CN108258729A - Communication base station power supply guarantee and electricity charge Optimal Control System and method - Google Patents
Communication base station power supply guarantee and electricity charge Optimal Control System and method Download PDFInfo
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- CN108258729A CN108258729A CN201810082744.0A CN201810082744A CN108258729A CN 108258729 A CN108258729 A CN 108258729A CN 201810082744 A CN201810082744 A CN 201810082744A CN 108258729 A CN108258729 A CN 108258729A
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- 230000005611 electricity Effects 0.000 title claims abstract description 154
- 238000004891 communication Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004146 energy storage Methods 0.000 claims abstract description 46
- 238000004378 air conditioning Methods 0.000 claims abstract description 37
- 238000013519 translation Methods 0.000 claims abstract description 9
- 230000002123 temporal effect Effects 0.000 claims abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 130
- 229910052744 lithium Inorganic materials 0.000 claims description 130
- 230000002441 reversible effect Effects 0.000 claims description 49
- 239000002253 acid Substances 0.000 claims description 38
- 238000011217 control strategy Methods 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 22
- 238000010248 power generation Methods 0.000 claims description 19
- 238000005057 refrigeration Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 230000007812 deficiency Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 238000010295 mobile communication Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000004064 recycling Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H02J3/383—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- H02J3/386—
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Abstract
The present invention discloses a kind of communication base station power supply guarantee and electricity charge Optimal Control System and method, including new energy unit, rectification module, energy-storage units, load of base station, DC load, two-way kilowatt-hour meter, air-conditioning, intelligent power distribution unit, central controller, dc bus, it is acted on by the energy storage of energy-storage units, with reference to the electricity price section of different time, the electric energy that new energy unit is sent out carries out temporal translation, and it is controlled air-conditioning as translatable load, only mains-supplied is utilized in electricity price low-valley interval, the electric energy sent out feedback grid when more than loading demand, save the electricity charge and the operation cost of communication base station.The present invention reduces the angle of operation cost of enterprises from mobile communication base station energy efficiency, using innovative technology, for the concrete condition of synthesis cost actually occurred during the operation and maintenance of base station, utilize existing steel tower base station Roof Resources, it proposes to build supply project and the control method that communication base station is combined with new energy, communication base station operation expense is reduced to reach, comprehensive income is improved, preferably ensures communication base station low cost stable operation.
Description
Technical field
The present invention relates to a kind of communication base station power supply guarantee and electricity charge Optimal Control System and methods, belong to mobile communication base
It stands and technical field of new energy power generation.
Background technology
It is analyzed according to market feedback, the electric power system used in communication base station is mostly the alternating current that power grid provides at present, is passed through
Rectification and DC/DC transformation are that Switching Power Supply is powered to communication module.With being gradually increased for energy-saving and emission-reduction dynamics, communication base station
Energy-saving and emission-reduction are increasingly subject to the attention of people, and Standalone Hybrid Wind/pv Power Systems have played very important work in this field
With.The sun is the main source of the energy on the earth, shines upon every a piece of soil of the earth.Wind energy is solar energy in earth table
Another form of expression in face, since the different shape (such as sandy soil ground, vegetation ground and the water surface) of earth surface is to the sun
The heat absorption coefficient of illumination is different, forms the temperature difference at the earth's surface, the temperature of earth's surface air is differently formed cross-ventilation and generates wind
Energy.Therefore, solar energy naturally has very strong complementarity with wind energy in time and geographically.Solar energy and wind energy are in time
Complementarity make wind and solar hybrid generating system in resource have best matching, wind and solar hybrid generating system is resources supplIes
Preferable autonomous power supply system.Therefore honourable mains hybrid electricity generation system has good replicability.
But this power supply mode is there are many problems, because wind energy and solar energy are all highly unstable, in order to carry
High power supply reliability, it is necessary to the generating equipment that breezes up and the rated capacity of solar cell, while also to increase accumulator
Capacity.Even if in this way, in extreme circumstances, such as a long time under cloudy calm condition, it still can not ensure the stabilization of power supply
With it is reliable.
In order to which communication base station energy-saving emission reduction index is better achieved, while ensure the reliable and stable operation of system, new energy
It comes into being with mains hybrid electric power system.Communication base station existing equipment can be made full use of to realize the efficient of clean energy resource in this way
It utilizes, simultaneously because alternating current can reliably avoid the problem that the electricity shortage caused by meteorological condition, either wind-power electricity generation
The capacity of system, solar power system or energy storage device can be greatly lowered.In practical application, need excellent
First with clean energy resource, only alternating current is automatically replenished when clean energy resource is not enough to supply, realizes a kind of adaptation power supply,
And can power grid be transported to direction when clean energy resource institute generated energy is higher than load electricity consumption, while energy-saving and emission-reduction, drop
Low cost creates income.Mobile communication base station most important cost during operation is exactly the electricity charge.
Chinese patent 201710743433.X discloses a kind of smooth storing cogeneration system, is filled including photovoltaic devices and energy storage
It puts；Photovoltaic devices connect power grid, and the alternating current for converting solar energy into identical with mains frequency and phase is delivered to power grid；
Energy storage device connects power grid, has charge mode and discharge mode；When energy storage device is in charge mode, energy storage device is from electricity
Alternating current is obtained in net, and the alternating current of power grid is converted into direct current and is stored；When energy storage device is in discharge mode,
The direct current that itself is stored is converted to the alternating current identical with mains frequency and phase by energy storage device, is delivered to power grid；Energy storage
Device is also connected with photovoltaic devices, is monitored for the working condition to photovoltaic devices and power grid, is switched according to monitored results
The operating mode of itself.The system can coordinate power grid to generate electricity together in peak times of power consumption, to power grid conveying and mains frequency, phase
The electric energy of power grid, in the electricity consumption paddy phase is stored in energy storage device, reaches smooth photovoltaic output power, peak clipping by the identical electric energy in position
Fill valley purpose ensures power grid operation and for coulomb balance.Wherein energy storage device can also track power load situation, ensure
Electric power is less than maximum demand, realizes demand charge management.The load electricity consumption fluctuation very little of mobile communication base station, so only
Only it is that demand charge management is carried out according to electricity consumption, effect is limited, and the peak load shifting of network load cannot be to movement
Base station itself load is translated, therefore to be saved the operating cost of mobile base station or be used as other users to reduce electricity
Take, it is necessary to which more realistic control system and control strategy realize the target of this reduction electricity charge.
