and controls the discharge duration judgment unit to judge whether the discharge duration obtained by the discharge duration timing unit reaches the preset discharge duration value, once any one of the monomer voltage, the group voltage, the discharge current and the discharge time reaches the corresponding preset parameter value, the charge-discharge control unit controls the charge-discharge part to stop discharging the storage battery pack and controls the charge-discharge part to start charging the storage battery pack after a first preset interval time value, the parameter judgment control unit controls the voltage judgment unit to judge whether the group voltage is in a preset bus voltage threshold range of the bus voltage and controls the current judgment unit to judge whether the charge-discharge part charge current obtained by the charge-discharge part charge-discharge current acquisition unit is smaller than a preset charge-discharge part charge current value, and once the group voltage is judged to be in the preset bus voltage threshold range of the bus voltage and the charge-discharge part charge current is smaller than the preset charge-discharge part charge current value, the charge-discharge control unit controls the charge-discharge part to stop charging the storage battery pack, the state switch control unit controls the normally open contactor and the normally closed contactor to be switched to a closed state successively, and controls the normally open contactor to be switched to an open state after a second preset interval time value.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the monitoring terminal comprises a storage unit, a management side communication unit, a monitoring terminal communication unit and an input display unit, wherein the storage unit stores a monitoring picture, the capacity information of the storage battery pack is obtained by the capacity calculation unit according to discharge current, discharge time and cell voltage at the discharge starting and stopping time when the charge and discharge part stops discharging the storage battery pack, the capacity information comprises the discharge capacity of the storage battery pack as the capacity of the storage battery pack and the discharge capacity of each cell as the capacity of the cell, the management side communication unit sends the capacity information to the monitoring terminal, and the input display unit displays the monitoring picture and displays the capacity information in the monitoring picture when the monitoring side communication unit receives the capacity information.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the monitoring terminal also comprises a picture storage part and an input display part, wherein the picture storage part stores a monitoring picture, the monitoring picture is provided with a kernel content key, the input display part displays the monitoring picture and displays the kernel content key in the monitoring picture for a user to select, and once the kernel content key is selected, the kernel content instruction generating part generates a kernel content instruction.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the monitoring terminal further comprises a picture storage part, an input display part and a preset parameter information generation part, the picture storage part stores a preset parameter setting picture, the input display part displays the preset parameter setting picture to enable a user to input each preset parameter value, once the preset parameter picture is confirmed, the preset information generation part generates preset parameter information containing all the preset parameter values, the monitoring side communication part sends the preset parameter information to the nuclear capacity management device, and once the management side communication part receives the preset parameter information, the preset parameter storage unit stores the preset parameter information.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the state switch part also comprises a diode which is connected with the component part and the normally closed contactor in parallel, once the charging and discharging part discharges the storage battery pack, the parameter judgment control unit controls the voltage judgment unit to judge whether the voltage of the alternating current power grid is within a preset alternating current power grid voltage range, and once the voltage of the alternating current power grid is not within the preset alternating current power grid voltage range, the charging and discharging control unit controls the charging and discharging part to stop working.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the monitoring terminal further comprises a picture storage part and an input display part, the picture storage part stores an alarm picture, once the AC power grid voltage is judged not to be within the preset AC power grid voltage range, the power grid abnormal information generation unit generates power grid abnormal information, the management side communication part sends the power grid abnormal information to the monitoring terminal, and once the monitoring side communication part receives the power grid abnormal information, the input display part displays the alarm picture and displays the power grid abnormal information in the alarm picture.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the monitoring terminal further comprises a picture storage part and an input display part, the picture storage part stores an alarm picture, once the charging current of the charger is judged to be not smaller than the charging current value of the preset charger and/or the alternating current grid voltage is not within the preset voltage range of the alternating current grid, the nuclear disallowance information generation unit generates nuclear disallowance information, the management side communication part sends the nuclear disallowance information to the monitoring terminal, and once the monitoring side communication part receives the nuclear disallowance information, the input display part displays the alarm picture and displays the nuclear disallowance information in the alarm picture.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the monitoring terminal also comprises a picture storage part and an input display part, the picture storage part stores a notification picture, once the charge-discharge control unit controls the charge-discharge part to stop charging the storage battery pack, the information generation unit generates the information of the nuclear content completion, the management side communication part sends the information of the nuclear content completion to the monitoring terminal, and once the monitoring side communication part receives the information of the nuclear content completion, the input display part displays the notification picture and displays the information of the nuclear content completion in the notification picture.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the charging and discharging part comprises a bidirectional DC/AC converter, a first state switch and a second state switch, wherein the first state switch and the second state switch are respectively connected with the bidirectional DC/AC converter, the first state switch and the second state switch are respectively connected with the storage battery pack and the alternating current power grid, once the charging current of the charger is judged to be smaller than the charging current value of the preset charger and the voltage of the alternating current power grid is within the voltage range of the preset power grid, the state switch control unit controls the first state switch and the second state switch to be switched to a closed state, and once the voltage of the charger is judged to be within the preset bus voltage threshold range of the bus voltage and the charging current of the charging and discharging part is smaller than the charging current value of the preset charging and discharging part, the state switch control.
In the storage battery pack remote-range online core capacity management system provided by the invention, the storage battery pack remote-range online core capacity management system further has the following characteristics: the charging and discharging part comprises an inversion unit and a direct current charging unit which are mutually independent, a first state switch for connecting the inversion unit and the direct current charging unit with a storage battery, and a second state switch for connecting the inversion unit and the direct current charging unit with an alternating current power grid.
