CN105896717A - Energy storage system, charge control device for photovoltaic energy storage, and control method of charge control device - Google Patents
Energy storage system, charge control device for photovoltaic energy storage, and control method of charge control device Download PDFInfo
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- CN105896717A CN105896717A CN201610486858.2A CN201610486858A CN105896717A CN 105896717 A CN105896717 A CN 105896717A CN 201610486858 A CN201610486858 A CN 201610486858A CN 105896717 A CN105896717 A CN 105896717A
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- charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The present invention discloses an energy storage system, a charge control device for photovoltaic energy storage, and a control method of the charge control device. The charge control device includes a monitor and control apparatus, a photovoltaic input end, a power output interface, a photovoltaic acquisition apparatus and a patrol apparatus. The monitor and control apparatus is connected to the photovoltaic input end and the power output interface. The photovoltaic acquisition apparatus is connected to the photovoltaic input end and the monitor and control apparatus. The power output interface includes a plurality of electric control logic switches, is connected to two ends of a storage battery pack for photovoltaic energy storage and is in series connection with a tap end. The patrol apparatus is connected to the monitor and control apparatus and a controlled battery module. The energy storage system includes a photovoltaic component, a storage battery pack and a system control apparatus, and includes at least one set of charge control device. The storage battery is charged intelligently when the charge control device changes a combination state of the power output interface under a set control logic. A service life of the storage battery of the photovoltaic energy storage system is prolonged, and energy storage amount of the system is increased.
Description
Technical field
The present invention relates to the design field of photovoltaic energy storage system, the charging particularly to a kind of photovoltaic energy storage controls to set
Standby, energy-storage system containing this equipment and control method thereof.
Background technology
Photovoltaic application is the focus of new forms of energy development, and photovoltaic module is used again claims solaode, is to utilize quasiconductor circle
Luminous energy is directly translated into a kind of technology of electric energy by the photovoltaic effect in face；Narrow sense photovoltaic generating system many fingers photovoltaic
Assembly, controller and inverter three part, be not related to accumulator and mechanical part.
Photovoltaic generating system is divided into independent photovoltaic generating system, grid-connected photovoltaic power generation system and distributed photovoltaic power generation system
System, wherein independent photovoltaic generating also known as off-network photovoltaic generation, mainly by photovoltaic module (used claim stacked solar cell),
Controller, accumulator (this specification is referred to as again battery) composition, to power for AC load, in addition it is also necessary to join
Put AC inverter；Photovoltaic generating system can be divided into independent operating inverter and combining inverter by the method for operation.OK
Industry is it is contemplated that more than ten years from now on, and market will be turned to grid-connected system by stand alone generating system, be divided into the most again band to store
Battery and grid-connected system without accumulator；Industry is generally acknowledged, the grid-connected system of band accumulator has can
Scheduling property, can be incorporated to or exit electrical network as required, and have the function of stand-by power supply, be grid-connected photovoltaic power generation
The mainstream development direction of technology application.The standardization of the charging-discharging controller of Accessory Battery is set by present stage industry
Meter, is conceived to control accumulator battery overcharge or overdischarge mostly；Through the performance that the energy storage battery life-span is short, enter
One step is at the additional temperature-compensation circuit with the control of accumulator charging voltage as content of charging-discharging controller.
In the design of present stage photovoltaic generating system, accumulator is considered as a kind of preferable energy storage device subtlely,
One application phenomenon is: most area is normally only when 8-17 in the period (summer, the distribution of period in winter different)
Work, even if adding solar tracking control system, the reserve of electricity that can increase is the most limited, it is considered that work as light
When the electric current of photovoltaic assembly acquisition is the most weak, to accumulator charging without contribution.Research is thought, accumulator internal resistance and charging state
The systemic effect of this pair associated variable, is not the most fully paid attention to, and industry wishes to seek to one to increase system storage
Deposit electricity, effectively extend accumulator battery service life, reduce the technical scheme of system cost of electricity-generating.
Summary of the invention
The purpose of the present invention, is the state of the art for conventional photovoltaic energy-storage system, it is provided that a kind of structure is different from
The design of the charge control apparatus of regular charger, this charge control apparatus has photovoltaic generation input state
Data acquisition and system response function, can make photovoltaic generating system effectively extend energy-storage battery coupling use
In the life-span, reduce the replacement cost of accumulator, increase the reserve of electricity of photovoltaic generating system.
For realizing above-mentioned technical purpose, the invention provides the charge control apparatus of a kind of photovoltaic energy storage, described
Charge control apparatus includes: measure and control device 2, photovoltaic input 3, power output interface 5, photovoltaic harvester 6
With inspection device 12；The power input of described measure and control device 2 electrically connects photovoltaic module 1 by photovoltaic input 3,
Its power output end electrically connects with power output interface 5；It is defeated that the input of described photovoltaic harvester 6 connects photovoltaic
Entering end 3, its signal output part connects measure and control device 2；Described power output interface 5 is by some automatically controlled logic switches
Series connection tap terminals in composition, its two ends of accumulator battery 4 being connected to photovoltaic energy storage and accumulator battery；Institute
State charge control apparatus by the photovoltaic state of described photovoltaic input 3 is carried out signals collecting, process, setting
Control, under logic, described accumulator battery 4 is realized intelligent charging.
In the present invention, the described accumulator battery 4 for photovoltaic energy storage includes the battery module that at least two is connected in series,
And the interface of battery module series connection is provided with external connection end.
The measure and control device 2 of described charge control apparatus includes interface logic biock 2a, signal processing module 2b and charging
Module 2c；Each discrete setting of submodule selectivity described or shared integrated module realize its function.
Preferably, the signal input part of described signal processing module 2b connects photovoltaic harvester 6 and inspection device 12,
Its signal output part connects described charging module 2c and interface logic biock 2a respectively；Described interface logic biock
The signal output part electric connection of power supply output interface 5 of 2a, the signal processing module 2b described in the connection of its signal input part；
The power input electrical connection photovoltaic input 3 of described charging module 2c or photovoltaic harvester 6, its power supply exports
End electric connection of power supply output interface 5, its signal input part connects signal processing module 2b.
Preferably, described charging module 2c includes output voltage constant circuit and output current limit circuit.
As a kind of improvement of technique scheme, the discrete setting of charging module 2c in described measure and control device.
