CN108321827A - Backup battery energy storage discharge control system and method - Google Patents
Backup battery energy storage discharge control system and method Download PDFInfo
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- CN108321827A CN108321827A CN201810213547.8A CN201810213547A CN108321827A CN 108321827 A CN108321827 A CN 108321827A CN 201810213547 A CN201810213547 A CN 201810213547A CN 108321827 A CN108321827 A CN 108321827A
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- backup battery
- battery
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- carrying capacity
- inverter
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- 238000004146 energy storage Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000003862 health status Effects 0.000 claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 36
- 230000005611 electricity Effects 0.000 claims description 22
- 230000010287 polarization Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000020411 cell activation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001314 paroxysmal effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
Abstract
The present invention provides a kind of backup battery energy storage discharge control system and methods, and the system comprises monitoring modular, master controller and power supply monitors, wherein：The monitoring modular, the carrying capacity for detecting the backup battery and health status；The master controller, for sending instruction to the power supply monitor and inverter, and according to the carrying capacity and health status of the backup battery, and setting peak when rate period, paddy when rate period, usually rate period adjustment power module output voltage and inverter working condition so that backup battery be in charging, electric discharge, do not charge not discharge condition yet.The present invention charges when control backup battery carries out peak when electric discharge, paddy according to the carrying capacity and health status of backup battery, can realize that peak load shifting utilizes under the premise of ensureing power supply safety, using the spare capacity of backup battery.
Description
Technical field
The present invention relates to electric power related fields, more specifically to a kind of backup battery energy storage discharge control system
And method.
Background technology
Accumulator is widely used in power system transformer substation operation power, uninterruptible power system (UPS), communication base station electricity
The fields such as source, emergency power supply (EPS), as backup power supply.
As national grid system continues to develop, power demands are further met, and paroxysmal power failure probability is continuous
It reduces.In this case, as backup power supply, accumulator group is chronically at a kind of floating charge state.Due to battery manufacturing process etc.
Objective factor, accumulator is in whole group in use, difference on existence, shows lack of uniformity, percentage of batteries due to locating for a long time
The phenomenon that dehydration or charge less generate sulfation is generated in overcharging state, to influence whole group battery.To ensure
Safety need to carry out accumulator periodic maintenance, such as be provided according to Guangdong Power Grid Corporation's power management, the valve control electric power storage newly installed
Pond should carry out full capacity verification property charge and discharge when checking and accepting, and should carry out within every 2~3 years 1 full capacity verification property charge and discharge, fortune later
Go 6 years later valve-control storage batteries, it is preferably annual to carry out 1 full capacity verification property charge and discharge.But core discharge capacitor is mostly at present
Manual operation, and disposably electric discharge, refill time are very long, are reaching the deep discharge moment, if there is power failure, battery pack because
It can not power for not enough electricity, increase power supply insecurity.Core discharge capacitor electric energy is released by discharge load with thermal energy
It puts, it is time-consuming, and have certain energy waste, one time core discharge capacitor generally also can't resolve cell activation problem.Furthermore such as
The backup battery of remote substation, especially mobile base station, place and environment is also quite severe, lacks supervision, completely manually
Safeguard to be actually to have a greatly reduced quality.
In industry, the projected life of general accumulator single-unit manufacture is 8 to 10 years, still, since accumulator uses in groups,
It objectively has differences and causes state unbalanced, under long-term floating charge environment, have long-term charge less or overcharge phenomenon, cause salinization
Or dehydration, battery aggravate aging so that the universal service life of whole group can only achieve 5 years or so, to after 5 years, and this batch of electricity
The problem of pond will all be replaced, and be caused in this way is that battery group service life substantially reduces, and purchase cost increases,
Service efficiency reduction is caused simultaneously, is greatly wasted, and is adversely affected from the aspect of saving, energy-saving and environmental protection.
It is most important in terms of daily maintenance and monitoring for the operational safety of battery system.At present in backup power supply
Field is much still not enough battery detection, and majority is only the index of monitoring voltage state, and system is also relatively simple,
Can not or be difficult to do accurately to study and judge to battery status in the Life cycle of accumulator, the energy for the peak load shifting that is more far from being
Power.Battery tension value, operating current and the battery dump energy by voltage simple method of estimation is relied solely on cannot
Meet demand.With the development of battery management system (BMS) technology, acquisition of the engineer application field to accumulator status information
It increasingly refines and stringent.
Invention content
The technical problem to be solved in the present invention is, influences asking for peak load shifting ability for above-mentioned backup battery state
Topic provides a kind of backup battery energy storage discharge control system and method.