Action and Effect of the invention
According to the remote on-line core-capacitor management system of the storage battery pack related by the invention, once the management side communication part receives the core-capacitor instruction, whether the charging current of the charger is smaller than the preset charging current value of the charger is judged, whether the alternating current network voltage is within the preset alternating current network voltage range is judged, once the charging current of the charger is smaller than the preset charging current value of the charger and the alternating current network voltage is within the preset alternating current network voltage range is judged, the normally closed contactor is controlled to be switched to the off state, the charging and discharging part is controlled to start discharging the storage battery pack, meanwhile, the discharging duration timing unit and the charging and discharging part charging and discharging current collecting unit are controlled to work, whether the monomer voltage reaches the preset monomer discharging voltage value and whether the pack voltage reaches the preset pack discharging voltage value are judged, and whether the discharging current reaches the preset discharging current, and judging whether the discharge duration reaches a preset discharge duration value, controlling the charge-discharge part to stop discharging the storage battery pack once any one of the monomer voltage, the pack voltage, the discharge current and the discharge duration reaches a corresponding preset parameter value, controlling the charge-discharge part to start charging the storage battery pack after a first preset interval time value, judging whether the pack voltage is within a preset bus voltage threshold range of the bus voltage, judging whether the charge current of the charge-discharge part is smaller than a preset charge-discharge part charge current value, controlling the charge-discharge part to stop charging the storage battery pack once the pack voltage is within the preset bus voltage threshold range of the bus voltage and the charge current of the charge-discharge part is smaller than the preset charge-discharge part charge current value, controlling the normally-open contactor and the normally-closed contactor to be switched to a closed state successively, and controlling the normally-open contactor to be switched to the open state after a second preset interval time value, therefore, the invention can efficiently carry out remote-range online nuclear capacity discharge on the storage battery pack, automatically reversely charge the storage battery pack to the same voltage as the bus voltage after the discharge is finished, and safely connect the storage battery pack back to the bus, thereby reducing the harm caused by larger voltage difference.
Drawings
FIG. 1 is a block diagram of a remote in-line kernel capacity management system for a battery pack according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a battery pack remote-range on-line kernel capacity management system in an embodiment of the present invention;
fig. 3 is a block diagram of a core content management apparatus according to an embodiment of the present invention;
FIG. 4 is a block diagram showing the structure of a kernel context manager according to an embodiment of the present invention;
fig. 5 is a block diagram of a monitoring terminal in an embodiment of the present invention;
FIG. 6 is a flow chart of the operation of the battery pack remote on-line capacity management system discharging the battery pack and connecting the battery pack back to the bus after discharging in the embodiment of the present invention; and
fig. 7 is a flowchart illustrating the operation of the battery pack remote on-line capacity check management system for performing capacity calculation and display according to the embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement objects and effects of the present invention easy to understand, the following embodiments are specifically described for the storage battery remote-programming on-line capacity management system in the present invention with reference to the accompanying drawings.
< example >
FIG. 1 is a block diagram of a remote in-line kernel capacity management system for a battery pack according to an embodiment of the present invention; fig. 2 is a schematic diagram of a battery pack remote-range online kernel capacity management system in an embodiment of the invention.
As shown in fig. 1 and fig. 2, in the present embodiment, the battery pack remote on-line capacity check management system 100 is an improvement of an original power supply system including a battery pack 200, a charger 400, a bus 500 and a data acquisition and equalization management device 700, and is used for remotely performing on-line capacity check management on the battery pack 200. The battery pack 200 is composed of a plurality of battery cells; the charger 400 is supplied with alternating current by the alternating current grid 300; the storage battery 200 and the charger 400 provide direct current for the direct current load 600 through the bus 500, and the storage battery 200 is in a floating state by the charger 400. The battery pack remote on-line capacity management system 100 includes a capacity management apparatus 10 and a monitoring terminal 20.
The core capacity management device 10 is connected to the storage battery pack 200, and is connected to the data acquisition and balance management device 700 through a communication network 701. The communication network 700 is a wired network or a wireless network, and in this embodiment, the communication network 700 is a wired network using a cable.
The monitoring terminal 20 is connected to the nuclear capacity management apparatus 10 through a communication network 30, where the communication network 30 is a wired network or a wireless network, and in this embodiment, the communication network 30 is a wired network using a cable.
Fig. 3 is a block diagram of a core content management apparatus according to an embodiment of the present invention.
As shown in fig. 2 and 3, the nuclear capacity management device 10 includes a state switch unit 11, a charge/discharge unit 12, a nuclear capacity management unit 13, a management-side communication unit 14, a management-side temporary storage unit 15, and a management-side control unit 16.
The charging/discharging unit 12 is used to charge and discharge the battery 200, and has one end connected to the positive and negative electrodes of the battery pack 200 and the other end connected to the ac power grid 300. In the present embodiment, the charge and discharge portion 12 includes a bidirectional DC/AC converter 121 and a first status switch 122 and a second status switch 123 that connect the bidirectional DC/AC converter to the battery pack and the AC power grid, respectively.
Fig. 4 is a block diagram of a core capacity management unit according to an embodiment of the present invention.
As shown in fig. 4, the nuclear capacity management part 13 includes a preset parameter storage unit 131, a charger charging current collection unit 132, an ac power grid voltage collection unit 133, a battery operation information acquisition unit 134, a charging and discharging part charging and discharging current collection unit 135, a discharging duration timing unit 136, a bus voltage collection unit 137, a parameter judgment control unit 138, a current judgment unit 139, a voltage judgment unit 140, a state switch control unit 141, a charging and discharging control unit 142, a discharging duration judgment unit 143, a nuclear capacity disallowance information generation unit 144, a nuclear capacity completed information generation unit 145, a power grid abnormal information generation unit 146, and a capacity calculation unit 147.
The preset parameter storage unit 131 is configured to store preset parameter values, where the preset parameter values include a preset charging current value of a charger, a preset ac grid voltage range, a preset monomer discharge voltage value, a preset group discharge voltage value, a preset discharge current value, a preset discharge duration value, a preset charging current value of a charging/discharging unit, a first preset interval time value, a second preset interval time value, and a preset bus voltage threshold range.
The charger charging current collecting unit 132 is configured to collect, in real time, a current that the charger 400 charges the battery pack 200 as a charger charging current. In the present embodiment, as shown in fig. 2, the measurement point of the charger charging current collecting unit 132 is set between the state switch portion 11 and the bus bar 500, that is, the charger charging current is the current at the connection line between the state switch portion 11 and the bus bar 500.
The ac grid voltage collecting unit 133 is configured to collect the voltage of the ac grid 300 in real time as the ac grid voltage.
The battery operation information acquiring unit 134 is configured to acquire, in real time, the battery operation information of the secondary battery pack 200, which includes at least the voltage of the secondary battery pack as the pack voltage and the voltage of each cell in the secondary battery pack as the cell voltage, from the data acquisition and equalization management device 700 through the management-side communication unit 14.
