CN109742797A - A kind of regional complex energy distribution system - Google Patents
A kind of regional complex energy distribution system Download PDFInfo
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- CN109742797A CN109742797A CN201910031600.7A CN201910031600A CN109742797A CN 109742797 A CN109742797 A CN 109742797A CN 201910031600 A CN201910031600 A CN 201910031600A CN 109742797 A CN109742797 A CN 109742797A
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- 230000005611 electricity Effects 0.000 claims abstract description 30
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The invention discloses a kind of regional complex energy distribution systems, can be divided into the auxiliary powering device and terminal user etc. such as energy supplying system, energy-storage system, power distribution network, cogeneration cooling heating system and gas fired-boiler, electric refrigerating machine and constitute.Energy supplying system mainly includes the energy resource systems such as distributed generation resource, power grid, natural gas, geothermal energy, biomass energy, is responsible for the generation work of the energy；Energy-storage system includes electricity, air and heat and comprehensive energy storage device；The main task of power distribution network is to complete to stablize transmission and reasonable distribution to different energy sources；Wherein, cogeneration cooling heating system is used using gas turbine as generating equipment, using waste heat boiler, Absorption Refrigerator as the combination of ancillary equipment；Terminal user also has the ability of independent power generation, and extra electric energy is surfed the Net at a competitive price while passing through the Demand Side Response reasonable consumption energy, to obtain bigger economic interests.
Description
Technical field
The present invention relates to electric network synthetic distribution technique fields, match specifically, being related specifically to a kind of regional complex energy
Electric system.
Background technique
Due to the relation between supply and demand growing tension of whole world traditional fossil energy, the diversity of energy supply gradually starts to cause
The concern of people can no longer meet the daily demand of people dependent on the production of energy method of supplying of the single energy, realize energy
The diversification of source structure is extremely urgent.With the development benefit scientific and technological progress of society, different energy sources (coal, water, gas, oil, heat, electricity) etc.
Feed system and the energy with the association between wide terminal (resident, industry, building, traffic etc.) mutually and coupled relation is more close,
Integrated energy system is this to incorporate various non-renewable energy such as natural gas, solar energy, wind energy, geothermal energy, biomass energy and
What the system of production of energy, the supply of traditional fossil energy etc. was come into being.This production and supply for combining different energy sources
Integrated energy system not only greatly reduce the consumption of fossil energy, optimize energy resource structure, also reduce today's society
To the dependence of traditional fossil energy.The energy supply system that integrated energy system is opposed relatively independent, can not depend on extraneous electric power
System, natural calamity or think caused by factor happen suddenly have a power failure in the case where, can be with independent operating, it might even be possible to as outer
The black starting-up power supply of boundary's electric system has some superiority in terms of considering national energy security.
Renewable energy the relevant technologies are quickly grown in recent years, and the energy diversified development and the energy of source and receiving end pass
The defeated innovation with equipment promotes energy resource system further to couple.The implementation of " energy internet " " internet+" wisdom energy theory,
Promote the further coupling and development of integrated energy system.Important pivot of the electric energy as link non-renewable energy and secondary energy sources
Knob makes distribution system in region class and user class integrated energy system, plays irreplaceable " forming a connecting link " effect.Mesh
Preceding distribution system is limited by regulating measure, available resources, is being promoted renewable energy consumption, is being improved distributed energy power grid tune
Degree participation etc. still has deficiency.
Summary of the invention
It is an object of the invention to aiming at the shortcomings in the prior art, provide a kind of regional complex energy distribution system, lead to
The complementary mutually Ji characteristic of comprehensive utilization multipotency stream is crossed, cooperate with optimization with " source-net-lotus-storage " each energy link, and the production-supply-marketing of formation
Integral system, to solve problems of the prior art.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of regional complex energy distribution system, including for being energized for electric load power bus-bar, for for refrigeration duty
The refrigeration duty bus of energy supply and thermic load bus for being energized for thermic load；
The power bus-bar be connected with distributed energy power generation unit, comprehensive energy-storage units, electric storage device, gas turbine and
Electrically-charging equipment；When electric heating is greater than original machine power than relatively small or user's electric load, distributed energy power generation unit is responsible for
Power generation, extra electric energy are stored in comprehensive energy-storage units and electric storage device；When the electric energy that distributed energy power generation unit generates
Less than electric load demand when, comprehensive energy-storage units, electric storage device and electrically-charging equipment by the electrical energy transportation of storage to power bus-bar,
To meet the needs of electric load；
The thermic load bus is connected with comprehensive energy-storage units, gas fired-boiler, earth source heat pump, waste heat boiler and heat accumulation dress
It sets；Gas fired-boiler generates thermal energy by burning natural gas and is transferred to thermic load bus；Earth source heat pump by by Cryogenic air and ground
Thermal energy carries out heat exchange to energize to thermic load bus；Waste heat boiler is used to recycle the heat generated when gas turbine power generation, with
Heating demand bus uses；The extra thermal energy storage that gas fired-boiler, earth source heat pump and waste heat boiler generate is in comprehensive energy storage list
In member and heat-storing device；When the energy supply deficiency of gas fired-boiler, earth source heat pump and waste heat boiler, comprehensive energy-storage units and heat accumulation dress
It sets the electrical energy transportation of storage to power bus-bar, to meet the needs of electric load；
The refrigeration duty bus is connected with electric refrigerating machine and absorption refrigerating machine, and the energy input terminal and electric power of electric refrigerating machine are female
Line connection, the energy input terminal of absorption refrigerating machine are connect with gas turbine, are needed when the cooling supply capacity of refrigeration duty bus is not able to satisfy
When asking, the cold demand of heat is converted to electricity demanding by electric refrigerating machine and absorption refrigerating machine, to meet the needs of refrigeration duty.