Another as technique scheme is improved, the discrete setting of interface logic biock 2a in described measure and control device.
Described measure and control device 2 also includes voltage increase module 7, and the signal input part of voltage increase module connects signal
Processing module 2b, its power input electrical connection photovoltaic input 3, power output end electrical connection charging module 2c,
Or power input electrical connection charging module 2c, power output end electric connection of power supply output interface 5.
Preferably, described voltage increase module 7 is independently arranged, also can be by its partial function or repertoire and institute
The charging module 2c stated is integrated.
In described charge control apparatus, the signal input part of inspection device 12 connects controlled battery in accumulator battery 4
The two ends of module, the measure and control device 2 described in the connection of its signal output part；Described inspection device 12 is independently arranged,
Also can be by integrated with described power output interface 5 to its partial function or repertoire.
The function of described inspection device, is that the status data of battery module controlled in accumulator battery 4 is fed back to observing and controlling
Device (signal processing module 2b), described status data includes that the voltage data of controlled battery module is or/and capacity
Data, realize preferential for charging module 2c under setting logic state to certain controlled battery module or certain group of battery modules
Charging provides logic basis.
Another as technique scheme is improved, and the signals collecting function of described photovoltaic harvester 6 is built in
Measure and control device 2, realizes its part logic function or whole logic function by the integrated design of measure and control device.
The invention also discloses the photovoltaic energy storage system containing above-mentioned charge control apparatus, described photovoltaic energy storage system
Including photovoltaic module 1, accumulator battery 4 and system control device；Described photovoltaic energy storage system is at least provided with a set of institute
The charge control apparatus stated；Described charge control apparatus can also may be used with the conventional discrete setting of system control device
By integrated with the control apparatus integration of described routine to its partial function or repertoire.
The photovoltaic module 1 of described photovoltaic energy storage system includes monocrystal silicon, polysilicon, composite crystal silicon thin film and owns
Utilize interface photovoltaic effect that luminous energy is directly translated into the device of electric energy；Described accumulator battery 4 includes
The battery module that at least two is connected in series, and battery module series connection interface be provided with external connection end；Described accumulator
Including the secondary cell used that arbitrarily can repeatedly charge, such as lithium battery, lead battery, nickel-zinc cell and storage metal
Hydrogen battery etc..The rearmounted discharge load of described photovoltaic energy storage system 10 arbitrarily, including using unidirectional current, inversion for handing over
Stream electricity is powered or with any current waveform, the discharge load of rate-adaptive pacemaker, such as household electrical appliance, light fixture, electronics
Device, industry and civil electric appliance equipment, and include grid-connected local power network.
The invention also discloses the control method of a kind of aforementioned charge control apparatus, the method is filled by described photovoltaic collection
The photovoltaic state putting 6 pairs of photovoltaic inputs 3 carries out signals collecting, and is processed by described measure and control device 2, root
The some logic switches of real-time transform power output interface 5 according to its comparative result of storing data interior with measure and control device 2
Assembled state, makes described charge control apparatus that described accumulator battery 4 is realized intelligent charging.
The described method to accumulator battery intelligent charging, is that the photovoltaic electric current collected when photovoltaic harvester 6 is strong
When magnitude of voltage of degree or its conversion reflection is less than threshold values set by measure and control device 2, whole by described accumulator battery 4
Group charging modes is transformed to the controlled charging battery module in accumulator battery.
Preferably, the described charging to controlled battery module, the electricity fed back according to inspection device 12 for measure and control device 2
Pressure data are or/and capacity data, to voltage or/and the relatively low battery module of capacity preferentially charges；If when aneroid battery
When the real-time voltage of module is or/and capacity is identical, within the setting time, it is carried out charging interval mean allocation.
Described battery module can be cell, it is also possible to be the one that is in series of multiple cell inside/outside
Change product；Described battery module includes that group of battery modules, group of battery modules refer exclusively to more than two battery modules and (include
Two battery modules) connected mode of external series combination, it can be considered a higher battery module of external voltage,
The intelligent combined charging method of some battery modules is depending on specific design.
Described charge control apparatus is that the photovoltaic energy storage system being configured with accumulator battery uses, wherein power output interface 5
Difference with regular charger output interface is: the charging outfan of regular charger and accumulator battery are fixing electricity
Connect, normally only the electricity connected positive pole of accumulator battery, negative pole two ends；And power output interface 5 of the present invention is
Multiple electric-controlled switchs, in addition to connecting the positive pole of accumulator battery, negative pole two ends, are also connected in accumulator battery required
The battery module individually controlled, is even connected to cell, and described connection is not equal to conduct, this connection
Whether conduct the automatically controlled logic switch state depended on corresponding to this road interface end.
The internal resistance of accumulator and charging state are one to associate close variable, and internal resistance is directly proportional to charging state, in other words electricity
During the sky lotus of pond, internal resistance is less, and charge acceptance is strong；And internal resistance is relatively big when battery fullcharging, charge acceptance is weak；
Due to the existence of accumulator internal resistance, external resistance and accumulator internal resistance is made to together constitute accumulator charge circuit
All-in resistance, when coming from the charging current relative constancy of photovoltaic module, the load voltage showed will be in accumulator
Resistance and direct ratio distribution in external resistance, this rule obtains perfect statement in generalized Ohm's law.
The electric energy that photovoltaic module obtains shows as power form in certain interval, its photovoltaic electric current, magnitude of voltage and load
All-in resistance is correlated with, and when photovoltaic electric current relative constancy, photovoltaic module output voltage is directly proportional to load all-in resistance；?
In the case of the daylight setting sun, obnubilation, cloudy all classes, the output that photovoltaic module obtains is less, if the total electricity of load
Hindering constant, the output voltage of photovoltaic module is the least；When output power of photovoltaic module little extremely charging external circuit is assigned to
Voltage equal to the load voltage of even less than accumulator time, accumulator charging terminates completely.