Invention content
The present invention is in view of the defects existing in the prior art, it is proposed that a kind of communication base station power supply ensures and electricity charge optimal control
System is reduced the angle of operation cost of enterprises from mobile communication base station energy efficiency, using innovative technology, is transported for base station
The concrete condition of synthesis cost actually occurred in row maintenance process using existing steel tower base station Roof Resources, proposes to build logical
The supply project that letter base station is combined with new energy reduces communication base station operation expense to reach, improves comprehensive income, more
Good guarantee communication base station low cost stable operation.
The technical solution that the present invention takes is：
Communication base station power supply ensures and electricity charge Optimal Control System, including new energy unit, rectification module, energy storage list
Member, load of base station, DC load, two-way kilowatt-hour meter, air-conditioning, intelligent power distribution unit, central controller, dc bus, pass through storage
The energy storage effect of energy unit, with reference to the electricity price section of different time, the electric energy that new energy unit is sent out carries out the time
On translation, and be controlled air-conditioning as translatable load, only sent out in electricity price low-valley interval using mains-supplied
Electric energy when more than loading demand feedback grid, save the electricity charge and the operation cost of communication base station；The new energy list
Member, rectification module, two-way kilowatt-hour meter, air-conditioning are electrically connected with intelligent power distribution unit, and the rectification module other end is connected by being electrically connected
On dc bus, dc bus is energy-storage units, load of base station, DC load provide electric energy.
The energy-storage units include lithium battery, lithium battery reversible controller, base station lead-acid accumulator；The central controller
It is two-way by signal wire and new energy unit, intelligent power distribution unit, rectification module, lithium battery containing digital processing chip
Controller, air-conditioning, base station lead-acid accumulator, load of base station, DC load connection, real time monitoring new energy unit, rectification
Module, lithium battery, air-conditioning, load of base station, DC load and base station lead-acid accumulator working condition；The new energy list
Member includes solar components, wind turbine, solar controller, wind energy controller, kilowatt-hour meter, solar components and solar controller
Electrical connection, wind turbine are electrically connected with wind energy controller, and solar controller and wind energy controller pass through kilowatt-hour meter and intelligent power distribution list
Member connection.
The intelligent power distribution unit includes No.1 solid-state power controller, No. two solid-state power controllers, No. three solid-state work(
Rate controller, No. four solid-state power controllers, ac bus, solid-state power controller are electrically connected with ac bus, are controlled with center
Device processed realizes the optimization power supply and distribution of various energy resources together；The solar controller of new energy unit, wind energy controller pass through
Kilowatt-hour meter and No.1 solid-state power controller incoming transport busbar, alternating current pass through two-way kilowatt-hour meter and No. two solid-state power controllers
Incoming transport busbar, air-conditioning, rectification module are respectively by No. three solid-state power controllers, No. four solid-state power controllers with exchanging
Busbar is connected.
The lithium battery reversible controller is two-way DC/DC converters；The rectification module band power factor correction list
Member.
The dc bus is stored with rectification module, lithium battery reversible controller, load of base station, DC load, base station plumbic acid
Battery is connected, and lithium battery leads to lithium battery reversible controller and is connected on dc bus, carries out electric energy translation control, and base station plumbic acid stores
Battery is used for backup power supply, rectification module only in alternating current off-peak electricity price period using alternating current to DC bus powered.
The energy-storage units cascade utilization lithium battery carries out main electric energy translation control, further reduce base station construction into
This, base station lead-acid accumulator is usually operated at floating charge state, battery life is improved, only under emergency conditions by base station lead acid storage battery
Pond powers to important load.
The communication base station power supply ensures and electricity charge Optimal Control System, with reference to communication base station load condition, the electricity charge
Optimal control method includes new energy and energy-storage units power supply control strategy, mains-supplied control strategy, air conditioner control strategy.Its
Middle new energy and energy-storage units power supply control strategy only access alternating current in low ebb electricity price, include the following steps：
A-1：During low ebb electricity price (24. -8 point), no solar energy access if there is wind energy accesses, then preferentially utilizes wind energy,
Central controller opens No.1 solid-state power controller and No. four solid-state power controllers, and wind energy is female to direct current by rectification module
Line conveys electric energy, and extra electric energy is reversely conveyed to utility grid；During wind energy deficiency, central controller opens No. two solid state power controls
Device processed accesses alternating current, and wind energy and alternating current are together by rectification module to DC bus powered；It is double that central controller opens lithium battery
To controller, lithium battery and base station lead-acid accumulator are charged by dc bus；
A-2：During peak electricity tariff (8. -12 point), there is solar energy access, if there is wind energy accesses, then new energy unit
Control conveys electric energy by intelligent power distribution unit and rectification module to dc bus together from solar energy and wind energy, at this moment center control
Device processed opens No.1 solid-state power controller and No. four solid-state power controllers；If new energy is insufficient, control lithium electric simultaneously
Pond reversible controller makes lithium battery convey electric energy to dc bus, powers jointly to load of base station and other DC loads；If
Generation of electricity by new energy amount is more than loading demand, and central controller opens No. two solid-state power controllers, extra electric energy is reversely conveyed
To utility grid, and at the same time control lithium battery reversible controller charges to lithium battery；This process does not utilize alternating current；
A-3：During flat section electricity price (12. -18 point), there is solar energy access, if there is wind energy accesses, then new energy list
Member control conveys electric energy by intelligent power distribution unit and rectification module to dc bus together from solar energy and wind energy, at this moment central
Controller opens No.1 solid-state power controller and No. four solid-state power controllers；If new energy is insufficient, lithium is controlled simultaneously
Battery reversible controller makes lithium battery power jointly to load of base station and other DC loads to dc bus conveying electric energy；If
Generation of electricity by new energy amount is more than loading demand, and central controller opens No. two solid-state power controllers, extra electric energy is reversely conveyed
To utility grid, and at the same time control lithium battery reversible controller charges to lithium battery；This process does not utilize alternating current；
A-4：During peak electricity tariff (18. -22 point), at this moment accessed almost without solar energy, it is if there is wind energy accesses, then excellent
First with wind energy, central controller opens No.1 solid-state power controller and No. four solid-state power controllers, wind energy pass through rectification
Module conveys electric energy to dc bus, if wind power generation amount is more than loading demand, central controller opens No. two solid state powers
Extra electric energy is reversely conveyed to utility grid by controller, and at the same time control lithium battery reversible controller charges to lithium battery；
If wind energy is insufficient, control lithium battery reversible controller that lithium battery is made to be born jointly to base station to dc bus conveying electric energy simultaneously
It carries and other DC loads is powered；This process does not utilize alternating current；
A-5：During flat section electricity price (22. -24 point), at this moment accessed without solar energy, it is if there is wind energy accesses, then preferential sharp
With wind energy, central controller opens No.1 solid-state power controller and No. four solid-state power controllers, wind energy pass through rectification module
Electric energy is conveyed to dc bus, if wind power generation amount is more than loading demand, central controller opens No. two solid state power controls
Extra electric energy is reversely conveyed to utility grid by device, and at the same time control lithium battery reversible controller charges to lithium battery；If
Wind energy is insufficient, then control simultaneously lithium battery reversible controller make lithium battery to dc bus conveying electric energy jointly to load of base station and
Other DC loads are powered；This process does not utilize alternating current.
