CN108242820A - Charge-discharge control method of grid-connected electricity storage system and rental service pricing system - Google Patents
Charge-discharge control method of grid-connected electricity storage system and rental service pricing system Download PDFInfo
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- CN108242820A CN108242820A CN201710068613.2A CN201710068613A CN108242820A CN 108242820 A CN108242820 A CN 108242820A CN 201710068613 A CN201710068613 A CN 201710068613A CN 108242820 A CN108242820 A CN 108242820A
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- 230000005611 electricity Effects 0.000 title claims description 79
- 238000005096 rolling process Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 9
- 238000012545 processing Methods 0.000 description 22
- 238000004891 communication Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
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Classifications
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
-
- 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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
A charging and discharging control method of a grid-connected power storage system and a rental service pricing system are provided with a first ammeter and a control device. The first electric meter measures the power demand of the electric load between the grid-connected electric storage system and the electric load. The control device compares the power demand of the electric load with a set range. When the power consumption demand of the power consumption load is larger than the set range, the grid-connected power storage system starts to release electric energy, and the discharge power is the difference value between the power consumption demand and the discharge set value. When the power demand of the power load is within the set range, the grid-connected power storage system does not discharge and store power. When the power consumption demand of the power load is smaller than the set range, the grid-connected power storage system starts to store electric energy, the charging power is the difference value between the discharging set value and the power consumption demand, the charging power and the discharging power are recorded, and relevant data required by the lease service pricing of the grid-connected power storage system are deduced.
Description
Technical field
The present invention is about a kind of charge/discharge control method and lease service pricing system, especially in regard to a kind of grid type storing up electricity
The charge/discharge control method of system and lease service pricing system.
Background technology
Battery electricity storage technology can be divided into self power storage system and grid type power storage system, self storing up electricity according to application form
System is electrically separated using Shi Yu cities, applied to single family house, mobile device or vehicle.Grid type power storage system use when and alternating current
Merge, a power source part is alternating current, and a part is battery storing up electricity, non-moving type facility is typically used in, such as household, quotient
Shop, office, factory etc..
Self power storage system is most commonly applied to electric vehicle, but battery cost, depreciation, management and life problems, makes to disappear
Expense person hesitates to move forward, and dealer and then develops rentable battery service system, and reducing car purchase fee with Lease way uses, exempts depreciation wind
Danger is with providing battery policing services.The pricing mode of self power storage system is that foundation charges the number of degrees to calculate price, that is, is charged
The electricity that Shi Yi enters battery calculates price.In addition, Monthly Fee mode is also adopted, such as user estimates monthly vehicle traveling kilometer
Number, selection traveling grade monthly pay Monthly Fee.
Grid type power storage system because with commercial power parallel, operation mode and national grid charge method are closely bound up.Country
Power grid charge is divided into two projects, one be one section during with how much how many power costs, power cost then according to when
Section demand and different, Critical Peak Pricing highest, peak electricity tariff take second place, third, low ebb electricity price is minimum for flat section electricity price.Another is
Basic electricity price is basic electricity price and maximum depending on maximum demand or transformer capacity that electricity consumer and national grid are signed
Requirement or transformer capacity are directly proportional.The user of two-part rate system price, electricity usage maximum demand is more than maximum needs during one section
Amount or transformer capacity then need the promise breaking for undertaking three times private increase-volume amount basic charge as per installed capacity to use the electricity charge；Other users should bear private increasing
The promise breaking that 50 yuan of every kilowatt of capacity (kilovolt-ampere) uses the electricity charge.Taiwan Power Company refers to one month during defining one section, and requirement is
The mean power of 15 minutes, country variant or Utilities Electric Co.'s definition are different.
If grid type power storage system is applied to the chafing dish restaurant using electromagnetic oven, the peak that chafing dish restaurant starts dining can be cut down
Requirement；Applied to the laundry for using electric heating drying clothing, the peak of power consumption of drying flow after laundry can be cut down；Applied to house
Night in summer air conditioning electricity requirement can be reduced.
In addition, existing grid type power storage system framework, is not suitable for lease valuation.It is loaded in existing grid type power storage system
The measurement position of power demand quantity is positioned at the front end of electric storage device, such as the position of alternating current ammeter in Fig. 1.When load power demand quantity not
Become, power storage system starts to discharge, and the requirement value that alternating current ammeter measures can decline, and former load state can not be presented, such as Fig. 2 institutes
Show.Since the ammeter of existing grid type power storage system can not propose the objective contribution degree of power storage system, such as fill how many electricity, put it is more
Few electricity asks money requirement with how many requirement cut down, and then without normal direction user proposition, therefore existing framework is not suitable for lease valuation.Separately
Outside, grid type power storage system charge and discharge control problem can also be handled.
