CN109146314A - Integrated energy system modeling method based on Universal Energy bus - Google Patents
Integrated energy system modeling method based on Universal Energy bus Download PDFInfo
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Abstract
A kind of integrated energy system modeling method based on Universal Energy bus: for given integrated energy system, form of energy, type and the energy stream topological relation in integrated energy system comprising energy device are inputted first, energy stream Rendezvous Point in integrated energy system is classified by form of energy, and establishes corresponding energy bus model；Energy device in integrated energy system is classified by source device model, conversion equipment model, energy storage device model and load model these four models；It is transfer converter model by sorted conversion equipment model conversation；According to the actual energy flow path in the input and output form of energy and integrated energy system of each energy device, sorted source device model, transfer converter model, energy storage device model and load model and energy bus model are attached, integrated energy system Universal Energy bus model is formed.The present invention can be realized the standardization and expansible of integrated energy system modeling.
Description
Technical field
The present invention relates to a kind of integrated energy system modeling methods.More particularly to a kind of based on the comprehensive of Universal Energy bus
Close energy resource system modeling method.
Background technique
Integrated energy system covers the various energy resources forms such as electricity/gas/hot/cold, has broken traditional energy supplying system and has individually advised
It draws, individually designed and independently operated mode, is optimized by the organic coordination and collaboration of the different type energy, be that distribution can be again
The high proportion consumption of the raw energy provides new visual angle and thinking with efficient utilize.
With the continuous improvement of energy the relevant technologies level, energy device type, system involved in integrated energy system
Operational mode and coupling link form even more complex, modeling analysis and optimization Simulation to integrated energy system propose new
Challenge.Therefore, research grasp the generalization of integrated energy system, standardization, expansibleization modeling method, be carry out it is subsequent comprehensive
Close energy resource system correlative study primary premise, to follow-up system planning, operation, assay the problems such as research and discovery
It is of great significance.
Current existing integrated energy system modeling method still has several drawbacks, such as Part Methods spininess is to a certain spy
Determine system individually to be modeled, the model established does not have versatility；Part modeling method only considers the external behavior of system
Namely input-output characteristic, the inside link of system is had ignored, the model established is difficult to embody each inside integrated energy system
Coupling and complementing characteristic between conversion equipment.
And the integrated energy system modeling method based on Universal Energy bus model can each equipment in accurate expression system
Between energy transmission relationship establish the Universal Energy bus mould of extension by using the definition of electric system median generatrix model
Type can effectively realize comprehensive energy system by defining the device models such as source device, conversion equipment, energy storage device and load
The standardization and scalability of construction in a systematic way mould.
Summary of the invention
Has standardization, generalization, expansible comprehensive energy the technical problem to be solved by the invention is to provide a kind of
The integrated energy system modeling method based on Universal Energy bus of system modelling.
The technical scheme adopted by the invention is that: a kind of integrated energy system modeling method based on Universal Energy bus,
Include the following steps:
It 1) first include the energy shape of energy device in input integrated energy system for given integrated energy system
Energy stream Rendezvous Point in integrated energy system is classified by form of energy, and built by formula, type and energy stream topological relation
Found corresponding energy bus model；
2) by the energy device in integrated energy system by source device model, conversion equipment model, energy storage device model with
And load model these four models are classified；
It 3) is transfer converter model by sorted conversion equipment model conversation；
4) according to the actual energy flow path in the input and output form of energy and integrated energy system of each energy device,
By sorted source device model, transfer converter model, energy storage device model and load model and energy bus model
It is attached, forms integrated energy system Universal Energy bus model.
Energy bus model described in step 1) is that the power bus-bar model definition in electric system is extended to comprehensive energy
In the system of source, the form of energy carried is extended into the energy for including in integrated energy system by the electric flux in electric system
Form.