System enables mains-supplied strategy when no generation of electricity by new energy accesses, and includes the following steps：
B-1：During low ebb electricity price (24. -8 point), central controller opens No. two solid-state power controller access alternating currents, city
Electricity is by rectification module to DC bus powered；Central controller opens lithium battery reversible controller, lithium battery and base station plumbic acid
Accumulator is charged by dc bus, and load of base station and other DC loads are worked using the electric energy that dc bus provides；
B-2：Other periods, central controller closes No. two solid-state power controllers, while controls lithium battery double-direction control
Device makes lithium battery power jointly to load of base station and other DC loads to dc bus conveying electric energy；Do not utilize alternating current；
B-3：During flat section electricity price (12. -18 point), central controller closes No. two solid-state power controllers, while controls lithium
Battery reversible controller makes lithium battery power jointly to load of base station and other DC loads to dc bus conveying electric energy；This
Process does not utilize alternating current；
B-4：During peak electricity tariff (18. -22 point), central controller closes No. two solid-state power controllers, while controls lithium
Battery reversible controller makes lithium battery power jointly to load of base station and other DC loads to dc bus conveying electric energy；This
Process does not utilize alternating current；
B-5：During flat section electricity price (22. -24 point), central controller closes No. two solid-state power controllers, while controls lithium
Battery reversible controller makes lithium battery power jointly to load of base station and other DC loads to dc bus conveying electric energy；This
Process does not utilize alternating current.
The air conditioner control strategy is by the use of as cold accumulation system, translating refrigeration load, including following in the room of base station
Step：
C-1：Off-peak electricity price period central controller opens No. two solid-state power controllers and No. three solid-state power controllers,
Room temperature is reduced by the electrically actuated low temperature refrigeration of air conditioner pattern in city, room temperature is reduced to minimum set temperature TL and is kept constant；
C-2：Until peak electricity tariff or flat section rate period, central controller closes No. two solid-state power controllers and No. three
Solid-state power controller, air-conditioning are stopped, and since the cold-storage of base station acts on, indoor environment temperature slowly rises, when room temperature height
When the maximum temperature TH of setting, central controller opens No. two solid-state power controllers and No. three solid-state power controllers, city
Electrically actuated air-conditioning constant temperature refrigeration mode, temperature are set as TO, wherein TL<TO≤TH；
C-3：Until off-peak electricity price period arrival, step C-1 is repeated.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art：
The effect of the present invention is, is acted on by the energy storage of energy-storage units, will with reference to the electricity price section of different time
The electric energy that wind energy and solar energy are sent out carries out temporal translation, and is controlled base station air conditioner as translatable load,
Only in electricity price low-valley interval using mains-supplied, the electric energy sent out feedback grid when more than loading demand saves communication
The electricity charge of base station and operation cost.
The effect of the present invention is that cascade utilization lithium battery carries out main charge and discharge control, cascade utilization lithium electricity
Pond refers to Vehicular dynamic battery after less than 80% capacity attenuation to, and the battery for scenes such as communication base station standby electricity, energy storage can
Further to reduce base station cost, base station lead-acid accumulator is usually operated at floating charge state, battery life is improved, only in emergent feelings
It is powered under condition from base station lead-acid accumulator to important load.
The effect of the present invention is that, using air-conditioning as translatable load, most air conditioning electricity consumption is placed on low ebb
Rate period reduces the electricity charge, saves communication base station operation cost.
The effect of the present invention is, is powered when honourable condition is preferable using new energy unit to load of base station, newly
When the electric energy of energy unit output can not meet load of base station requirement, insufficient electric energy part is provided to load by power grid,
Power supply energy, scene and mains hybrid control need automatic adjusument, and seamlessly transit to middle new energy as priority.
Description of the drawings
Fig. 1 is communication base station power supply guarantee and electricity charge Optimal Control System structure diagram in the present invention；
Fig. 2 is lithium battery reversible controller structure diagram in the present invention；
Fig. 3 is rectification unit structure diagram in the present invention；
Fig. 4 is intelligent power distribution cellular construction schematic diagram in the present invention；
Fig. 5 is that solar power generation in the present invention, base station meet and electricity price relation curve；
Fig. 6 is electricity charge optimal control method flow chart in the present invention；
(24. -8 point) control strategy flow chart when Fig. 7 is low ebb electricity price in electricity charge optimal control method of the present invention；
(8. -12 point) control strategy flow chart when Fig. 8 is peak electricity tariff in electricity charge optimal control method of the present invention；
(18. -22 point) control strategy flow chart when Fig. 9 is peak electricity tariff in electricity charge optimal control method of the present invention；
Figure 10 is enabling mains-supplied strategic process when being accessed in electricity charge optimal control method of the present invention without generation of electricity by new energy
Figure；
Figure 11 is airconditioning control strategic process figure in electricity charge optimal control method of the present invention.