Invention content
The invention reside in providing a kind of charge/discharge control method of grid type power storage system and lease service pricing system, by
In a manner of concise and is accurate, power storage system is controlled, provides the discharge and recharge of grid type power storage system with cutting down the calculating side of requirement
Method, it is complete that operating effect is presented, and then propose new power storage system lease service pricing system.
Disclosed herein grid type power storage system charge/discharge control method, electricity consumption including measurement electric loading needs
Amount.It measures position and is grid type power storage system and between electric loading.Compare the power demand quantity and setting range with electric loading.
Setting range includes electric discharge setting value and charging setting value, and electric discharge setting value starts the setting of electric discharge for grid type power storage system
Value, the setting value that the charging setting value grid type power storage system starts to charge up, and less than or equal to electric discharge setting value.When electricity consumption is born
When the power demand quantity of load is more than setting range, grid type power storage system starts to discharge electric energy, the electric discharge work(of grid type power storage system
Rate is power demand quantity and the difference for setting value of discharging.When being located at setting range with the power demand quantity of electric loading, grid type storing up electricity
System does not discharge and does not store electricity.When being less than setting range with the power demand quantity of electric loading, grid type power storage system starts
Electric energy is stored, the charge power of grid type power storage system is discharge setting value and the difference of power demand quantity.
Disclosed herein grid type power storage system lease service pricing system, have the first ammeter and control dress
It puts.The power demand quantity of first ammeter measurement electric loading measures position and is grid type power storage system and between electric loading.Control
Device processed is electrically connected the first ammeter and grid type power storage system, compares the power demand quantity and setting range with electric loading.Setting
Range includes electric discharge setting value and charging setting value, and electric discharge setting value starts the setting value of electric discharge for grid type power storage system.It fills
Electric setting value is the setting value that grid type power storage system starts to charge up, and less than or equal to electric discharge setting value.When with electric loading
When power demand quantity is more than setting range, control device control grid type power storage system starts to discharge electricity, and controls grid type storage
The discharge power of electric system is power demand quantity and the difference for setting value of discharging.When being located at setting range with the power demand quantity of electric loading
When, control device control grid type power storage system does not discharge and does not store electricity.It is set when being less than with the power demand quantity of electric loading
During range, control device control grid type power storage system starts to store electricity, and control the charge power of grid type power storage system
For electric discharge setting value and the difference of power demand quantity.
The charge/discharge control method of grid type power storage system according to disclosed by the invention described above and lease service valuation system
System, grid type power storage system with electric loading power demand quantity less period in can store electric power, in electric loading electricity consumption
The electric power of the higher period release storage of requirement, uses reduction power cost, reduces the maximum demand during valuating to reduce base
This electricity charge or fine.Furthermore since grid type power storage system has the problem of battery of high cost, depreciation, management and service life so that simultaneously
Net type power storage system is difficult to push, and therefore, the embodiment of the present invention is also by setting the first ammeter in grid type power storage system with using
Between electric loading, complete presentation electricity consumption load electric behaviour in service is used, avoids the existing alternating current ammeter that only uses that from can not adding in
When grid type power storage system and mains system are supplied electricity to together with electric loading, the electricity consumption load electric behaviour in service that really presents
Problem.The embodiment of the present invention develops grid type power storage system lease according to this by presentation electric loading real power behaviour in service
System so that the expense of grid type power storage system is easier to be received by everybody, and then promotes the extensive degree used.
It is above about the explanation of this disclosure and the explanation of following embodiment demonstrating and explain the present invention
Spirit and principle, and provide the present invention claims further explain.
Description of the drawings
Fig. 1 is the setting schematic diagram of grid type power storage system in the prior art.
Fig. 2 is the power graph that grid type power storage system discharge power is measured with alternating current ammeter in the prior art.
Fig. 3 is the functional block diagram according to the grid type power storage system depicted in one embodiment of the invention.
Fig. 4 is the functional block diagram according to the lease service pricing system depicted in one embodiment of the invention.
Fig. 5 is according to use electrical load power, alternating current ammeter measurement result and the first electricity depicted in one embodiment of the invention
The power graph of table measurement result.
