CN106920177A - A kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other - Google Patents
A kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other Download PDFInfo
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- 230000000295 complement effect Effects 0.000 title claims abstract description 12
- 238000013486 operation strategy Methods 0.000 title claims abstract description 7
- 239000000446 fuel Substances 0.000 claims abstract description 28
- 238000012423 maintenance Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 30
- 238000004146 energy storage Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
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- 239000002028 Biomass Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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Abstract
Present invention relates to a kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other, it is characterized by：An economic goal is set up, selection makes the method for operation of overall cost minimization or maximum revenue, do not consider the influence such as to electric network performance, the influence non-Economy parameter to environment in object function；Economy optimal objective function, i.e. object function are set up for micro-energy resource system day operation expense of providing multiple forms of energy to complement each other is minimum, the day operation comprehensive cost of micro-energy resource system mainly includes 3 aspects of power expense and system operation maintenance cost that fuel cost is interacted with power network.
Description
Technical field
The invention belongs to Generation Control field, it is related to a kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other.
Background technology
With the energy reform deepen constantly, by distributed photovoltaic, wind-power electricity generation, miniature gas turbine, biomass power generation,
The clean energy resource such as solar energy optical-thermal and energy storage and renewable energy forms by different forms and administrative unit constitute it is miniature
Energy net is the developing direction of present energy technology.The light being made up of distributed photovoltaic and energy storage stores up integral system or by wind
The honourable storage system of electricity, photovoltaic and energy storage composition solves the problems, such as the local use of wind energy and luminous energy in Demand-side, is prevented effectively from
The generation of " abandon wind, abandon light " phenomenon, while in the case of Peak-valley TOU power price, being efficiently utilized by " peak load shifting "
Electric energy and reduce user degree electricity the electricity charge.Hot and cold, CCHP (Combined Cooling, Heating and Power,
CCHP) development and application of technology, have also preferably promoted the development of multiple-energy-source microgrid, gas turbine and lithium bromide chiller
Combination electric energy can not only be provided, moreover it is possible to heat energy and cold energy are provided the user by the cascade utilization of the energy, make " micro- electricity of narrow sense
Net " is developed into " micro- energy net " of broad sense.The energy resource structure and equipment coupled relation of micro- energy net of supply of cooling, heating and electrical powers are very
Complexity, conscientiously studies it and provides multiple forms of energy to complement each other with coupling mechanism for the Based Intelligent Control of micro- energy net and optimization operation with particularly significant
Practical significance.
At present, the research of micro-capacitance sensor has been achieved with certain progress, but is related to the research of micro- energy net of CCHP also less,
It is concentrated mainly on the aspects such as system model, operational efficiency and economy.By gas turbine, photovoltaic, breeze wind, storage
The multi-source complementation micro-energy resource system that the clean energy resourcies such as energy, earth source heat pump and renewable energy forms constitute collaboration optimization is got over
It is widely applied to get over.
Current research all concentrates on a certain one-sided of micro- energy net, fails to be analyzed from the operation of whole system and grinds
Study carefully.For problem above, herein with intelligent industrial garden by Natural Gas turbine, photovoltaic, wind-power electricity generation, ground source heat
Based on micro- energy net of the clean energy resourcies such as pump, energy storage and regenerative resource composition, comprehensive analysis is economically carried out.
The content of the invention
A kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other, initially sets up an economic goal, and selection makes overall cost
The method of operation of minimum or maximum revenue, the influence such as to electric network performance, the influence to environment are not considered in object function
Deng non-Economy parameter.
Secondly, it is micro-energy resource system day operation expense of providing multiple forms of energy to complement each other to set up economy optimal objective function, i.e. object function
Minimum (or day gross profit maximum, this is sentenced as a example by operating cost minimum), the day operation comprehensive cost of micro-energy resource system is mainly wrapped
Include 3 aspects of power expense and system operation maintenance cost that fuel cost is interacted with power network：
minKTotal=min (KFuel+KGrid+KMaintain) (1)
In formula：KTotalIt is the day operation comprehensive cost of micro-energy resource system；KFuelIt is fuel cost；KGridIt is to be interacted with power network
Power expense；KMaintainIt is system operation maintenance cost.
Wherein, the fuel cost function computing formula of micro- gas turbine and gas fired-boiler is：
In formula：fCHPIt is micro- gas turbine gas consumption flow function；PtFor micro- combustion turbine power is exported, unit is kW；Be by
When gas price, unit be $/(kWh)；It is the air consumption of gas fired-boiler t periods, unit is kWh；T is time period sequence number, unit
It is h.
Co-feeding system is with the electric energy switching cost function computing formula of power network：
In formula：Be by when electricity price；It is t periods micro- energy net and the electricity cross-over value of bulk power grid.
The operation expense function computing formula of micro-energy resource system is
In formula：I is the equipment sequence, p such as distributed energy, energy storage device, gas turbine, refrigeration machine in systemiRespectively to set
The operation expense of standby unit power,For each equipment runs power.