In attached drawing, the component representated by each label：1st, new energy unit, 2, rectification module, 3, energy-storage units, 4, base
Stand load, 5, DC load, 6, two-way kilowatt-hour meter, 7, air-conditioning, 8, intelligent power distribution unit, 9, central controller, 10, direct current it is female
Line, 11, lithium battery, 12, lithium battery reversible controller, 13, base station lead-acid accumulator, 14, signal wire, 15, solar components,
16th, wind turbine, 17, solar controller, 18, wind energy controller, 19, kilowatt-hour meter, 20, No.1 solid-state power controller, 21, No. two
Solid-state power controller, 22, No. three solid-state power controllers, 23, No. four solid-state power controllers, 24 ac bus, 25 power
Factor correcting unit.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Fig. 1 is ensured for communication base station power supply and electricity charge Optimal Control System structure diagram, mainly including new energy
Unit 1, rectification module 2, energy-storage units 3, load of base station 4, DC load 5, two-way kilowatt-hour meter 6, air-conditioning 7, intelligent power distribution unit
8th, central controller 9, dc bus 10 are acted on by the energy storage of energy-storage units 3, will be new with reference to the electricity price section of different time
The electric energy that energy power supply unit 1 is sent out carries out temporal translation, and is controlled air-conditioning 7 as translatable load, only
Only in electricity price low-valley interval using mains-supplied, the electric energy sent out feedback grid when more than loading demand saves communication base
The electricity charge stood and operation cost；The new energy unit 1, rectification module 2, two-way kilowatt-hour meter 6, air-conditioning 7 and intelligent power distribution
Unit 8 is electrically connected, and for 2 other end of rectification module by being connected on dc bus 10, dc bus 10 is energy-storage units
3rd, load of base station 4, DC load 5 provide electric energy.The energy-storage units 3 include lithium battery 11, lithium battery reversible controller 12, base
It stands lead-acid accumulator 13.
The lithium battery reversible controller 12 is two-way DC/DC converters, as shown in Figure 2.The rectification module 2 is with active
Rate factor correcting unit 25 as shown in figure 3, ensureing network voltage current in phase position, reduces line loss, improves controller unit
Power density.
The new energy unit 1 includes solar components 15, wind turbine 16, solar controller 17, wind energy controller
18th, kilowatt-hour meter 19, solar components 15 are electrically connected with solar controller 17, and wind turbine 16 is electrically connected with wind energy controller 18, too
Positive energy controller 17 and wind energy controller 18 are connect by kilowatt-hour meter 19 with intelligent power distribution unit 8.
The central controller 9 contains digital processing chip, such as DSP, microcontroller, FPGA, PLC, passes through signal wire 14
With solar controller 17, wind energy controller 18, intelligent power distribution unit 8, rectification module 2, lithium battery reversible controller 12, air-conditioning
7th, base station lead-acid accumulator 13, load of base station 4, DC load 5 connect, real time monitoring solar power generation, wind-power electricity generation, rectification mould
The working condition of block 2, lithium battery 11 and base station lead-acid accumulator 13.
The intelligent power distribution unit 8 is solid including the solid-state power controller 21, three of No.1 solid-state power controller 20, two
State power controller 22, No. four solid-state power controllers 23, ac bus, as shown in figure 4, solid-state power controller is with exchanging mother
Line is electrically connected, and realizes the optimization power supply and distribution of various energy resources together with central controller 9；The solar energy control of new energy unit 1
By 20 incoming transport busbar of kilowatt-hour meter 19 and No.1 solid-state power controller, alternating current passes through double for device 17 processed, wind energy controller 18
To kilowatt-hour meter 6 and No. two 21 incoming transport busbares of solid-state power controller, air-conditioning 7, rectification module 2 pass through No. three solid-state work(respectively
22, No. four solid-state power controllers 23 of rate controller are connected with ac bus.Intelligent power distribution unit 8 with central controller 9 together
Realize the optimization power supply and distribution of various energy resources.Wind-driven generator and solar cell are utilized when honourable condition is preferable to load of base station
4 power supplies, when the electric energy that wind-power electricity generation and solar power generation are exported can not meet load of base station 4 and require, by energy-storage units 3 to
Load of base station 4 is powered, and alternating current is accessed when being still unsatisfactory for and provides insufficient electric energy part to load.Wherein wind energy and solar energy conduct
Preferential power supply energy, scene and mains hybrid control automatic adjusument, and seamlessly transit.
Dc bus 10 and rectification module 2, lithium battery reversible controller 12, load of base station 4, DC load 5, base station plumbic acid
Accumulator 13 is connected, and 11 pass two-way controller of lithium battery is connected on dc bus 10, carries out energy balancing signal control, base station plumbic acid
Accumulator 13 is used for backup power supply, and rectification module 2 is powered using alternating current in low ebb electricity price to load and lithium battery 11.
3 cascade utilization lithium battery 11 of energy-storage units, which carries out main charge and discharge control, further reduces base station construction cost.
Due to service life of lead accumulator influenced by depth of discharge it is very big, if the battery of shallow recycling is used for deeper cavity in use, if
Lead-acid accumulator can be quickly invalidated；Depth of discharge is deeper, and cycle life is shorter；It can make to contract using the time limit during battery overcharge
It is short.Therefore this system cascade utilization lithium battery 11 carries out main charge and discharge control.The either energy density per unit volume of lithium battery 11, also
It is gravimetric specific energy, lithium battery 11 is higher by 3 times or more than lead-acid accumulator.11 volume smaller of lithium battery, weight are lighter, cycle
Long lifespan.Lithium battery 11 is used for the cycle life of electric vehicle generally at 800 times or more, using the lithium electricity of lithium iron phosphate positive material
Pond 11 can reach 2000 times or so, beyond 1.5~5 times of lead-acid accumulator.This greatly reduces the use cost of lithium battery 11,
Service life is extended, improves easy-to-use degree.