Described in step 2):
(1) source device model: refer to that source device contains only defeated for providing the equipment of energy input to integrated energy system
Out branch；
(2) conversion equipment model: referring to the equipment for realizing that energy is unidirectionally converted inside integrated energy system, and conversion equipment is same
Shi Hanyou inputs branch and output branch, conversion equipment are divided into single-input single-output, single input and multi-output, multiple input single output
And four class equipment of multiple-input and multiple-output；
(3) energy storage device model: refer to the equipment that energy stores are realized inside integrated energy system, the model of energy storage device
Share an input and output branch；
(4) load model: being divided into different types according to energy, and load only contains input branch.
Master pattern is converted by the conversion equipment in integrated energy system described in step 3), is that single input is how defeated
Out, the conversion equipment of multiple input single output and multiple-input and multiple-output is converted into the conversion equipment of single-input single-output and virtual
The combination of bus, the virtual bus are used to indicate that the energy of the topological connection relation in the master pattern of conversion equipment is female
Line model
Integrated energy system modeling method based on Universal Energy bus of the invention is that one kind has standardization, general
Change, the method for expansible integrated energy system modeling.Method of the invention is based on realization integrated energy system modeling method
Standardization, generalization and expansible, comprehensively consider energy in system, device type, topological constraints, it is general by establishing
The integrated energy system model of energy bus-type realizes the standardization and expansible of integrated energy system modeling, is follow-up system
The research of the problems such as Energy Flow Analysis, planning, operation lays the foundation.Method of the invention be suitable for concentrate energy source station, island with
And the modeling of the user classes such as industrial zone or region class integrated energy system, this kind of scene have energy form diversification, for
Energy equipment Relatively centralized, energy source loss influence the features such as smaller.
Detailed description of the invention
Fig. 1 is the flow chart of the integrated energy system modeling method the present invention is based on Universal Energy bus；
Fig. 2 is the standardized model composition figure of integrated energy system conversion equipment in the present invention；
Fig. 3 is the practical integrated energy system energy stream path profile in certain garden；
Fig. 4 is the Universal Energy bus model structure chart established according to the practical integrated energy system in certain garden.
Specific embodiment
Below with reference to embodiment and attached drawing to the integrated energy system modeling method of the invention based on Universal Energy bus
It is described in detail.
As shown in Figure 1, the integrated energy system modeling method of the invention based on Universal Energy bus, including walk as follows
It is rapid:
It 1) first include the energy shape of energy device in input integrated energy system for given integrated energy system
Energy stream Rendezvous Point in integrated energy system is classified by form of energy, and built by formula, type and energy stream topological relation
Found corresponding energy bus model；The energy bus model is to extend to the power bus-bar model definition in electric system
In integrated energy system, the form of energy carried is extended in integrated energy system by the electric flux in electric system includes
Form of energy.
For the present embodiment, the form of energy for including in integrated energy system includes electric, hot, cold and hot water, these four types of
The Rendezvous Point of energy stream can establish four energy bus models, and respectively goddess of lightning's line, hot bus, cold bus and hot water is female
Line.
2) by the energy device in integrated energy system by source device model, conversion equipment model, energy storage device model with
And load model these four models are classified；Wherein:
(1) source device model described in: refer to that source device is only for providing the equipment of energy input to integrated energy system
Containing output branch, the equipment such as external electrical network, photovoltaic power generation, solar water heater are generally included；
(2) the conversion equipment model described in: refer to the equipment for realizing that energy is unidirectionally converted inside integrated energy system, conversion
Equipment contains input branch simultaneously and output branch, conversion equipment are divided into single-input single-output (SISO), single input and multi-output
(SIMO), four class equipment of multiple input single output (MISO) and multiple-input and multiple-output (MIMO)；
(3) the energy storage device model described in: refer to the equipment that energy stores are realized inside integrated energy system, energy storage device
Model share an input and output branch；
(4) load model described in: being divided into different types according to energy, and load only contains input branch.