The technical solution that the present invention solves above-mentioned technical problem is to provide a kind of backup battery energy storage control of discharge system
System, the backup battery are connected to direct current supply line, and the direct current supply line also with DC load and be connected respectively to
The power module of alternating current, inverter connection, the backup battery includes multiple battery groups, and each battery group includes more
Batteries, the system comprises monitoring modular, master controller and power supply monitors, wherein：
The monitoring modular, the carrying capacity for detecting the backup battery and health status；
The master controller, for sending instruction to the power supply monitor and inverter, and：The rate period at peak
And the carrying capacity and health status of the backup battery pass through the power supply monitor and adjust the electricity when meeting preset condition
The output voltage of source module makes the power module not export supply current to direct current supply line, and the inverter is made to switch
To the inverter mode powered by direct current supply line；The carrying capacity and health status of rate period and the backup battery in paddy
When meeting preset condition, the output voltage of the power module is adjusted by the power supply monitor, keeps the power module logical
It crosses direct current supply line and exports charging current, to the DC load output services electric current to backup battery, and make the inversion
Device is switched to the bypass mode by mains-supplied；In usually rate period, the power supply mould is adjusted by the power supply monitor
The output voltage of block makes the power module pass through direct current supply line to the DC load output services electric current, and makes described
Inverter is switched to the bypass mode by mains-supplied.
In the invention backup battery energy storage discharge control system, the monitoring modular includes multiple battery detections
Terminal and a detection unit；
The multiple battery detection terminal detects the performance parameter per batteries in the backup battery respectively, described more
A battery detection terminal connects one to one with multiple battery groups, and each battery detection terminal and corresponding battery group
In every batteries connection；
The detection unit is used to obtain the carrying capacity and health status of every batteries according to the performance parameter per batteries,
The total voltage and charging and discharging currents of the backup battery are detected simultaneously, and according to the total voltage of the backup battery and are filled
Carrying capacity and health status in discharge current and the backup battery per batteries further obtain the standby and store
The carrying capacity and health status of battery.
In the invention backup battery energy storage discharge control system, the often economize on electricity of the battery detection terminal detection
The performance parameter in pond includes：Cell voltage, battery Ohmic resistance, battery polarization internal resistance, battery polarization capacitance and battery temperature.
In the invention backup battery energy storage discharge control system, the preset condition includes：The standby stores
The carrying capacity of battery is higher than the second secure threshold and any batteries higher than the carrying capacity of the first secure threshold, any batteries
Temperature be less than temperature protection threshold value；When being unsatisfactory for preset condition in the rear for the carrying capacity of accumulator and health status, institute
The output voltage that master controller adjusts the power module by the power supply monitor is stated, the power module is made to pass through direct current
Supply lines makes the inverter be switched to the bypass mode by mains-supplied to the DC load output services electric current.
In the invention backup battery energy storage discharge control system, the master controller includes control unit, institute
The charging duration of rate period when stating rate period electric discharge duration, paddy when control unit is used to estimate one day each peak；
When master controller rate period at peak reaches the electric discharge duration, electricity is adjusted by the power supply monitor
The output voltage of source module makes power module pass through direct current supply line to DC load output services electric current, while by inverter
It is switched to the bypass mode by mains-supplied；
When master controller rate period in paddy reaches the charging duration, the output voltage of power module is adjusted,
So that power module is passed through direct current supply line to DC load output services electric current, while inverter being switched to by mains-supplied
Bypass mode.
The present invention also provides a kind of backup battery energy storage discharge control method, the backup battery is connected to direct current confession
Electric wire, and the direct current supply line also with DC load and be connected respectively to the power module of alternating current, inverter is connect, described
Backup battery includes multiple battery groups, and each battery group includes multiple batteries, be the described method comprises the following steps：
(a) carrying capacity and health status of the backup battery are detected；
(b) it when at peak, the carrying capacity and health status of rate period and the backup battery meet preset condition, adjusts
The output voltage of the whole power module makes the power module not export supply current to direct current supply line, and makes described inverse
Become device and is switched to the inverter mode powered by direct current supply line；
(c) it when in paddy, the carrying capacity and health status of rate period and the backup battery meet preset condition, adjusts
The output voltage of the whole power module makes the power module pass through direct current supply line and exports charging electricity to backup battery
It flows, to the DC load output services electric current, and the inverter is made to be switched to the bypass mode by mains-supplied；
(d) in usually rate period, the output voltage of the power module is adjusted, the power module is made to be supplied by direct current
Electric wire makes the inverter be switched to the bypass mode by mains-supplied to the DC load output services electric current.
In backup battery energy storage discharge control method of the present invention, the step (a) includes：
(a1) performance parameter in the backup battery per batteries is detected respectively by multiple battery detection terminals, and
The carrying capacity and health status per batteries, the multiple battery detection terminal and multiple batteries are obtained according to the performance parameter
Group connects one to one, and each battery detection terminal is connected with every batteries in corresponding battery group；
(a2) total voltage and charging and discharging currents of the backup battery are detected；
(a3) it often economizes on electricity according in the total voltage of the backup battery and charging and discharging currents and the backup battery
The carrying capacity and health status in pond further obtain the carrying capacity and health status of the backup battery.
