CN104570995A - Multi-energy-medium coupling control system - Google Patents

Abstract

The invention discloses a multi-energy medium coupling control system, which is used to provide energy consumption equipment with various energy mediums such as electricity and heat that meet the needs. It includes one or more energy hub multi-energy medium coupling control systems. Multi-Agent distribution control. The energy hub contains energy conversion, distribution, and storage equipment such as transformers, micro-turbines, and gas furnaces. The input of the energy hub includes various media such as electricity and natural gas, and the output meets the electricity and heat of energy-consuming equipment. The multi-energy media coupling control The system optimizes the combination of various energy supply methods, so as to minimize the consumption of limited resources and improve its robustness under the premise of ensuring the normal energy supply to energy-consuming equipment.

Description

Multi-energy medium coupling control system

technical field

The patent of the present invention relates to the field of energy technology, in particular to a coupling device for a distributed energy system containing multiple energy media and its distributed control technology. the

Background technique

Much of the current energy infrastructure was put into use in the second half of the twentieth century, and they face serious challenges in meeting future energy demands. Transmission systems are congested, many facilities are nearing obsolescence, energy demands are growing, fossil energy resources are limited, and electricity The industry needs to restructure and face sustainable and environmentally friendly energy issues. Different infrastructures for industrial, commercial and residential consumers need to provide services in various forms of energy. In the industrial field, various energy media such as coal, petroleum products and electricity, natural gas, and district heating/cooling are widely used. Currently, different Infrastructures that operate basically independently can bring a lot of benefits by merging them. Merging different infrastructures means coupling them so that energy from different facilities can be exchanged with each other. the

At present, the economic and physical properties of different energy medium systems have been well understood, and more research has been done on distributed energy technology itself, such as cogeneration technology, etc., but its overall characteristics have not been extensively and deeply studied, so it is necessary to develop A multi-energy medium coupling control system uses energy hubs to realize multi-energy medium coupling and meet the goals of cost, energy efficiency, emission, feasibility, safety and other parameter optimization. the

Contents of the invention

In view of the above existing problems, the main purpose of the patent of the present invention is to provide a coupling device for a distributed energy system containing multiple energy media, using multi-agent distributed control technology to meet the energy requirements of different loads, improve energy utilization efficiency, reduce Other indicators such as cost, improved reliability and reduced emissions are required. the

The patent of the present invention solves the above technical problems through the following technical solutions: a multi-energy medium coupling control system, which is used to provide energy consumption equipment with various energy mediums such as electricity and heat that meet the needs, which includes one or more The multi-energy medium coupling device of the energy hub adopts distributed control based on Multi-Agent. The energy hub contains energy conversion, distribution and storage equipment such as transformers, micro turbines, and gas furnaces. The input of the energy hub includes various media such as electricity and natural gas, and the output meets the electricity and heat of energy-consuming equipment. the

In a specific implementation example of the patent of the present invention, the energy hub contains energy conversion, distribution and storage equipment such as transformers, micro-turbines, and gas furnaces. the

In the specific implementation example of the patent of the present invention, by extending the energy hub, the multi-energy medium coupling control system includes multiple interconnected energy hubs, and each energy hub supplies energy to different areas, forming a distributed functional source structure. the

In the specific implementation example of the patent of the present invention, the multi-energy medium coupling control system adopts a distributed control method based on the MAS (Multi-Agent System) multi-agent system, in which each energy hub is controlled by its own Agent. the

The positive progress effect of the patent of the present invention lies in: the multi-energy medium coupling control system optimizes the combination of various energy supply modes, so that the consumption of limited resources can be minimized on the premise of ensuring the normal energy supply to energy-consuming equipment, and improve its robustness. The redundancy of the components between the input and output of the energy hub is very high, and the energy consumption of the electric load can come directly from the grid or partly from natural gas. Therefore, this configuration can bring two benefits. One is the reliability of energy supply from the perspective of load increase, because it is no longer completely dependent on a single energy network, and the second is to achieve the optimization of energy supply. The energy medium at the input end can be optimally dispatched according to cost, emission, feasibility and other criteria. the

Description of drawings

Fig. 1 is a schematic structural diagram of a single energy hub in the multi-energy medium coupling control system of the patent of the present invention. the

Fig. 2 is a schematic diagram of a multi-energy medium coupling device with three energy hubs. the

Figure 3 is a schematic diagram of the distributed control of the multi-energy medium coupling device based on the MAS (Multi-Agent System) multi-agent system. the

Detailed ways

The preferred embodiments of the patent of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail. the

The multi-energy medium coupling control system of the patent of the present invention can be used in households, commercial and industrial enterprises, and is used to supply energy to various energy-consuming equipment using multiple energy mediums. Referring to FIG. 1 , only one of the energy hub structures is schematically drawn in the figure. The energy hub device includes an energy hub 10 , a transformer 11 , a micro steam turbine 12 , a combustion furnace 13 , a heat exchanger 14 , an energy medium electricity 15 , natural gas 16 , heat 17 , electricity 18 , and heat 19 . the

The multi-energy medium coupling control system realizes the conversion of one energy medium into another energy medium, and also realizes multi-energy medium and multi-energy output. The energy hub is used to establish a coupling relationship between natural gas and electric energy networks, and to restrict each other, and to establish connections with independent transformers, micro-turbines, gas furnaces and other energy equipment. The multi-energy medium coupling control system includes multiple interconnected energy hubs. Each energy hub supplies energy to different regions, forming a distributed functional source structure. the