The present invention is to collectively form the base of photovoltaic charged loop all-in resistance based on above-mentioned external resistance and accumulator internal resistance
Plinth principle, when photovoltaic electric intensity of flow is less than design load lower limit, by the some logic switches of power output interface 5
Combined transformation, reduces the voltage by filling accumulator battery in real time and (reduces the battery module quantity in accumulator battery, equivalence
Reduce the internal resistance by rechargable battery), such as reduce accumulator battery one half voltage and (reduce by filling the electricity of half in accumulator battery
Pond module), make the internal resistance by rechargable battery reduce half, promote so that the charging current of battery is obtained by photovoltaic module；
When photovoltaic charged current intensity is still less than design load lower limit, can continue in logic to reduce the quantity by rechargable battery module,
Reduce the voltage by rechargable battery, make the photovoltaic charged electric current of accumulator obtain and dynamically promote.
The application of this charge control apparatus can be considered the lifting making photovoltaic module obtain micropower generating efficiency, and
This micropower charging modes is very effective to the life-span extending energy-storage battery, directly reduces the use cost of accumulator；
As a example by the lead-acid battery that photovoltaic energy storage system is conventional, this micropower charging modes can effectively suppress the sulfur of negative plate
Lead plumbate crystallization salinization phenomenon, keeps ability of being filled and the payload capability of accumulator.
The present invention solves that the market demand of photovoltaic energy storage system provides a kind of practicable technical scheme, make be
System can effectively realize the long term maintenance guarantee to Accessory Battery group in self-operating.
It is an advantage of the current invention that: the photovoltaic state using described charge control apparatus to input photovoltaic module 1 is carried out
Signals collecting, process, under setup control logic, the corresponding conversion some automatically controlled logics of described power output interface 5 are opened
The assembled state closed, is effectively improved photovoltaic charged efficiency, increases reserve of electricity；Described charge control apparatus structure
Simply, combine variation, low cost, adapt to the equipment configratioin requirement of high-end photovoltaic energy storage system.
Accompanying drawing explanation
Fig. 1 a is a kind of structural representation of conventional photovoltaic system.
Fig. 1 b is the another kind of structural representation of conventional photovoltaic system.
Fig. 2 a is the base structure schematic diagram of charge control apparatus of the present invention.
Fig. 2 b is a kind of structural representation of photovoltaic energy storage system of the present invention.
Fig. 3 a is the logic control constructs schematic diagram of a kind of charge control apparatus.
Fig. 3 b is the logic control constructs schematic diagram that charging module is independently arranged.
Fig. 3 c is the logic control constructs schematic diagram that interface logic biock is independently arranged.
Fig. 3 d is the logic control constructs schematic diagram that charging module, interface logic biock are all independently arranged.
Fig. 4 a is a kind of control structure schematic diagram setting up voltage increase module.
Fig. 4 b is the another kind of control structure schematic diagram setting up voltage increase module.
Fig. 4 c is the control structure schematic diagram of voltage increase module and charging module integrated setting.
Fig. 5 a is a kind of logical structure schematic diagram controlling two charging battery modules.
Fig. 5 b is a kind of logical structure schematic diagram controlling three charging battery modules.
Fig. 6 a is the inspection device structural representation of a kind of two battery modules.
Fig. 6 b is the inspection device structural representation of a kind of three battery modules.
Fig. 7 is another structural representation of photovoltaic energy storage system of the present invention.
Accompanying drawing identifies:
1, photovoltaic module；2, measure and control device；2a, interface logic biock；2b, signal processing module；2c, charging mould
Block；3, photovoltaic input；4, accumulator battery；4a, battery module 1；4b, battery module 2；4c, battery
Module 3；5, power output interface；5a, logic switch 1；5b, logic switch 2；5c, logic switch 3；
5d, logic switch 4；6, photovoltaic harvester；7, voltage increase module；8, conventional charging-discharging controller；8a、
Regular charger；8b, discharge controller；9, inverter；10, discharge load；12, inspection device.
Detailed description of the invention
The present invention is described in detail further with embodiment below in conjunction with the accompanying drawings.
Fig. 1 a is a kind of structural representation of conventional photovoltaic system, is connected and makes between photovoltaic module 1 with accumulator battery 4
With conventional charging-discharging controller 8, the design feature of charging circuit is to be connected with accumulator battery 4 electricity in groups, charges simultaneously
The logic function of device is relatively simple, and general standardization design is to be conceived to control accumulator battery overcharge (conventional design is
Constant charge voltage, restriction charging current mode), or application dynamic micro-adjustments accumulator charging constant voltage value on this basis
Temperature-compensation circuit.This kind of conventional photovoltaic system can be various forms at the discharge load 10 that accumulator battery is rearmounted,
The additional inverter 9 when load uses alternating current, wherein charging-discharging controller 8 both can integrated design, it is possible to will fill
Electric controller 8a and discharge controller 8b separately design, as shown in Figure 1 b.
Seeing Fig. 2 a, charge control apparatus of the present invention is compared with conventional photovoltaic charger, and specialized designs has
Photovoltaic harvester 6 docks with photovoltaic input 3；Additionally, charging outfan is designed as having multiple automatically controlled logic
The power output interface 5 of switch form, its except electricity be connected accumulator battery two extreme in addition to, be further connected to electric power storage
(Fig. 5 a gives a kind of basic engineering example with three charging outfans, its work to the controlled battery module of Chi Zuzhong
Make logic described below)；The signal input part of inspection device 12 connects each controlled battery module in accumulator battery
Two ends；When described charge control apparatus forms photovoltaic energy storage as shown in Figure 2 b with photovoltaic module 1, accumulator battery 4
During system, the charging status signal of photovoltaic module 1 can be obtained by photovoltaic harvester 6, by measure and control device 2
Process and realize intelligent charging to accumulator battery 4.Shown in Fig. 2 b, the base structure of photovoltaic energy storage system, also may be used
So that the photovoltaic harvester 6 in described charge control apparatus is built in measure and control device 2.
Fig. 3 a is a kind of logic control constructs schematic diagram of described charge control apparatus, the wherein inside of measure and control device 2
Structure includes interface logic biock 2a, signal processing module 2b and charging module 2c；Described signal processing module
The logic function of 2b, includes the real-time status signal collecting photovoltaic harvester 6 and processes, for power supply
Some logic switches combination of output interface 5 provides logic basis；Described photovoltaic harvester 6 is to photovoltaic input 3
Real-time status signals collecting, both can gather the current intensity of real time charging, it is possible to gather real time charging current transformation
The relative voltage state of reflection, it is also possible to simultaneously gather to improve control accuracy；Described signals collecting may be designed as even
Continuous collection, it is also possible to timing acquiring；Signal processing module 2b to described signal by comparing with interior storage data,
Under setting logical condition, control interface logic biock 2a send corresponding signal, make the some of power output interface 5 patrol
Collect switch and carry out respective combination, reach the purpose of design to accumulator battery intelligent charging.
