CN105914858A - Measurement and control equipment for wind power storage, energy storage system and control method of measurement and control equipment - Google Patents
Measurement and control equipment for wind power storage, energy storage system and control method of measurement and control equipment Download PDFInfo
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- CN105914858A CN105914858A CN201610488306.5A CN201610488306A CN105914858A CN 105914858 A CN105914858 A CN 105914858A CN 201610488306 A CN201610488306 A CN 201610488306A CN 105914858 A CN105914858 A CN 105914858A
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- wind
- electricity generation
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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
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
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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
Abstract
The invention discloses measurement and control equipment for wind power storage, an energy storage system and a control method of the measurement and control equipment. The measurement and control equipment comprises a measurement and control device, a wind power input end, a power output interface and a wind power collection device, wherein the measurement and control device is connected with the wind power input end and the power output interface; the wind power collection device is connected with the wind power input end and the measurement and control device; the power output interface comprises a plurality of electronic control logic switches which are connected with two ends of a storage battery pack for wind power storage and series tap ends of the storage battery pack; the energy storage system comprises a wind power component, the storage battery pack and a system control device, and comprises at least one set of measurement and control equipment; and the measurement and control equipment changes the combined state of the power output interface under the set measurement and control logic, so that intelligent charging for storage batteries is achieved. By the measurement and control equipment, the lifetime of the storage batteries of the energy storage system for wind power generation can be prolonged; and the charge capacity of the system is increased.
Description
Technical field
The present invention relates to the systems design area of wind-power electricity generation, particularly to a kind of wind-powered electricity generation energy storage measuring and controlling equipment,
Energy-storage system containing this equipment and control method thereof.
Background technology
Wind-powered electricity generation application is the focus of new forms of energy development, and wind-powered electricity generation assembly, also known as wind-driven generator, is to utilize in wind energy plant
The change of flux of coil windings and wind energy is directly translated into a kind of technology of electric energy；The wind generator system of narrow sense
Refer to wind-powered electricity generation assembly, controller and inverter three part more, be not related to accumulator and mechanical part.
Wind generator system is divided into independent wind generator system, grid-connected wind generator system and distributed wind-power generator system
System, the most independent wind-power electricity generation is also known as off-network wind-power electricity generation, mainly (is included multiple stage wind-driven generator by wind-powered electricity generation assembly
Group), controller, accumulator (this specification be referred to as again battery) composition, to power for AC load, also
Need to configure AC inverter；Wind generator system can be divided into independent operating inverter and parallel network reverse by the method for operation
Device.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, and divide the most again
For band accumulator and grid-connected system without accumulator；Industry is generally acknowledged, the grid-connected system of band accumulator
There is schedulability, can be incorporated to or exit electrical network as required, and there is the function of stand-by power supply, be grid-connected wind
The mainstream development direction of power generation technology application.The present stage industry mark to the charging-discharging controller of Accessory Battery
Standardization designs, and is mostly conceived to control accumulator battery overcharge or overdischarge, or additional voltage-controlled with accumulator charged electrical
It is made as the temperature-compensation circuit of content.
In the design of present stage wind generator system, accumulator is considered as a kind of preferable energy storage device subtlely,
One application phenomenon is: wind-force is in scope of design, and the load of institute's matched batteries is normal, but when wind-force is the least,
Even if the machinery adding wind-powered electricity generation component internal adds speed system, the reserve of electricity that can increase is the most limited, it is considered that
When the electric current that wind-powered electricity generation assembly obtains is the most weak, to accumulator charging without contribution.Research is thought, accumulator internal resistance and lotus
The systemic effect of electricity this pair associated variable of state, is not the most fully paid attention to, and industry wishes to seek to one to increase system
System stores electricity, effectively extends accumulator battery service life, reduces 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 wind-powered electricity generation energy-storage system, it is provided that a kind of structure is different from routine
The design of the measuring and controlling equipment of charger, this measuring and controlling equipment has the data acquisition to wind-power electricity generation state and system
Response function, can make wind-powered electricity generation energy-storage system effectively extend the coupling life-span of energy-storage battery, reduces the use of accumulator
Cost, increases the reserve of electricity of described wind-powered electricity generation energy-storage system.