Cascade utilization lithium battery 11 refers to Vehicular dynamic battery after less than 80% capacity attenuation to, standby for communication base station
The battery of the scenes such as electricity, energy storage.With the continuous decline of 11 cost of lithium battery, this energy density higher, longer life expectancy electricity
Pond is just becoming more competitive, and scene substitution lead-acid accumulator in part is possibly realized, and cascade utilization battery can be reduced further
Base station construction cost, and make the most of the advantage in scenes such as peak load shifting, solar energy base stations, create value.
The communication base station power supply ensures and electricity charge Optimal Control System, with reference to communication base station load condition, the electricity charge
Optimal control method includes new energy and energy-storage units power supply control strategy, mains-supplied control strategy, air conditioner control strategy, figure
6 be electricity charge optimal control method flow chart in the present invention.
The new energy and energy-storage units power supply control strategy only access alternating current in low ebb electricity price, specifically include following step
Suddenly：
A-1：During low ebb electricity price (24. -8 point), control strategy without solar energy as shown in fig. 7, access, if there is wind at this time
It can access, then preferentially using wind energy, central controller 9 opens No.1 solid-state power controller 20 and No. four solid-state power controllers
23, wind energy conveys electric energy by rectification module 2 to dc bus 10, and extra electric energy is reversely conveyed to utility grid；Wind energy is insufficient
When, central controller 9 opens No. two solid-state power controllers 21 and accesses alternating currents, wind energy and alternating current together by rectification module 2 to
Dc bus 10 is powered；Central controller 9 opens lithium battery reversible controller 12, and lithium battery 11 and base station lead-acid accumulator 13 are logical
Dc bus 10 is crossed to charge；
A-2：During peak electricity tariff (8. -12 point), control strategy is as shown in figure 8, have solar energy access, if there is wind at this time
Can access, then new energy unit 1 control from solar energy and wind energy together by intelligent power distribution unit 8 and rectification module 2 to
Dc bus 10 conveys electric energy, and at this moment central controller 9 opens No.1 solid-state power controller 20 and No. four solid state power controls
Device 23；If new energy is insufficient, control lithium battery reversible controller 12 that lithium battery 11 is made to convey electricity to dc bus 10 simultaneously
Can, it powers jointly to load of base station 4 and other DC loads 5；If generation of electricity by new energy amount is more than loading demand, central controller
9 open No. two solid-state power controllers 21, and extra electric energy is reversely conveyed to utility grid, and at the same time control lithium battery is two-way
Controller 12 charges to lithium battery 11；This process does not utilize alternating current；
A-3：During flat section electricity price (12. -18 point), control strategy at this time is similar to A-2, there is solar energy access, if there is
Wind energy accesses, then new energy unit 1 is controlled by solar energy and wind energy together by intelligent power distribution unit 8 and rectification module 2
Electric energy is conveyed to dc bus 10, at this moment central controller 9 opens No.1 solid-state power controller 20 and No. four solid state power controls
Device 23 processed；If new energy is insufficient, control lithium battery reversible controller 12 that lithium battery 11 is made to be conveyed to dc bus 10 simultaneously
Electric energy is powered jointly to load of base station 4 and other DC loads 5；If generation of electricity by new energy amount is more than loading demand, center control
Device 9 opens No. two solid-state power controllers 21, and extra electric energy is reversely conveyed to utility grid, and at the same time control lithium battery is double
It charges to controller 12 to lithium battery 11；This process does not utilize alternating current；
A-4：During peak electricity tariff (18. -22 point), at this moment control strategy almost without solar energy as shown in figure 9, access, such as
Fruit has wind energy access, then preferentially using wind energy, central controller 9 opens No.1 solid-state power controller 20 and No. four solid state powers
Controller 23, wind energy conveys electric energy by rectification module 2 to dc bus 10, if wind power generation amount is more than loading demand, in
Controller 9 is entreated to open No. two solid-state power controllers 21, extra electric energy is reversely conveyed to utility grid, and at the same time control lithium
Battery reversible controller 12 charges to lithium battery 11；If wind energy is insufficient, lithium battery reversible controller 12 is controlled to make lithium simultaneously
Battery 11 conveys electric energy to dc bus 10 and powers jointly to load of base station 4 and other DC loads 5；This process does not utilize city
Electricity；
A-5：During flat section electricity price (22. -24 point), control strategy at this time is similar to A-4, is at this moment accessed without solar energy,
If there is wind energy accesses, then preferentially using wind energy, central controller 9 opens No.1 solid-state power controller 20 and No. four solid-state work(
Rate controller 23, wind energy conveys electric energy by rectification module 2 to dc bus 10, if wind power generation amount is more than loading demand,
Central controller 9 opens No. two solid-state power controllers 21, and extra electric energy is reversely conveyed to utility grid, and at the same time control
Lithium battery reversible controller 12 charges to lithium battery 11；If wind energy is insufficient, lithium battery reversible controller 12 is controlled to make simultaneously
Lithium battery 11 conveys electric energy to dc bus 10 and powers jointly to load of base station 4 and other DC loads 5；This process does not utilize
Alternating current.