The charge/discharge section charge/discharge current collection unit 135 is configured to collect, in real time, a current of the charge/discharge section 12 in a state of discharging the battery pack 200 as a discharge current and a current of the charge/discharge section 12 in a state of charging the battery pack 200 as a charge/discharge section charge current.
Discharge time period counting section 136 counts the time period in which charge/discharge unit 12 discharges battery pack 200 to obtain a discharge time period.
The bus voltage collecting unit 137 is used for collecting the voltage of the bus 500 in real time as the bus voltage.
The parameter determination control unit 138 is configured to control the current determination unit 139 to determine the current according to a preset current value; the voltage judgment unit 140 is also used for controlling the voltage judgment unit to judge the voltage according to the preset voltage value; and is further configured to control the discharge duration determining unit 143 to determine the discharge duration according to the preset discharge duration value.
The current judging unit 139 is configured to judge whether the charging current of the charger is smaller than a preset charging current value of the charger; the current detection circuit is also used for judging whether the discharge current reaches a preset discharge current value or not; and the charging and discharging circuit is also used for judging whether the charging current of the charging and discharging part is smaller than the preset charging and discharging current value of the charging and discharging part.
The voltage judging unit 140 is configured to judge whether the ac power grid voltage is within a preset ac power grid voltage range; the voltage detection circuit is also used for judging whether the monomer voltage reaches a preset monomer discharge voltage value or not; the voltage control circuit is also used for judging whether the group voltage reaches a preset group discharge voltage value or not; and the bus voltage detection circuit is also used for judging whether the group voltage is in a preset bus voltage threshold range of the bus voltage.
The state switch control unit 141 is used for controlling the normally closed contactor 113 to switch between a closed state and an open state; also for controlling the normally open contactor 112 to switch between an open state and a closed state; and also for controlling the opening and closing of the first state switch 122 and the second state switch 123. Once the charging current of the charger is judged to be smaller than the preset charging current value of the charger and the voltage of the alternating current power grid is within the preset voltage range of the alternating current power grid, the state switch control unit 141 controls the first state switch 122 and the second state switch 123 to be switched to the closed state; upon determining that the pack voltage is within a preset bus voltage threshold range of the bus voltage and the charge-discharge section charge current is less than the preset charge-discharge section charge current value, the state switch control unit 141 controls the first state switch 122 and the second state switch 123 to be switched to the off state.
Charge/discharge control unit 142 controls charge/discharge unit 12 to charge/discharge battery pack 200.
The discharging duration determining unit 143 is configured to determine whether the discharging duration obtained by the discharging duration timing unit 136 reaches a preset discharging duration value.
The core disallowance information generation unit 144 is configured to generate core disallowance information. Once the charging current of the charger is judged to be not less than the charging current value of the preset charger and/or the ac grid voltage is not within the preset grid voltage range, the core permission failure information generation unit 144 generates core permission failure information, the management-side communication unit 14 sends the core permission failure information to the monitoring terminal 20, and once the monitoring-side communication unit 25 receives the core permission failure information, the input display unit 22 displays an alarm screen and displays the core permission failure information in the alarm screen.
The core-completed information generating unit 145 is configured to generate core-completed information. When the charge/discharge control means 142 controls the charge/discharge unit 12 to stop charging the battery pack 200, the core capacity completion information generation means 145 generates core capacity completion information, the management-side communication unit 14 transmits the core capacity completion information to the monitor terminal 20, and when the monitor-side communication unit 25 receives the core capacity completion information, the input display unit 25 displays a notification screen and displays the core capacity completion information in the notification screen.
The grid abnormality information generation unit 146 is configured to generate grid abnormality information. Once the charging and discharging unit 12 discharges the battery pack 200, the parameter determination control unit 138 controls the voltage determination unit 140 to determine whether the ac grid voltage is within the preset ac grid voltage range, and once it is determined that the ac grid voltage is not within the preset ac grid voltage range, the charging and discharging control unit 142 controls the charging and discharging unit 12 to stop operating, and at the same time, the grid abnormality information generation unit 146 generates grid abnormality information, the management-side communication unit 14 transmits the grid abnormality information to the monitor terminal 20, and once the monitor-side communication unit 25 receives the grid abnormality information, the input display unit 25 displays an alarm screen and displays the grid abnormality information in the alarm screen.
The capacity calculation unit 147 is configured to calculate and obtain capacity information of the battery pack 200, where the capacity information includes a discharge capacity of the battery pack as a battery pack capacity and a discharge capacity of each cell as a cell capacity. When the charging/discharging unit 12 terminates the discharging of the battery pack 200, the capacity calculation unit 147 calculates the capacity information of the battery pack 200 from the discharge current, the discharge time period, and the cell voltage at the discharge start/stop time, the management-side communication unit 14 transmits the capacity information to the monitor terminal 20, and when the monitor-side communication unit 25 receives the capacity information, the input display unit 25 displays a monitor screen and displays the capacity information on the monitor screen.
The management-side communication unit 14 is used to exchange data information between the respective components of the nuclear capacity management apparatus 10, between the nuclear capacity management apparatus 10 and the data acquisition and balance management apparatus 700, and between the nuclear capacity management apparatus 10 and the monitoring terminal 20. For example, the data acquisition and balance management device 700 acquires the battery operation information of the battery pack 200 in real time, receives the capacity checking instruction and the preset parameter information sent from the monitoring terminal 20, and sends the capacity information, the grid abnormal information, the core tolerance disallowance information, and the core tolerance completed information to the monitoring terminal 20.
The management-side temporary storage unit 15 is configured to temporarily store related data information exchanged among the components of the nuclear capacity management apparatus 10, between the nuclear capacity management apparatus 10 and the data acquisition and balance management apparatus 700, and between the nuclear capacity management apparatus 10 and the monitoring terminal 20, and includes battery operation information acquired in real time from the data acquisition and balance management apparatus 700, a nuclear capacity instruction and preset parameter information received from the monitoring terminal 20, and capacity information, power grid abnormality information, nuclear capacity non-permission information, and nuclear capacity completion information sent to the monitoring terminal 20.
The management-side control unit 16 controls operations of the respective components in the core/content management apparatus 10.
Fig. 5 is a block diagram of a monitoring terminal in an embodiment of the present invention.
