CN106849142A - User's sidelight stores up integral system demand charge capacity configuration software algorithm - Google Patents
User's sidelight stores up integral system demand charge capacity configuration software algorithm Download PDFInfo
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- CN106849142A CN106849142A CN201710031813.0A CN201710031813A CN106849142A CN 106849142 A CN106849142 A CN 106849142A CN 201710031813 A CN201710031813 A CN 201710031813A CN 106849142 A CN106849142 A CN 106849142A
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- 238000004146 energy storage Methods 0.000 claims abstract description 252
- 238000005457 optimization Methods 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 80
- 230000007812 deficiency Effects 0.000 claims description 18
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- H02J3/28—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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- H02J3/383—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Present invention relates to user's sidelight storage integral system demand charge capacity configuration software algorithm, it is divided into following steps：1) software input, obtains user's year timesharing load curve as the input for calculating；2) according to the annual timesharing load curve of user, distributed rationally by the photovoltaic capacity under locally dissolving and calculate optimal photovoltaic configuration capacity and cost of investment, the charge and discharge time requirement according to the information such as battery types, DOD depth of discharges, the battery efficiency for being equipped with energy-storage system and peak load shifting calculates optimum capacity configuration and the cost of investment of battery；3) demand charge optimization is provided the user：If user pays capacity payment again by demand charge, and daytime is bigger than evening power consumption, and maximum demand time of origin was shorter, less than 1 hour, it is contemplated that by energy storage reduction maximum demand reduction demand charge.0 when energy storage uses evening paddy:00‑8:00 charges, and is discharged when maximum demand occurs.Discharge power can be by PCivil power＞ PTarget powerSituation is discharged, PCivil power=Ptn* stop electric discharge when 40%.Monthly income：Cin=(PSetting power‑Ptn* 40%) * 40 yuan/months, PCivil power=PLoad‑PPhotovoltaic。
Description
Technical field
The invention belongs to power generation applications software field, it is related to user's sidelight to store up integral system demand charge capacity configuration soft
Part algorithm.
Background technology
With society fast-developing new energy in energy resource system proportion it is increasing, miniaturization, modularization, divide
Dissipate formula, be arranged near user as the compact electrical generating systems of customer power supply are popularizing installation, distributed generation technology by with
Bulk power grid connection provides the user stabilization, the supply of reliable electric energy, and the energy off-grid operation in bulk power grid failure, it is ensured that supply
The continuity and the quality of power supply high of electricity.It is the preferable solution of energy scarcity and environmental pollution.
The regenerative resources such as solar energy power generating with its it is inexhaustible the characteristics of, receive extensive concern.
The shared ratio in microgrid of photovoltaic generating system is also more come also high.But there is randomness and fluctuation in independent photovoltaic generating system
The shortcomings of property, when its permeability is larger, the safe and stable operation of micro-capacitance sensor will be influenceed.In order to solve photovoltaic generation and energy storage
The problems such as power-balance, stability and the quality of power supply in the micro-grid system of composition, it is necessary to be equipped with power output more stable
Energy-storage system, and according to predetermined control strategy, realize the equilibrium,transient of micro-grid system internal energy, realize photovoltaic energy storage
The stable operation of micro-capacitance sensor.
Energy storage can smooth exerting oneself for photovoltaic generation as a kind of energy accumulating device, and appropriate stored energy capacitance can also rise
To the effect of peak load shifting, especially in Peak-valley TOU power price, electric energy can be made full use of, moreover it is possible to for user saves energy charge
With.
Conventional photovoltaic generation simulation software, be using local photometric data, installation site according to photovoltaic generating system,
Mounting means etc. calculates the generated energy of photovoltaic generating system, and economy is calculated according to local subsidy policy, instructs user's light
The selection and installation of photovoltaic generating system.