Mains-supplied strategy is enabled during no generation of electricity by new energy access, as shown in Figure 10, is included the following steps：
B-1：During low ebb electricity price (24. -8 point), central controller 9 opens No. two solid-state power controllers 21 and accesses alternating current,
Alternating current is powered by rectification module 2 to dc bus 10；Central controller 9 opens lithium battery reversible controller 12, lithium battery 11
It is charged with base station lead-acid accumulator 13 by dc bus 10, load of base station 4 and other DC loads 5 utilize dc bus
The 10 electric energy work provided；
B-2：During peak electricity tariff (8. -12 point), central controller 9 closes No. two solid-state power controllers 21, controls simultaneously
Lithium battery reversible controller 12 makes lithium battery 11 convey electric energy jointly to load of base station 4 and other DC loads to dc bus 10
5 power supplies；This process does not utilize alternating current；
B-3：During flat section electricity price (12. -18 point), central controller 9 closes No. two solid-state power controllers 21, same to time control
Lithium battery reversible controller 12 processed makes lithium battery 11 be born jointly to load of base station 4 and other direct currents to the conveying of dc bus 10 electric energy
Carry 5 power supplies；This process does not utilize alternating current；
B-4：During peak electricity tariff (18. -22 point), central controller 9 closes No. two solid-state power controllers 21, same to time control
Lithium battery reversible controller 12 processed makes lithium battery 11 be born jointly to load of base station 4 and other direct currents to the conveying of dc bus 10 electric energy
Carry 5 power supplies；This process does not utilize alternating current；
B-5：During flat section electricity price (22. -24 point), central controller 9 closes No. two solid-state power controllers 21, same to time control
Lithium battery reversible controller 12 processed makes lithium battery 11 be born jointly to load of base station 4 and other direct currents to the conveying of dc bus 10 electric energy
Carry 5 power supplies；This process does not utilize alternating current.
The air conditioner control strategy is changed by the use of as cold accumulation system, needing in the room of base station first to carry out heat preservation between base station equipment
Make, heat preserving and insulating material installed additional to door and window, heat preserving and insulating material is installed additional to wall and roof, reduce between base station equipment with extraneous ring
The heat exchange in border, air conditioner control strategy is as shown in figure 11, includes the following steps：
C-1：Off-peak electricity price period central controller 9 opens No. two solid-state power controllers 21 and No. three solid state power controls
Device 22 reduces room temperature by the electrically actuated 7 cryogenic refrigeration pattern of air-conditioning in city, room temperature is reduced to minimum set temperature TL and is kept
It is constant；
C-2：Until peak electricity tariff or flat section rate period, central controller 9 closes No. two 21 Hes of solid-state power controller
No. three solid-state power controllers 22, air-conditioning 7 are stopped, and since the cold-storage of base station acts on, indoor environment temperature slowly rises, when
When room temperature is higher than the maximum temperature TH set, central controller 9 opens No. two solid-state power controllers 21 and No. three solid state powers
Controller 22, the electrically actuated 7 constant temperature refrigeration mode of air-conditioning in city, temperature are set as TO, wherein TL<TO≤TH；
C-3：Until off-peak electricity price period arrival, step C-1 is repeated.
By taking certain communication base station as an example, the specific embodiment of the present invention is introduced.
The power supply guarantee of certain communication base station and electricity charge Optimal Control System are configured to 4kW solar components 15 and 240Ah
Lithium battery 11, electrical energy consumption analysis：
(1) the average daily generated energy of device of solar generating is：4214 ÷ 365=11.5 degree；
(2) the average daily electricity consumption in base station is：(12635+3485) ÷ 365=44.2 degree, wherein load of base station 4 (20A) electricity consumption：
23 degree, 7 electricity consumption of air-conditioning：21.2 degree；
(3) solar power generation time series analysis
Solar power generation meets power supply with base station and electricity price section relation curve is as shown in Figure 5.
Solar power generation concentrates on 8 a.m. to the period between at 18 points in afternoon, wherein 8 points to 12 points (B areas) is peak
1.17 yuan of electricity price/degree, 12 points to 18 points (C areas) are flat 0.76 yuan of section electricity price/degree.
In addition, 0 point to 8 points (A areas) be 0.4 yuan of low ebb electricity price/degree, 18 points to 22 points (D areas) be 1.17 yuan of peak electricity tariff/
Degree, 22 points to 24 points (E areas) are flat 0.76 yuan of section electricity price/degree.
It is about 11 degree in B areas and C areas solar energy gross generation, and two section load electricity consumptions are about：20A×48V×
10h=9.6 degree, ratio of generating power for their own use are 83%.
Based on above-mentioned analysis, the power supply guarantee of the communication base station and electricity charge Optimal Control System implementation method：
(1) A periods, i.e., 24. -8 points are low ebb electricity price, and solar power generation is almost nil, and central controller 9 opens No. two
Solid-state power controller 21 accesses alternating current, and alternating current is powered by rectification module 2 to dc bus 10；Lithium battery 11 and base station plumbic acid
Accumulator 13 absorbs electrical energy for storage by dc bus 10；At this moment it loads by mains-supplied, while city supplies electricity to energy-storage units 3
Lithium battery 11 and base station lead-acid accumulator 13 charge.
(2) B periods, i.e., 8. -12 points are peak electricity tariff, and solar power generation amount is maximum, and solar power generation amount is higher than base station
Load mean power, central controller 9 open the electric discharge mould of No.1 solid-state power controller 20 and lithium battery reversible controller 12
Formula, solar power generation and energy-storage units 3 are jointly load supplying, start base station lead-acid accumulator if 11 electric energy deficiency of lithium battery
13 discharge modes.
(3) the C periods, i.e., 12. -18 points, for flat section electricity price, solar power generation and energy-storage units 3 are jointly load supplying,
Central controller 9 opens the discharge mode of No.1 solid-state power controller 20 and lithium battery reversible controller 12, such as lithium battery 11
Electric energy deficiency then starts 13 discharge mode of base station lead-acid accumulator.
(4) D periods, i.e., 18. -22 points are peak electricity tariff, access almost without solar energy, mainly supplied by energy-storage units 3
Electricity, central controller 9 open the discharge mode of lithium battery reversible controller 12, base station lead are opened if 11 electric energy deficiency of lithium battery
13 discharge mode of acid accumulator.
(5) the E periods, i.e., 22. -24 points, for flat section electricity price, solar power generation zero is mainly powered by energy-storage units 3, in
Controller 9 is entreated to open the discharge mode of lithium battery reversible controller 12, starts base station plumbic acid if 11 electric energy deficiency of lithium battery and stores
13 discharge mode of battery.