As shown in fig. 5, the monitor terminal 20 includes a screen storage unit 21, an input display unit 22, a preset parameter information generation unit 23, a kernel capacity instruction generation unit 24, a monitor-side communication unit 25, a monitor-side temporary storage unit 26, and a monitor-side control unit 27.
The screen storage unit 21 stores a monitoring screen, a preset parameter setting screen, an alarm screen, and an informing screen. The monitoring picture is used for displaying the performance state of the storage battery pack 200 and comprises a nuclear capacity key, a battery operation information display area and a capacity information display picture; the capacity checking key is used for allowing an operator to perform capacity checking confirmation operation, the battery operation information display area is used for displaying the battery operation information of the storage battery pack 200 acquired from the data acquisition and balance management device 700 in real time, and the capacity information display screen is used for capacity information of the storage battery pack 200. The preset parameter setting screen is used for allowing an operator to input each preset parameter value. The alarm picture is used for displaying abnormal information and nuclear inadmissible information of the power grid. The notification screen is used for displaying the information that the core has been completed.
The input display unit 22 is used for displaying a monitoring screen, displaying battery operation information in the battery operation information display area, displaying capacity information in the capacity information display area, and displaying a capacity check key to allow an operator to select a capacity check operation; the display device is also used for displaying a preset parameter setting picture so as to enable an operator to perform corresponding operation; the system is also used for displaying an alarm picture and displaying power grid abnormal information and nuclear inadmissible information in the alarm picture; and the display module is also used for displaying the informing picture and displaying the information of the content completion in the informing picture.
The preset parameter information generating section 23 is configured to generate preset parameter information. The input display unit 25 displays a preset parameter setting screen for allowing an operator to input each preset parameter value, and once the preset parameter screen is confirmed, the preset information generating unit 23 generates preset parameter information including all the preset parameter values, and the monitoring-side communication unit 26 transmits the preset parameter information to the nuclear capacity management apparatus 10, and once the management-side communication unit 14 receives the preset parameter information, the preset parameter storage unit 131 stores the preset parameter information.
The core capacity command generating unit 24 is configured to generate a core capacity command for performing core capacity on the battery 200. The input display unit 25 displays a monitor screen, displays the kernel contents key on the monitor screen, and allows the user to select the kernel contents key, and when the kernel contents key is selected, the kernel contents command generating unit 24 generates a kernel contents command, and the monitor-side communication unit 26 transmits the kernel contents command to the kernel contents management apparatus 10.
The monitoring-side communication unit 25 exchanges data between the respective components of the monitoring terminal 20 and between the monitoring terminal 20 and the content management apparatus 10. For example, the core capacity instruction and the preset parameter information are transmitted to the core capacity management device 10, and the capacity information, the grid abnormality information, the core capacity disallowance information, and the core capacity completion information transmitted from the core capacity management device 10 are received.
The monitoring side temporary storage unit 26 is configured to temporarily store relevant data information exchanged between the components of the monitoring terminal 20 and between the monitoring terminal 20 and the nuclear capacity management device 10, including a nuclear capacity instruction and preset parameter information transmitted to the nuclear capacity management device 10, and battery operation information, capacity information, grid abnormality information, nuclear capacity non-permission information, and nuclear capacity completion information received from the nuclear capacity management device 10.
The monitor-side control section 27 is for controlling the operations of the respective constituent parts in the monitor terminal 20.
The operation process of the battery pack remote online capacity management system 100 discharging the battery pack 200 and connecting the battery pack 200 back to the bus after discharging is described in detail below with reference to a flowchart.
Fig. 6 is a flow chart of the operation of the battery pack remote on-line capacity management system discharging the battery pack and connecting the battery pack back to the bus after discharging in the embodiment of the present invention.
As shown in fig. 6, in the present embodiment, the operation flow of the battery pack remote on-line capacity management system 100 discharging the battery pack 200 and connecting the battery pack 200 back to the bus 500 after discharging includes the following steps:
in step S1-1, the core/capacity command generating unit 24 generates a core/capacity command for core/capacity of the battery pack 200, and the process proceeds to step S1-2.
In step S1-2, the monitoring-side communication unit 25 transmits a core content command to the core content management device 10, and the process proceeds to step S1-3.
In step S1-3, once the management-side communication unit 14 receives the nuclear capacity command, the parameter determination control unit 138 controls the current determination unit 139 to determine whether the charging current of the charger is smaller than the preset charging current value, and controls the voltage determination unit 140 to determine whether the ac grid voltage is within the preset ac grid voltage range, and when the charging current of the charger is not smaller than the preset charging current value and/or the ac grid voltage is not within the preset ac grid voltage range, the process proceeds to step S1-4, and when the charging current of the charger is smaller than the preset charging current value and the ac grid voltage is within the preset ac grid voltage range, the process proceeds to step S1-7.
In step S1-4, the core disallowance information generation unit 144 generates core disallowance information, and then proceeds to step S1-5.
In step S1-5, the management-side communication unit 14 transmits the core disallowance information to the monitor terminal 20, and then proceeds to step S1-6.
In step S1-6, when the monitoring-side communication unit 25 receives the non-permission information, the input display unit 22 displays an alarm screen and displays the non-permission information on the alarm screen, and then enters an end state.
In step S1-7, the state switch control unit 141 controls the normally closed contactor 113 to switch to the open state, the charge/discharge control unit 142 controls the charge/discharge unit 12 to start discharging the battery pack 200, and at the same time controls the discharge duration timing unit 136 and the charge/discharge unit charge/discharge current collection unit 135 to operate, and then the process proceeds to step S1-8.
Step S1-8, the parameter determination control unit 138 controls the voltage determination unit 140 to determine whether the cell voltage reaches the preset cell discharge voltage value and whether the group voltage reaches the preset group discharge voltage value, controls the current determination unit 139 to determine whether the discharge current reaches the preset discharge current value, controls the discharge duration determination unit 143 to determine whether the discharge duration obtained by the discharge duration timing unit reaches the preset discharge duration value, and when any one of the cell voltage, the group voltage, the discharge current, and the discharge duration reaches the corresponding preset parameter value, the process proceeds to step S1-9; otherwise, this step S1-8 is executed in a loop.
In step S1-9, charge/discharge control unit 142 controls charge/discharge unit 12 to stop discharging battery pack 200, controls charge/discharge unit 12 to start charging battery pack 200 after the first preset interval time value, and then proceeds to step S1-10.