The content of the invention
The present invention provides user's sidelight storage integral system demand charge capacity configuration software algorithm.For user selects to install
Light storage integral system provides capacity configuration and instructs and the measuring and calculating of expected economy.Characterisitic parameter by being input into user of the invention
With with electrical feature, the capacity of installed capacity and the energy-storage system configuration of best configuration photovoltaic generation is calculated by software, then,
The quantity of electricity payment calculates economy before and after contrast is installed, and instructs photovoltaic that user installation is appropriate and reserves most to pass through to reach
The system configuration of Ji.
For problem and defect that existing simulation software algorithm is present, the present invention is proposed：
Power load situation according to user, determines the electricity consumption paid mode, gather user of demand charge, electrical capacity charge
Information (such as power, electricity), determines voltage class, peak, flat, the paddy electricity valency of user, and daytime and evening electrical characteristics, maximum
Requirement time of occurrence and duration, few to evening electricity consumption according to the data results of collection, daytime uses the user of point multiple spot
Carry out light storage capacity optimization.
User's sidelight stores up integral system demand charge capacity configuration software algorithm, is divided into following steps：1) software input,
User's year timesharing load curve is obtained as the input for calculating；
2) according to the annual timesharing load curve of user, distributed rationally by the photovoltaic capacity under locally dissolving and calculated most preferably
Photovoltaic configuration capacity and cost of investment, according to information such as battery types, DOD depth of discharges, the battery efficiencies for being equipped with energy-storage system
With optimum capacity configuration and the cost of investment that the charge and discharge time requirement of peak load shifting calculates battery；
3) demand charge optimization is provided the user：
If user pays capacity payment again by demand charge, and daytime is bigger than evening power consumption, maximum demand time of origin compared with
It is short, less than 1 hour, it is contemplated that by energy storage reduction maximum demand reduction demand charge.0 when energy storage uses evening paddy:00-8:00
Charge, discharged when maximum demand occurs.Discharge power can be by PCivil power＞ PTarget powerSituation is discharged, PCivil power=Ptn* stop putting when 40%
Electricity.Monthly income：Cin=(PSetting power-Ptn* 40%) * 40 yuan/months, PCivil power=PLoad-PPhotovoltaic。
Further, step 3) capacity optimisation strategy is changed to result output.
1) " electrical capacity charge+degree electricity electricity charge " class industrial user electricity optimization,
(under conditions of ensureing civil power peak value no more than transformer capacity, make full use of stored energy capacitance, paddy fill peak put)
0—8h,If{CStorage<CAlways,(CAlways-CStorage)/8,0 } if energy storage electricity is discontented, at the uniform velocity it is charged to full
8—12h,If{PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<PStorage max,PIt is negative-PLight,PStorage max),0),if(CStorage<2000,
if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge customer charge when being more than or equal to photovoltaic generation power, and load and photovoltaic can be met
Power difference, then difference completely by energy storage provide, it is impossible to when meeting energy storage by peak power discharge, in addition deficiency with civil power 2.
If energy storage is empty, load is all provided with photovoltaic power difference by civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, earning photovoltaic the online electricity charge 12-17h, If { PIt is negative-PLight>=0,0, if (CStorage<2000,if(PIt is negative-PLight>-
PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) when customer charge is more than or equal to photovoltaic generation power, without energy storage, supplied with civil power.
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
17—21h,If{PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<PStorage max,PIt is negative-PLight,PStorage max),0),if(CStorage<2000,
if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge customer charge when being more than or equal to photovoltaic generation power, and load and photovoltaic can be met
Power difference, then difference completely by energy storage provide, it is impossible to when meeting energy storage by peak power discharge, in addition deficiency with civil power 2.