The constraints of the micro- energy net of supply of cooling, heating and electrical powers includes cold and hot power-balance, system electrical power according to the operation of system
The constraint such as balance and place capacity, equipment operation.
The unit power operation expense of micro-energy resource system is calculated according to formula (4), in system equipment determination, operation troop
In the case of stabilization, the operation expense of unit power is relatively-stationary.
The electric energy switching cost of co-feeding system and power network is calculated according to formula (3), for fixed electricity price garden by when electricity price
When fix, only switching cost need to be calculated according to realtime power, for the garden of Peak-valley TOU power price, according to day part by when
Electricity price and realtime power calculate electric energy switching cost.
The fuel cost of micro- gas turbine and gas fired-boiler, the degree electricity cost of conversion to day part are calculated according to formula (2).
The minimum method of operation of cost is chosen according to formula (1), because the major part of cost is that fuel cost and power network are handed over
Mutual power expense and system operation maintenance cost, because system operation maintenance cost is relatively fixed, mainly compares fuel cost
And the power expense interacted with power network, when the electric fuel cost of degree is less than the degree electricity cost interacted with power network, selection uses combustion gas wheel
Machine generates electricity, conversely, then selecting to be powered using power network, it is ensured that the use cost of electric energy is minimum.
Specific embodiment
A kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other, initially sets up an economic goal, and selection makes overall cost
The method of operation of minimum or maximum revenue, the influence such as to electric network performance, the influence to environment are not considered in object function
Deng non-Economy parameter.
Secondly, it is micro-energy resource system day operation expense of providing multiple forms of energy to complement each other to set up economy optimal objective function, i.e. object function
Minimum (or day gross profit maximum, this is sentenced as a example by operating cost minimum), the day operation comprehensive cost of micro-energy resource system is mainly wrapped
Include 3 aspects of power expense and system operation maintenance cost that fuel cost is interacted with power network：
minKTotal=min (KFuel+KGrid+KMaintain) (1)
In formula：KTotalIt is the day operation comprehensive cost of micro-energy resource system；KFuelIt is fuel cost；KGridIt is to be interacted with power network
Power expense；KMaintainIt is system operation maintenance cost.
Wherein, the fuel cost function computing formula of micro- gas turbine and gas fired-boiler is：
In formula：fCHPIt is micro- gas turbine gas consumption flow function；PtFor micro- combustion turbine power is exported, unit is kW；Be by
When gas price, unit be $/(kWh)；It is the air consumption of gas fired-boiler t periods, unit is kWh；T is time period sequence number, unit
It is h.
Co-feeding system is with the electric energy switching cost function computing formula of power network：
In formula：Be by when electricity price；It is t periods micro- energy net and the electricity cross-over value of bulk power grid.
The operation expense function computing formula of micro-energy resource system is
In formula：I is the equipment sequence, p such as distributed energy, energy storage device, gas turbine, refrigeration machine in systemiRespectively to set
The operation expense of standby unit power,For each equipment runs power.
The constraints of the micro- energy net of supply of cooling, heating and electrical powers includes cold and hot power-balance, system electrical power according to the operation of system
The constraint such as balance and place capacity, equipment operation.
The unit power operation expense of micro-energy resource system is calculated according to formula (4), in system equipment determination, operation troop
In the case of stabilization, the operation expense of unit power is relatively-stationary.
The electric energy switching cost of co-feeding system and power network is calculated according to formula (3), for fixed electricity price garden by when electricity price
When fix, only switching cost need to be calculated according to realtime power, for the garden of Peak-valley TOU power price, according to day part by when
Electricity price and realtime power calculate electric energy switching cost.
The fuel cost of micro- gas turbine and gas fired-boiler, the degree electricity cost of conversion to day part are calculated according to formula (2).
The minimum method of operation of cost is chosen according to formula (1), because the major part of cost is that fuel cost and power network are handed over
Mutual power expense and system operation maintenance cost, because system operation maintenance cost is relatively fixed, mainly compares fuel cost
And the power expense interacted with power network, when the electric fuel cost of degree is less than the degree electricity cost interacted with power network, selection uses combustion gas wheel
Machine generates electricity, conversely, then selecting to be powered using power network, it is ensured that the use cost of electric energy is minimum.