Air-conditioning 7 is by the use of as cold accumulation system, using 24. -8 period low ebb electricity prices, passing through the electrically actuated sky in city in the room of base station
7 cryogenic refrigeration patterns is adjusted to reduce room temperature, room temperature are reduced to relatively low set temperature TL, until peak electricity tariff or flat section electricity price
When, air-conditioning 7 is closed, base-station environment temperature slowly rises, and air-conditioning 7 starts constant temperature refrigeration when room temperature is higher than the maximum temperature TH set
Pattern, temperature are set as TO, until off-peak electricity price period arrival, start cryogenic refrigeration pattern.Wherein TL<TO≤TH.By air-conditioning 7
As translatable load, most 7 electricity consumption of air-conditioning is placed on off-peak electricity price period, reduces the electricity charge, saves communication base station operation
Cost.
The foregoing description of the disclosed embodiments, this hair can be realized or use by being only used for professional and technical personnel in the field
It is bright.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized, therefore originally in other embodiments without departing from the spirit or scope of the present invention
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and innovative point phase
Consistent most wide range.
Claims (10)
1. communication base station power supply ensures and electricity charge Optimal Control System, including new energy unit (1), rectification module (2), storage
Energy unit (3), load of base station (4), DC load (5), two-way kilowatt-hour meter (6), air-conditioning (7), which is characterized in that further include intelligence
Power distribution unit (8), central controller (9), dc bus (10) are acted on by the energy storage of energy-storage units (3), with reference to different time
Electricity price section, the electric energy that new energy unit (1) is sent out carries out temporal translation, and using air-conditioning (7) as can
Translation load is controlled, and only in electricity price low-valley interval using mains-supplied, the electric energy sent out is when more than loading demand
Feedback grid saves the electricity charge and the operation cost of communication base station；
The new energy unit (1), rectification module (2), two-way kilowatt-hour meter (6), air-conditioning (7) and intelligent power distribution unit (8)
Electrical connection, for rectification module (2) other end by being connected on dc bus (10), dc bus (10) is energy-storage units
(3), load of base station (4), DC load (5) provide electric energy.
2. communication base station power supply as described in claim 1 ensures and electricity charge Optimal Control System, which is characterized in that the energy storage
Unit (3) includes lithium battery (11), lithium battery reversible controller (12), base station lead-acid accumulator (13)；The central controller
(9) contain digital processing chip, pass through signal wire (14) and new energy unit (1), intelligent power distribution unit (8), rectification mould
Block (2), lithium battery reversible controller (12), air-conditioning (7), base station lead-acid accumulator (13), load of base station (4), DC load (5)
Connection, it is real time monitoring new energy unit (1), rectification module (2), lithium battery (11), air-conditioning (7), load of base station (4), straight
The working condition of current load (5) and base station lead-acid accumulator (13)；The new energy unit (1) is including solar components
(15), wind turbine (16), solar controller (17), wind energy controller (18), kilowatt-hour meter (19), solar components (15) and the sun
Energy controller (17) is electrically connected, and wind turbine (16) is electrically connected with wind energy controller (18), solar controller (17) and wind energy control
Device (18) is connect by kilowatt-hour meter (19) with intelligent power distribution unit (8).
3. communication base station power supply as described in claim 1 ensures and electricity charge Optimal Control System, which is characterized in that the intelligence
Power distribution unit (8) includes No.1 solid-state power controller (20), No. two solid-state power controllers (21), No. three solid state power controls
Device (22), No. four solid-state power controllers (23), ac bus (24), solid-state power controller are electrically connected with ac bus (24)
It connects, realizes the optimization power supply and distribution of various energy resources together with central controller (9)；The solar control of new energy unit (1)
Device (17), wind energy controller (18) by kilowatt-hour meter (19) and No.1 solid-state power controller (20) incoming transport busbar (24),
Alternating current passes through two-way kilowatt-hour meter (6) and No. two solid-state power controller (21) incoming transport busbares (24), air-conditioning (7), rectification mould
Block (2) is connected respectively by No. three solid-state power controllers (22), No. four solid-state power controllers (23) with ac bus (24).
4. communication base station power supply as described in claim 1 ensures and electricity charge Optimal Control System, which is characterized in that the lithium electricity
Pond reversible controller (12) is two-way DC/DC converters；The rectification module (2) is with power factor correction unit (25).
5. communication base station power supply as described in claim 1 ensures and electricity charge Optimal Control System, which is characterized in that the direct current
Busbar (10) is stored with rectification module (2), lithium battery reversible controller (12), load of base station (4), DC load (5), base station plumbic acid
Battery (13) is connected, and lithium battery (11) leads to lithium battery reversible controller (12) and is connected on dc bus (10), carries out electric energy and puts down
Control is moved, base station lead-acid accumulator (13) only utilizes city for backup power supply, rectification module (2) in alternating current off-peak electricity price period
Electricity is powered to dc bus (10).
6. communication base station power supply as described in claim 1 ensures and electricity charge Optimal Control System, which is characterized in that the energy storage
Unit (3) cascade utilization lithium battery (11) carries out main electric energy translation control, further reduces base station construction cost, base station lead
Acid accumulator (13) is usually operated at floating charge state, battery life is improved, only under emergency conditions by base station lead-acid accumulator
(13) it powers to important load.
7. based on the communication base station power supply guarantee described in any one in claim 1-6 and electricity charge Optimal Control System, with reference to
Communication base station load condition, electricity charge optimal control method include new energy and energy-storage units power supply control strategy, mains-supplied
Control strategy, air conditioner control strategy.