Further, electric-gas coupling unit, electric-gas-thermal coupling are equipped between the power bus-bar and thermic load bus
Unit includes electric conversion module and gas turbine；The high-grade thermal energy that gas turbine is obtained by burning natural gas is for sending out
Electricity, in the electrical energy transportation to power bus-bar of generation, low grade heat energy is used for heat supply and cooling supply, be delivered to respectively thermic load bus and
On refrigeration duty bus；Electric conversion module by electric power turns gas technology superfluous electric energy is converted to imflammable gas to be stored in
In natural gas line.
Compared with prior art, the beneficial effects of the present invention are:
By the systems such as coupling electrical power, natural air and heat, cold realize have complementary advantages and renewable energy at the regional level in
Shared and efficient utilization, provides good energy services.
Detailed description of the invention
Fig. 1 is the structural block diagram of regional complex energy distribution system of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Regional complex energy distribution system of the present invention can be divided into energy supplying system, energy-storage system, power distribution network, cold and hot
Cogeneration system and gas fired-boiler, electric refrigerating machine etc. assist powering device and terminal user etc. to constitute.Energy supplying system mainly wraps
The energy resource systems such as distributed generation resource, power grid, natural gas, geothermal energy, biomass energy are included, the generation work of the energy is responsible for；Energy storage system
System includes electricity, air and heat and comprehensive energy storage device；The main task of power distribution network is to complete to stablize transmission and conjunction to different energy sources
Reason distribution；Wherein, cogeneration cooling heating system is used using gas turbine as generating equipment, is with waste heat boiler, Absorption Refrigerator
The combination of ancillary equipment；Terminal user also has independent power generation while passing through the Demand Side Response reasonable consumption energy
Ability, and extra electric energy is surfed the Net at a competitive price, to obtain bigger economic interests.
The capital equipment of electric-gas coupling is that gas turbine and electricity turn device of air, the height on the one hand obtaining combustion of natural gas
For grade thermal energy for generating electricity, low grade heat energy is used for heat supply and cooling supply；On the other hand because the electric gas technology that turns can be superfluous electricity
Energy long-time Mass storage, can be in the main time of intermittent renewable energy supply electricity needs in natural gas line
The interior combination balancing solution for realizing time and space is in peak period in load valley wind-powered electricity generation, between the system that improves dissolves
The generating capacity of having a rest property renewable energy such as wind-powered electricity generation etc.；Thermal energy is one of the product of numerous productions of energy, the heating of earth source heat pump
Process and process of refrigerastion by inputting a small amount of high-grade energy (such as electric energy) on the contrary, being realized the land shallow-layer energy by low-grade
Thermal energy is to high-grade heat energy transfer.Earth source heat pump by indoor cold air energy input to ground end, with underground water, water of river and lake,
All kinds of water resources and soil source etc. such as reservoir water, seawater, municipal middle water, industrial tail water, tunnel water carry out cold and hot exchange, realize
Indoor heating operations.The utilization efficiency of the development of electric-thermal coupling technique, receiving ability and the energy for renewable energy has
Active influence.It is that main fuel tape moves gas turbine power generating plant operation with natural gas, the power supply user's of generation
Electricity needs, the waste heat being discharged after system power generation pass through waste heat boiler to user's heat supply, cooling supply.Pass through the side of cold, heat and electricity triple supply
Formula greatly improves the primary energy utilization ratio of whole system, realizes the cascade utilization of the energy.Grid-connected electric power can also be provided to make
The energy is complementary, and the economic well-being of workers and staff and efficiency of whole system are increase accordingly.