Fig. 6 is the functional block diagram according to the control device depicted in one embodiment of the invention.
Fig. 7 is the control logic figure according to the control device depicted in one embodiment of the invention.
Fig. 8 is according to power demand quantity, the schematic diagram of charge power and discharge power depicted in one embodiment of the invention.
Fig. 9 is the functional block diagram according to the lease service pricing system depicted in another embodiment of the present invention.
Figure 10 is the functional block diagram according to the control device depicted in another embodiment of the present invention.
Figure 11 is the control logic figure according to the control device depicted in another embodiment of the present invention.
【Reference sign】
1 grid type power storage system
10 cutting-in control modules
12 communication modules
14 frequency-variable modules
16 battery protection modules
18 battery management modules
19 battery modules
2nd, 6 lease service pricing system
20th, 60 first ammeter
22nd, 62 control device
221st, 621 communication interface
222nd, 622 processing unit
223rd, 623 storage unit
3 use electric loading
4 mains systems
64 second ammeters
Specific embodiment
The detailed features and advantage of the narration present invention, content are enough to make any ability in detail in embodiments below
Domain skilled artisans will appreciate that the present invention technology contents and implement according to this, and content, right according to disclosed by this specification
Claimed range and attached drawing, any those of ordinary skill in the art can be readily understood upon the relevant purpose of the present invention and advantage.
Following embodiment is further described the viewpoint of the present invention, but non-anyways to limit scope of the invention.
It is the setting schematic diagram for being painted grid type power storage system in the prior art to please refer to Fig. 1 and Fig. 2, Fig. 1, and grid type stores up
Electric system supplies electricity to use electric loading with alternating current together, and grid type power storage system is set between load and alternating current ammeter, and Fig. 2 is existing
The power graph that grid type power storage system discharge power is measured with alternating current ammeter in technology.It is fixed when with electric loading, grid type
When power storage system discharges, the power that system is entered by alternating current is reduced, and decline can be presented in the power that alternating current ammeter measures, and can not present
With the situation of the practical electricity consumption of electric loading, as shown in Figure 2.
Therefore, the present embodiment provides lease service pricing systems, can be used to the charge and discharge of control grid type power storage system, record
With the practical electricity consumption situation of electric loading, the contribution of grid type power storage system actual power is assessed according to this, calculates lease grid type according to this
The price of power storage system.
Fig. 3 is please referred to, Fig. 3 is the functional block diagram according to the grid type power storage system depicted in one embodiment of the invention.
As shown in figure 3, grid type power storage system 1 has cutting-in control module 10, communication module 12, frequency-variable module 14, battery protection mould
Block 16, battery management module 18 and battery module 19.In use, cutting-in control module 10 detects line voltage, frequency and phase,
Control frequency-variable module 14 that direct current measurement in battery module 19 is converted into the alternating current with alternating current same frequency, same-phase, Zai Yu cities
It is electrically in parallel.Cutting-in control module 10 receives control signal also through communication module 12, according to control signal adjustment frequency-variable module 14
Discharge power or charge power.Communication module can be RS232, RS485, CANBUS or other suitable communication interfaces, control
Signal is, for example, analog signal or digital signal, to indicate the signal content such as 0~10V, 4~20mA.Battery protection mould
Block 16 does not overcharge to ensure battery module 19, crosses and put, overcurrent, overheat and in a manner of short-circuit external circuit and electricity be isolated
Pond module 19.Battery management module 18 in time controls battery protection mould to detect the charging and discharging state of battery module 19
Block 16 manages the charge and discharge of battery module 19, and allowing according to this in battery module 19 has a great deal of, and performance differs to each other
Battery, can be efficiently managed, avoid over-discharge.
Please with reference to Fig. 3 to Fig. 5, Fig. 4 is according to the lease service pricing system depicted in one embodiment of the invention
Functional block diagram, Fig. 5 are surveyed according to grid type power storage system, mains system and the first ammeter depicted in one embodiment of the invention
The power graph of amount.As shown in figure 4, in this present embodiment, lease service pricing system 2 has the first ammeter 20 and control dress
Put 22.First ammeter 20 is set in load demand measurement point, and load demand measurement point position is in grid type power storage system 1 and electricity consumption
Between load 3, using the power demand quantity of the first ammeter 20 measurement electric loading 3,3 electricity usage of original electric loading is completely presented
Situation, and it is non-measured merged with grid type power storage system 1 with mains system 4 to electric loading 3 power after, mains system 4 supplies
Supply electricity to the power supply situation with electric loading 3.