Described is charged as the DC/DC charging technique to accumulator of the DC source known to industry, when measure and control device 2
When realizing its inside function with integrated module, described function realizes by programming the CPU of measure and control device.Fill
Electricity module 2c generally comprises output voltage constant circuit and output current limit circuit, when technology is required higher, and can
The fine tune temperature control circuit that booster battery charging voltage compensates.
The secondary cell of photovoltaic energy storage system configuration at present is mainly lead-acid accumulator, and it accounts for market because cost performance is high
Dominant position, the defect of lead-acid battery specific energy relatively low (about 30～35VAh/Kg) is not main in photovoltaic energy storage system
Want problem；The monomer specific energy about 100～120VAh/Kg of general lithium battery, the monomer specific energy of Ni-MH battery is about
60～70VAh/Kg, a few class secondary cells use in photovoltaic energy storage system and are respectively arranged with its pluses and minuses.
As the function sub-modules of measure and control device 2, charging module 2c can be independently arranged, the existing all size in market
IC-components module；Power device is discrete with logic control device is conducive to job stability, and Fig. 3 b is one
Plant the logic control constructs schematic diagram that charging module is independently arranged.In like manner, interface logic biock 2a is the most independent
Arranging, Fig. 3 c is the logic control constructs schematic diagram that a kind of interface logic biock is independently arranged；When described measure and control device
When three basic function submodules of 2 are all independently arranged, its basic logic control structure is as shown in Figure 3 d (wherein
Power output interface 5 and inspection device 12 integrated design), this structure is suitable for high-power system and uses.
When the design voltage of photovoltaic module 1 is less than the voltage of accumulator battery 4, need to be in described charge control apparatus
Add voltage increase module 7 could realize battery charging；The design voltage of such as photovoltaic module is 48V,
The voltage of accumulator battery is 96V, needs, by voltage increase module, charging voltage is promoted to more than 96V；Voltage
Hoisting module can be independently arranged, and Fig. 4 a is to add a kind of of voltage increase module on the basis of Fig. 3 d states example to control knot
Structure schematic diagram, voltage increase module is arranged between charging module 2c input and photovoltaic input 3, wherein, electricity
Source output interface 5 and inspection device 12 integrated design；In like manner, voltage increase module also may be provided at charging
Between outfan and the power output interface 5 of module 2c, as shown in Figure 4 b；The function of voltage increase module also may be used
With integrated with charging module 2c, as illustrated in fig. 4 c.
In the present invention, the assembled state of the some automatically controlled logic switches of described power output interface 5, depends on that observing and controlling fills
Put 2 pairs of signal collected results of photovoltaic harvester 6.Fig. 5 a give a kind of power output interface 5 by
The design example of 3 automatically controlled logic switch compositions, except logic switch 5a and 5c is just connecting accumulator battery 4 respectively
Outside pole, negative pole two ends, logic switch 5b is also connected to two battery module 4a and the series connection of battery module 4b
Mouth end；A kind of work-based logic example may be set to: when the photovoltaic electric current that daylight is abundant, photovoltaic harvester 6 obtains
During for normal value, logic switch 5a and the 5c conducting in power output interface 5, logic switch 5b turns off, now
Power output interface 5 connects the two ends of accumulator battery 4, and this connection status is similar with the charging modes of regular charger；
When the daylight setting sun, obnubilation, cloudy all class situations cause photovoltaic charged current values less than design minima, observing and controlling
Device 2 controls the logic switch 5b Guan Bi conducting in power output interface 5, and logic switch 5a and 5c is chosen as "or"
Logic, or 5a conducting 5c shutoff, or 5c conducting 5a shutoff, so that measure and control device realizes respectively to battery mould
Block 4a or battery module 4b charging；During it is noted that described logic switch 5a and 5c selects "or" logic,
Measure and control device charging current direction need to be kept corresponding with the polarity by rechargable battery module 4a or battery module 4b, should
Same polarity charging design can be by the programming realization to measure and control device internal signal processing module 2b.
State in example at the power output interface 5 shown in Fig. 5 a, by logic switch 5a, 5b, 5c ON/OFF shape
The conversion of state, can be being transformed to whole group of charging modes of accumulator battery 4 to battery module 4a or battery module
The charging modes of 4b, owing to the voltage by rechargable battery declines one times, can make the charging current of entrance battery module obtain
Promote, thus can make to be obtained relatively good charging effect by rechargable battery module.
The power output interface 5 stating example shown in Fig. 5 a contains 3 automatically controlled logic switches, coordinates two group of battery modules
The accumulator battery become uses；In like manner, power output interface may be designed in 4 automatically controlled logic switches 3
The accumulator battery of individual battery module composition uses, as shown in Figure 5 b；And so on, can design by n automatically controlled logic
Switch coordinates the accumulator battery of (n-1) individual battery module composition to use (n is the positive integer of >=2)；Described list
Individual automatically controlled logic switch, substitutes a switch including several switch in parallel and uses.
The charging current minima of described photovoltaic module is the numerical value that designer selects, this numerical value and the type of accumulator
With capacity (C) be correlated with, such as certain photovoltaic module charging Accessory Battery group be use capacity be the lead-acid battery of C,
It is 0.03～0.20C/A that known its of industry typically charges normal working current value interval, can set this photovoltaic module
Charging current minima is 0.03C/A, as long as the photovoltaic electric current that photovoltaic harvester 6 collects is less than 0.03C/A,
Measure and control device 2 i.e. sends corresponding logical process signal, controls the some automatically controlled logic switch of power output interface 5
Change the state of on/off combination, make accumulator be subject to charging stream to obtain optimum, and to voltage or/and relatively low being subject to of capacity
Control battery module or group of battery modules are preferentially charged.
The collection to photovoltaic electric current of the described photovoltaic harvester 6, can use known proton differential flow at photovoltaic input 3
Circuit mode, can real-time collection and continual collection also can timing acquiring；In Pulse and Digital Circuits Application Design, it is common that become
It is changed to gather the magnitude of voltage of designed resistance two ends performance in proton differential flow circuit, is sentenced by its magnitude of voltage and know photovoltaic electric current
Value, described current value collection or magnitude of voltage collection are equivalence techniques method.