It is described per batteries in the step (a) in backup battery energy storage discharge control method of the present invention
Performance parameter include：Cell voltage, battery Ohmic resistance, battery polarization internal resistance, battery polarization capacitance and battery temperature.
In backup battery energy storage discharge control method of the present invention, the preset condition includes：The standby
The carrying capacity of accumulator is higher than the second secure threshold and any economize on electricity higher than the carrying capacity of the first secure threshold, any batteries
The temperature in pond is less than temperature protection threshold value；When being unsatisfactory for preset condition in the rear for the carrying capacity of accumulator and health status,
The output voltage for adjusting the power module makes the power module pass through direct current supply line to the DC load output services
Electric current, and the inverter is made to be switched to the bypass mode by mains-supplied.
In backup battery energy storage discharge control method of the present invention, the method further includes：Estimate one day respectively
When peak rate period electric discharge duration, paddy when rate period charging duration；
The step (b) includes：When reaching the electric discharge duration, the output voltage of power module is adjusted, makes power supply mould
Block is switched to the bypass mould by mains-supplied by direct current supply line to DC load output services electric current, while by inverter
Formula；
The step (c) includes：When reaching the charging duration, the output voltage of power module is adjusted, makes power supply mould
Block is switched to the bypass mould by mains-supplied by direct current supply line to DC load output services electric current, while by inverter
Formula.
The backup battery energy storage discharge control system and method for the present invention, according to the carrying capacity and health of backup battery
State is charged when electric discharge, paddy when control backup battery carries out peak, can be stored using standby under the premise of ensureing power supply safety
The spare capacity of battery realizes that peak load shifting utilizes.Peak load shifting makes the appropriate charge and discharge of backup battery, is conducive to battery
Activation is safeguarded, extends life cycle, while discharge load is local DC equipment, no matter from energy saving, environmentally friendly protection, warp
All it is important in inhibiting in benefit of helping.
Description of the drawings
Fig. 1 is the schematic diagram of backup battery energy storage discharge control system embodiment of the present invention；
Fig. 2 is schematic diagram of the power module in the output voltage of day part；
Fig. 3 is the flow diagram of backup battery energy storage discharge control method embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, being the schematic diagram of backup battery energy storage discharge control system embodiment of the present invention, the standby electric power storage
Pond energy storage discharge control system can be applied to power system transformer substation, uninterruptible power system, communication base station and electric power, emergency power supply
Deng, and realize the management of backup battery in above equipment.Above-mentioned backup battery is connected to direct current supply line, and direct current supply
Line (can also turn alternating current with DC load 15 (to be local all using direct current as the device of power supply and equipment), power module 11
Be changed to direct current) and inverter 16 (power supply can be provided for local AC load, while can be with the master control of battery management system
Device processed is communicated by RS485 modes, and according to the instruction switching working mode of master controller) connection, wherein power module 11 with
And inverter 16 is connected respectively to direct current supply line.Backup battery includes multiple battery groups, and each battery group includes
Multiple batteries.
The backup battery energy storage discharge control system of the present embodiment includes master controller 14, monitoring modular and Power Supply Monitoring
Device 12, wherein master controller 14 are connect with monitoring modular, inverter 16 and power supply monitor 12 respectively；Monitoring modular and standby
Accumulator connects, and carrying capacity and health status for detecting backup battery；Power supply monitor 12 and each power module
11 are separately connected, and the working condition for controlling power module 11 respectively.Specifically, above-mentioned master controller 14, Power Supply Monitoring
Device 12 and inverter 16 can be combined correspondingly by master controller, power supply monitor and the inverter in battery management system respectively
Software realization.And power module 11 has expansible RS485/232 communication interfaces, and is communicated by expansible RS485/232
Interface is in communication with each other with the power supply monitor 12 for controlling it management；Power supply monitor 12 equally has expansible RS485/
232 communication interfaces, and can be in communication with each other with power module 11, control the voltage output of power module 11；Master controller 14 is same
It is communicated respectively with inverter 16, power supply monitor 12 by expansible RS485/232 communication interfaces.
In conjunction with Fig. 2, the carrying capacity and health status for the backup battery that rate period and monitoring modular measure at peak are full
When sufficient preset condition, power supply monitor 12 is according to the output voltage of the instruction adjustment power module 11 of master controller 14 to Fig. 2 institutes
The first voltage shown makes power module 11 not export supply current to direct current supply line, while master controller makes inverter 16 cut
Change to the inverter mode powered by direct current supply line.At this point, backup battery is that DC load 15 provides by direct current supply line
Operating current, inverter 16 are in inverter mode, the direct current supply of backup battery are reverse into alternating current, are AC load
(such as air-conditioning) powers.