As shown in figure 4, control device 22 connects the first ammeter 20, control device 22 is made to read electricity consumption using the first ammeter 20
The power demand quantity of load 3 to control grid type power storage system 1, such as the output control signal of control device 22, is stored up by grid type
The communication module 12 of electric system 1 receives control signal, makes cutting-in control module 10 according to control signal adjustment frequency-variable module 14
Discharge power or charge power, but not limited to this.Specifically, control device 22 can compare the power demand quantity with electric loading 3
With a setting range.Setting range includes electric discharge setting value and charging setting value, and electric discharge setting value is grid type power storage system 1
Start the setting value of electric discharge, charging setting value is the setting value that grid type power storage system 1 starts to charge up.Charging setting value be less than or
Equal to electric discharge setting value.When being higher than setting range with the power demand quantity of electric loading 3, that is, during more than electric discharge setting value, control
Device 22 controls grid type power storage system 1 to start to discharge electricity, and controls the discharge power of 1 release electricity of grid type power storage system
For power demand quantity and the difference of electric discharge setting value.When being located at setting range with the power demand quantity of electric loading, that is, between electric discharge
When between setting value and charging setting value, control device 22 controls grid type power storage system 1 not discharge and do not store electricity.When with
The power demand quantity of electric loading 3 be less than setting range when, that is, less than charging setting value when, control device 22 control grid type storing up electricity
System 1 starts to store electricity, and the charge power that grid type power storage system 1 is controlled to store electricity is needed for electric discharge setting value and electricity consumption
The difference of amount.
Electric discharge setting value be according to be inhibited requirement, 1 frequency converter peak power output of grid type power storage system with it is grid-connected
The factors such as the electricity storable capacity of type power storage system 1 determine.The setting value that charges is in order to avoid grid type power storage system 1 is in charge and discharge
Between shake, setting value of usually less than discharging, as deviate it is how much related with 1 characteristic of grid type power storage system.
Power demand quantity with electric loading 3 is the average power content in a period of time section or the shifting in a period of time section
Dynamic average power content.A period of time section length can coordinate Utilities Electric Co. or national grid requirement defines or specific demand adjustment.
Such as Taiwan Power Company defines the mean power that requirement is 15 minutes, the power demand quantity measured by the first ammeter 20 is then to use
Electric loading 3 was in the mean power of every 15 minutes.Since country variant or Utilities Electric Co. are different for the definition of power demand quantity, first
Power demand quantity measured by ammeter 20 requirement can be defined according to each Utilities Electric Co. or specific demand adjusts.
In one embodiment, control device 22 is in addition to as in the foregoing embodiment, according to the power demand quantity for using electric loading 3
Control other than 1 charge and discharge of grid type power storage system, also during one is valuated in, the electricity consumption that the first ammeter 20 of record is read needs
The discharge power and charge power of amount, grid type power storage system 1, the power storage system operating statistical number in generating according to this during valuating
According to.Power storage system operating statistical data report maximum containing period cuts down requirement, the period charging number of degrees and the period electric discharge number of degrees.
Please with reference to Fig. 3 to Fig. 8, Fig. 6 is the function block according to the control device depicted in one embodiment of the invention
Figure, Fig. 7 are the control logic figures according to the control device depicted in one embodiment of the invention, and Fig. 8 is implemented according to the present invention one
The schematic diagram of power demand quantity, charge power and discharge power depicted in example.As shown in the figure, control device 22 has communication interface
221st, processing unit 222 and storage unit 223.Communication interface 221 is electrically connected the first ammeter 20 and grid type power storage system 1.
In step S501, processing unit 222 reads the electric power of the first ammeter 20 measurement electric loading 3 by communication interface 221.
In step S503 processing unit 222 according to reading electric power calculating with electric loading 3 in a period of time section electric power
Average value, obtain the power demand quantity with electric loading 3, and in step S505, processing unit 222 store the use for using electric loading 3
Electric requirement is in storage unit 223.In step s 507, whether the power demand quantity of 222 judgement electric loading 3 of processing unit is more than and puts
Electric setting value.In step S509, when being more than electric discharge setting value with the power demand quantity of electric loading 3, processing unit 222 passes through logical
Letter interface 221 outputs control signals to grid type power storage system 1, and control grid type power storage system 1 starts to discharge with discharge power.
Discharge power is power demand quantity and the difference for setting value of discharging, and in step S511, stores the value of discharge power.