If energy storage is empty, load is all provided with photovoltaic power difference by civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
21—24h,If{PIt is negative-PLight>=0,0, if (CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) when customer charge is more than or equal to photovoltaic generation power, without energy storage, supplied with civil power
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
2) " demand charge+degree electricity electricity charge " class industrial user electricity optimization
(under conditions of ensureing civil power peak value no more than limit value, utilization stored energy capacitance as much as possible, paddy is filled peak and puts)
0-8h, If { PIt is negative-PLight>=PCity max, yesterday,if(CStorage>0,PIt is negative-PLight-PCity max, yesterday,0),if(CStorage<2000,PIt is negative-PLight-
PCity max, yesterday,0)}
(1) if customer charge more than photovoltaic and yesterday maximum city's electric power sum when 1. energy storage can discharge, load and
If other both difference are provided by energy storage, and 2. energy storage is empty, load is all provided with both difference by civil power, demand power
It is also possible to therefore raise
(2) if 1. energy storage is chargeable during maximum less than the photovoltaic and yesterday city's electric power sum of customer charge, according to
Peak power civil power, if meeting outside load needs, 2. energy storage has been expired to energy storage charging, only powers to the load for needing
8-12h, If { PIt is negative-PLight>PCity, peak clipping, if (CStorage>0,PIt is negative-PLight-PCity, peak clipping,0),if{PIt is negative-PLight>=0,0, if (CStorage<
2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0))}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
12-17h, If { PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<=PCity max, yesterday,0,PIt is negative-PLight-PCity max, yesterday),0),if
(CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
17-21h, If { PIt is negative-PLight>PCity, peak clipping, if (CStorage>0,PIt is negative-PLight-PCity, peak clipping,0),if{PIt is negative-PLight>=0,0, if (CStorage<
2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0))}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
21-24h, If { PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<=PCity max, yesterday,0,PIt is negative-PLight-PCity max, yesterday),0),if
(CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
Brief description of the drawings
Day accumulative electric cost contrast before and after the optimization of Fig. 1 capacity.
Electric cost contrast per hour before and after the optimization of Fig. 2 capacity.
Day accumulative electric cost contrast before and after the optimization of Fig. 3 requirements.
Day accumulative electric cost contrast before and after the optimization of Fig. 4 requirements.
Specific implementation method
User's sidelight stores up integral system demand charge capacity configuration software algorithm, is divided into following steps：1) software input,
User's year timesharing load curve is obtained as the input for calculating；
2) according to the annual timesharing load curve of user, distributed rationally by the photovoltaic capacity under locally dissolving and calculated most preferably
Photovoltaic configuration capacity and cost of investment, according to information such as battery types, DOD depth of discharges, the battery efficiencies for being equipped with energy-storage system
With optimum capacity configuration and the cost of investment that the charge and discharge time requirement of peak load shifting calculates battery；
3) demand charge optimization is provided the user：
If user pays capacity payment again by demand charge, and daytime is bigger than evening power consumption, maximum demand time of origin compared with
It is short, less than 1 hour, it is contemplated that by energy storage reduction maximum demand reduction demand charge.0 when energy storage uses evening paddy:00-8:00
Charge, discharged when maximum demand occurs.Discharge power can be by PCivil power＞ PTarget powerSituation is discharged, PCivil power=Ptn* stop putting when 40%
Electricity.Monthly income：Cin=(PSetting power-Ptn* 40%) * 40 yuan/months, PCivil power=PLoad-PPhotovoltaic。
Capacity optimisation strategy is exported with result
1) " electrical capacity charge+degree electricity electricity charge " class industrial user electricity optimization
(under conditions of ensureing civil power peak value no more than transformer capacity, make full use of stored energy capacitance, paddy fill peak put)
0—8h,If{CStorage<CAlways,(CAlways-CStorage)/8,0 } if energy storage electricity is discontented, at the uniform velocity it is charged to full
8—12h,If{PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<PStorage max,PIt is negative-PLight,PStorage max),0),if(CStorage<2000,
if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge customer charge when being more than or equal to photovoltaic generation power, and load and photovoltaic can be met
Power difference, then difference completely by energy storage provide, it is impossible to when meeting energy storage by peak power discharge, in addition deficiency with civil power 2.
If energy storage is empty, load is all provided with photovoltaic power difference by civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
12—17h,If{PIt is negative-PLight>=0,0, if (CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) when customer charge is more than or equal to photovoltaic generation power, without energy storage, supplied with civil power.
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
17—21h,If{PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<PStorage max,PIt is negative-PLight,PStorage max),0),if(CStorage<2000,
if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge customer charge when being more than or equal to photovoltaic generation power, and load and photovoltaic can be met
Power difference, then difference completely by energy storage provide, it is impossible to when meeting energy storage by peak power discharge, in addition deficiency with civil power 2.