The carrying capacity and health status for the backup battery that rate period and monitoring modular measure in paddy, which meet, presets item
When part, power supply monitor 12 is according to the output voltage of the instruction adjustment power module 11 of master controller 14 to higher than shown in Fig. 2
Tertiary voltage makes power module 11 export charging current to backup battery by direct current supply line, be exported to DC load 15
Operating current, while master controller makes inverter 16 be switched to the bypass mode by mains-supplied.At this point, power module 11 is to rear
Standby accumulator charges, while powering to DC load 15, and inverter 16 keeps bypass output (i.e. by mains-supplied), negative to exchange
It carries and electric energy is provided.
In usually rate period, power supply monitor 12 is electric according to the output of the instruction adjustment power module 11 of master controller 14
It is pressed onto second voltage shown in Fig. 2, makes power module 11 by direct current supply line to 15 output services electric current of DC load, simultaneously
Master controller makes inverter 16 be switched to the bypass mode by mains-supplied.At this point, power module 11 powers to DC load 15,
Backup battery, which does not charge, also not to discharge, and inverter 16 is maintained at bypass output state.
Outside local scope, master controller 14 can be communicated to connect by GPRS communications and Cloud Server, master control
Backup battery status data (including carrying capacity and health status) that device 14 processed can be sent monitoring modular by plc communication,
The power module data that power supply monitor 12 is sent by RS485 communication protocols upload to Cloud Server with GPRS communication modes,
System manager realizes data exchange by ethernet access Cloud Server；What client terminal can be installed by mobile device
APP passes through mobile wireless network (3G/4G) access and server, the monitoring data of real time inspection battery.Specifically, system pipes
Arrange parameter needed for the control of above-mentioned peak load shifting can be sent to master controller 14, master controller by reason person by Cloud Server
Parameter is sent to power supply monitor 12 and inverter 16 by 14 by 485 communications, implements 11 output voltage parameter of power module
It is arranged and the adjusting of the output mode of inverter 16, the backup battery status number that joint battery management system monitors in real time
According under the premise of ensureing backup battery active volume safety, executing peak load shifting by power supply monitor 12 and operate, and make inverse
Become device execution pattern switching command, is exported by adjusting 11 output voltage of power module and the bypass of inverter 16 output, inversion
Pattern switching realizes the stored energy operation of peak load shifting.
Above-mentioned monitoring modular specifically may include multiple battery detection terminals 13 and a detection unit, and (detection unit can
It is integrated into master controller 14, also can be by independent hardware realization), and above-mentioned multiple battery detection terminals 13 are carried by power line
Wave is communicated to be communicated to connect with detection unit.Above-mentioned multiple battery detection terminals 13 connect one to one with multiple battery groups, and
Each battery detection terminal 13 is connected with every batteries in corresponding battery group, and detects often saved in corresponding battery group respectively
The performance parameter of battery.
Detection unit is used to obtain the carrying capacity and health status of corresponding battery, the inspection according to the performance parameter per batteries
Total voltage and charging and discharging currents that unit is additionally operable to detection backup battery are surveyed, and according to the total voltage of backup battery and charge and discharge
Carrying capacity and health status in electric current and backup battery per batteries, further obtain the charged of backup battery
Amount and health status.Specifically, detection unit receives respectively saves in the entire backup battery that each transmission of battery detection terminal 13 comes
The performance parameter of battery, including cell voltage, battery Ohmic resistance, battery polarization internal resistance, battery polarization capacitance, battery temperature
Deng, and each batteries are diagnosed with this, analyze the carrying capacity and health status per batteries, and further obtain it is entire after
The carrying capacity and health status of standby accumulator.
Above-mentioned master controller 14 further includes control unit, which joins the performance of all batteries in backup battery
After number is analyzed, in the case where ensureing safety, using the spare capacity of backup battery, according to the peak interval of time of electricity price,
11 output voltage of power module is adjusted, peak load cutting task is executed.
Correspondingly, above-mentioned preset condition includes：The carrying capacity of backup battery is higher than the first secure threshold, any batteries
Carrying capacity be less than temperature protection threshold value higher than the temperature of the second secure threshold and any batteries.Particularly, the first safety
Threshold value is the 50% of backup battery highest carrying capacity；Second secure threshold is the 50% of the highest carrying capacity of single battery.One
Denier monitoring modular detects the carrying capacity of backup battery and health status is unsatisfactory for preset condition, and master controller 14 is i.e. to power supply
Monitor 12 sends instruction, adjusts the output voltage of power module 11 to second voltage, power module 11 is made to pass through direct current supply
To 15 output services electric current of DC load, backup battery does not charge also not to discharge line, while inverter 16 being made to be switched to by city
The bypass mode of electricity power supply.