Claims (1)
1. a kind of economic operation strategy of micro- energy of providing multiple forms of energy to complement each other, it is characterized by：Set up an economic goal, selection make it is overall into
The method of operation of this minimum or maximum revenue, the influence such as to electric network performance, the shadow to environment are not considered in object function
The non-Economy parameters such as sound；
Economy optimal objective function, i.e. object function are set up for micro-energy resource system day operation expense of providing multiple forms of energy to complement each other is minimum, micro- energy
Power expense and system operation maintenance cost that the day operation comprehensive cost of origin system is mainly interacted including fuel cost with power network
3 aspects：
minKTotal=min (KFuel+KGrid+KMaintain) (1)
In formula：KTotalIt is the day operation comprehensive cost of micro-energy resource system；KFuelIt is fuel cost；KGridIt is the work(interacted with power network
Rate expense；KMaintainIt is system operation maintenance cost；
Wherein, the fuel cost function computing formula of micro- gas turbine and gas fired-boiler is：
In formula：fCHPIt is micro- gas turbine gas consumption flow function；PtFor micro- combustion turbine power is exported, unit is kW；Be by when gas
Valency, unit is $/(kWh)；It is the air consumption of gas fired-boiler t periods, unit is kWh；T is time period sequence number, and unit is h；
Co-feeding system is with the electric energy switching cost function computing formula of power network：
In formula：Be by when electricity price；It is t periods micro- energy net and the electricity cross-over value of bulk power grid；
The operation expense function computing formula of micro-energy resource system is
In formula：I is the equipment sequence, p such as distributed energy, energy storage device, gas turbine, refrigeration machine in systemiIt is the list of each equipment
The operation expense of position power, Pi tFor each equipment runs power；
The constraints of the micro- energy net of supply of cooling, heating and electrical powers includes that cold and hot power-balance, system electrical power are balanced according to the operation of system
With place capacity, equipment run etc. constraint；
The unit power operation expense of micro-energy resource system is calculated according to formula (4), in system equipment determination, operation stable working force
In the case of, the operation expense of unit power is relatively-stationary；
The electric energy switching cost of co-feeding system and power network is calculated according to formula (3), for fixed electricity price garden by when electricity price when it is solid
It is fixed, only switching cost need to be calculated according to realtime power, for the garden of Peak-valley TOU power price, according to day part by when electricity price
Electric energy switching cost is calculated with realtime power；
The fuel cost of micro- gas turbine and gas fired-boiler, the degree electricity cost of conversion to day part are calculated according to formula (2)；
The minimum method of operation of cost is chosen according to formula (1), because the major part of cost is what fuel cost was interacted with power network
Power expense and system operation maintenance cost, because system operation maintenance cost is relatively fixed, mainly compare fuel cost and with
The power expense of power network interaction, when the electric fuel cost of degree is less than the degree electricity cost interacted with power network, selection is sent out using gas turbine
Electricity, conversely, then selecting to be powered using power network, it is ensured that the use cost of electric energy is minimum.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134771A (en) * | 2017-04-10 | 2017-09-05 | 电子科技大学 | A kind of microgrid mode switch control method based on assessment of economic benefit |
| CN107194626A (en) * | 2017-07-26 | 2017-09-22 | 郑州云海信息技术有限公司 | The energy supplying system and energy supply method of a kind of data center |
| CN109345030A (en) * | 2018-10-26 | 2019-02-15 | 南方电网科学研究院有限责任公司 | Multi-microgrid comprehensive energy system thermoelectric energy flow distribution type optimization method and device |
| WO2019184344A1 (en) * | 2018-03-29 | 2019-10-03 | 华南理工大学 | Multi-objective operation control method for microgrid |
| CN110610031A (en) * | 2019-08-22 | 2019-12-24 | 广东电网有限责任公司 | Design method of photovoltaic heat pump energy storage comprehensive energy system |
| CN110796279A (en) * | 2018-08-02 | 2020-02-14 | 中国电力科学研究院有限公司 | Multi-energy complementary optimization operation method and system |
-
2017
- 2017-01-17 CN CN201710031583.8A patent/CN106920177A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134771A (en) * | 2017-04-10 | 2017-09-05 | 电子科技大学 | A kind of microgrid mode switch control method based on assessment of economic benefit |
| CN107134771B (en) * | 2017-04-10 | 2019-09-24 | 电子科技大学 | A kind of microgrid mode switch control method based on assessment of economic benefit |
| CN107194626A (en) * | 2017-07-26 | 2017-09-22 | 郑州云海信息技术有限公司 | The energy supplying system and energy supply method of a kind of data center |
| WO2019184344A1 (en) * | 2018-03-29 | 2019-10-03 | 华南理工大学 | Multi-objective operation control method for microgrid |
| US11443252B2 (en) | 2018-03-29 | 2022-09-13 | South China University Of Technology | Multi-objective operation control method for micro energy grid |
| CN110796279A (en) * | 2018-08-02 | 2020-02-14 | 中国电力科学研究院有限公司 | Multi-energy complementary optimization operation method and system |
| CN109345030A (en) * | 2018-10-26 | 2019-02-15 | 南方电网科学研究院有限责任公司 | Multi-microgrid comprehensive energy system thermoelectric energy flow distribution type optimization method and device |
| CN109345030B (en) * | 2018-10-26 | 2022-02-15 | 南方电网科学研究院有限责任公司 | Multi-microgrid comprehensive energy system thermoelectric energy flow distribution type optimization method and device |
| CN110610031A (en) * | 2019-08-22 | 2019-12-24 | 广东电网有限责任公司 | Design method of photovoltaic heat pump energy storage comprehensive energy system |
| CN110610031B (en) * | 2019-08-22 | 2023-04-18 | 广东电网有限责任公司 | Design method of photovoltaic heat pump energy storage comprehensive energy system |
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Application publication date: 20170704 |