For realizing above-mentioned technical purpose, the invention provides the measuring and controlling equipment of a kind of wind-powered electricity generation energy storage, described observing and controlling
Equipment includes: measure and control device 2, wind-powered electricity generation input 3, power output interface 5 and wind-powered electricity generation harvester 6；Described survey
The power input of control device 2 electrically connects wind-powered electricity generation assembly 1 by wind-powered electricity generation input 3, and its power output end connects power supply
Output interface 5；The input of described wind-powered electricity generation harvester 6 connects wind-powered electricity generation input 3, and its signal output part connects to be surveyed
Control device 2；Described power output interface 5 is made up of some automatically controlled logic switches, and it is connected to the storage of wind-powered electricity generation energy storage
Series connection tap terminals in set of cells 4 two ends and accumulator battery；Described measuring and controlling equipment is by described wind-powered electricity generation input 3
Wind-powered electricity generation state carry out signals collecting, process, setting under measurement and control logic, described accumulator battery 4 is realized intellectuality
Charging.
In the present invention, the described accumulator battery 4 used of mating with measuring and controlling equipment includes the electricity that at least two is connected in series
Pond module, and battery module series connection interface be provided with external connection end.
The measure and control device 2 of described measuring and controlling equipment 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 wind-powered electricity generation harvester 6, and its signal exports
End connects described charging module 2c and interface logic biock 2a respectively；The signal of described interface logic biock 2a is defeated
Go out to hold electric connection of power supply output interface 5, the signal processing module 2b described in the connection of its signal input part；Described charging
The power input electrical connection wind-powered electricity generation input 3 of module 2c or wind-powered electricity generation harvester 6, its power output end electrically connects
Power 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.
Preferably, the output electric current of described charging module not notch shape, frequency and dutycycle.
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 wind-powered electricity generation 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.
Another as technique scheme is improved, and the signals collecting function of described wind-powered electricity generation 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 a kind of wind-powered electricity generation energy-storage system containing above-mentioned measuring and controlling equipment, described wind-powered electricity generation energy-storage system
Including wind-powered electricity generation assembly 1, accumulator battery 4 and system control device；Described wind-powered electricity generation energy-storage system is at least provided with a set of described
Measuring and controlling equipment；Described measuring and controlling equipment can also may be used with the discrete setting of system control device of wind-powered electricity generation energy-storage system routine
By integrated with the system control device of described routine to its partial function or repertoire.
In described wind-powered electricity generation energy-storage system, wind-powered electricity generation assembly 1 includes all change of flux by coil windings and incites somebody to action
Wind energy is changed into the device of electric energy, sets up machinery including unit, unit and component internal and adds the device of speed system；
Described accumulator battery 4 includes the battery module that at least two is connected in series, and the interface of battery module series connection is arranged
There is external connection end；Described accumulator includes arbitrarily can repeatedly charging the secondary cell used, such as lithium battery, lead battery,
Nickel-zinc cell and metal hydrogen storage battery etc..
Arbitrarily, including using unidirectional current, inversion to be, alternating current supplies the rearmounted discharge load of described wind-powered electricity generation energy-storage system 10
Electricity or with any current waveform, the discharge load of rate-adaptive pacemaker, such as household electrical appliance, light fixture, electronic machine, work
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 measuring and controlling equipment, the method is by described wind-powered electricity generation harvester 6
The wind-powered electricity generation state of described wind-powered electricity generation input 3 is carried 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 measuring and controlling equipment that described accumulator battery 4 is realized intelligent charging.
The described measuring and controlling equipment method to accumulator battery intelligent charging, is when described wind-powered electricity generation harvester 6 collects
Wind energy current intensity or the magnitude of voltage of its conversion reflection less than threshold values set by measure and control device 2 time, by accumulator
Whole group of charging modes of group 4, is transformed to the controlled charging battery module in accumulator battery.