Particularly, in the electric discharge of backup battery and charging process, monitoring modular monitors the temperature of each batteries in real time
Degree, test period are less than 1 minute/time, and one has the abnormal electric discharge of stopping immediately or charging, and battery, which enters not fill, does not put state, prevents
Fire incident occurs；In backup battery discharge process, monitoring modular also monitors backup battery in real time, test week
Phase is less than 1 minute/time, ensures that backup battery voltage and single battery voltage not less than protection limit value, prevent damage battery, and
Ensure required battery life.
Above-mentioned control unit is also using electricity price start time when daily first secondary peak as starting point, with the moment backup battery
Carrying capacity be initial value, under using secure threshold as constraints, when estimating one day each peak rate period electric discharge duration, Gu Shi
The charging duration of rate period, and according to above-mentioned duration make power supply monitor 12 control power module 11 output voltage.Such as
The rate period at peak, once reaching above-mentioned electric discharge duration, master controller 14 sends to power supply monitor 12 and instructs, and electricity is turned up
The output voltage of source module 11 keeps power module 11 electric to 15 output services of DC load by direct current supply line to second voltage
Stream, backup battery, which does not charge, also not to discharge, while inverter 16 being made to be switched to the bypass mode by mains-supplied；And in paddy
Rate period, once reaching above-mentioned charging duration, master controller 14 sends to power supply monitor 12 and instructs, and turns down power module
11 output voltage makes power module 11 by direct current supply line to 15 output services electric current of DC load to second voltage, after
Standby accumulator, which does not charge, also not to discharge, while inverter 16 being made to keep the bypass mode by mains-supplied.
As shown in figure 3, the present invention also provides a kind of backup battery energy storage discharge control method, above-mentioned backup battery connects
It is connected to direct current supply line, and direct current supply line also with DC load and is connected respectively to the power module and inverter of alternating current
Connection, the backup battery includes multiple battery groups, and each battery group includes multiple batteries, the method includes with
Lower step：
Step S31：Detect the carrying capacity and health status of the backup battery.
In this step, every batteries in the backup battery are detected respectively by multiple battery detection terminals first
Performance parameter, and carrying capacity and health status per batteries, the multiple battery detection terminal and multiple batteries are obtained accordingly
Group connects one to one, and each battery detection terminal is connected with every batteries in corresponding battery group；Then it examines
The total voltage and charging and discharging currents of the backup battery are surveyed, and according to the total voltage of the backup battery and charge and discharge electricity
Carrying capacity and health status in stream and the backup battery per batteries, further obtain the backup battery
Carrying capacity and health status.
After sensing for when the carrying capacity and health status of every batteries, the performance parameter that need to be detected includes in accumulator：
Cell voltage, battery Ohmic resistance, battery polarization internal resistance, battery polarization capacitance and battery temperature etc..
Step S32：At peak, the carrying capacity and health status of rate period and the backup battery meet preset condition
When, the output voltage of the power module is adjusted, so that power module is not exported supply current to direct current supply line, and make inverter
It is switched to the inverter mode powered by direct current supply line.
Above-mentioned preset condition includes：The carrying capacity of backup battery higher than the first secure threshold, any batteries it is charged
Amount is less than temperature protection threshold value higher than the temperature of the second secure threshold and any batteries.Particularly, above-mentioned first safety threshold
Value is the 50% of the backup battery highest carrying capacity；Second secure threshold is the highest carrying capacity of single battery
50%.Once the carrying capacity and health status of backup battery are unsatisfactory for preset condition, the defeated of the power module is adjusted immediately
Go out voltage, power module is made to pass through direct current supply line to the DC load output services electric current, and the inverter is made to switch
To the bypass mode by mains-supplied.
Step S33：In paddy, the carrying capacity and health status of rate period and the backup battery meet preset condition
When, the output voltage of power module is adjusted, so that the power module is passed through direct current supply line and exports charging electricity to backup battery
It flows, to the DC load output services electric current, and inverter is made to be switched to the bypass mode by mains-supplied.
Once the carrying capacity and health status of backup battery are unsatisfactory for preset condition, the output of power module is adjusted immediately
Voltage makes the power module pass through direct current supply line to the DC load output services electric current, and the inverter is made to cut
Change to the bypass mode by mains-supplied.
Step S34：In usually rate period, the output voltage of the power module is adjusted, power module is made to pass through direct current
Supply lines makes inverter be switched to the bypass mode by mains-supplied to DC load output services electric current.
The no sequencing of execution of above-mentioned steps S32, S33, S34, rate period, Gu Shi electricity when according only to preset peak
Valence period and usually rate period parameter execute.