Step S1-10, the parameter determination control unit 138 controls the voltage determination unit 140 to determine whether the group voltage is within a preset bus voltage threshold range of the bus voltage, controls the current determination unit 139 to determine whether the charging current of the charging and discharging part is smaller than a preset charging current value of the charging and discharging part, and when the group voltage is within the preset bus voltage threshold range of the bus voltage and the charging current of the charging and discharging part is smaller than the preset charging current value of the charging and discharging part, the step S1-11 is entered; otherwise, this step S1-10 is executed in a loop.
In step S1-11, the charge and discharge control unit 142 controls the charge and discharge unit 12 to stop charging the battery pack 200, the state switch control unit 141 controls the normally open contactor 112 and the normally closed contactor 113 to switch to the closed state, and controls the normally open contactor 112 to switch to the open state after a second preset interval time value, and then ends the state.
Fig. 7 is a flowchart illustrating the operation of the battery pack remote on-line capacity check management system for performing capacity calculation and display according to the embodiment of the present invention.
As shown in fig. 7, in the present embodiment, the operation flow of the battery pack remote on-line capacity management system 100 for calculating and displaying the capacity of the battery pack 200 includes the following steps:
in step S2-1, once the charge/discharge unit 12 terminates discharging the battery pack 200, the capacity calculation unit 147 calculates the capacity information of the battery pack 200, which includes the discharge capacity of the battery pack 200 as the pack capacity and the discharge capacity of each cell as the cell capacity, from the discharge current, the discharge time period, and the cell voltage at the discharge start/stop time, and then proceeds to step S2-2.
In step S2-2, the management-side communication unit 14 transmits the capacity information to the monitoring terminal 20, and the process proceeds to step S2-3.
In step S2-3, when the monitoring-side communication unit 25 receives the capacity information, the input display unit 22 displays the monitoring screen and the capacity information on the monitoring screen, and then enters the end state.
Effects and effects of the embodiments
According to the on-line remote-programming on-line core-capacitor management system of the storage battery pack of the embodiment, once the management-side communication part receives the core-capacitor command, it is determined whether the charging current of the charger is smaller than the preset charging current value of the charger and the ac grid voltage is within the preset ac grid voltage range, and once it is determined that the charging current of the charger is smaller than the preset charging current value of the charger and the ac grid voltage is within the preset ac grid voltage range, the normally closed contactor is controlled to switch to the off state, the charging and discharging part is controlled to start discharging the storage battery pack, and at the same time, the discharging duration timing unit and the charging and discharging current collecting unit of the charging and discharging part are controlled to operate, and it is determined whether the cell voltage reaches the preset cell discharging voltage value and whether the pack voltage reaches the preset pack discharging voltage value, and judging whether the discharge duration reaches a preset discharge duration value, controlling the charge-discharge part to stop discharging the storage battery pack once any one of the monomer voltage, the pack voltage, the discharge current and the discharge duration reaches a corresponding preset parameter value, controlling the charge-discharge part to start charging the storage battery pack after a first preset interval time value, judging whether the pack voltage is within a preset bus voltage threshold range of the bus voltage, judging whether the charge current of the charge-discharge part is smaller than a preset charge-discharge part charge current value, controlling the charge-discharge part to stop charging the storage battery pack once the pack voltage is within the preset bus voltage threshold range of the bus voltage and the charge current of the charge-discharge part is smaller than the preset charge-discharge part charge current value, controlling the normally-open contactor and the normally-closed contactor to be switched to a closed state successively, and controlling the normally-open contactor to be switched to the open state after a second preset interval time value, therefore, the embodiment can efficiently carry out the long-range online nuclear capacity discharge on the storage battery pack, automatically and reversely charge the storage battery pack to the same voltage as the bus voltage after the discharge is finished, and safely connect the storage battery pack back to the bus, thereby reducing the harm caused by larger voltage difference.
In addition, because the state switch part is arranged between the anode of the storage battery pack and the bus and comprises the thermistor, the normally open contactor, the normally closed contactor and the diode, the thermistor and the normally open contactor are connected in series to form the assembly part which is connected with the normally closed contactor and the diode in parallel, the storage battery pack can be ensured to be in an effective standby power state under any fault, and the normal work of a power supply system is not influenced.
In addition, because the charging and discharging part is connected with the storage battery pack and the alternating current power grid, and the charging and discharging part adopts the bidirectional AC/DC converter, the direct current of the storage battery pack can be inverted into the alternating current and the alternating current can be fed back to the alternating current power grid, so that the energy-saving and environment-friendly effects are achieved.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
For example, in the above embodiment, the charge/discharge unit employs a bidirectional AD/DC converter. However, in the present invention, the charging/discharging unit may be an inverter unit and a dc charging unit that are independent of each other, and the charging/discharging unit may discharge and charge the battery pack.