Certain battery module or group of battery modules are preferentially charged by described measure and control device 2, need first to its storage electricity
State is decision making, and this judgement signal is fed back to measure and control device 2 by inspection device 12, and described signal includes voltage
Data are or/and capacity data；Described group of battery modules includes at least two battery module, when in accumulator battery 4 by
Numerous battery modules be composed in series (such as 8 battery modules) and control accuracy unnecessary the highest time, can be crowd
Many battery modules are divided into some groups (such as 8 battery modules being divided into 2 groups or 4 groups)；Fig. 6 a give one
Inspection device 12 method of attachment design example on architecture basics shown in Fig. 5 a, inspection device 12 is designed with two-way,
It is connected in parallel battery module 4a and the two ends of battery module 4b respectively；Fig. 6 b gives a kind of at knot shown in Fig. 5 b
Inspection device 12 method of attachment design example on the basis of structure, inspection device 12 is designed with three tunnels, is connected in parallel respectively
Battery module 4a, battery module 4b and the two ends of battery module 4c.
The storage capacitance state of battery module or group of battery modules is judged, including real-time voltage and real time capacity, can
Select a monitoring can also monitor simultaneously, can monitor continuously can also periodic monitor, can be in the Charging state of battery, electric discharge
The monitoring of state, static condition also can compare result by comprehensive monitoring；As a example by lead-acid battery, lead-acid battery is in normal work
Corresponding relation, monomer whose general work is there is in the real-time voltage making (including Charging state, electric discharge state) with storage electricity condition
Voltage range is 1.80V to 2.15V, and it corresponds to when being discharged to nominal operating voltage 2.0V with rate during nominal generally
Half lotus state；General voltage performance is the lowest (to include charge/discharge, standing) with batch battery under same state, storage electricity
Capacity is the lowest, as long as the real-time voltage monitoring certain battery module or certain group of battery modules is relatively low, and can be generally
Judge that the storage capacitance of this battery module or this group of battery modules is relatively low, it is preferentially charged.
Known in industry, the real-time voltage of accumulator and storage capacitance non-linear relation, technology is required higher answering
Monitoring battery module or the real time capacity of group of battery modules in real time；The technology of conventional quickly detection battery capacity is to use
Proton differential flow data comparing method, the capacity tester of existing various precision and test device blocks on market, by its with
Battery module or group of battery modules parallel connection can read capacity signal；During use, capacity tester or test device mould
Block need not be in parallel with battery module or group of battery modules normality, is preferably set as that timing is patrolled and examined at signal processing module each
Battery module or group of battery modules read capacity signal (such as at interval of 10 minutes)；As long as monitoring certain battery mould
The real time capacity of block or certain group of battery modules is relatively low, can preferentially charge it.
Described power output interface 5 generally uses the power switch of Digital Signals logic to make, and it automatically controls
Logic is typically designed as, and does not closes (open circuit) when receiving " 0 " signal, closes (electricity when receiving " 1 " signal
Road turns on)；The pulse brought by cell channel for the post equipment and control equipment thereof that eliminate photovoltaic energy storage system is done
Disturb impact, filter protective circuit can be added in the signalling channel of power output interface with measure and control device.
The discharge type of the discharge load 10 of described photovoltaic energy storage system is any, and Fig. 7 is a kind of rearmounted in accumulator 4
Discharge controller 8b makes the system configuration example of loaded work piece；If the operating current of load is alternating current, need to add
Inverter 9, inverter can be integrated in discharge controller, it is also possible to discrete setting.
Following example are merely to illustrate technical scheme, and these technical schemes can be used alone, it is possible to adds
Enter or combine and use other mature technologies.
Embodiment 1,
Design a kind of low power photovoltaic energy storage charge control apparatus, and use this equipment and two 12V100Ah
Plumbic acid maintenance-free accumulator, the photovoltaic module structure altogether of 200W are a photovoltaic energy storage system.
This charge control apparatus includes measure and control device 2, photovoltaic input 3, power output interface 5, photovoltaic collection dress
Putting 6 and inspection device 12, measure and control device 2 electrically connects the power output end of photovoltaic module 1 by photovoltaic input 3；
The signal input part of inspection device 12 connects the two ends of two accumulator (battery module), its signal output part respectively
Connect measure and control device 2；Power output interface 5 is made up of 3 automatically controlled logic switches, measure and control device 2 by this 3
Individual automatically controlled logic switch connects 3 external connection end of two battery series connection, connects the electric power storage of two battery series connection the most respectively
The two ends of pond group 4 and the centre tap end of two battery series connection, its local attachment structure is as shown in Figure 5 a.
The internal structure of measure and control device 2 includes interface logic biock 2a, signal processing module 2b and charging module 2c,
The data using integration process, power model is programmed by CPU and configures and additionally arranges device and realize its function, photovoltaic
Harvester 6 is built in measure and control device 2, and its input electrically connects with photovoltaic input 3, and its outfan is with built-in side
Formula accesses the input of signal processing module 2b, and its local attachment structure is as shown in Figure 3 a；Wherein accumulator is filled
The charging module 2c of electricity includes output voltage constant circuit and output current limit circuit, is set with whole group storage battery
4 chargings or two kinds of mode of operations to single battery charging, the fine tune temperature of balancing cell charging voltage compensates and controls electricity
Road, uses pulse digit technology to realize the technical functionality of described charging module 2c.
The signals collecting of photovoltaic harvester 6 uses proton differential flow mode, collection per minute once, the light that will collect
Volt current intensity (or relevant voltage value of conversion process) data input measure and control device 2 processes, and sets state logic
For: when the photovoltaic electric intensity of flow collected is more than 3.00A continuous 3 times, logic switch 5a and 5c closes conducting,
Logic switch 5b turns off, and now charging module 2c connects the two ends of two series-connected batteries 4；When collect
When photovoltaic electric intensity of flow equals to or less than 3.00A continuous 3 times, start logic switch 5b Guan Bi conducting, logic switch
5a and 5c according to be programmed to or 5a conducting 5c turn off or 5c conducting 5a turn off, this ON/OFF start after
Setting cycle is 30 minutes, after 30 minutes, photovoltaic electric intensity of flow is re-started collection；This ON/OFF described opens
After Dong, charging module 2c is made to realize respectively one of two accumulator being charged；Charging module is to two accumulator
One of charging polarity corresponding with the ON/OFF state synchronized of described logic switch.