The above method further includes：Using electricity price start time when daily first secondary peak as starting point, with the moment standby electric power storage
The carrying capacity in pond is initial value, under using secure threshold as constraints, rate period electric discharge duration, paddy when estimating one day each peak
When rate period charging duration, and make according to above-mentioned duration the output voltage of adjustment power module.Such as at peak when electricity price
The output voltage of power module is turned up once reaching above-mentioned electric discharge duration in section, power module is made to pass through direct current supply line to straight
Current load output services electric current, backup battery, which does not charge, also not to discharge, while inverter is switched to the side by mains-supplied
Road pattern；And the rate period in paddy turns down the output voltage of power module once reaching above-mentioned charging duration, make power supply
By direct current supply line to DC load output services electric current, backup battery does not charge also not to discharge module, while making inversion
Device keeps the bypass mode by mains-supplied.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (10)
1. a kind of backup battery energy storage discharge control system, the backup battery is connected to direct current supply line, and described straight
Stream supply lines also with DC load and be connected respectively to the power module of alternating current, inverter is connect, the backup battery packet
Multiple battery groups are included, and each battery group includes multiple batteries, which is characterized in that the system comprises monitoring modular, masters
Controller and power supply monitor, wherein：
The monitoring modular, the carrying capacity for detecting the backup battery and health status；
The master controller, for sending instruction to the power supply monitor and inverter, and：Rate period and institute at peak
It states the carrying capacity of backup battery and when health status meets preset condition, passes through the power supply monitor and adjust the power supply mould
The output voltage of block, make the power module not to direct current supply line export supply current, and make the inverter be switched to by
The inverter mode of direct current supply line power supply；In paddy, the carrying capacity and health status of rate period and the backup battery meet
When preset condition, the output voltage of the power module is adjusted by the power supply monitor, and the power module is made to pass through directly
It flows supply lines and exports charging current, to the DC load output services electric current to backup battery, and the inverter is made to cut
Change to the bypass mode by mains-supplied；In usually rate period, the power module is adjusted by the power supply monitor
Output voltage makes the power module pass through direct current supply line to the DC load output services electric current, and makes the inversion
Device is switched to the bypass mode by mains-supplied.
2. backup battery energy storage discharge control system according to claim 1, which is characterized in that the monitoring modular packet
Include multiple battery detection terminals and a detection unit；
The multiple battery detection terminal detects the performance parameter per batteries, the multiple electricity in the backup battery respectively
Pond monitoring terminal connect one to one with multiple battery groups, and each battery detection terminal in corresponding battery group
It is connected per batteries；
The detection unit is used to obtain the carrying capacity and health status of every batteries according to the performance parameter per batteries, simultaneously
The total voltage and charging and discharging currents of the backup battery are detected, and according to the total voltage of the backup battery and charge and discharge
Carrying capacity and health status in electric current and the backup battery per batteries, further obtain the backup battery
Carrying capacity and health status.
3. backup battery energy storage discharge control system according to claim 2, which is characterized in that the battery detection is whole
The performance parameter of every batteries of detection is held to include：Cell voltage, battery Ohmic resistance, battery polarization internal resistance, battery polarization electricity
Appearance and battery temperature.
4. backup battery energy storage discharge control system according to claim 1, which is characterized in that the preset condition packet
It includes：The carrying capacity of the backup battery is higher than the second secure threshold higher than the carrying capacity of the first secure threshold, any batteries
And the temperature of any batteries is less than temperature protection threshold value；It is unsatisfactory in the rear for the carrying capacity of accumulator and health status
When preset condition, the master controller adjusts the output voltage of the power module by the power supply monitor, makes the electricity
Source module, to the DC load output services electric current, and makes the inverter be switched to by mains-supplied by direct current supply line
Bypass mode.
5. backup battery energy storage discharge control system according to claim 1, which is characterized in that the master controller packet
Include control unit, when described control unit is used to estimate one day each peak when rate period electric discharge duration, paddy rate period charging
Duration；
When master controller rate period at peak reaches the electric discharge duration, power supply mould is adjusted by the power supply monitor
The output voltage of block makes power module pass through direct current supply line to DC load output services electric current, while inverter being switched
To the bypass mode by mains-supplied；
When master controller rate period in paddy reaches the charging duration, the output voltage of power module is adjusted, electricity is made
Source module is switched to the bypass by mains-supplied by direct current supply line to DC load output services electric current, while by inverter
Pattern.
6. a kind of backup battery energy storage discharge control method, the backup battery is connected to direct current supply line, and described straight
Stream supply lines also with DC load and be connected respectively to the power module of alternating current, inverter is connect, the backup battery packet
Multiple battery groups are included, and each battery group includes multiple batteries, which is characterized in that the described method comprises the following steps：
(a) carrying capacity and health status of the backup battery are detected；
(b) when the carrying capacity and health status of rate period and the backup battery meet preset condition at peak, institute is adjusted
The output voltage for stating power module makes the power module not export supply current to direct current supply line, and makes the inverter
It is switched to the inverter mode powered by direct current supply line；
(c) when the carrying capacity and health status of rate period and the backup battery meet preset condition in paddy, institute is adjusted
The output voltage for stating power module, make the power module pass through direct current supply line to backup battery output charging current, to
The DC load output services electric current, and the inverter is made to be switched to the bypass mode by mains-supplied；
(d) in usually rate period, the output voltage of the power module is adjusted, the power module is made to pass through direct current supply line
To the DC load output services electric current, and the inverter is made to be switched to the bypass mode by mains-supplied.