Claims (10)
1. A storage battery remote on-line capacity check management system is respectively connected with an alternating current power grid and a data acquisition and balance management device for acquiring battery operation information of the storage battery in real time and used for carrying out capacity check management on the storage battery, and the storage battery and a charger connected with the alternating current power grid jointly supply power for a direct current load through a bus, and is characterized by comprising:
the core capacity management device is used for carrying out discharge core capacity management on the storage battery pack; and
a monitoring terminal which is connected with the kernel capacity device in a communication way,
wherein the nuclear capacity management device comprises a state switch part, a charging and discharging part, a nuclear capacity management part and a management side communication part,
the monitoring terminal comprises a kernel content command generating part and a monitoring side communication part,
the state switch part is arranged between the positive electrode of the storage battery pack and the bus and comprises a thermistor, a normally open contactor and a normally closed contactor, the thermistor and the normally open contactor are connected in series to form an assembly part which is connected with the normally closed contactor in parallel,
the charging and discharging part is respectively connected with the storage battery pack and the alternating current power grid,
the nuclear capacity management part comprises a preset parameter storage unit, a charger charging current acquisition unit, an alternating current power grid voltage acquisition unit, a battery operation information acquisition unit, a charging and discharging part charging and discharging current acquisition unit, a discharging duration timing unit, a bus voltage acquisition unit, a parameter judgment control unit, a current judgment unit, a voltage judgment unit, a state switch control unit, a charging and discharging control unit and a discharging duration judgment unit,
the preset parameter storage unit stores a preset charger charging current value, a preset alternating current network voltage range, a preset monomer discharging voltage value, a preset group discharging voltage value, a preset discharging current value, a preset discharging time length value, a preset charging and discharging part charging current value, a first preset interval time value, a second preset interval time value and a preset bus voltage threshold value range,
the charger charging current acquisition unit is used for acquiring the current charged by the charger to the storage battery pack in real time as the charging current of the charger,
the alternating current power grid voltage acquisition unit is used for acquiring the voltage of the alternating current power grid in real time as the alternating current power grid voltage,
the battery operation information acquisition unit is used for acquiring the battery operation information in real time from the data acquisition and balance management device through the management side communication part, the battery operation information at least comprises the voltage of the storage battery pack as a group voltage and the voltage of each battery cell in the storage battery pack as a cell voltage,
the charging and discharging current collecting unit of the charging and discharging part is used for collecting the current of the charging and discharging part in the discharging state of the storage battery pack as the discharging current and the current of the charging and discharging part in the charging state of the storage battery pack as the charging current of the charging and discharging part in real time,
the bus voltage acquisition unit is used for acquiring the voltage of the bus in real time as the bus voltage,
the core capacity instruction generating unit generates a core capacity instruction for performing core capacity on the battery pack,
the monitoring side communication unit transmits the core capacity instruction to the core capacity management apparatus,
once the management side communication part receives the core capacity instruction, the parameter judgment control unit controls the current judgment unit to judge whether the charging current of the charger is smaller than the charging current value of the preset charger and controls the voltage judgment unit to judge whether the voltage of the alternating current power grid is within the voltage range of the preset alternating current power grid,
once the charging current of the charger is judged to be smaller than the charging current value of the preset charger and the voltage of the alternating current power grid is within the voltage range of the preset power grid, the state switch control unit controls the normally closed contactor to be switched to a disconnected state, the charging and discharging control unit controls the charging and discharging part to start discharging the storage battery pack and simultaneously controls the discharging duration timing unit and the charging and discharging current collecting unit of the charging and discharging part to work,
the parameter judgment control unit controls the voltage judgment unit to judge whether the monomer voltage reaches the preset monomer discharge voltage value and whether the group voltage reaches the preset group discharge voltage value, controls the current judgment unit to judge whether the discharge current obtained by the charge and discharge current acquisition unit of the charge and discharge part reaches the preset discharge current value, and controls the discharge duration judgment unit to judge whether the discharge duration obtained by the discharge duration timing unit reaches the preset discharge duration value,
once any one of the monomer voltage, the pack voltage, the discharge current and the discharge time reaches the corresponding preset parameter value, the charge-discharge control unit controls the charge-discharge part to stop discharging the storage battery pack and controls the charge-discharge part to start charging the storage battery pack after the first preset interval time value,
the parameter judgment control unit controls the voltage judgment unit to judge whether the group voltage is in the preset bus voltage threshold range of the bus voltage, controls the current judgment unit to judge whether the charging current of the charging and discharging part obtained by the charging and discharging part charging and discharging current acquisition unit is smaller than the preset charging and discharging part charging current value,
once the group voltage is judged to be within the preset bus voltage threshold range of the bus voltage and the charging current of the charging and discharging part is smaller than the preset charging and discharging part charging current value, the charging and discharging control unit controls the charging and discharging part to stop charging the storage battery pack, the state switch control unit controls the normally open contactor and the normally closed contactor to be switched to a closed state in sequence, and controls the normally open contactor to be switched to a disconnected state after the second preset interval time value.
2. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein the core/capacity management unit further includes a capacity calculation unit,
the monitoring terminal also comprises a picture storage part and an input display part,
the picture storage part is used for storing a monitoring picture,
the capacity calculation unit calculates capacity information of the battery pack including a discharge capacity of the battery pack as a battery pack capacity and discharge capacities of the respective battery cells as cell capacities, based on a discharge current, a discharge time period, and a cell voltage at a discharge start/stop time, upon termination of discharging of the battery pack by the charge/discharge portion,
the management-side communication section transmits the capacity information to the monitoring terminal,
when the monitoring-side communication unit receives the capacity information, the input display unit displays the monitoring screen and displays the capacity information on the monitoring screen.
3. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein, the monitoring terminal also comprises a picture storage part and an input display part,
the picture storage part stores a monitoring picture which is provided with a content key,
the input display part displays the monitoring picture and displays the kernel content key in the monitoring picture for the user to select,
the kernel context instruction generating section generates the kernel context instruction once the kernel context key is selected.
4. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein, the monitoring terminal also comprises a picture storage part, an input display part and a preset parameter information generation part,
the picture storage part stores a preset parameter setting picture,
the input display part displays the preset parameter setting picture to allow the user to input each preset parameter value,
the preset information generating section generates preset parameter information including all the preset parameter values once the preset parameter screen is confirmed,
the monitoring side communication part sends the preset parameter information to the core capacity management device,
the preset parameter storage unit stores the preset parameter information once the management-side communication part receives the preset parameter information.
5. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein the state switching part further comprises a diode connected in parallel with the component part and the normally closed contactor,
once the charging and discharging part discharges the storage battery pack, the parameter judgment control unit controls the voltage judgment unit to judge whether the alternating current power grid voltage is in the preset alternating current power grid voltage range,
and once the alternating current power grid voltage is judged not to be within the preset alternating current power grid voltage range, the charging and discharging control unit controls the charging and discharging part to stop working.
6. The battery pack remote-range online capacity management system according to claim 5, wherein:
wherein the core capacity management part also comprises a power grid abnormal information generation unit,
the monitoring terminal also comprises a picture storage part and an input display part,
the picture storage part stores an alarm picture,
once the alternating current power grid voltage is judged not to be in the preset alternating current power grid voltage range, the power grid abnormal information generating unit generates power grid abnormal information,
the management side communication part transmits the power grid abnormality information to the monitoring terminal,
and once the monitoring side communication part receives the abnormal information of the power grid, the input display part displays the alarm picture and displays the abnormal information of the power grid in the alarm picture.
7. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein the core capacity management unit further includes a core capacity disallowance information generation unit,
the monitoring terminal also comprises a picture storage part and an input display part,
the picture storage part stores an alarm picture,
once the charging current of the charger is judged to be not less than the preset charging current value and/or the alternating current grid voltage is not within the preset alternating current grid voltage range, the nuclear tolerance disallowance information generating unit generates the nuclear tolerance disallowance information,
the management-side communication section transmits the core disallowance information to the monitor terminal,
once the monitoring side communication part receives the core disallowance information, the input display part displays the alarm picture and displays the core disallowance information in the alarm picture.
8. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein the core content management unit further includes a core content completed information generation unit,
the monitoring terminal also comprises a picture storage part and an input display part,
the picture storage part stores a notification picture,
the charge/discharge control unit controls the charge/discharge unit to terminate charging the battery pack, the capacity-checked information generation unit generates capacity-checked information,
the management-side communication section transmits the information that the core has been completed to the monitoring terminal,
when the monitoring-side communication unit receives the core-completed information, the input display unit displays the notification screen and displays the core-completed information in the notification screen.
9. The battery pack remote-range online capacity management system according to claim 1, wherein:
wherein the charging and discharging part comprises a bidirectional DC/AC converter and a first state switch and a second state switch which respectively connect the bidirectional DC/AC converter with the storage battery pack and the alternating current network,
the state switch control unit controls the first state switch and the second state switch to be switched to a closed state once the charging current of the charger is judged to be smaller than the preset charging current value and the alternating current power grid voltage is within the preset power grid voltage range,
the state switch control unit controls the first state switch and the second state switch to be switched to an off state upon determining that the group voltage is within the preset bus voltage threshold range of the bus voltage and the charge-discharge section charge current is less than the preset charge-discharge section charge current value.
10. The battery pack remote-range online core capacity system according to claim 1, wherein:
wherein the charging and discharging part comprises an inverter unit and a DC charging unit which are independent of each other, a first state switch for connecting the inverter unit and the DC charging unit with the storage battery, and a second state switch for connecting the inverter unit and the DC charging unit with the AC power grid,
the state switch control unit controls the first state switch and the second state switch to be switched to a closed state once the charging current of the charger is judged to be smaller than the preset charging current value and the alternating current power grid voltage is within the preset power grid voltage range,
the state switch control unit controls the first state switch and the second state switch to be switched to an off state upon determining that the group voltage is within the preset bus voltage threshold range of the bus voltage and the charge-discharge section charge current is less than the preset charge-discharge section charge current value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011292242.4A CN112467831B (en) | 2020-11-18 | 2020-11-18 | Remote on-line nuclear capacity management system for storage battery pack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011292242.4A CN112467831B (en) | 2020-11-18 | 2020-11-18 | Remote on-line nuclear capacity management system for storage battery pack |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112467831A true CN112467831A (en) | 2021-03-09 |
CN112467831B CN112467831B (en) | 2023-05-30 |
Family
ID=74837674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011292242.4A Active CN112467831B (en) | 2020-11-18 | 2020-11-18 | Remote on-line nuclear capacity management system for storage battery pack |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112467831B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113013991A (en) * | 2021-03-26 | 2021-06-22 | 北京国电光宇机电设备有限公司 | Online intelligent management system for storage battery |
CN113381085A (en) * | 2021-06-15 | 2021-09-10 | 江苏为恒智能科技有限公司 | Intelligent security system of energy storage device |
CN113572183A (en) * | 2021-07-20 | 2021-10-29 | 许继电源有限公司 | Intelligent maintenance circuit and maintenance method for station storage battery |
CN113777504A (en) * | 2021-08-31 | 2021-12-10 | 云南电网有限责任公司保山供电局 | Storage battery pack capacity checking system |
CN114069770A (en) * | 2021-10-22 | 2022-02-18 | 南方电网数字电网研究院有限公司 | Storage battery remote nuclear capacity control system and method |
CN114069073A (en) * | 2021-12-15 | 2022-02-18 | 北京泰岳天成科技有限公司 | Storage battery core capacitor discharge control system and method |
CN114156963A (en) * | 2021-10-19 | 2022-03-08 | 深圳奥特迅电力设备股份有限公司 | Storage battery online capacity checking method and direct current guarding power supply system |
CN115712066A (en) * | 2023-01-08 | 2023-02-24 | 北京宏光星宇科技发展有限公司 | Online capacity checking method and management system for lead-acid battery pack power backup |
CN115765025A (en) * | 2022-12-07 | 2023-03-07 | 国网浙江省电力有限公司建设分公司 | Distributed power supply management system |
CN115877228A (en) * | 2023-02-28 | 2023-03-31 | 广东长实通信科技有限公司 | Storage battery charging and discharging monitoring method and system with remote nuclear capacity |
CN118112437A (en) * | 2024-03-07 | 2024-05-31 | 铁塔能源有限公司 | Nuclear capacity assessment method and device for storage battery, electronic equipment and storage medium |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012068774A1 (en) * | 2010-11-24 | 2012-05-31 | 四川电力试验研究院 | Lithium iron battery-based direct current power supply emergency response system for transformer substation |
JP2016019412A (en) * | 2014-07-10 | 2016-02-01 | パナソニックIpマネジメント株式会社 | Power storage system and control method for the same |
CN105425168A (en) * | 2016-01-08 | 2016-03-23 | 国网浙江宁波市鄞州区供电公司 | Storage battery capacity detection method and apparatus in power supply system |