If energy storage is empty, load is all provided with photovoltaic power difference by civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
21—24h,If{PIt is negative-PLight>=0,0, if (CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) when customer charge is more than or equal to photovoltaic generation power, without energy storage, supplied with civil power
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
Before and after capacity optimization before and after day accumulative electric cost contrast and capacity optimization per hour electric cost to such as Fig. 1,2
It is shown.
2) " demand charge+degree electricity electricity charge " class industrial user electricity optimization
(under conditions of ensureing civil power peak value no more than limit value, utilization stored energy capacitance as much as possible, paddy is filled peak and puts)
0-8h, If { PIt is negative-PLight>=PCity max, yesterday,if(CStorage>0,PIt is negative-PLight-PCity max, yesterday,0),if(CStorage<2000,PIt is negative-PLight-
PCity max, yesterday,0)}
(1) if customer charge more than photovoltaic and yesterday maximum city's electric power sum when 1. energy storage can discharge, load and
If other both difference are provided by energy storage, and 2. energy storage is empty, load is all provided with both difference by civil power, demand power
It is also possible to therefore raise
(2) if 1. energy storage is chargeable during maximum less than the photovoltaic and yesterday city's electric power sum of customer charge, according to
Peak power civil power, if meeting outside load needs, 2. energy storage has been expired to energy storage charging, only powers to the load for needing
8-12h, If { PIt is negative-PLight>PCity, peak clipping, if (CStorage>0,PIt is negative-PLight-PCity, peak clipping,0),if{PIt is negative-PLight>=0,0, if (CStorage<
2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0))}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
12-17h, If { PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<=PCity max, yesterday,0,PIt is negative-PLight-PCity max, yesterday),0),if
(CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge
17-21h, If { PIt is negative-PLight>PCity, peak clipping, if (CStorage>0,PIt is negative-PLight-PCity, peak clipping,0),if{PIt is negative-PLight>=0,0, if (CStorage<
2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0))}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
21-24h, If { PIt is negative-PLight>=0, if (CStorage>0,if(PIt is negative-PLight<=PCity max, yesterday,0,PIt is negative-PLight-PCity max, yesterday),0),if
(CStorage<2000,if(PIt is negative-PLight>-PStorage max,PIt is negative-PLight,-PStorage max),0)}
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and load can be met
Both difference with other, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency in addition
With civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power also has
May therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping controlled during less than photovoltaic and peak valency is highly
Three's difference is all provided by civil power during sum
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power is small with load difference
In energy storage maximum charge power, then difference is fully absorbed by energy storage, and energy storage is charged by peak power during more than energy storage peak power,
Other input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expired by energy storage, and photovoltaic power is more than
Loaded portion is directly surfed the Net, the earning photovoltaic online electricity charge.
Add up day before and after electric cost contrast and requirement optimization to add up electric cost day to such as Fig. 3,4 before and after requirement optimization
It is shown.