Inspection device 12 is to the routine inspection mode of two accumulator for patrolling and examining voltage, and its input stores with two plumbic acids respectively
Battery (battery module) is in parallel, within every 5 minutes, patrols and examines a real-time voltage, and its voltage signal is fed back to observing and controlling
Device 2；Acquisition every time is patrolled and examined voltage data and is updated the data of last time, by the reality of two accumulator by measure and control device
Time voltage data compare, indirectly sentence know its store up capacitance, preferentially to voltage show low accumulator be charged；When
When the real-time voltage of two accumulator is identical, two accumulator are carried out time average distribution charging.
3 automatically controlled logic switch 3a, 3b, 3c of power output interface 5, all use conventional numerical signal to control to open
The power switch closing logic is made, and it automatically controls logical design is not close (open circuit) when receiving " 0 " signal,
(turning circuit) is closed when receiving " 1 " signal.
Photovoltaic energy storage system described in the present embodiment, by logic switch 5a, 5b, 5c in described charge control apparatus
The Intelligent Transformation of ON/OFF state, can such as use conventional charging device when photovoltaic electric intensity of flow is more than 3.00A
Equally work, set the mode of operation of charging module this state of 2c as constant charge voltage 27.00V, restriction maximum
Charging current 18.00A；When photovoltaic electric intensity of flow is equal to or less than 3.00A, whole group of accumulator battery 4 is filled
Electrically real-time transform is to charge battery module 4a or battery module 4b, sets under this state of charging module 2c
Mode of operation be constant charge voltage 13.50V, limit maximum charging current 18.00A；Due to by filling accumulator
Voltage declines one times, makes the strength of charging current of entrance battery module obtain and promotes, thus can obtain battery module
Relatively good charging effect, it is achieved that the intelligent charging to accumulator battery.
The present embodiment effectively adapts to remain to make full use of photovoltaic module in the case of the daylight setting sun, obnubilation, cloudy all classes
At the electric energy that low light environment sends, solar photovoltaic utilization rate is high, and the most this micropower charging modes can effectively suppress plumbic acid
In maintenance-free battery, the lead sulfate crystallization salinization phenomenon of negative plate, keeps ability of being filled and the load-carrying ability of accumulator,
Extend its service life, reduce its replacement cost.Described photovoltaic energy storage system is at the rearmounted constant-current controller of accumulator
And LED lamp, become a kind of city and speak approvingly of the solar street light on road；Continue to increase in accumulator front end to arrange wind
Electricity assembly and charge controller thereof, become a kind of city and speak approvingly of the solar energy on road, wind energy complementary street lamp.
Embodiment 2,
Two 12V100Ah plumbic acid maintenance-free accumulator described in embodiment 1 are changed into the lead of 4 6V100Ah
Acid maintenance-free battery, 4 battery series connection form two extreme and middle 3 series connection tap terminals of accumulator battery 4,
Totally 5 external connection end；Power output interface 5 changes accordingly and is made up of 5 automatically controlled logic switches, and measure and control device 2 passes through
Two of the accumulator battery that these 5 automatically controlled logic switches connect 4 battery series connection respectively extreme and middle 3 series connection
Tap terminals, the row of 5 automatically controlled logic switches and 5 external connection end of series-connected batteries connects method and described photovoltaic energy storage
Charge control apparatus, remaining method of attachment of energy-storage system, similar with embodiment 1.
The present embodiment uses the series-connected batteries structure with 5 external connection end, and controllable precision is higher, is designed as two
Class precision controls: it is that the series-connected batteries of 4 6V100Ah batteries is considered as two that extra fine grade controls
12V100Ah connects formation, only control 4 batteries series connection centre tap end (only enable 3 logic switches,
It is equivalent to the local attachment structure shown in Fig. 5 a), power output interface 5 only enables 3 automatically controlled logic switches, etc.
Imitate in the charging effect described in embodiment 1；When the photovoltaic electric that extra fine grade control, photovoltaic harvester 6 collect
Intensity of flow still≤3.00A time, start fine grade control, under the control of measure and control device 2,5 logics are opened
Pass carries out corresponding ON/OFF combination, it is achieved respectively 4 6V100Ah battery modules are carried out charging, preferentially
Voltage is showed low accumulator be charged, so that the photovoltaic charged intensity entering battery module realizes further
Indirect lifting.The present embodiment can utilize the electric energy that photovoltaic module sends at low light environment fully.
Embodiment 3,
Implement to deform further to embodiment 2, by the plumbic acid maintenance-free accumulator of 4 6V100Ah with 12
The monomer lead-acid battery of 2V100Ah substitutes, and each cell uses the mode that external series connects, outside cell
The interface of portion's series connection is simultaneously as battery module external connection end；Power output interface 5 respective design is 13 automatically controlled logics
Switch composition, it is similar with embodiment 2 that the row of 13 external connection end of itself and 12 cells connects method.
The present embodiment passes through 13 automatically controlled logic switches of power output interface 5 under the programming Control of measure and control device 2
Carry out corresponding ON/OFF combination, thus make the charge strength of entrance cell realize under the more weak state of luminous energy
Indirectly promoting, the electric energy obtained at low light environment further with photovoltaic module, the most respectively to 12 cells
Carry out time average distribution charging, reach effectively to safeguard the purpose of battery.
Embodiment 4,
12 2V100Ah monomer lead-acid batteries described in embodiment 3 are replaced by the list of 16 1.7V100Ah
Body nickel-zinc cell, power output interface 5 respective design is 17 automatically controlled logic switch compositions, itself and 16 monomers
The row of nickel-zinc cell groups of 17 external connection end of series connection connects method, similar with embodiment 3.
The present embodiment is the demand that segments market proposed based on Large Copacity nickel-zinc cell technology maturation in recent years, this kind of nickel
The cryogenic property of zinc battery is remarkable, and typically under-20 DEG C of temperature environments, electric discharge can keep the room temperature capacity of about 90%,
Specific energy, typically up to more than 60Wh/Kg, is the accumulator of road solar street light desired configuration.