8. based on the communication base station power supply guarantee described in claim 7 and the electricity charge optimal control side of electricity charge Optimal Control System
Method, which is characterized in that the new energy and energy-storage units power supply control strategy only access alternating current in low ebb electricity price, including following
Step：
A-1：During low ebb electricity price (24. -8 point), no solar energy access if there is wind energy accesses, then preferentially utilizes wind energy, center
Controller (9) opens No.1 solid-state power controller (20) and No. four solid-state power controllers (23), and wind energy passes through rectification module
(2) electric energy is conveyed to dc bus (10), extra electric energy is reversely conveyed to utility grid；During wind energy deficiency, central controller (9)
Open No. two solid-state power controllers (21) access alternating currents, wind energy and alternating current are together by rectification module (2) to dc bus
(10) it powers；Central controller (9) opens lithium battery reversible controller (12), lithium battery (11) and base station lead-acid accumulator (13)
It is charged by dc bus (10)；
A-2：During peak electricity tariff (8. -12 point), there is solar energy access, if there is wind energy accesses, then new energy unit (1)
Control conveys electric energy by intelligent power distribution unit (8) and rectification module (2) to dc bus (10) together from solar energy and wind energy,
At this moment central controller (9) opens No.1 solid-state power controller (20) and No. four solid-state power controllers (23)；If new energy
Source is insufficient, then controls lithium battery reversible controller (12) that lithium battery (11) is made to convey electric energy to dc bus (10) simultaneously, jointly
It powers to load of base station (4) and other DC loads (5)；If generation of electricity by new energy amount is more than loading demand, central controller (9)
No. two solid-state power controllers (21) are opened, extra electric energy is reversely conveyed to utility grid, and at the same time control lithium battery is double
It charges to controller (12) to lithium battery (11)；This process does not utilize alternating current；
A-3：During flat section electricity price (12. -18 point), there is solar energy access, if there is wind energy accesses, then new energy unit (1)
Control conveys electric energy by intelligent power distribution unit (8) and rectification module (2) to dc bus (10) together from solar energy and wind energy,
At this moment central controller (9) opens No.1 solid-state power controller (20) and No. four solid-state power controllers (23)；If new energy
Source is insufficient, then control simultaneously lithium battery reversible controller (12) make lithium battery (11) to dc bus (10) conveying electric energy jointly to
Load of base station (4) and the power supply of other DC loads (5)；If generation of electricity by new energy amount is more than loading demand, central controller (9) is opened
No. two solid-state power controllers (21) are opened, extra electric energy is reversely conveyed to utility grid, and at the same time control lithium battery is two-way
Controller (12) charges to lithium battery (11)；This process does not utilize alternating current；
A-4：During peak electricity tariff (18. -22 point), at this moment accessed almost without solar energy, it is if there is wind energy accesses, then preferential sharp
With wind energy, central controller (9) opens No.1 solid-state power controller (20) and No. four solid-state power controllers (23), and wind energy is led to
Over commutation module (2) conveys electric energy to dc bus (10), if wind power generation amount is more than loading demand, central controller (9)
No. two solid-state power controllers (21) are opened, extra electric energy is reversely conveyed to utility grid, and at the same time control lithium battery is double
It charges to controller (12) to lithium battery (11)；If wind energy is insufficient, lithium battery reversible controller (12) is controlled to make lithium simultaneously
Battery (11) is powered to dc bus (10) conveying electric energy to load of base station (4) and other DC loads (5) jointly；This process
Do not utilize alternating current；
A-5：It during flat section electricity price (22. -24 point), is at this moment accessed without solar energy, if there is wind energy accesses, then preferentially utilizes wind
Can, central controller (9) opens No.1 solid-state power controller (20) and No. four solid-state power controllers (23), and wind energy passes through whole
Flow module (2) conveys electric energy to dc bus (10), if wind power generation amount is more than loading demand, central controller (9) is opened
No. two solid-state power controllers (21), utility grid is reversely conveyed to by extra electric energy, and at the same time the control two-way control of lithium battery
Device (12) processed is charged to lithium battery (11)；If wind energy is insufficient, lithium battery reversible controller (12) is controlled to make lithium battery simultaneously
(11) it powers jointly to load of base station (4) and other DC loads (5) to dc bus (10) conveying electric energy；This process is unfavorable
Use alternating current.
9. based on the communication base station power supply guarantee described in claim 7 and the electricity charge optimal control side of electricity charge Optimal Control System
Method, which is characterized in that enable mains-supplied strategy during no generation of electricity by new energy access, include the following steps：
B-1：During low ebb electricity price (24. -8 point), central controller (9) opens No. two solid-state power controller (21) access alternating currents,
Alternating current is powered by rectification module (2) to dc bus (10)；Central controller (9) opens lithium battery reversible controller (12),
Lithium battery (11) and base station lead-acid accumulator (13) are charged by dc bus (10), load of base station (4) and other direct currents
Load (5) is worked using the electric energy that dc bus (10) provides；
B-2：Other periods, central controller (9) closes No. two solid-state power controllers (21), while controls the two-way control of lithium battery
Device (12) processed makes lithium battery (11) convey electric energy jointly to load of base station (4) and other DC loads (5) to dc bus (10)
Power supply；Do not utilize alternating current.
10. based on the communication base station power supply guarantee described in claim 7 and the electricity charge optimal control of electricity charge Optimal Control System
Method, which is characterized in that the air conditioner control strategy by the use of as cold accumulation system, being translated to refrigeration load in the room of base station,
Include the following steps：
C-1：Off-peak electricity price period central controller (9) opens No. two solid-state power controllers (21) and No. three solid state power controls
Device (22) reduces room temperature by city electrically actuated air-conditioning (7) cryogenic refrigeration pattern, room temperature is reduced to minimum set temperature TLAnd
It keeps constant；
C-2：Until peak electricity tariff or flat section rate period, central controller (9) close No. two solid-state power controllers (21) and
No. three solid-state power controllers (22), air-conditioning (7) are stopped, since the cold-storage of base station acts on, on indoor environment temperature is slow
It rises, as maximum temperature T of the room temperature higher than settingHWhen, central controller (9) opens No. two solid-state power controllers (21) and No. three
Solid-state power controller (22), city electrically actuated air-conditioning (7) constant temperature refrigeration mode, temperature are set as TO, wherein TL<TO≤TH；
C-3：Until off-peak electricity price period arrival, step C-1 is repeated.
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| CN113394868A (en) * | 2021-05-27 | 2021-09-14 | 利天万世新能源有限公司 | Multi-path energy supply energy-saving system suitable for 5G communication base station |
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