Claims (2)
1. user's sidelight stores up integral system demand charge capacity configuration software algorithm, it is characterized by, it is divided into following steps：1) it is soft
Part is input into, and obtains user's year timesharing load curve as the input for calculating；
2) according to the annual timesharing load curve of user, distributed rationally by the photovoltaic capacity under locally dissolving and calculate optimal photovoltaic
Configuration capacity and cost of investment, according to the information such as battery types, DOD depth of discharges, battery efficiency for being equipped with energy-storage system and cut
The charge and discharge time requirement of peak load calculates optimum capacity configuration and the cost of investment of battery；
3) demand charge optimization is provided the user：
If user pays capacity payment again by demand charge, and daytime is bigger than evening power consumption, and maximum demand time of origin is shorter, low
In 1 hour, it is contemplated that by energy storage reduction maximum demand reduction demand charge.0 when energy storage uses evening paddy:00-8:00 charges,
Discharged when maximum demand occurs.Discharge power can be by PCivil power＞ PTarget powerSituation is discharged, PCivil power=Ptn* stop electric discharge when 40%.The moon is received
Enter：Cin=(PSetting power-Ptn* 40%) * 40 yuan/months, PCivil power=PLoad-PPhotovoltaic。
2. user's sidelight as claimed in claim 1 stores up integral system demand charge capacity configuration software algorithm, it is characterized by,
Step 3) capacity optimisation strategy is changed to result output：
1) " electrical capacity charge+degree electricity electricity charge " class industrial user electricity optimization, is ensureing civil power peak value no more than transformer capacity
Under the conditions of, making full use of stored energy capacitance, paddy is filled peak and puts；
0-8h, if energy storage electricity is discontented, is at the uniform velocity charged to full；
8—12h,
(1) if 1. energy storage can discharge customer charge when being more than or equal to photovoltaic generation power, and load and photovoltaic power can be met
Difference, then difference completely by energy storage provide, it is impossible to when meeting energy storage by peak power discharge, if in addition deficiency with civil power 2.
Energy storage is empty, and load is all provided with photovoltaic power difference by civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic online the electricity charge (0.378+0.42) unit/kWh；If 2. energy storage has been expired, photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
12—17h,
(1) when customer charge is more than or equal to photovoltaic generation power, without energy storage, supplied with civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
17—21h,
(1) if 1. energy storage can discharge customer charge when being more than or equal to photovoltaic generation power, and load and photovoltaic power can be met
Difference, then difference completely by energy storage provide, it is impossible to when meeting energy storage by peak power discharge, if in addition deficiency with civil power 2.
Energy storage is empty, and load is all provided with photovoltaic power difference by civil power；
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
21—24h,
(1) when customer charge is more than or equal to photovoltaic generation power, without energy storage, supplied with civil power
(2) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
2) " demand charge+degree electricity electricity charge " class industrial user electricity optimization, is ensureing condition of the civil power peak value no more than limit value
Under, utilization stored energy capacitance as much as possible, paddy is filled peak and puts；
0-8h, (1) if 1. energy storage can discharge during maximum more than the photovoltaic and yesterday city's electric power sum of customer charge, load
If 2. energy storage is empty by energy storage offer for both difference with other, load is all provided with both difference by civil power, requirement work(
Rate is also possible to therefore raise；
(2) if 1. energy storage is chargeable during maximum less than the photovoltaic and yesterday city's electric power sum of customer charge, according to maximum
Power civil power, if meeting outside load needs, 2. energy storage has been expired to energy storage charging, only powers to the load for needing；
8-12h,
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and can meet load and its
The difference of both he, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency city in addition
Electricity, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power is also possible to
Therefore raise；
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping height sum controlled during less than photovoltaic and peak valency
Shi Sanzhe difference is all provided by civil power；
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
12-17h,
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and can meet load and its
The difference of both he, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency city in addition
Electricity, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power is also possible to
Therefore raise；
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping height sum controlled during less than photovoltaic and peak valency
Shi Sanzhe difference is all provided by civil power；
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
17-21h,
(1) if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and can meet load and its
The difference of both he, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, deficiency city in addition
Electricity, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, and demand power is also possible to
Therefore raise
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping height sum controlled during less than photovoltaic and peak valency
Shi Sanzhe difference is all provided by civil power；
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge；
21-24h, (1) are if 1. energy storage can discharge during electric more than the photovoltaic and peak peak clipping height sum of customer charge, and can meet
Load and other both difference, then difference is completely by energy storage offer, it is impossible to which energy storage is discharged by peak power when meeting, in addition
Deficiency civil power, if demand power is raised, and 2. energy storage is empty, load is all provided with both difference by civil power, demand power
It is also possible to therefore raise；
(2) customer charge is more than or equal to photovoltaic generation power, but the civil power peak clipping height sum controlled during less than photovoltaic and peak valency
Shi Sanzhe difference is all provided by civil power；
(3) if 1. energy storage is chargeable when being less than photovoltaic generation power for customer charge, and photovoltaic power and load difference are less than storage
Can maximum charge power, then difference fully absorbed by energy storage, during more than energy storage peak power energy storage by peak power charge, in addition
Input power network, earning photovoltaic surfs the Net the electricity charge (0.378+0.42) if unit/kWh 2. expire by energy storage, and photovoltaic power is more than load
Part is directly surfed the Net, the earning photovoltaic online electricity charge.