Embodiment 5,
On the basis of embodiment 1, add voltage increase module 7, its be independently arranged at the outfan of charging module 2c with
Between power output interface 5, its signal input part connects the signal processing module 2b of measure and control device 2, such as Fig. 4 a
Shown in；This kind of voltage increase module has all size product in market, power number can reach charge control apparatus
Join demand, only need by specification programming after purchasing, insert corresponding data and can use.
In the present embodiment, the lithium battery module of two nominal 60V20Ah is used to be composed in series accumulator battery 4, two
The connector of lithium battery series connection is centre tap end；Power output interface 5 is made up of 3 automatically controlled logic switches equally,
Measure and control device 2 connects two lithium battery modules respectively by 3 automatically controlled logic switches of power output interface 5 and connects
The two ends of accumulator battery 4 and centre tap end, this local attachment structure is similar with embodiment 1.
The present embodiment can effectively adapt to some discharge equipment high voltage energy storage demand to photovoltaic energy storage system.
Embodiment 6,
By integrated with the charging module 2c in measure and control device 2 for the function of the voltage increase module 7 described in embodiment 5
Integrated, as illustrated in fig. 4 c, remaining is similar with embodiment 5, and acquired implementation result is the most similar.
Embodiment 7,
By the charging module 2c discrete design in previous embodiment 1 measure and control device 2, as shown in Figure 3 b, by compiling
Function described in Cheng Shixian；Because the maximum operating currenbt of charging module 2c reaches 18A, charging module 2c's is discrete
The job stability being more beneficial for signal processing module 2b is set.
Embodiment 8,
The routine inspection mode of two accumulator is changed patrolling and examining previous embodiment 1 inspection device 12 into capacity, commercial one
The battery capacity special device blocks of test, the input of this device blocks respectively with two lead-acid accumulator (batteries
Module) in parallel, within every 10 minutes, patrol and examine one-shot battery capacity, and its capacity data signal is fed back to measure and control device (2),
Acquisition every time is patrolled and examined capacity data and is updated the data of last time, by the real time capacity of two accumulator by measure and control device
Data compare, and directly sentence the storage capacitance knowing battery module 4a or battery module 4b, and capacity is showed by real-time priority
Low group of battery modules is charged；When the real time capacity of two accumulator is identical, measure and control device 2 is to battery mould
Block 4a or battery module 4b carries out time average distribution charging.
Remaining is same as in Example 1, due to inspection device 12 to the routine inspection mode of two accumulator for patrolling and examining capacity,
Directly sentencing the storage capacitance knowing battery module 4a or battery module 4b, preferential charging effect is more preferable.
Embodiment 9,
Technical pattern scheme of the present invention is generalized to the application of large and medium-sized photovoltaic energy storage system, and charging control sets
Standby design according to photovoltaic module 1, accumulator battery 4 power number depending on, its input/output voltage, electric current, according to
Photovoltaic module 1, the voltage of accumulator battery of some battery module combinations, current characteristics and design.
In the present embodiment, described controlled battery module by 3 nominal external voltages be 90V, capacity be 3000Ah
Nickel zinc pile composition, each nickel zinc pile is every by the monomer nickel-zinc cell of 52 × 2 nominals 1.71V, 1500Ah
It is in series after two parallel connections, nominal storage electrical power 270KVAh, the accumulator battery that 3 nickel zinc piles are composed in series
4 meter storage electrical power number 810KVAh；The photovoltaic module 1 of this nickel zinc pile coupling is nominally 330V output, photovoltaic
Generated output 100KVAh, the maximum current theoretical value about 300A of photovoltaic generation.
Owing to photovoltaic generation power, the storage electrical power number of the present embodiment are relatively big, the interface logic mould in measure and control device 2
The whole discrete setting of block 2a, signal processing module 2b and charging module 2c, uses high power module to program CPU
And realize its function by additional accessory part；Charging module 2c is set with and charges whole group of nickel-zinc cell 4 or right
Two kinds of mode of operations of single nickel zinc pile charging；Power output interface 5 is designed as the high-power of 4 automatically controlled logics
Switch, respectively two of two extreme and middle nickel zinc piles of the accumulator battery 4 of 3 nickel zinc piles series connection of connection
Tap terminals；Automatically controlled logic switch and the method for attachment of nickel zinc 4 external connection end of pile group, inspection device 12 and other
The local method of attachment of assembly, sees shown in Fig. 5 b and 6b.
When the photovoltaic electric intensity of flow that photovoltaic harvester 6 collects is more than 30A, signal processing module 2b controls
Interface logic biock 2a sends " 1 " signal to logic switch 5a, 5d, makes logic switch 5a, 5d turn on, with
Time logic switch 5b, 5c are sent " 0 " signal, make logic switch 5b, 5c turn off, photovoltaic module 1 is at signal
Processing module 2b control under by charging module 2c, nickel zinc pile group 4 is carried out whole group of charging, charging module 2c this
Mode of operation under state is constant charge voltage 297V, limits maximum charging current 300A；When photovoltaic collection fills
When putting the 6 photovoltaic electric intensity of flows collected equal to or less than 30A, logic switch 5a, 5b, 5c, 5d are at signal
" 1 " or " 0 " signal that processing module 2b is sent accordingly by interface logic biock 2a under controlling, re-starts
The ON/OFF combination of 4 logic switches, make charging module 2c realize nickel zinc pile 4a, nickel zinc pile 4b or
The charging respectively of nickel zinc pile 4c, the mode of operation under this state of charging module 2c be constant charge voltage 99V,
Limit maximum charging current 300A.
The routine inspection mode of three nickel zinc piles can be set to patrol and examine voltage, also such as embodiment 1 scheme by inspection device 12
Can be set to patrol and examine capacity such as embodiment 8 scheme, measure and control device 2 by the real-time voltage of three nickel zinc piles or
Capacity data compares, and preferentially voltage or capacity is showed low nickel zinc pile and is charged；When three nickel zinc piles
When real-time voltage or capacity data are identical, three nickel zinc piles are carried out time average distribution charging, reaches abundant profit
With photovoltaic module low light environment generated electricity can technical goal.The present embodiment leads in the rearmounted industry of nickel-zinc cell group 4
The inverter of title, AC power distribution cabinet/AC distribution panel, central control system etc., become the solar power plant that a kind of city claims.