In step S513, when with the power demand quantity of electric loading 3 no more than electric discharge setting value, processing unit 222 judges
Whether it is less than charging setting value with the power demand quantity of electric loading 3.In step S515, it is less than when with the power demand quantity of electric loading 3
During the setting value that charges, processing unit 222 outputs control signals to grid type power storage system 1 by communication interface 221, and control is grid-connected
Type power storage system 1 is started to charge up with charge power.Charge power is discharge setting value and the difference of power demand quantity, and in step
In S517, processing unit 222 stores the value of charge power in storage unit 223.It is put when being not more than with the power demand quantity of electric loading 3
Electric setting value and not less than charging setting value when, that is, between electric discharge setting value and charging setting value between when, processing unit 222
Grid type power storage system 1 is output control signals to by communication interface 221, control grid type power storage system 1, which does not charge, also not to be put
Electricity.
In one embodiment, during valuation in power storage system operating statistical data in, during which maximum cut down requirement be
During valuation, the maximum demand of alternating current ammeter, that is, middle alternating current electricity during valuation are subtracted with the maximum power consumption requirement of electric loading 3
The maximum value of table requirement value.In other words, during valuation be, for example, Utilities Electric Co. charge during, such as each moon calculate the electricity charge
Once, it is then one month during valuation, but not limited to this.And the period charging number of degrees are grid type power storage system during valuation
The summation of 1 charge power divided by the number of charge power storage per hour, the number of degrees that during which discharge are grid type storage during valuation
The summation of the discharge power of electric system 1 divided by the number of discharge power storage per hour.
In another embodiment, during valuation in power storage system operating statistical data in, during which maximum cut down requirement
During valuation, the maximum demand of same period alternating current electricity charge list, the same period alternating current electricity charge are subtracted with the maximum power consumption requirement of electric loading 3
The maximum demand of middle alternating current electricity charge list valuation during single maximum demand that is, the same period valuate.In other words, it is, for example, during valuation
During the charge of Utilities Electric Co., the maximum demand of alternating current electricity charge list valuation is then the maximum demand of secondary Utilities Electric Co.'s charge, but
It is not limited.
In the data that power storage system operating statistical data is presented, during which discharge the number of degrees divided by the period charging number of degrees, can obtain simultaneously
The charge efficiency of net type power storage system 1, charge efficiency are to judge the important evidence of power storage system quality.And the reduction of period maximum needs
Amount, the period electric discharge number of degrees and the period charging number of degrees, can be as 1 effect of grid type power storage system and the valuating basis of lease.
In the aforementioned embodiment, since the charge power of control device control grid type power storage system 1 is with discharge power
Command value, the charge power and discharge power that control device is recorded are in real-world operation, the drop of possible having time, command value
Difference or other possible causes, cause to cut down requirement during record, the electric discharge number of degrees and period period charges the number of degrees and reality
Value is different.
Therefore, Fig. 9 is please referred to, Fig. 9 is the function according to the grid type power storage system depicted in another embodiment of the present invention
Block diagram, as shown in the figure, lease service pricing system 6 has the first ammeter 60,62 and second ammeter 64 of control device.First electricity
Table 60 is set in load demand measurement point, measures the power demand quantity with electric loading 3.Second ammeter 64 is electrically connected grid type storage
Between electric system 1 and power line, power line, which is electrically connected, to be used between electric loading 3 and mains system 4, and also valuating in lease service is
Between first ammeter of system 6 and mains system 4, directly to measure the charge power of grid type power storage system 1 and discharge power,
So that control device 62 is more accurate according to the power storage system operating statistical data that the second ammeter 64 is recorded.
Second ammeter 64 has the output electricity consumption number of degrees and the accumulative electricity consumption number of degrees accumulating function of input, defeated during one section of valuation
Go out the electric discharge number of degrees during the accumulative electricity consumption number of degrees are equal to, the input during one section of valuation adds up to charge during the electricity consumption number of degrees are equal to
The number of degrees.