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| CN106786700A (en) * | 2017-01-17 | 2017-05-31 | 无锡协鑫分布式能源开发有限公司 | User's sidelight stores up integral system off-grid operation capacity configuration software algorithm |
| CN108233422A (en) * | 2018-02-09 | 2018-06-29 | 大工（青岛）新能源材料技术研究院有限公司 | A kind of light storage micro-grid operational control method based on PREDICTIVE CONTROL |
| CN108767896A (en) * | 2018-06-11 | 2018-11-06 | 中国科学院电工研究所 | A kind of control method for coordinating of light storage charging system |
| CN110601334A (en) * | 2019-08-07 | 2019-12-20 | 许继电源有限公司 | Charging station and energy dispatching management method thereof |
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| CN111913110A (en) * | 2019-05-10 | 2020-11-10 | 维谛技术有限公司 | Commercial power battery configuration evaluation method and system |
| CN113158566A (en) * | 2021-04-21 | 2021-07-23 | 内蒙古电力（集团）有限责任公司乌兰察布电业局 | User ordered electricity utilization control method, system and medium based on demand side |
| CN113572182A (en) * | 2021-07-06 | 2021-10-29 | 水发能源集团有限公司 | Method for measuring and calculating capacity of storage battery pack of photovoltaic building energy storage system |
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| CN106786700A (en) * | 2017-01-17 | 2017-05-31 | 无锡协鑫分布式能源开发有限公司 | User's sidelight stores up integral system off-grid operation capacity configuration software algorithm |
| CN107910882B (en) * | 2017-11-16 | 2020-01-03 | 广州供电局有限公司 | Distributed energy storage operation mode optimization design method and system |
| CN108233422B (en) * | 2018-02-09 | 2021-07-02 | 大工（青岛）新能源材料技术研究院有限公司 | Light storage micro-grid operation control method based on predictive control |
| CN108233422A (en) * | 2018-02-09 | 2018-06-29 | 大工（青岛）新能源材料技术研究院有限公司 | A kind of light storage micro-grid operational control method based on PREDICTIVE CONTROL |
| CN108767896A (en) * | 2018-06-11 | 2018-11-06 | 中国科学院电工研究所 | A kind of control method for coordinating of light storage charging system |
| CN111913110B (en) * | 2019-05-10 | 2023-03-14 | 维谛技术有限公司 | Commercial power battery configuration evaluation method and system |
| CN111913110A (en) * | 2019-05-10 | 2020-11-10 | 维谛技术有限公司 | Commercial power battery configuration evaluation method and system |
| CN110601334A (en) * | 2019-08-07 | 2019-12-20 | 许继电源有限公司 | Charging station and energy dispatching management method thereof |
| CN110601334B (en) * | 2019-08-07 | 2021-11-05 | 许继电源有限公司 | Charging station and energy dispatching management method thereof |
| CN110601243B (en) * | 2019-10-21 | 2023-02-10 | 阳光新能源开发股份有限公司 | Energy storage system and peak clipping, valley filling and demand management cooperative control method thereof |
| CN110601243A (en) * | 2019-10-21 | 2019-12-20 | 合肥阳光新能源科技有限公司 | Energy storage system and peak clipping, valley filling and demand management cooperative control method thereof |
| CN113158566A (en) * | 2021-04-21 | 2021-07-23 | 内蒙古电力（集团）有限责任公司乌兰察布电业局 | User ordered electricity utilization control method, system and medium based on demand side |
| CN113158566B (en) * | 2021-04-21 | 2023-08-15 | 内蒙古电力(集团)有限责任公司乌兰察布供电分公司 | User ordered power utilization control method, system and medium based on demand side |
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