Embodiment 10,
3 nickel zinc piles described in embodiment 9 are changed into 6 nominal external voltages be 45V, capacity be 3000Ah
Nickel zinc pile, this pile is by series connection after every two parallel connections of the nickel-zinc cell of 26 × 2 nominals 1.71V, 1500Ah
Become, nominal storage electrical power 135KVAh, 6 nickel zinc piles accumulator battery 4 meter storage electrical power number in series with
Sample is 810KVAh；Power output interface 5 respective design is for be made up of 7 automatically controlled logic switches.
7 automatically controlled logic switches and 7 external connection end of 6 45V, 3000Ah nickel zinc pile series-connected batteries 4
Arrangement method principle similar with embodiment 9, technical goal is the photovoltaic electric current when photovoltaic harvester 6 collects
When intensity is equal to or less than 30A, under the programming Control of signal processing module 2b, by interface logic biock 2a
7 automatically controlled logic switches are carried out corresponding ON/OFF combination, and the current intensity making entrance nickel zinc pile charge obtains
Obtain and indirectly promote, realize respectively 6 45V, 3000Ah nickel zinc piles being carried out smart allocation charging further, make
The low light level electric energy of photovoltaic module is fully used.
Above example is only in order to illustrate technical scheme and unrestricted, although with reference to embodiment to the present invention
It is described in detail, it will be understood by those within the art that, technical scheme has been modified
Or equivalent, without departure from the spirit and scope of technical solution of the present invention, it all should contain the power in the present invention
In the middle of profit claimed range.
Claims (10)
1. a charge control apparatus for photovoltaic energy storage, including measure and control device (2), photovoltaic input (3), electricity
Source output interface (5), photovoltaic harvester (6) and inspection device (12), it is characterised in that described observing and controlling fills
Put the power input of (2) by photovoltaic input (3) electrical connection photovoltaic module (1), its power output end with
Power output interface (5) electrically connects；The input of described photovoltaic harvester (6) connects photovoltaic input (3),
Its signal output part connects measure and control device (2)；Described power output interface (5) is made up of some automatically controlled logic switches,
Series connection tap terminals in its accumulator battery (4) two ends being connected to photovoltaic energy storage and accumulator battery；Described charging
Control equipment is by carrying out signals collecting, process, at setup control to the photovoltaic state of described photovoltaic input (3)
Under logic, described accumulator battery (4) is realized intelligent charging.
Charge control apparatus the most according to claim 1, it is characterised in that described measure and control device (2) wraps
Include interface logic biock (2a), signal processing module (2b) and charging module (2c), each described submodule
The discrete setting of selectivity or shared integrated module realize its function.
Charge control apparatus the most according to claim 2, it is characterised in that described signal processing module (2b)
Signal input part connect photovoltaic harvester (6) and described inspection device (12), its signal output part is distinguished
Connect charging module (2c) and interface logic biock (2a)；The signal output part of described interface logic biock (2a)
Electric connection of power supply output interface (5), the signal processing module (2b) described in the connection of its signal input part；Described fills
Power input electrical connection photovoltaic input (3) photovoltaic harvester (6) of electricity module (2c), its power supply exports
End electric connection of power supply output interface (5), its signal input part connects signal processing module (2b).
Charge control apparatus the most according to claim 2, it is characterised in that described measure and control device (2) is also
Including voltage increase module (7), the signal input part of voltage increase module connects signal processing module (2b), its electricity
Source input electrical connection photovoltaic input (3), power output end electrical connection charging module (2c), or power input
Electrical connection charging module (2c), power output end electric connection of power supply output interface (5)；
Described voltage increase module is independently arranged, also can be by its partial function or repertoire and described charging mould
Block (2c) is integrated.
Charge control apparatus the most according to claim 1, it is characterised in that described inspection device (12)
Signal input part connects the two ends of controlled battery module in accumulator battery (4), the survey described in the connection of its signal output part
Control device (2)；Described inspection device (12) is independently arranged, also can be by its partial function or repertoire and institute
State power output interface (5) integrated.
Charge control apparatus the most according to claim 1, it is characterised in that described photovoltaic harvester (6)
Signals collecting function be built in measure and control device (2), realize its part logic by the integrated design of measure and control device
Function or all logic function.
7. a photovoltaic energy storage system, including photovoltaic module (1), accumulator battery (4) and system control device,
It is characterized in that, described photovoltaic energy storage system contain the most a set of as arbitrary in claim 1～6 as described in charging control
Control equipment；Described charge control apparatus can be with the conventional discrete setting of system control device, also can be by its part merit
Energy or repertoire are integrated with the system control device of described routine；Described accumulator battery (4) include to
The interface of the series connection of two battery modules being connected in series, and battery module less is provided with external connection end.
8. control method based on the arbitrary described charge control apparatus of claim 1～6, the method is by described light
Volt harvester (6) carries out signals collecting to the photovoltaic electric stream mode of photovoltaic input (3), and by described observing and controlling
Device (2) processes, according to it with measure and control device in store the comparative result of data and the output of real-time transform power supply connects
The assembled state of mouth (5) some logic switches, makes described charge control apparatus realize described accumulator battery (4)
Intelligent charging.
Method the most according to claim 8, it is characterised in that described charge control apparatus is to accumulator battery (4)
Intelligent charging, be the photovoltaic electric intensity of flow when photovoltaic harvester (6) collects or its conversion reflection voltage
When value is less than the threshold values set by measure and control device (2), it is right to be transformed to by whole group of charging modes of accumulator battery (4)
Controlled charging battery module in accumulator battery.
Method the most according to claim 9, it is characterised in that the described charging to controlled battery module,
The voltage data that feeds back according to inspection device (12) for measure and control device (2) or/and capacity data, to voltage or/and
The relatively low battery module of capacity preferentially charges；When the real-time voltage of some battery modules is or/and capacity is identical,
Within the setting time, it is carried out charging interval mean allocation.
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| CN110868136A (en) * | 2019-11-05 | 2020-03-06 | 哈尔滨工程大学 | Power generation device comprehensively utilizing solar energy and wind energy |
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| JP2013207933A (en) * | 2012-03-28 | 2013-10-07 | Kyocera Corp | Control device, control system, and control method |
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Application publication date: 20160824 |