Preferably, the described charging modes to controlled battery module, in the setting time to electricity some in accumulator battery
Pond module carries 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 measuring and controlling equipment is that the wind-powered electricity generation energy-storage system being configured with accumulator battery uses, and it connects with regular charger output
The difference of mouth is: charging outfan and the accumulator battery of regular charger is fixing electrical connection, and normally only electricity is connected
The positive pole of accumulator battery, negative pole two ends；And power output interface 5 of the present invention is multiple electric-controlled switchs, except
Connect outside the positive pole of accumulator battery, negative pole two ends, be also connected in accumulator battery the required battery module individually controlled,
Being even connected to cell, described connection is not equal to conduct, and whether this connection conducts depends on this road
Automatically controlled logic switch state corresponding to 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 wind-powered electricity generation assembly, 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 wind-powered electricity generation assembly obtains shows as power form in certain interval, its wind-powered electricity generation electric current, magnitude of voltage and load
All-in resistance is correlated with, and when wind-powered electricity generation electric current relative constancy, wind-powered electricity generation assembly output voltage is directly proportional to load all-in resistance；When
When wind-force is less, the output of wind-powered electricity generation assembly is less, if load all-in resistance is constant, and the output electricity of wind-powered electricity generation assembly
Press the least；When the little voltage being assigned to charging external circuit of wind-powered electricity generation assembly output is equal to even less than accumulator
Load voltage time, accumulator charging terminate completely.
The present invention is to collectively form the base of wind-powered electricity generation charge circuit all-in resistance based on above-mentioned external resistance and accumulator internal resistance
Plinth principle, when wind-powered electricity generation intensity is less than design load lower limit, by the combination of the some logic switches of power output interface 5
Conversion, by the voltage filling accumulator battery, (reducing the battery module quantity in accumulator battery, equivalence reduces in reduction in real time
Internal resistance by rechargable battery), such as reduce accumulator battery one half voltage (reducing the battery module of half in accumulator battery),
Make the internal resistance by rechargable battery reduce half, promote so that the charging current of wind-powered electricity generation assembly obtains；Charged when reducing
When cell voltage but wind-powered electricity generation intensity are 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 wind-powered electricity generation charging current of accumulator obtain and dynamically promote.
The application of this measuring and controlling equipment can be considered the lifting making wind-powered electricity generation assembly 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；With wind
As a example by the lead-acid battery that electricity energy-storage system is conventional, this micropower charging modes can effectively suppress the lead sulfate of negative plate
Crystallization salinization phenomenon, keeps ability of being filled and the payload capability of accumulator.
The present invention solves that the market demand of wind-powered electricity generation 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: use described measuring and controlling equipment the wind-powered electricity generation state of wind-powered electricity generation assembly 1 is carried out signals collecting,
Process, the corresponding combination shape converting the some automatically controlled logic switches of described power output interface 5 under setting measurement and control logic
State, is effectively improved wind-force charge efficiency, increases reserve of electricity；Described measuring and controlling equipment simple in construction, combine various
Change, low cost, adapt to the equipment configratioin requirement of high-end wind-powered electricity generation energy-storage system.
Accompanying drawing explanation
Fig. 1 a is a kind of structural representation of conventional wind power system.
Fig. 1 b is the another kind of structural representation of conventional wind power system.
Fig. 2 a is a kind of base structure schematic diagram of measuring and controlling equipment of the present invention.
Fig. 2 b is a kind of base structure schematic diagram of described wind-powered electricity generation energy-storage system.
Fig. 2 c is described wind-powered electricity generation energy-storage system another kind base structure schematic diagram.
Fig. 3 a is the logic control constructs schematic diagram of a kind of measuring and controlling equipment.
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 is a kind of structural representation of wind-powered electricity generation energy-storage system of the present invention.
Accompanying drawing identifies:
1, wind-powered electricity generation assembly；2, measure and control device；2a, interface logic biock；2b, signal processing module；2c, charging mould
Block；3, wind-powered electricity generation 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, wind-powered electricity generation harvester；7, voltage increase module；8, conventional charging-discharging controller；8a、
Normal charge controller；8b, discharge controller；9, inverter；10, discharge load.