Please with reference to Fig. 9 to Figure 11, Figure 10 is the function according to the control device depicted in another embodiment of the present invention
Block diagram, Figure 11 are the control logic figures according to the control device depicted in another embodiment of the present invention.As shown in the figure, control dress
Putting 62 has communication interface 621, processing unit 622 and storage unit 623.Communication interface 621 is electrically connected the first ammeter 60, the
Two ammeters 64 and grid type power storage system 1.In step s 701, processing unit 622 reads the first ammeter by communication interface 621
60 measure the electric power with electric loading 3.Electric power of the processing unit 622 according to reading in step S703 calculates electricity consumption
Load 3 obtains the power demand quantity with electric loading 3, and in step S705, place in the average value of a period of time section electric power
The power demand quantity of 622 storage of unit electric loading 3 is managed in storage unit 623.In step S707, processing unit 622 judges to use
Whether the power demand quantity of electric loading 3 is more than electric discharge setting value.In step S709, put when being more than with the power demand quantity of electric loading 3
During electric setting value, processing unit 622 outputs control signals to grid type power storage system 1 by communication interface 621, controls grid type
Power storage system 1 starts to discharge with discharge power.Discharge power is power demand quantity and the difference for setting value of discharging.In step S711
In, processing unit 622 reads the discharge power that the second ammeter 64 measures grid type power storage system 1 by communication interface 621, and
In step S713, the value of discharge power is stored.
In step S715, when with the power demand quantity of electric loading 3 no more than electric discharge setting value, processing unit 622 judges
Whether it is less than charging setting value with the power demand quantity of electric loading 3.In step S717, it is less than when with the power demand quantity of electric loading 3
During the setting value that charges, processing unit 622 outputs control signals to grid type power storage system 1 by communication interface 621, and control is grid-connected
Type power storage system 1 is started to charge up with charge power.Charge power is discharge setting value and the difference of power demand quantity.In step S719
In, processing unit 622 reads the charge power that the second ammeter 64 measures grid type power storage system 1 by communication interface 621, and
In step S7217, processing unit 622 stores the value of charge power in storage unit 623.When with the power demand quantity of electric loading 3 not
More than electric discharge setting value and not less than charging setting value when, that is, between electric discharge setting value and charging setting value between when, processing
Unit 622 outputs control signals to grid type power storage system 1 by communication interface 621, and control grid type power storage system 1 does not charge
Also it does not discharge.
In practice, since grid type power storage system 1 has frequency converter and battery module.Battery module output power should be big
In or equal to power converter output, and every cell output is limited in battery module, so the change of certain output power
Frequency device must arrange in pairs or groups certain amount battery, and system could work normally.It is identical for output power demand, it is more using the number of degrees
Occasion must then increase more number of batteries.If grid type power storage system 1 is only according to frequency converter peak power output and largest battery
Capacity charge collection, then to the number of degrees is used to lack person's unfairness, and the maximum electricity cut down requirement and paid of different users same period
Pond cost is different, it is therefore necessary to different expenses standards is drawn up to different users, will complicate expenses standard.
To make expenses standard rationally with simplification, 1 expenses standard of grid type power storage system can be divided into three kinds towards consideration.First
The angle according to equipment supplier is planted, to design expenses standard, that is, lease service pricing system is big according to frequency inverter capacity is rented
Small how much to valuate respectively with number of batteries, frequency inverter capacity is then charged greatly higher, and number of batteries is at most charged more.Such as frequency conversion
Device rent is $ 300/kW, and battery rent is $ 20/kWh, if renting frequency converter 50kW and battery 1,000kWh, then the charge per month
50kW* $ 300/kW+1,000kWh* $ 20/kWh=$ 35,000.
Second of angle be really benefited according to user, to design expenses standard, such expenses standard is classified into two, one
Take for requirement reduction, cut down requirement (kW) according to period maximum and valuate, another is battery usage charges, is counted according to the electric discharge number of degrees (kWh)
Valency.Period cuts down requirement, and then requirement reduction takes height greatly, and the electric discharge number of degrees at most battery usage charges are high.Lease service pricing system calculates
Grid type power storage system leases the mode of 2 value of leass, such as it is $ 300/kW, equipment handover charge $ that period, which cuts down maximum demand,
20/kWh.Reduction maximum demand during valuation is 50kW and battery discharge 1,000kWh, then charge per month 50kW* $ 300/
KW+1,000kWh* $ 20/kWh=$ 35,000.
The third angle be benefited simultaneously according to equipment supplier and user, to design expenses standard, such expenses standard will
It is divided into two, one is equipment handover charge, another is battery usage charges.Lease service pricing system is big according to frequency inverter capacity
Electric discharge of the small and period number of degrees calculate the value of leass of grid type power storage system 1.