7. backup battery energy storage discharge control method according to claim 6, which is characterized in that step (a) packet
It includes：
(a1) by multiple battery detection terminals detect respectively in the backup battery per batteries performance parameter, and according to
The performance parameter obtains the carrying capacity and health status per batteries, the multiple battery detection terminal and multiple battery groups
It connects one to one, and each battery detection terminal is connected with every batteries in corresponding battery group；
(a2) total voltage and charging and discharging currents of the backup battery are detected；
(a3) according to every batteries in the total voltage of the backup battery and charging and discharging currents and the backup battery
Carrying capacity and health status further obtain the carrying capacity and health status of the backup battery.
8. backup battery energy storage discharge control method according to claim 7, which is characterized in that in the step (a),
The performance parameter per batteries includes：Cell voltage, battery Ohmic resistance, battery polarization internal resistance, battery polarization capacitance with
And battery temperature.
9. backup battery energy storage discharge control method according to claim 6, which is characterized in that the preset condition packet
It includes：The carrying capacity of the backup battery is higher than the second secure threshold higher than the carrying capacity of the first secure threshold, any batteries
And the temperature of any batteries is less than temperature protection threshold value；It is unsatisfactory in the rear for the carrying capacity of accumulator and health status
When preset condition, the output voltage of the power module is adjusted, the power module is made to pass through direct current supply line to the direct current
Output services electric current is loaded, and the inverter is made to be switched to the bypass mode by mains-supplied.
10. backup battery energy storage discharge control method according to claim 6, which is characterized in that
The method further includes：When estimating one day each peak rate period electric discharge duration, paddy when rate period charging duration；
The step (b) includes：When reaching the electric discharge duration, the output voltage of power module is adjusted, keeps power module logical
It crosses direct current supply line and is switched to the bypass mode by mains-supplied to DC load output services electric current, while by inverter；
The step (c) includes：When reaching the charging duration, the output voltage of power module is adjusted, keeps power module logical
It crosses direct current supply line and is switched to the bypass mode by mains-supplied to DC load output services electric current, while by inverter.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193723A (en) * | 2018-10-11 | 2019-01-11 | 福建星云电子股份有限公司 | A kind of knockdown base station standby energy storage power and control method |
| CN109286198A (en) * | 2018-10-29 | 2019-01-29 | 深圳市伊力科电源有限公司 | UPS energy storage control method and system |
| CN110544950A (en) * | 2019-09-05 | 2019-12-06 | 南方电网科学研究院有限责任公司 | energy storage battery charging and discharging control method, device and equipment |
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| CN111428896A (en) * | 2020-04-02 | 2020-07-17 | 硕能(上海)自动化科技有限公司 | Lithium ion capacitor back-up power supply device |
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| CN111917122A (en) * | 2020-06-30 | 2020-11-10 | 嘉善数能技术有限公司 | Peak clipping and valley filling power supply control method for communication base station |
| CN113394867A (en) * | 2021-05-27 | 2021-09-14 | 利天万世新能源有限公司 | Intelligent control energy storage system of 5G communication equipment |
| CN113401004A (en) * | 2020-03-17 | 2021-09-17 | 丰田自动车株式会社 | Electric power transaction system for electric vehicle and charging and discharging device |
| CN114256912A (en) * | 2021-11-19 | 2022-03-29 | 阿尔特汽车技术股份有限公司 | Control method and system of storage battery and vehicle |
| CN117039971A (en) * | 2023-10-09 | 2023-11-10 | 广州奥鹏能源科技有限公司 | Intelligent charge and discharge control method and control system for energy storage equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882237A (en) * | 2011-07-15 | 2013-01-16 | 珠海银通新能源有限公司 | Intelligent energy storage machine and operating method thereof |
| CN102983585A (en) * | 2012-12-30 | 2013-03-20 | 东莞德世特电能科技有限公司 | Control method of intelligent energy storage system |
| CN103151789A (en) * | 2013-01-31 | 2013-06-12 | 中国地质大学（武汉） | Method and device for smart power grid time-of-use electricity price electricity storage and discharging |