Embodiment 1
Referring to Fig. 1, specific structure of the invention is as shown in Figure 1, mainly natural including 1- distributed energy, 2- power grid, 3-
Gas, 4- geothermal energy, 5- electricity turn device of air, 6- caisson, 7- comprehensive energy-storage units, 8- electric storage device, 9- gas turbine, 10-
Gas fired-boiler, 11- earth source heat pump, 12- power bus-bar, 13- electrically-charging equipment, 14- waste heat boiler, 15- electric refrigerating machine, 16- absorb
Refrigeration machine, 17- heat accumulation, 18- refrigeration duty bus, 19- thermic load bus, 20- electric load, 21- refrigeration duty, 22- thermic load.
Its working principle is that: regional complex energy distribution system is directly energized to user, when customer charge changes in demand,
It is (cold) more electric than keeping inconsistence problems than with system heat that there are (cold) electricity of the heat of customer charge.It is examined from the angle for meeting workload demand
Consider, there are four types of common ' In System Reconfiguration Method i.e. using mend electronic system integrated approach, using concurrent heating subsystem integrated approach,
Electric-thermal converts integrated approach and the integrated approach using accumulation of energy means.
When electric heating than relatively small or user's electric load be greater than original machine power when, using mend electronic system integrated approach,
Wherein distributed energy 1 generates electricity, all available resource power generations of 1 gas-to electricity of distributed energy, as photovoltaic power generation, wind-force are sent out
The available resource power generations such as electricity, geothermal power generation, the power generation of natural gas 3, it is specific to be distributed by the electricity of sending and on power bus-bar 12
1 forms of electricity generation of formula can be selected according to regional advantages.When the electricity that distributed energy 1 is issued is not enough to use for power load
When, wherein electric storage device 8 can be by the electrical energy transportation of storage to power bus-bar 12, and comprehensive energy-storage units 7 can be by the electric energy of storage simultaneously
To power bus-bar 12.Gas turbine 9 is primarily used to burning many combustible gases and generates thermal energy, the machine of pushing generator power generation
Device, wherein combustible includes coal gas, natural gas, biogas, hydrogen and diesel oil, can be different according to the resourceful degree in different regions
The actual conditions of sample select the corresponding combustible to promote power generation.The electricity that gas turbine 9 issues can and on power bus-bar 12.With
This simultaneously, electrically-charging equipment 13 can also be by the point of storage and on power bus-bar 12.Thus it can lead to supplement jointly in the above manner
Electric energy, supply load 20 use.
When regional complex energy distribution system is when being unable to meet demand for thermal capacity, using the integrated side of concurrent heating subsystem
Method, can be burnt and 17 heat supply of heat-storing device by natural gas 3, when can also recycle gas turbine 9 by waste heat boiler 14 and generating electricity
The heat of generation provides thermal energy.It can be able to be also simultaneously natural gas, city by 10 heat supply of gas fired-boiler, the fuel of gas fired-boiler 10
The selection of coal gas, coke-stove gas, liquefied petroleum gas and biogas etc., specific fuel can be chosen according to regional advantages.Can also it lead to
Earth source heat pump 11 is crossed by indoor cold air energy input into ground end, with underground water, water of river and lake, reservoir water, seawater, city
All kinds of water resources and soil source etc. such as water, industrial tail water, tunnel water carry out cold and hot exchange, realize indoor heating.It is same with this
When can also turn device of air 5 with electricity excessively and combine gas fired-boiler 10 and 14 heat supply of gas turbine 9 and waste heat boiler.Storage can also similarly be passed through
Device of air 6 combines gas fired-boiler 10 and 14 heat supply of gas turbine 9 and waste heat boiler.It can also be with excessively comprehensive accumulation power supply and negative to heat
On lotus bus 19.Above method can provide thermal energy, is specifically chosen and is selected in combination with regional advantages.
When the cooling supply capacity of regional complex energy distribution system is unable to meet demand, by electric refrigerating machine 15 and system can be absorbed
Cold 16 and on refrigeration duty bus 18, is converted to electricity demanding for the cold demand of heat, to meet the needs of refrigeration duty 20.
When user demand is there are when peak-valley difference, by accumulation of energy means introduce region energy distribution system.Electric power mistake ought occur
When surplus, excessive electric energy can be stored by electric energy storage device 8, can also turn gas 5 by electricity can be extensive for a long time superfluous electric energy
It is stored in natural gas line, improves the generating capacity of the system consumption intermittent renewable energy such as wind-powered electricity generation etc..It can also store simultaneously
In electrically-charging equipment 13.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (2)
1. a kind of regional complex energy distribution system, it is characterised in that: including for the power bus-bar for electric load (20) energy supply
(12), the thermic load mother for being the refrigeration duty bus (18) of refrigeration duty (21) energy supply and for being thermic load (22) energy supply
Line (19)；
The power bus-bar (12) be connected with distributed energy power generation unit (1), comprehensive energy-storage units (7), electric storage device (8),
Gas turbine (9) and electrically-charging equipment (13)；It is distributed when electric heating is greater than original machine power than relatively small or user's electric load
Energy generator unit (1) is responsible for power generation, and extra electric energy is stored in comprehensive energy-storage units (7) and electric storage device (8)；Work as distribution
When the electric energy that formula energy generator unit (1) generates is less than the demand of electric load (20), comprehensive energy-storage units (7), electric storage device (8)
With electrically-charging equipment (13) by the electrical energy transportation of storage to power bus-bar (12), to meet the needs of electric load (20)；
The thermic load bus (19) is connected with comprehensive energy-storage units (7), gas fired-boiler (10), earth source heat pump (11), waste heat pot
Furnace (14) and heat-storing device (17)；Gas fired-boiler (10) generates thermal energy by burning natural gas (3) and is transferred to thermic load bus
(19)；Earth source heat pump (11) is energized by the way that Cryogenic air and geothermal energy (4) are carried out heat exchange to thermic load bus (19)；It is remaining
Heat boiler (14) is used to recycle the heat generated when gas turbine (9) power generation, with heating demand bus (19) use；Gas fired-boiler
(10), the extra thermal energy storage that earth source heat pump (11) and waste heat boiler (14) generate is in comprehensive energy-storage units (7) and heat accumulation dress
It sets in (17)；When the energy supply deficiency of gas fired-boiler (10), earth source heat pump (11) and waste heat boiler (14), comprehensive energy-storage units
(7) and heat-storing device (17) is by the electrical energy transportation of storage to power bus-bar (12), to meet the needs of electric load (20)；
The refrigeration duty bus (18) is connected with electric refrigerating machine (15) and absorption refrigerating machine (16), and the energy of electric refrigerating machine (15) is defeated
Enter end to connect with power bus-bar (12), the energy input terminal of absorption refrigerating machine (16) is connect with gas turbine (9), as refrigeration duty mother
When the cooling supply capacity of line (18) is unable to meet demand, the cold demand of heat is converted to electricity by electric refrigerating machine (15) and absorption refrigerating machine (16)
Demand, to meet the needs of refrigeration duty (20).
2. regional complex energy distribution system according to claim 1, it is characterised in that: in the power bus-bar (12) and
Electric-gas coupling unit is equipped between thermic load bus (19), electric-gas-thermal coupling unit includes electric conversion module (5) and combustion gas
Turbine (9)；The high-grade thermal energy that gas turbine (9) is obtained by burning natural gas is for generating electricity, the electrical energy transportation of generation to electricity
On power bus (12), low grade heat energy is used for heat supply and cooling supply, is delivered to thermic load bus (19) and refrigeration duty bus respectively
(18) on；Electric conversion module (5) by electric power turns gas technology superfluous electric energy is converted to imflammable gas to be stored in day
In right feed channel.
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| CN110645098A (en) * | 2019-09-26 | 2020-01-03 | 东北大学 | Regional comprehensive energy system containing carbon dioxide energy storage and operation method thereof |
| CN110932317A (en) * | 2019-11-29 | 2020-03-27 | 国网新疆电力有限公司 | Design method of distributed energy system with complementary essential renewable energy sources |
| CN111262240A (en) * | 2020-02-21 | 2020-06-09 | 山东大学 | Optimized operation method and system for comprehensive energy system |
| CN111325636A (en) * | 2020-03-04 | 2020-06-23 | 贵州电网有限责任公司 | Comprehensive energy system |
| CN112260308A (en) * | 2020-09-29 | 2021-01-22 | 青海大学 | Geothermal-photovoltaic-heat storage combined operation method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645098A (en) * | 2019-09-26 | 2020-01-03 | 东北大学 | Regional comprehensive energy system containing carbon dioxide energy storage and operation method thereof |
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| CN110932317A (en) * | 2019-11-29 | 2020-03-27 | 国网新疆电力有限公司 | Design method of distributed energy system with complementary essential renewable energy sources |
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| CN111262240B (en) * | 2020-02-21 | 2021-06-22 | 山东大学 | Optimized operation method and system for comprehensive energy system |
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| CN112260308A (en) * | 2020-09-29 | 2021-01-22 | 青海大学 | Geothermal-photovoltaic-heat storage combined operation method and system |
| CN112882403A (en) * | 2021-01-26 | 2021-06-01 | 国家电投集团河南电力有限公司 | Comprehensive intelligent energy management and control system based on Internet of things |
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