In summary described, the embodiment of the present invention provides charge/discharge control method and the lease of a kind of grid type power storage system
Service pricing system.It is measured by the first ammeter of setting in grid type power storage system and with the electricity consumption load demand between electric loading
Point uses complete presentation electricity consumption load electric behaviour in service, solves the existing alternating current ammeter used and is adding in grid type storing up electricity system
The problem of system is supplied electricity to together with mains system with the electricity usage situation true with electric loading that after electric loading, can not be presented.
Lease service pricing system is maximum during further having recorded to cut down requirement, period charge volume and period discharge capacity, makees according to this
The foundation of requirement is cut down for grid type power storage system, and further calculating the value of leass of grid type power storage system.
Claims (22)
1. a kind of charge/discharge control method of grid type power storage system, which is characterized in that including：
One is measured with a power demand quantity of electric loading, measure position be a grid type power storage system and this between electric loading；
Compare the power demand quantity and a setting range of using electric loading, which includes an electric discharge setting value and a charging
Setting value, the electric discharge setting value start the setting value of electric discharge for the grid type power storage system, which is the grid type
The setting value that power storage system starts to charge up, and less than or equal to the electric discharge setting value；
When the power demand quantity with electric loading is more than the setting range, which starts to discharge electricity, should
One discharge power of grid type power storage system is the power demand quantity and the difference of the electric discharge setting value；
When this is located at the setting range with the power demand quantity of electric loading, which does not discharge and does not store electricity
Amount；And
When the power demand quantity with electric loading is less than the setting range, which starts to store electricity, should
One charge power of grid type power storage system is the electric discharge setting value and the difference of the power demand quantity.
2. the charge/discharge control method of grid type power storage system as described in claim 1, the wherein electricity consumption for using electric loading
Requirement is the average power content of a time interval or the rolling average performance number of the time interval.
3. the charge/discharge control method of grid type power storage system as described in claim 1, in further including during one charging of record
This uses discharge power and the charge power of the power demand quantity of electric loading, the grid type power storage system, generates the meter according to this
Power storage system operating statistical data during taking.
4. storing up electricity during the charge/discharge control method of grid type power storage system as claimed in claim 3, the wherein charging
Maximum cuts down requirement during including one in system operating statistical data, the use during maximum is cut down during requirement is the charging during this period
The highest of the electric loading power demand quantity subtracts the maximum demand of an alternating current ammeter.
5. storing up electricity during the charge/discharge control method of grid type power storage system as claimed in claim 3, the wherein charging
Maximum cuts down requirement during including one in system operating statistical data, the use during maximum is cut down during requirement is the charging during this period
The highest of the electric loading power demand quantity subtracts the maximum demand of an alternating current electricity charge list.
6. storing up electricity during the charge/discharge control method of grid type power storage system as claimed in claim 5, the wherein charging
In system operating statistical data, the summation of discharge power divided by the number of discharge power storage per hour is a phase during the charging
Between discharge the number of degrees, charging degree during the summation of charge power divided by the number of charge power storage per hour is one during the charging
Number.
7. the charge/discharge control method of grid type power storage system as claimed in claim 6 is further included and is cut down with maximum during this period
Requirement, during this period the electric discharge number of degrees, the charging number of degrees, frequency inverter capacity and battery capacity calculate the grid type power storage system during this period
Value of leass.
8. the charge/discharge control method of grid type power storage system as claimed in claim 6, further includes with frequency inverter capacity and electricity
Tankage calculates the value of leass of the grid type power storage system.
9. the charge/discharge control method of grid type power storage system as claimed in claim 6 is further included and is cut down with maximum during this period
Requirement and the number of degrees that discharge during this period calculate the value of leass of the grid type power storage system.
10. the charge/discharge control method of grid type power storage system as claimed in claim 6 is further included with frequency inverter capacity and is somebody's turn to do
The period electric discharge number of degrees calculate the value of leass of the grid type power storage system.
11. the charge/discharge control method of grid type power storage system as claimed in claim 6, further includes and measures this simultaneously with an ammeter
The charge power, the during this period discharge power, the electric discharge number of degrees and the charging number of degrees, ammeter during this period of net type power storage system are electrical
Be connected between the grid type power storage system and a power line, the power line be electrically connected this with electric loading and a mains system it
Between.