| CN103311942A (en) * | 2013-03-18 | 2013-09-18 | 国家电网公司 | Control method of battery energy storage system for peak clipping and valley filling in distribution network |
| KR101322617B1 (en) * | 2013-07-30 | 2013-10-29 | 이화전기공업 주식회사 | Energy storage system of uninterruptible power supply of with battery and operating method thereof |
| US20150021991A1 (en) * | 2012-04-12 | 2015-01-22 | East Penn Manufacturing Co. | Management Of Battery Capacity |
| CN104466994A (en) * | 2013-09-12 | 2015-03-25 | 中国电信股份有限公司 | Peak-load-shifting energy storage system of communication power supply |
| CN104967136A (en) * | 2015-07-09 | 2015-10-07 | 杭州中恒电气股份有限公司 | Energy storage system based on novel peak load shifting controller |
| KR101649815B1 (en) * | 2015-02-24 | 2016-08-19 | 엘에스산전 주식회사 | Battery management system and method |
| CN107275694A (en) * | 2017-07-24 | 2017-10-20 | 深圳市普禄科智能检测设备有限公司 | Have active equalization and passive distributed storage battery balancer and method in a balanced way concurrently |
-
2018
- 2018-03-15 CN CN201810213547.8A patent/CN108321827A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882237A (en) * | 2011-07-15 | 2013-01-16 | 珠海银通新能源有限公司 | Intelligent energy storage machine and operating method thereof |
| US20150021991A1 (en) * | 2012-04-12 | 2015-01-22 | East Penn Manufacturing Co. | Management Of Battery Capacity |
| CN102983585A (en) * | 2012-12-30 | 2013-03-20 | 东莞德世特电能科技有限公司 | Control method of intelligent energy storage system |
| CN103151789A (en) * | 2013-01-31 | 2013-06-12 | 中国地质大学（武汉） | Method and device for smart power grid time-of-use electricity price electricity storage and discharging |
| CN103311942A (en) * | 2013-03-18 | 2013-09-18 | 国家电网公司 | Control method of battery energy storage system for peak clipping and valley filling in distribution network |
| KR101322617B1 (en) * | 2013-07-30 | 2013-10-29 | 이화전기공업 주식회사 | Energy storage system of uninterruptible power supply of with battery and operating method thereof |
| CN104466994A (en) * | 2013-09-12 | 2015-03-25 | 中国电信股份有限公司 | Peak-load-shifting energy storage system of communication power supply |
| KR101649815B1 (en) * | 2015-02-24 | 2016-08-19 | 엘에스산전 주식회사 | Battery management system and method |
| CN104967136A (en) * | 2015-07-09 | 2015-10-07 | 杭州中恒电气股份有限公司 | Energy storage system based on novel peak load shifting controller |
| CN107275694A (en) * | 2017-07-24 | 2017-10-20 | 深圳市普禄科智能检测设备有限公司 | Have active equalization and passive distributed storage battery balancer and method in a balanced way concurrently |
Non-Patent Citations (1)
| Title |
|---|
| 陈满;陆志刚;刘怡;丁泽俊;饶宏;鲍冠南;陆超;: "电池储能系统恒功率削峰填谷优化策略研究", 电网技术, no. 09, pages 232 - 237 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193723B (en) * | 2018-10-11 | 2023-12-05 | 福建星云电子股份有限公司 | Combined base station backup energy storage power supply and control method |
| CN109193723A (en) * | 2018-10-11 | 2019-01-11 | 福建星云电子股份有限公司 | A kind of knockdown base station standby energy storage power and control method |
| CN109286198A (en) * | 2018-10-29 | 2019-01-29 | 深圳市伊力科电源有限公司 | UPS energy storage control method and system |
| CN110544950A (en) * | 2019-09-05 | 2019-12-06 | 南方电网科学研究院有限责任公司 | energy storage battery charging and discharging control method, device and equipment |
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| CN113401004A (en) * | 2020-03-17 | 2021-09-17 | 丰田自动车株式会社 | Electric power transaction system for electric vehicle and charging and discharging device |
| CN111428896A (en) * | 2020-04-02 | 2020-07-17 | 硕能(上海)自动化科技有限公司 | Lithium ion capacitor back-up power supply device |
| CN111428896B (en) * | 2020-04-02 | 2024-02-20 | 硕能(上海)自动化科技有限公司 | Lithium ion capacitor backup power supply device |
| CN111724080A (en) * | 2020-06-29 | 2020-09-29 | 南京工程学院 | Mobile charging pile group scheduling method considering battery pack health state balance |
| CN111917122A (en) * | 2020-06-30 | 2020-11-10 | 嘉善数能技术有限公司 | Peak clipping and valley filling power supply control method for communication base station |
| CN111917122B (en) * | 2020-06-30 | 2023-04-18 | 利天万世(上海)能源科技有限公司 | Peak clipping and valley filling power supply control method for communication base station |
| CN113394867A (en) * | 2021-05-27 | 2021-09-14 | 利天万世新能源有限公司 | Intelligent control energy storage system of 5G communication equipment |
| CN114256912A (en) * | 2021-11-19 | 2022-03-29 | 阿尔特汽车技术股份有限公司 | Control method and system of storage battery and vehicle |
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| CN117039971B (en) * | 2023-10-09 | 2024-01-26 | 广州奥鹏能源科技有限公司 | Intelligent charge and discharge control method and control system for energy storage equipment |
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