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 general wind power generation system, connects between wind-powered electricity generation assembly 1 and accumulator battery 4
Connecing the conventional charging-discharging controller 8 of use, the design feature of charging circuit is to be connected, simultaneously with accumulator battery 4 electricity in groups
The logic function of charger is relatively simple, and general standardization design is to be conceived to control accumulator battery overcharge (routine sets
It is calculated as constant charge voltage, limits charging current mode), or application dynamic micro-adjustments accumulator charging perseverance on this basis
The temperature-compensation circuit of pressure value.This kind of conventional wind power system can be various at the discharge load 10 that accumulator battery is rearmounted
Form, when load use alternating current time additional inverter 9, wherein charging-discharging controller 8 both can integrated design, also
Can be by charge controller 8a and discharge controller 8b separately design, as shown in Figure 1 b.
Seeing Fig. 2 a, measuring and controlling equipment of the present invention is compared with conventional wind-powered electricity generation charger, and specialized designs has wind-powered electricity generation
Harvester 6 docks with wind-powered electricity generation input 3；Additionally, charging outfan is designed as having multiple automatically controlled logic switch
The power output interface 5 of form, its except electricity be connected accumulator battery two extreme in addition to, be further connected to accumulator battery
In controlled battery module (Fig. 5 a gives a kind of basic engineering example with three charging outfans, and its work is patrolled
Collect described below)；When described measuring and controlling equipment and wind-powered electricity generation assembly 1, accumulator battery composition energy-storage system as shown in Figure 2 b
Time, the charging status signal of wind-powered electricity generation assembly 1 can be obtained by wind-powered electricity generation harvester 6, by measure and control device 2
Process the intelligent charging realized accumulator battery 4.In described wind-powered electricity generation energy-storage system another kind wind-powered electricity generation harvester 6
It is placed in the base structure of measure and control device 2, as shown in Figure 2 c.
Fig. 3 a is a kind of logic control constructs schematic diagram of described measuring and controlling equipment, the wherein internal structure of measure and control device 2
Include interface logic biock 2a, signal processing module 2b and charging module 2c；Described signal processing module 2b
Logic function, include the real-time status signal that wind-powered electricity generation harvester 6 is collected and process, defeated for power supply
Some logic switches combination of outgoing interface 5 provides logic basis；Described wind-powered electricity generation harvester 6 is to wind-powered electricity generation 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, docking port logic module 2a sends corresponding signal, makes some logics of power output interface 5
Switch carries out respective combination, reaches the purpose of design to accumulator battery intelligent charging.
Described is charged as the wind-powered electricity generation assembly 1 charging technique to accumulator 4 known to industry, when measure and control device 2 is used
When integrated module realizes its inside function, described function realizes by programming the CPU of measure and control device.Charging
Module 2c generally comprises rectification circuit, output voltage constant circuit and output current limit circuit, requires technology relatively
Gao Shi, can booster battery charging voltage compensate fine tune temperature control circuit.
The secondary cell of wind-powered electricity generation 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 at wind-powered electricity generation 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 wind-powered electricity generation 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, especially when filling
When the power of electricity module is bigger, Fig. 3 b is the logic control constructs schematic diagram that a kind of charging module is independently arranged.In like manner,
Interface logic biock 2a is equally independently arranged, and Fig. 3 c is the logic control that a kind of interface logic biock is independently arranged
Structural representation processed；When three basic function submodules of described measure and control device 2 are all independently arranged, its basis
As shown in Figure 3 d, this structure is suitable for high-power system and uses logic control constructs.
When the design voltage of wind-powered electricity generation assembly 1 is less than the voltage of accumulator battery 4, need to add in described measuring and controlling equipment
Voltage increase module 7 could realize battery charging；The such as design voltage of wind-powered electricity generation assembly is 48V, electric power storage
The voltage of pond group is 96V, needs, by voltage increase module, charging voltage is promoted to more than 96V；Voltage increase
Module can be independently arranged, and Fig. 4 a is that a kind of control structure adding voltage increase module on the basis of Fig. 3 d states example is shown
Being intended to, voltage increase module is arranged between charging module 2c input and wind-powered electricity generation input 3；In like manner, voltage carries
Rise module and also may be provided between the outfan of charging module 2c and power output interface 5, as shown in Figure 4 b；Electricity
The function of pressure hoisting module can also be integrated with charging module 2c, as illustrated in fig. 4 c.