12. a kind of lease service pricing system of grid type power storage system, which is characterized in that including：
One first ammeter measures a power demand quantity with electric loading, measures position and is a grid type power storage system and the use
Between electric loading；And
One control device is electrically connected first ammeter and the grid type power storage system, and comparing the electricity consumption for using electric loading needs
Amount and a setting range, the setting range include an electric discharge setting value and a charging setting value, and the electric discharge setting value is grid-connected for this
Type power storage system starts the setting value of electric discharge, which is the setting value that the grid type power storage system starts to charge up, and
Less than or equal to the electric discharge setting value, when the power demand quantity with electric loading is more than the setting range, the control device control
Make the grid type power storage system start discharge electric energy, and control the grid type power storage system a discharge power be the power demand quantity
With the difference of the electric discharge setting value, when this is located at the setting range with the power demand quantity of electric loading, control device control
The grid type power storage system does not discharge and does not store electricity, when the power demand quantity with electric loading is less than the setting range,
The control device controls the grid type power storage system to start to store electric energy, and control a charge power of the grid type power storage system
For the electric discharge setting value and the difference of the power demand quantity.
13. the lease service pricing system of grid type power storage system as claimed in claim 12, wherein being somebody's turn to do with electric loading
Power demand quantity is the average power content of a time interval or the rolling average performance number of the time interval.
14. the lease service pricing system of grid type power storage system as claimed in claim 12, the wherein control device are also remembered
The discharge power and the charging work(of the power demand quantity of electric loading, the grid type power storage system of this in during recording a charging
Rate generates the power storage system operating statistical data during the charging according to this.
15. being somebody's turn to do during the lease service pricing system of grid type power storage system as claimed in claim 14, the wherein charging
Maximum cuts down requirement during including one in power storage system operating statistical data, during maximum is cut down during requirement is the charging during this period
Highest this maximum demand of an alternating current ammeter is subtracted with the power demand quantity of electric loading.
16. being somebody's turn to do during the lease service pricing system of grid type power storage system as claimed in claim 14, the wherein charging
Maximum cuts down requirement during including one in power storage system operating statistical data, during maximum is cut down during requirement is the charging during this period
Highest this maximum demand of an alternating current electricity charge list is subtracted with the power demand quantity of electric loading.
17. being somebody's turn to do during the lease service pricing system of grid type power storage system as claimed in claim 16, the wherein charging
In power storage system operating statistical data, the summation of discharge power divided by the number of discharge power storage per hour is during the charging
The electric discharge number of degrees during one, the summation of charge power divided by the number of charge power storage per hour is filled during being one during the charging
Electric degree number.
18. the lease service pricing system of grid type power storage system as claimed in claim 17, wherein the control device is with this
It is grid-connected that period maximum cuts down requirement, this period the discharges number of degrees, this period charging number of degrees, frequency inverter capacity and battery capacity calculate this
The value of leass of type power storage system.
19. the lease service pricing system of grid type power storage system as claimed in claim 17, the wherein control device are to become
Frequency device capacity and battery capacity calculate the value of leass of the grid type power storage system lease.
20. the lease service pricing system of grid type power storage system as claimed in claim 17, wherein the control device is with this
Period maximum cuts down requirement and the electric discharge number of degrees calculate the value of leass of the grid type power storage system during this period.
21. the lease service pricing system of grid type power storage system as claimed in claim 17, the wherein control device are to become
Frequency device capacity and the number of degrees that discharge during this period calculate the value of leass of the grid type power storage system.
It, should 22. the lease service pricing system of grid type power storage system as claimed in claim 17 further includes one second ammeter
Second ammeter is electrically connected between the grid type power storage system and a power line, and the power line is electrically connected this and uses electric loading
Between a mains system, which measures charge power, the discharge power, this period of the grid type power storage system
Discharge the number of degrees and the charging number of degrees during this period.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105143436A TWI614969B (en) | 2016-12-27 | 2016-12-27 | Charge and discharge control method and lease service pricing system for grid-connected energy storing system |
| TW105143436 | 2016-12-27 |
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| CN108242820A true CN108242820A (en) | 2018-07-03 |
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| CN201710068613.2A Pending CN108242820A (en) | 2016-12-27 | 2017-02-08 | Charge-discharge control method of grid-connected electricity storage system and rental service pricing system |
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| TW (1) | TWI614969B (en) |
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| CN111435231A (en) * | 2019-01-15 | 2020-07-21 | 系统电子工业股份有限公司 | Intelligent electricity-saving management and control system and method |
| CN111695817A (en) * | 2020-06-15 | 2020-09-22 | 合肥阳光新能源科技有限公司 | Demand reduction amount calculation method, device and system |
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Also Published As
| Publication number | Publication date |
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| TWI614969B (en) | 2018-02-11 |
| TW201824698A (en) | 2018-07-01 |
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