The multi-energy medium coupling control system includes three energy hubs as an example. Referring to Figure 2, 202, 205, and 209 are interconnected energy hubs that supply energy to three different areas, and each energy hub consumes electricity and natural gas. To provide energy for electrical and thermal loads, each energy hub includes energy conversion equipment to meet the energy needs of the output loads. The first energy hub 205 is connected with locally produced electric energy 208, including a combustion furnace 206, a transformer 207, the second energy hub 202, including a combustion furnace 201, a transformer 203, a micro steam turbine 204, and the third energy hub 209, including a transformer 210, a micro steam turbine 211, including natural gas 212, is equipped with a C32 compressor 213 and a C31 compressor 214 on its natural gas main pipeline, so that the natural gas flows from the large natural gas network to the surrounding pipelines. It can be seen from Figure 2 that there are multiple energy supply methods to meet the load requirements of electricity and heat. This redundancy increases the reliability of supply, and at the same time, it provides the possibility to optimize energy input using cost, availability, and emissions as criteria. the

The energy system including the multi-energy medium coupling control system includes several interrelated energy hubs. Referring to Figure 3, the system adopts a distributed control method based on the MAS (Multi-Agent System) multi-agent system, and 31 is the multi-energy medium Coupling the server of the control system, the entire large energy network system is divided into three control areas, respectively 34, 35, and 36, where each area (including energy hubs and corresponding network nodes) is controlled by its own Agent, Agent 32 controls area 34, Agent 37 controls area 36, and Agent 33 controls area 35. Each Agent in MAS can modify its own behavior according to the change of the environment, and communicate with other Agents through the network to complete the cooperation, and the Agent can also independently control its own behavior. Agent uses the existing knowledge base and actively obtains external environmental information for continuous learning, so that it has certain reasoning and planning capabilities, can obtain the required information from the environment in real time, and give corresponding decisions according to environmental changes. the

The distributed control of the patent of the present invention can be realized in combination with existing software programming means under existing hardware conditions, so the implementation method thereof will not be described in detail here. the

To sum up, the patented multi-energy medium coupling control system of the present invention can optimize and combine various energy supply modes, make use of their respective characteristics, and make reasonable use of various energy sources, so as to ensure the normal power supply of energy-consuming equipment Consumption of finite resources is minimized and other goals such as cost, emissions and reliability can be met. the

Although the specific implementation manners of the patent of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make changes or modifications to these embodiments without departing from the principle and essence of the patent of the present invention, but these changes and modifications all fall within the protection scope of the present invention. the

Claims (10)

1. a multiple-energy-source medium couples control system, it is for providing various energy medium such as the electricity, heat etc. that satisfy the demands to energy consuming equipment, it comprises the multiple-energy-source medium couples device of one or more energy hinge, adopts the distributed controll based on Multi-Agent.

2. energy hinge is inner changes containing transformer, miniature steam turbine, gas furnace equal energy source, distributes and memory device, and energy hinge input end comprises the medium such as electricity, rock gas, exports the electricity and heat etc. that meet energy consumption equipment.

3. multiple-energy-source medium couples control system as claimed in claim 1, it is characterized in that, the mediums such as electricity, rock gas input from the input end of energy hinge, through the energy conversion of energy hinge, transmission and storage, export electricity and heat etc., meet user's different loads demand.

4. multiple-energy-source medium couples control system as claimed in claim 1, it is characterized in that, energy hinge inside is containing one or more energy conversion, distribution and memory devices such as transformer, miniature steam turbine, gas furnaces, realize a kind of energy medium to be converted to another kind of energy medium, also can realize multiple-energy-source medium multiple-energy-source and export.

5. multiple-energy-source medium couples control system as claimed in claim 1, it is characterized in that, utilize energy hinge, rock gas and electric energy energy network are set up coupled relation, mutual restriction, independently transformer, miniature steam turbine, the conversion of gas furnace equal energy source, distribution and memory device will set up contact, as electricity directly can be obtained by transformer, also rock gas can be utilized to be converted to by miniature steam turbine, and heater can be obtained by combustion furnace and also can be obtained by heat exchanger.

6. the multiple-energy-source medium couples control system as described in claim 1 and 4, it is characterized in that, this multiple-energy-source medium couples control system comprises multiple energy hinge connected each other, and each energy hinge carries out energy supply to different regions, forms a distributed function source structure.

7. the multiple-energy-source medium couples control system as described in claim 1 and 5, it is characterized in that, the energy resource system comprising this multiple-energy-source medium couples control system comprises several energy hinge that is mutually related, this system adopts based on MAS(Multi-Agent System) distributed control method of multi-agent system, wherein each energy hinge by its separately Agent control.

Each Agent in 8.MAS can environmentally change amendment factum, and carries out communicating, having worked in coordination with other Agent by network, and Agent also can independently control self behavior.

9.Agent utilizes existing knowledge base and active obtaining external environment information carries out unceasing study, thus possesses certain reasoning and planning ability, can from environment Real-time Obtaining information needed, and environmentally change provides corresponding decision.

10. the multiple-energy-source medium couples control system as described in claim 1 and 5, it is characterized in that, between the input and output of energy hinge, the redundance of assembly is very high, the energy resource consumption of electric load can directly all from electrical network or partly from rock gas, therefore, this configuration can bring two aspect benefits, one is increase from the reliability of angles of loading energy resource supply, because no longer place one's entire reliance upon single energy network, two is the optimization realizing energy supply, and the energy medium of input end can be optimized scheduling according to cost, discharge, feasibility and other standard.