In the present invention, the assembled state of the some automatically controlled logic switch of described power output interface 5, depends on observing and controlling
The result that device 2 is signal collected to wind-powered electricity generation harvester 6.As a example by design shown in Fig. 5 a, power supply exports
Interface 5 is made up of 3 automatically controlled logic switches, 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 wind-powered electricity generation electric current that wind-force is abundant, wind-powered electricity generation 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 wind-force is less cause wind-powered electricity generation electric current less than design minima lower limit time, measure and control device 2 controls power output interface 5
In logic switch 5b Guan Bi conducting, logic switch 5a and 5c is chosen as "or" logic, or 5a turns on 5c
Turn off, or 5c conducting 5a turns off, so that measure and control device realizes respectively to battery module 4a or battery module 4b
Charging；During it is noted that described logic switch 5a and 5c selects "or" logic, measure and control device need to be kept to charge
The sense of current is corresponding with the polarity by rechargable battery module 4a or battery module 4b, and the charging design of this same polarity can be led to
Crossing the programming realization to measure and control device internal signal processing module 2b, current charge controller the most generally uses umber of pulse
Word circuit engineering, its Implementation Technology is well known to industry.
Stating in example shown in Fig. 5 a, by the conversion of logic switch 5a, 5b, 5c ON/OFF state, permissible
Whole group of charging modes of accumulator battery 4 is transformed to battery module 4a or the charging modes of battery module 4b,
Owing to the voltage by rechargable battery declines one times, the charging current of entrance battery module can be made to obtain and to promote, thus can make
Relatively good charging effect is obtained 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 wind-powered electricity generation assembly is the numerical value that designer selects, this numerical value and the type of accumulator
With capacity (C) be correlated with, such as certain wind-powered electricity generation assembly 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 wind-powered electricity generation assembly
Charging current minima is 0.03C/A, as long as the wind-powered electricity generation electric current that wind-powered electricity generation 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.
The collection to wind-powered electricity generation electric current of the described wind-powered electricity generation harvester 6, can use known proton differential flow at wind-powered electricity generation 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 wind-powered electricity generation electric current
Value, described current value collection or magnitude of voltage collection are equivalence techniques method.
Described measure and control device 2 also can add capacitor, and its technical purpose is to eliminate the impulsive disturbance between circuit；
When wind-powered electricity generation energy-storage system and peripheral apparatus operation thereof, central control system or auxiliary device (are such as attached with battery to patrol
Check system) likely measure and control device is disturbed, add capacitor and can effectively eliminate system coupling to measure and control device
The impact brought；Capacitor can be arranged in parallel the outfan at measure and control device, it is also possible to is arranged in parallel and fills in observing and controlling
The input put, or arrange with input at the outfan of measure and control device simultaneously.
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 wind-powered electricity generation 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 wind-powered electricity generation energy-storage system is any, and Fig. 6 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；As long as collecting wind-powered electricity generation charging current according to wind-powered electricity generation harvester 6 to decline institute
The technical characterstic of performance, carries out data by measure and control device 2 to its signal gathered and compares and logical process, setting
Control the on/off assembled state of the some automatically controlled logic switches of power output interface 5 under fixed logical condition, can realize
Basic fundamental target to energy storage battery group 4 intelligent charging described in the present invention program.
Embodiment 1,
Design the small-power measuring and controlling equipment of a kind of wind-powered electricity generation energy-storage system, and use this equipment and two 12V100Ah
Plumbic acid maintenance-free accumulator, the wind-powered electricity generation assembly altogether structure of 100W be a wind-powered electricity generation energy-storage system.