CN107219470A (en) * | 2017-07-24 | 2017-09-29 | 深圳市泰昂能源科技股份有限公司 | The batteries property checked electric discharge device and method online |
CN109901079A (en) * | 2019-03-25 | 2019-06-18 | 深圳市中联通电子股份有限公司 | A kind of DC power battery distant place core holds method and system |
CN110568368A (en) * | 2019-09-17 | 2019-12-13 | 陕西意联电气设备有限公司 | Method and device for online nuclear capacity discharge of storage battery of power system |
CN110676528A (en) * | 2019-10-14 | 2020-01-10 | 江苏为恒智能科技有限公司 | Storage battery pack online repair system |
JP2020020654A (en) * | 2018-07-31 | 2020-02-06 | 株式会社Gsユアサ | Capacity estimating system, capacity estimating method, communication device, and computer program |
CN111725867A (en) * | 2020-06-24 | 2020-09-29 | 国网湖北省电力有限公司孝感供电公司 | Remote automatic maintenance system and maintenance method for storage battery |
-
2020
- 2020-11-18 CN CN202011292242.4A patent/CN112467831B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012068774A1 (en) * | 2010-11-24 | 2012-05-31 | 四川电力试验研究院 | Lithium iron battery-based direct current power supply emergency response system for transformer substation |
JP2016019412A (en) * | 2014-07-10 | 2016-02-01 | パナソニックIpマネジメント株式会社 | Power storage system and control method for the same |
CN105425168A (en) * | 2016-01-08 | 2016-03-23 | 国网浙江宁波市鄞州区供电公司 | Storage battery capacity detection method and apparatus in power supply system |
CN107219470A (en) * | 2017-07-24 | 2017-09-29 | 深圳市泰昂能源科技股份有限公司 | The batteries property checked electric discharge device and method online |
JP2020020654A (en) * | 2018-07-31 | 2020-02-06 | 株式会社Gsユアサ | Capacity estimating system, capacity estimating method, communication device, and computer program |
CN109901079A (en) * | 2019-03-25 | 2019-06-18 | 深圳市中联通电子股份有限公司 | A kind of DC power battery distant place core holds method and system |
CN110568368A (en) * | 2019-09-17 | 2019-12-13 | 陕西意联电气设备有限公司 | Method and device for online nuclear capacity discharge of storage battery of power system |
CN110676528A (en) * | 2019-10-14 | 2020-01-10 | 江苏为恒智能科技有限公司 | Storage battery pack online repair system |
CN111725867A (en) * | 2020-06-24 | 2020-09-29 | 国网湖北省电力有限公司孝感供电公司 | Remote automatic maintenance system and maintenance method for storage battery |
Non-Patent Citations (2)
Title |
---|
宋会平等: "变电站蓄电池状态监测与在线核容活化研究", 《湖北电力》 * |
浦建新等: "变电站直流电源蓄电池组新型核容装置研制", 《仪器仪表与分析监测》 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113013991A (en) * | 2021-03-26 | 2021-06-22 | 北京国电光宇机电设备有限公司 | Online intelligent management system for storage battery |
CN113381085A (en) * | 2021-06-15 | 2021-09-10 | 江苏为恒智能科技有限公司 | Intelligent security system of energy storage device |
CN113381085B (en) * | 2021-06-15 | 2024-03-26 | 江苏为恒智能科技有限公司 | Intelligent security system of energy storage device |
CN113572183A (en) * | 2021-07-20 | 2021-10-29 | 许继电源有限公司 | Intelligent maintenance circuit and maintenance method for station storage battery |
CN113777504A (en) * | 2021-08-31 | 2021-12-10 | 云南电网有限责任公司保山供电局 | Storage battery pack capacity checking system |
CN114156963A (en) * | 2021-10-19 | 2022-03-08 | 深圳奥特迅电力设备股份有限公司 | Storage battery online capacity checking method and direct current guarding power supply system |
CN114069770A (en) * | 2021-10-22 | 2022-02-18 | 南方电网数字电网研究院有限公司 | Storage battery remote nuclear capacity control system and method |
CN114069073A (en) * | 2021-12-15 | 2022-02-18 | 北京泰岳天成科技有限公司 | Storage battery core capacitor discharge control system and method |
CN114069073B (en) * | 2021-12-15 | 2023-12-29 | 北京泰岳天成科技有限公司 | Storage battery nuclear capacity discharge control system and method |
CN115765025A (en) * | 2022-12-07 | 2023-03-07 | 国网浙江省电力有限公司建设分公司 | Distributed power supply management system |
CN115712066A (en) * | 2023-01-08 | 2023-02-24 | 北京宏光星宇科技发展有限公司 | Online capacity checking method and management system for lead-acid battery pack power backup |
CN115877228A (en) * | 2023-02-28 | 2023-03-31 | 广东长实通信科技有限公司 | Storage battery charging and discharging monitoring method and system with remote nuclear capacity |
CN118112437A (en) * | 2024-03-07 | 2024-05-31 | 铁塔能源有限公司 | Nuclear capacity assessment method and device for storage battery, electronic equipment and storage medium |
Also Published As
Publication number | Publication date |
---|---|
CN112467831B (en) | 2023-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112467831B (en) | Remote on-line nuclear capacity management system for storage battery pack | |
CN112462289B (en) | Online nuclear capacity management device of storage battery pack | |
CN110707804B (en) | Energy storage and standby power device with online test function and test method | |
CN101813755B (en) | Charge and discharge test equipment for full on-line storage battery pack | |
CN110568368A (en) | Method and device for online nuclear capacity discharge of storage battery of power system | |
CN109449944B (en) | Bidirectional direct-current power supply control system and method for transformer substation | |
CN115184817A (en) | Storage battery online monitoring system | |
CN210109280U (en) | Remote capacity checking system for storage battery of electric direct-current power supply | |
CN112816896A (en) | Dual-power direct-current system battery pack remote nuclear capacity control system and control method | |
CN111342534A (en) | Storage battery discharge control system and control method thereof | |
CN104333081A (en) | Online maintenance method of distributed power supply | |
CN111864889B (en) | Uninterrupted emergency power supply system and power supply method for open-circuit protection of lead-acid storage battery pack | |
CN101762788A (en) | Storage battery operation monitoring system | |
CN110676528B (en) | Storage battery pack online repair system | |
CN115864653A (en) | Remote inversion feed-type storage battery pack online capacity checking system and method | |
CN104333082A (en) | Online maintenance system and method of distributed power supply | |
CN204928219U (en) | Lead acid battery system and intelligent system | |
CN204131151U (en) | A kind of storage battery automatic on-line electric discharge device | |
CN114204658A (en) | Storage battery pack online capacity checking system | |
CN206820086U (en) | A kind of accumulator on-line maintenance control circuit and system | |
CN105449299B (en) | A kind of long-range charging/discharging thereof of battery based on float charge voltage | |
CN107390131B (en) | Integrated monitoring system for storage battery of transformer substation | |
CN215813253U (en) | Remote control system for checking capacity of communication power supply storage battery | |
CN213817354U (en) | Intelligent management system for storage battery of transformer substation | |
CN113253124A (en) | Safe and energy-saving power storage battery nuclear capacity discharging device and method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |