CN112821447A - Operation condition set division method for multi-energy form energy router - Google Patents

Operation condition set division method for multi-energy form energy router Download PDF

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CN112821447A
CN112821447A CN202110008194.XA CN202110008194A CN112821447A CN 112821447 A CN112821447 A CN 112821447A CN 202110008194 A CN202110008194 A CN 202110008194A CN 112821447 A CN112821447 A CN 112821447A
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energy
mode
grid
power
heat
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立梓辰
张延迟
解大
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Shanghai Dianji University
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144Demand-response operation of the power transmission or distribution network
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/22The renewable source being solar energy
    • H02J2300/24The renewable source being solar energy of photovoltaic origin
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/28The renewable source being wind energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/40Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225Demand response systems, e.g. load shedding, peak shaving
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention relates to a method for dividing operation condition sets of a multi-energy form energy router, wherein the energy router acquires electric energy sent by a power supply unit through an energy input port and is connected with an energy transmission unit through an energy output access port, the energy transmission unit comprises a plurality of sub-modules, the energy router is classified according to the operation state of the power supply unit to obtain a plurality of operation levels, the operation states of the sub-modules of the energy transmission unit comprise a peak load state and a valley load state, the energy router divides various operation condition sets according to the operation levels of the power supply unit and the peak load state or the valley load state of the sub-modules of the energy transmission unit, and corresponding energy output is carried out according to the operation condition sets. Compared with the prior art, the method has the advantages of improving the response speed of the energy router, effectively solving the problem that the operation mode of the energy router is not fixed and the like.

Description

Operation condition set division method for multi-energy form energy router
Technical Field
The invention relates to the field of comprehensive energy systems and intelligent scheduling, in particular to a method for dividing an operation working condition set of a multi-energy form energy router.
Background
The energy router is the equipment in a FREEDM system constructed at North card State university at the earliest, the system mainly controls the transmission and coordination management of distributed renewable energy, the architecture of the system is hierarchical control, and the system comprises links such as a distributed power supply, energy storage, load, intelligent energy management and the like, and is named as an energy router. Much research has been followed to develop a FREEDM based system that provides beneficial improvements in the topology of solid state transformers.
In the prior art, the research on the energy router mainly starts from three aspects of modeling, simulation and control strategies of a solid-state transformer, and researches on the energy internet networking form mainly based on the energy router. Researchers build a small-sized energy network taking two 100kW energy routers as the center, deduce a flux linkage expression of a high-frequency transformer, and design a corresponding control strategy to manage energy transmission.
The energy router mainly has the functions of energy transfer and energy distribution, and solves the problem of energy information flow routing by using a network theory as a support aiming at the problem of energy transmission blockage. By adopting graph theory and multi-agent technology, the method for routing the electric energy based on single input and single output is provided, and the Dijkstra theory is used for selecting and realizing the shortest energy flow path.
For the research on the intelligent management of energy routers in various energy forms, at present, a multi-Agent system (mas) is added into energy scheduling, and the whole energy internet system is divided into subsystems for unified scheduling control. An electric power market bidding mechanism is introduced into the MAS control at present, and energy scheduling can be carried out according to the supply and demand price of the electric power market.
At present, in the prior art, the energy scheduling is mostly researched to optimize the economic operation of the system into an objective function, reduce the equipment operation cost of each part of the energy router into a single objective function, and consider environment optimization as a target. In the current energy development trend mainly based on renewable energy, more and more people add new energy into the planning operation of energy scheduling, and an optimal economic and environmental protection performance is taken as a target function, so that an optimized scheduling model of a comprehensive energy system is established. Modeling and solving the energy hub in the system with multiple energy forms, and finally optimizing and summarizing the energy hub.
The existing research is conducted on the topology structure and the control method of the energy router, but the existing research is conducted on the electric energy router, and the research on the scheduling control of the energy router in various energy forms is lacked. The MAS, although it can solve the control problem of the multi-energy system, does not solve the problem of the energy flow control method of the energy router with multiple energy forms.
Disclosure of Invention
The invention aims to provide a method for dividing an operation working condition set of a multi-energy form energy router in order to overcome the defects of unfixed operation mode and slow response of the energy router in the prior art.
The purpose of the invention can be realized by the following technical scheme:
the energy router obtains electric energy sent by a power supply unit through an energy input port and is connected with an energy transmission unit through an energy output access port, the energy transmission unit comprises a plurality of sub-modules, the energy router is classified according to the operation state of the power supply unit to obtain a plurality of operation levels, the operation states of the sub-modules of the energy transmission unit comprise a peak load state and a valley load state, the energy router divides a plurality of operation condition sets according to the operation levels of the power supply unit and the peak load state or the valley load state of the sub-modules of the energy transmission unit, and corresponding energy output is carried out according to the operation condition sets.
The peak load state is a part of the load exceeding the average load line, and the valley load state is a part of the load below the average load line.
The power supply unit comprises a wind power generation module, a photovoltaic power generation module and an energy storage battery.
Furthermore, the energy input port comprises an energy input access port and an energy storage access port, the wind power generation module and the photovoltaic power generation module are connected with the energy input access port, and the energy storage battery is connected with the energy storage access port.
The operation levels of the power supply unit include a peak level, a middle level, and a valley level.
Further, the stable power of the grid-connected AC-DC conversion unit is set to be Pep·sStarting power of the water electrolysis equipment is PeEWE·sThe output power of the new energy resource is Penew
The submodules of the energy transmission unit comprise a power grid module, an air grid module and a heat supply network module, and corresponding average load lines are respectively represented as PeL、PgL、PeLThe load priority is PeL>PgL>PeL
Furthermore, the power grid module is provided with a wind and light complementary power generation control assembly, an electricity storage system and a gas turbine power generation control assembly, the gas grid module is provided with a gas consumption control assembly, a gas storage tank and water electrolysis equipment, and the heat supply network module is provided with electric boiler equipment and a heat storage water tank.
When the power supply unit is at the peak level, the input electric energy of an energy input port in the energy router meets the grid-connected condition at the moment, the energy router inputs the electric energy of the new energy to be at the highest priority, and because the time scales of the electric energy, the fuel gas and the heat energy are different, the demand response priority of the energy network load is that a power grid is greater than a gas grid and a heat grid is greater than a heat grid, a certain margin is reserved, the energy router operates according to the peak and load states of the electricity, gas and heat grids, and the specific operation working condition set is shown in table 1:
TABLE 1 intersection of peak-level states of power supply units and operating modes of energy routers
Figure BDA0002883901780000031
In the table, the plant operation control value is 1, the plant operation stop is 0, the value of a is 0 or 1, the control value a is 1 when the gas turbine is in the operation state, and the shutdown state is 0; the value of b is 0 or 1, the control value b is 1 when the water electrolysis equipment is in the running state, and the shutdown state is 0.
When the power supply unit is in a middle-level state, the energy access port of the energy router inputs electric energy which cannot reach a grid-connected condition, new energy input electric energy is not used as the highest priority, the topological structure of the system is changed, a gas network transmits gas to a gas turbine, a gas turbine power generation system is started to be used as grid-connected electric energy input, heat energy generated during combustion of the gas is transmitted to a heat storage water tank, the new energy input electric energy is transmitted to water electrolysis equipment to perform water electrolysis hydrogen production, hydrogen is transmitted to a gas storage tank through a natural gas pipeline to be stored, and specific operation conditions are shown in a table 2:
TABLE 2 intersection of the Power supply Unit intermediate State and the energy Router operating mode
Figure BDA0002883901780000041
Figure BDA0002883901780000051
When the power supply unit is in a valley state, wind power resources and photovoltaic resources are in an unavailable state, a new energy access port of the energy router does not have energy to flow, wind and photovoltaic resources are abandoned at the moment, the demand response of a power grid completely depends on the power generation of a gas turbine, the demand priority of energy network loads is that the power grid is larger than the gas grid and the heat grid is larger than the energy network, the energy router is in a semi-static state, and the specific operation condition set is shown in table 3:
TABLE 3 intersection of Power supply Unit Valley State and energy Router operating modes
Figure BDA0002883901780000052
Figure BDA0002883901780000061
Furthermore, the operation condition concentrated energy flow mode is divided into 8 modes, wherein the power grid module is provided with 4 energy flow modes, the air grid module is provided with 2 energy flow modes, and the heat grid module is provided with 2 energy flow modes.
Furthermore, the 4 energy flow modes of the power grid module comprise a mode (A-1) of supplying power to a power grid by wind-solar complementary power generation, a mode (A-2) of supplying power to water electrolysis equipment by wind-solar complementary power generation, a mode (A-3) of supplying power to the power grid by CHP power generation and a mode (A-4) of supplying power to water electrolysis hydrogen production equipment by the power grid, the 2 energy flow modes of the gas grid module comprise a mode (B-1) of supplying heat to a heat storage water tank by electric boiler heat supply and a mode (B-2) of supplying heat to the heat storage water tank by CHP heat production, and the 2 energy flow modes of the heat grid module comprise a mode (C-1) of supplying gas to a gas storage tank by water electrolysis hydrogen production and a mode (.
Further, the energy router is provided with 10 working modes according to the operation condition centralized energy flow mode, namely a new energy grid-connected power generation mode, a new energy grid-connected heat supply mode, a new energy hydrogen production + heat supply mode, a CHP grid-connected power generation + new energy hydrogen production + heat supply mode, a CHP grid-connected power generation mode, a power grid water electrolysis hydrogen production + heat supply mode, an electric boiler heat supply mode and a shutdown mode.
Each operation mode corresponds to a plurality of operation modes, and the specific correspondence is shown in table 4:
TABLE 4 operational mode partitioning of energy routers
Figure BDA0002883901780000062
Figure BDA0002883901780000071
Further, the energy router collects the operation states of each device in the power grid module, the air grid module and the heat supply network module in hours, and calculates the energy value of each energy output access port at each time under each operation level.
Compared with the prior art, the invention has the following beneficial effects:
the method and the device classify according to the output power of the new energy power supply unit, divide the peak-to-charge state and the valley-to-charge state according to the operation state of the sub-modules of the energy transmission unit, divide various operation condition sets according to the operation level of the power supply unit and the peak-to-charge state or the valley-to-charge state of the sub-modules of the energy transmission unit, and output corresponding energy according to the energy flow mode and the working mode corresponding to the operation condition sets, so that the problem that the operation mode of the energy router is not fixed is effectively solved, and the response speed of the energy router is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of the operational grading of the present invention;
FIG. 3 is a schematic structural diagram of a grid-connected power generation mode according to the present invention;
FIG. 4 is a schematic diagram of the energy flow direction of the grid-connected heating mode of the present invention;
FIG. 5 is a schematic diagram of the structure of the hydrogen production mode by water electrolysis according to the present invention;
FIG. 6 is a schematic diagram of the energy flow direction of the hydrogen production by electrolysis of water + heat supply mode of the present invention;
FIG. 7 is a schematic diagram of the energy flow direction of the CHP grid-connected power generation + new energy hydrogen production mode of the present invention;
FIG. 8 is a schematic diagram of the CHP grid-connected power generation mode of the present invention;
FIG. 9 is a schematic diagram of the energy flow direction of the power grid electrolytic water hydrogen production mode of the present invention;
FIG. 10 is a schematic diagram of the energy flow direction of the power grid electrolysis water hydrogen production heating mode;
FIG. 11 is a schematic view showing the flow of energy in a heating mode of the electric boiler according to the present invention;
FIG. 12 is a schematic diagram of the output situation of the wind power photovoltaic new energy in the embodiment of the invention;
FIG. 13 is a diagram illustrating energy flow among ports of an energy router according to an embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, a method for dividing operation condition sets of a multi-energy form energy router includes that the energy router obtains electric energy sent by a power supply unit through an energy input port, and is connected with an energy transmission unit through an energy output access port, the energy transmission unit includes a plurality of sub-modules, the energy router is classified according to operation states of the power supply unit to obtain a plurality of operation levels, the operation states of the sub-modules of the energy transmission unit include a peak load state and a valley load state, the energy router divides various operation condition sets according to the operation levels of the power supply unit and the peak load state or the valley load state of the sub-modules of the energy transmission unit, and corresponding energy output is performed according to the operation condition sets.
The power supply unit comprises a wind power generation module, a photovoltaic power generation module and an energy storage battery.
The energy input port comprises an energy input access port and an energy storage access port, the wind power generation module and the photovoltaic power generation module are connected with the energy input access port, and the energy storage battery is connected with the energy storage access port.
As shown in fig. 2, the operation levels of the power supply unit include a peak level, a middle level, and a valley level.
The sub-modules of the energy transmission unit comprise a power grid module, an air grid module and a heat supply network module.
The power grid module is provided with a wind and light complementary power generation control assembly, a power storage system and a gas turbine power generation control assembly, the gas grid module is provided with a gas consumption control assembly, a gas storage tank and water electrolysis equipment, and the heat supply network module is provided with electric boiler equipment and a heat storage water tank.
The operation condition concentrated energy flow mode is divided into 8 modes, wherein the power grid module is provided with 4 energy flow modes, the air grid module is provided with 2 energy flow modes, and the heat grid module is provided with 2 energy flow modes.
The 4 energy flow modes of the power grid module comprise a mode of supplying power to a power grid by wind-solar complementary power generation, a mode of supplying power to water electrolysis equipment by wind-solar complementary power generation, a mode of supplying power to the power grid by CHP power generation and a mode of supplying power to water electrolysis hydrogen production equipment by the power grid, the 2 energy flow modes of the gas grid module comprise a mode of supplying heat to a heat storage water tank by electric boiler heat supply and a mode of supplying heat to a heat storage water tank by CHP heat generation, and the 2 energy flow modes of the heat grid module comprise a mode of supplying gas to a gas storage tank by water electrolysis hydrogen.
As shown in fig. 3 to 11, the energy router is provided with 10 working modes according to the operation condition centralized energy flow mode, which are a new energy grid-connected power generation mode, a new energy grid-connected + heat supply mode, a new energy hydrogen production + heat supply mode, a CHP grid-connected power generation + new energy hydrogen production + heat supply mode, a CHP grid-connected power generation mode, a grid electrolyzed water hydrogen production + heat supply mode, an electric boiler heat supply mode, and a shutdown mode.
The energy router collects the operation states of all equipment in the power grid module, the air grid module and the heat supply network module by taking hours as units, and calculates to obtain the energy value of each energy output access port at each moment under each operation level.
Examples
In this embodiment, the state parameters of the energy router are shown in table 5:
TABLE 5 energy Router State parameter settings
Figure BDA0002883901780000091
The data of electrical, gas and thermal load of a certain place are shown in table 6:
TABLE 6 24h electric load, gas load, heat load data somewhere
Figure BDA0002883901780000092
Figure BDA0002883901780000101
The peak value of the electric load is 300kW, and the valley value is 200 kW; the peak value of the heat load is 220kW, and the valley value is 170 kW; the peak value of the gas load is 175kW, and the valley value is 115 kW. The three loads of electricity, gas and heat are averaged, the load is the positioning peak load when the average value is exceeded, and the load is the valley load when the average value is lower. The load states of the grid, the gas grid and the heat supply network are shown in table 7:
TABLE 7 load states of the grid, heat supply network, gas network
Figure BDA0002883901780000102
The daily output curves of wind power and photovoltaic power at the place obtained by actual tests are shown in fig. 12, the standard is divided according to the output grade of new energy, and the stable power of the power grid alternating current-direct current conversion unit is Pep·sRated power of water electrolysis equipment is PeEWE·sThe output power of the new energy resource is Penew. As can be seen from Table 5, Pep·s200kW, PeEWE·sThe energy output level is 80kW, and therefore, the available new energy output level states are shown in table 7, and are divided into peak level, middle level, and valley level according to the new energy output data, and table 8 specifically includes the following:
TABLE 8 New energy output class status
Figure BDA0002883901780000103
The scheduling algorithm of the energy router outputs the operation mode results according to the new energy output state and the load states of the power grid, the gas grid and the heat supply network as shown in table 9:
TABLE 9 energy Router scheduling results
Figure BDA0002883901780000111
The scheduling process of the energy router operation mode is as follows:
and (3) 0-2, the new energy output level is at a valley level, the new energy valley level mode scheduling sub-process is entered, the power grid is judged to be in a valley load state, and the judgment process enters the air grid and heat supply network state judgment. The air network is judged to be in a peak load state, the heat network is in a valley load state, and the operation mode is seven: and a power grid water electrolysis hydrogen production mode.
And 2-6, when the output level of the new energy is middle, entering a new energy middle mode scheduling sub-process, judging that the power grid is in a valley load state, and judging that the process enters an air grid and heat supply network state. The air network is judged to be in a peak load state, the heat network is in a valley load state, and the operation mode is three: and a new energy hydrogen production mode by water electrolysis.
And 6-8, when the new energy output level is a middle level, entering a new energy middle level mode scheduling sub-process, judging that the power grid is in a peak load state, starting CHP equipment, and operating in a fifth mode: CHP grid-connected power generation and new energy hydrogen production mode.
And 9-19, when the new energy output level is at the peak level, entering a new energy peak level mode scheduling sub-process, judging that the power grid is in a peak load state, and judging that the process enters an air grid and heat supply network state judgment. The air network is judged to be in a valley-load state, the heat network is in a peak-load state, and the operation mode II is as follows: new energy grid connection and heat supply mode.
And (5) at 20-23 points, the output grade of the new energy is middle grade, at the moment, a new energy middle grade mode scheduling sub-process is entered, the power grid is judged to be in a valley load state, and the judgment process is entered into air grid and heat supply network state judgment. The air network is judged to be in a peak load state, the heat network is in a valley load state, and the operation mode is three: and a new energy hydrogen production mode by water electrolysis.
As shown in fig. 13, the result of the operating state of the energy router is that the energy router always has an operating mode under the condition of a change in the output level of the new energy and a change in the load of the source network, and can respond to the energy demand and utilize the new energy to the maximum extent.
In addition, it should be noted that the specific embodiments described in the present specification may have different names, and the above descriptions in the present specification are only illustrations of the structures of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the invention. Various modifications or additions may be made to the described embodiments or methods may be similarly employed by those skilled in the art without departing from the scope of the invention as defined in the appending claims.

Claims (10)

1. The method for dividing the operation condition sets of the multi-energy form energy router is characterized in that the energy router acquires electric energy sent by a power supply unit through an energy input port and is connected with an energy transmission unit through an energy output access port, the energy transmission unit comprises a plurality of sub-modules, the energy router is classified according to the operation state of the power supply unit to obtain a plurality of operation levels, the operation states of the sub-modules of the energy transmission unit comprise a peak load state and a valley load state, the energy router divides various operation condition sets according to the operation levels of the power supply unit and the peak load state or the valley load state of the sub-modules of the energy transmission unit, and corresponding energy output is carried out according to the operation condition sets.
2. The method as claimed in claim 1, wherein the power supply unit comprises a wind power generation module, a photovoltaic power generation module and an energy storage battery.
3. The method as claimed in claim 2, wherein the energy input port comprises an energy input access port and an energy storage access port, the wind power generation module and the photovoltaic power generation module are connected to the energy input access port, and the energy storage battery is connected to the energy storage access port.
4. The method as claimed in claim 1, wherein the operation level of the power supply unit includes a peak level, a middle level and a valley level.
5. The method as claimed in claim 1, wherein the sub-modules of the energy delivery unit include a grid module, an air grid module and a heat grid module.
6. The method for partitioning the operating condition set of the multi-energy form energy router as claimed in claim 5, wherein the power grid module is provided with a wind and light complementary power generation control assembly, an electricity storage system and a gas turbine power generation control assembly, the gas grid module is provided with a gas consumption control assembly, a gas storage tank and an electrolytic water device, and the heat grid module is provided with an electric boiler device and a heat storage water tank.
7. The method as claimed in claim 6, wherein the operating condition set division method of the multi-energy form energy router is characterized in that the operating condition set division method is divided into 8 modes, wherein the grid module is provided with 4 energy flow modes, the air grid module is provided with 2 energy flow modes, and the heat grid module is provided with 2 energy flow modes.
8. The method as claimed in claim 7, wherein the 4 energy flow modes of the power grid module include a mode of supplying power to the power grid by wind-solar hybrid power generation, a mode of supplying power to water electrolysis equipment by wind-solar hybrid power generation, a mode of supplying power to the power grid by CHP power generation, and a mode of supplying power to water electrolysis hydrogen production equipment by the power grid, the 2 energy flow modes of the gas grid module include a mode of supplying heat to an electric boiler, a mode of supplying heat to a heat storage water tank by CHP heat generation, and the 2 energy flow modes of the heat grid module include a mode of supplying gas to a gas storage tank by water electrolysis hydrogen production and a mode of consuming CHP fuel gas.
9. The method for dividing the operating condition set of the multi-energy form energy router according to claim 7, wherein the energy router is provided with 10 operating modes according to an operating condition centralized energy flow mode, wherein the 10 operating modes are respectively a new energy grid-connected power generation mode, a new energy grid-connected + heat supply mode, a new energy hydrogen production + heat supply mode, a CHP grid-connected power generation + new energy hydrogen production + heat supply mode, a CHP grid-connected power generation mode, a grid electrolysis water hydrogen production + heat supply mode, an electric boiler heat supply mode and a shutdown mode.
10. The method as claimed in claim 6, wherein the energy router collects the operation states of each device in the power grid module, the air grid module and the heat grid module in hours, and calculates the energy value of each energy output access port at each time in each operation level.
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