This measuring and controlling equipment includes measure and control device 2, wind-powered electricity generation input 3, power output interface 5 and wind-powered electricity generation harvester 6,
Measure and control device 2 electrically connects the power output end of wind-powered electricity generation assembly 1 by wind-powered electricity generation input 3；Power output interface 5 is by 3
Individual automatically controlled logic switch forms, and measure and control device 2 connects two by 3 automatically controlled logic switches of power output interface 5
3 external connection end of battery series connection, connect the two ends of the accumulator battery 4 of two batteries series connection and two electricity the most respectively
The centre tap end of pond 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, wind-powered electricity generation
Harvester 6 is built in measure and control device 2, and its input electrically connects with wind-powered electricity generation 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 rectification circuit, output voltage constant circuit and output current limit circuit, and it is right to be set with
Two kinds of mode of operations that whole group storage battery 4 charges or charges single battery, the temperature of balancing cell charging voltage is micro-
Adjust compensation control circuit, use pulse digit technology to realize the technical functionality of described charging module 2c.
Wind-powered electricity generation harvester 6 uses proton differential flow mode to the signals collecting of wind-powered electricity generation electric current, and collection per minute once, will
Wind energy current intensity (or relevant voltage value of conversion process) the data input measure and control device 2 collected processes, if
Determining state logic is: when the wind energy current intensity that wind-powered electricity generation harvester 6 collects is more than 3.00A continuous 3 times,
Logic switch 5a and 5c closes conducting, and logic switch 5b turns off, and now charging module 2c connects two series connection storages
The two ends of set of cells 4；When the wind energy current intensity collected equals to or less than 3.00A continuous 3 times, startup is patrolled
Volume switch 5b Guan Bi conducting, logic switch 5a and 5c according to be programmed to or 5a conducting 5c turn off or 5c lead
Logical 5a turns off, and after this ON/OFF starts, setting cycle is 30 minutes, after 30 minutes to wind energy current intensity again
It is acquired；After this ON/OFF described starts, charging module 2c is made to realize respectively to two accumulator (battery moulds
Block) one of charging, and to the distribution charging of the time such as two accumulator implementations, the charging module charging pole to accumulator
Property is corresponding with the ON/OFF state synchronized of described logic switch.
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.
Wind-powered electricity generation energy-storage system described in the present embodiment, is turned on by logic switch 5a, 5b, 5c in described measuring and controlling equipment
The Intelligent Transformation of/off state, can be when wind energy current intensity is more than 3.00A as used conventional charging device
Work, sets the mode of operation of charging module this state of 2c as constant charge voltage 27.00V, restriction maximum charge
Electric current 18.00A；When wind energy current intensity is equal to or less than 3.00A, the whole group of charging side to accumulator battery 4
Formula real-time transform is to charge battery module 4a or battery module 4b, sets the work under this state of charging module 2c
Operation mode is constant charge voltage 13.50V, limits maximum charging current 18.00A；Due to by the voltage filling accumulator
Decline one times, make the strength of charging current of entrance battery module obtain and promote, thus can obtain battery module relative
Preferably charging effect, it is achieved that the intelligent charging to accumulator battery 4.
The present embodiment can effectively utilize the electric energy that wind-powered electricity generation assembly sends at weak wind environment, and micropower charging modes can simultaneously
Effectively the lead sulfate crystallization salinization phenomenon of negative plate in suppression lead-acid battery, keeps ability of being filled and the load of accumulator
Ability, extends its service life.Described wind-powered electricity generation energy-storage system in the rearmounted constant-current controller of accumulator and LED lamp,
Become a kind of city and speak approvingly of the wind powered street lamp on road；Continue to increase in accumulator front end to arrange photovoltaic module and charging thereof
Controller, becomes a kind of city and speaks approvingly of the wind energy on road, solar energy complementary road 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 wind-powered electricity generation energy storage
Measuring and controlling equipment, remaining method of attachment of energy-storage system, similar with embodiment 1.
The present embodiment has the series-connected batteries structure of 5 external connection end owing to using, and controllable precision is higher, design
For two-stage precision controlling: it is to be considered as by the series-connected batteries of 4 6V100Ah batteries that described extra fine grade controls
Two 12V100Ah series connection are formed, and the centre tap end only controlling 4 6V100Ah battery series connection (only enables 3
Logic switch, is equivalent to the local attachment structure shown in Fig. 5 a), power output interface 5 only enable 3 automatically controlled
Logic switch, is equivalent to described in embodiment 1 respectively to battery module 4a or the charging effect of battery module 4b；When
When the wind energy current intensity that extra fine grade controls, wind-powered electricity generation harvester 6 collects is still equal to or is less than 3.00A,
Start fine grade to control, under the programming Control of measure and control device 2,5 logic switches are turned on accordingly/close
Disconnected combination, it is achieved respectively to time distribution chargings such as 4 6V100Ah battery module implementations, so that entering battery
The wind energy charge strength of module realizes the most indirectly promoting.
The present embodiment can utilize the electric energy that wind-powered electricity generation assembly sends at weak wind environment more 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 wind energy
Indirectly promoting, the electric energy obtained at weak wind environment further with wind-powered electricity generation assembly, 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, and power number can reach wind-powered electricity generation energy storage measuring and controlling equipment
Coupling 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 wind-powered electricity generation 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,
Technical scheme of the present invention is generalized to the application of large and medium-sized wind-powered electricity generation energy-storage system, and the design of measuring and controlling equipment depends on
Wind-powered electricity generation assembly 1, accumulator battery 4 power number depending on, its input/output voltage, electric current according to wind-powered electricity generation assembly 1,
The voltage of accumulator battery 4 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 wind-powered electricity generation assembly 1 of this nickel zinc pile coupling is nominally 330V output, wind-powered electricity generation
The rated power 100KVAh, the maximum current theoretical value about 300A of wind-power electricity generation of design.
Owing to wind-power electricity 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；The method of attachment of automatically controlled logic switch and nickel zinc 4 external connection end of pile group and other assemblies of measuring and controlling equipment,
Remaining method of attachment of energy-storage system, sees shown in Fig. 5 b.
When the wind energy current intensity that wind-powered electricity generation 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, wind-powered electricity generation assembly 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
Time mode of operation be constant charge voltage 297V, limit maximum charging current 300A；When wind-powered electricity generation harvester 6 is adopted
When the wind energy current intensity that collection arrives is equal to or less than 30A, logic switch 5a, 5b, 5c, 5d are at signal processing mould
" 1 " or " 0 " signal that block 2b is sent accordingly by interface logic biock 2a under controlling, re-starts 4 and patrols
Collect the ON/OFF combination of switch, make charging module 2c realize nickel zinc pile 4a, nickel zinc pile 4b or nickel zinc electricity
The charging respectively of heap 4c, charging module 2c now mode of operation is constant charge voltage 99V, limits maximum charge
Electric current 300A；Charging interval is designed as carrying out 3 nickel zinc piles time average distribution respectively, reaches to make full use of
Wind-powered electricity generation assembly weak wind environment generated electricity can technical goal.
Inverter that the present embodiment is generally called in the rearmounted industry of nickel-zinc cell group, AC power distribution cabinet/AC distribution panel, central control system etc.,
Become the wind energy power plant that a kind of city claims.
Embodiment 9,
3 nickel zinc piles described in embodiment 8 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.
The arrangement method of 7 external connection end of 7 automatically controlled logic switches and 6 45V, 3000Ah nickel zinc pile series connection
Principle is similar with embodiment 8, technical goal be the wind energy current intensity that collects when wind-powered electricity generation harvester 6 equal to or
During less than 30A, under the programming Control of signal processing module 2b, automatically controlled to 7 by interface logic biock 2a
Logic switch carries out corresponding ON/OFF combination, and the current intensity making entrance nickel zinc pile charge obtains and indirectly promotes,
Realize respectively to 6 nickel zinc piles equal time distribution charging, make the weak wind-powered electricity generation of wind-powered electricity generation assembly to be fully used.
Above example is only in order to illustrate technical scheme and unrestricted, although with reference to embodiment to the present invention
Be described in detail, it will be understood by those of skill in the art that technical scheme is modified or
Equivalent, without departure from the spirit and scope of technical solution of the present invention, its right that all should contain in the present invention is wanted
Ask in the middle of scope.
Claims (10)
1. a measuring and controlling equipment for wind-powered electricity generation energy storage, defeated including measure and control device (2), wind-powered electricity generation input (3), power supply
Outgoing interface (5) and wind-powered electricity generation harvester (6), it is characterised in that the power input of described measure and control device (2)
By wind-powered electricity generation input (3) electrical connection wind-powered electricity generation assembly (1), its power output end connects power output interface (5)；
The input of described wind-powered electricity generation harvester (6) connects wind-powered electricity generation input (3), and its signal output part connects measure and control device
(2)；Described power output interface (5) is made up of some automatically controlled logic switches, and it is connected to the storage of wind-powered electricity generation energy storage
Series connection tap terminals in set of cells (4) two ends and accumulator battery；Described measuring and controlling equipment is by inputting described wind-powered electricity generation
The wind-powered electricity generation state of end (3) carries out signals collecting, process, to described accumulator battery (4) under setting measurement and control logic
Realize intelligent charging.
Measuring and controlling equipment the most according to claim 1, it is characterised in that described measure and control device (2) includes connecing
Mouth logic module (2a), signal processing module (2b) and charging module (2c), each described submodule selects
The discrete setting of property or shared integrated module realize its function.
Measuring and controlling equipment the most according to claim 2, it is characterised in that described signal processing module (2b)
Signal input part connects wind-powered electricity generation harvester (6), and its signal output part connects charging module (2c) and interface respectively
Logic module (2a)；Signal output part electric connection of power supply output interface (5) of described interface logic biock (2a),
Signal processing module (2b) described in the connection of its signal input part；The power input of described charging module (2c)
Electrical connection wind-powered electricity generation input (3) or wind-powered electricity generation harvester (6), its power output end electric connection of power supply output interface (5),
Its signal input part connects signal processing module (2b).
Measuring and controlling equipment the most according to claim 2, it is characterised in that described measure and control device (2) also includes
Voltage increase module (7), the signal input part of voltage increase module connects signal processing module (2b), and its power supply is defeated
Enter end electrical connection wind-powered electricity generation input (3), power output end electrical connection charging module (2c), or power input to be electrically connected
Connect charging module (2c), power output end electric connection of power supply output interface (5).
Measuring and controlling equipment the most according to claim 4, it is characterised in that described voltage increase module (7)
It is independently arranged, also can be by integrated with described charging module (2c) to its partial function or repertoire.
Measuring and controlling equipment the most according to claim 1, it is characterised in that described wind-powered electricity generation harvester (6)
Signals collecting function is built in measure and control device (2), realizes its part logic merit by the integrated design of measure and control device
Can or whole logic functions.
7. a wind-powered electricity generation energy-storage system, including wind-powered electricity generation assembly (1), accumulator battery (4) and system control device,
It is characterized in that, described system contain the most a set of as arbitrary in claim 1～6 as described in measuring and controlling equipment；Described survey
Control equipment can with the conventional discrete setting of system control device, also can by its partial function or repertoire with described often
The system control device of rule is integrated；Described accumulator battery (4) includes the battery mould that at least two is connected in series
Block, and battery module series connection interface be provided with external connection end.
8. control method based on the arbitrary described measuring and controlling equipment of claim 1～6, the method is gathered by described wind-powered electricity generation
Device (6) carries out signals collecting to the wind-powered electricity generation state of described wind-powered electricity generation input (3), and by described measure and control device (2)
Processing, according to itself and measure and control device (2) the interior comparative result storing data, power supply output described in real-time transform connects
The assembled state of mouth (5) some logic switches, it is achieved to accumulator battery (4) intelligence in described wind-powered electricity generation energy-storage system
Energyization is charged.
Method the most according to claim 8, it is characterised in that described measuring and controlling equipment is to accumulator battery (4)
Intelligent charging, be the wind energy current intensity when wind-powered electricity generation harvester (6) collects or its conversion reflection voltage
When value is less than the threshold values set by measure and control device (2), by whole group of charging modes of accumulator battery (4), it is transformed to
To the controlled charging battery module in accumulator battery.
Method the most according to claim 9, it is characterised in that the described charging side to controlled battery module
Formula, for carrying out charging interval mean allocation to some battery modules in accumulator battery (4) in the setting time.
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Application publication date: 20160831 |