For the present embodiment, source device model includes external electrical network, photovoltaic generating system and solar water heating system
Model；Conversion equipment model include chiller unit, ice storage unit, earth source heat pump, heat storage electric boiler, heat-exchanger rig with
And the model of domestic hot-water's case；Energy storage device model includes the mould of plumbic acid energy storage, Ice Storage Tank, cold-storage water tank and hot water storage tank
Type, load model include electric load, thermic load, refrigeration duty and the model of hot water load.
It 3) is transfer converter model by sorted conversion equipment model conversation；
Described converts master pattern for the conversion equipment in integrated energy system, is by single input and multi-output, how defeated
Enter conversion equipment and virtual bus that the singly conversion equipment of output and multiple-input and multiple-output is converted into single-input single-output
Combination, the virtual bus are used to indicate that the energy bus mould of the topological connection relation in the master pattern of conversion equipment
Type.
The method for converting master pattern for the conversion equipment in integrated energy system is as shown in table 1:
1 integrated energy system Plays conversion equipment model conversation method of table
For the present embodiment, the conversion equipment model for needing to be standardized include ice storage unit, earth source heat pump,
The model of heat storage electric boiler, as shown in Figure 2.
4) the input and output form of energy of each energy device according to Fig.3, and the practical energy in integrated energy system
Flow path is measured, by sorted source device model, transfer converter model, energy storage device model and load model and energy
Bus model is attached, and forms integrated energy system Universal Energy bus model as shown in Figure 4.
For the present embodiment, energy device model and input and output form of energy in integrated energy system are shown in Table 2:
Energy device model and input and output form of energy in 2 the present embodiment of table
| Energy device | Device model | Input energy form | Export form of energy |
| External electrical network | Source device | —— | Electricity |
| Photovoltaic power generation | Source device | —— | Electricity |
| Solar water heater | Source device | —— | Hot water |
| Chiller unit | Conversion equipment | Electricity | It is cold |
| Ice storage unit | Conversion equipment | Electricity | It is cold |
| Earth source heat pump | Conversion equipment | Electricity | It is hot and cold |
| Heat storage electric boiler | Conversion equipment | Electricity | Heat |
| Heat-exchanger rig | Conversion equipment | It is hot and cold | Hot and cold, hot water |
| Domestic hot-water's case | Conversion equipment | Hot water | Hot water |
| Lead-acid battery | Energy storage device | Electricity | Electricity |
| Ice Storage Tank | Energy storage device | It is cold | It is cold |
| Cold-storage water tank | Energy storage device | It is cold | It is cold |
| Hot water storage tank | Energy storage device | Heat | Heat |
| Electric load | Load | Electricity | —— |
| Thermic load | Load | Heat | —— |
| Refrigeration duty | Load | It is cold | —— |
| Hot water load | Load | Hot water | —— |
According to input and output energy form listed by upper table, the corresponding energy bus of corresponding energy device is connected
It connects, integrated energy system Universal Energy bus model shown in Fig. 3 thus can be obtained.
Claims (4)
1. a kind of integrated energy system modeling method based on Universal Energy bus, which comprises the steps of:
1) for given integrated energy system, the form of energy comprising energy device, class first in input integrated energy system
Type and energy stream topological relation classify the energy stream Rendezvous Point in integrated energy system by form of energy, and foundation pair
The energy bus model answered；
2) energy device in integrated energy system by source device model, conversion equipment model, energy storage device model and is born
These four models of lotus model are classified；
It 3) is transfer converter model by sorted conversion equipment model conversation；
4) according to the actual energy flow path in the input and output form of energy and integrated energy system of each energy device, will divide
Source device model, transfer converter model, energy storage device model and load model and energy bus model after class carry out
Connection forms integrated energy system Universal Energy bus model.
2. the integrated energy system modeling method according to claim 1 based on Universal Energy bus, which is characterized in that step
It is rapid 1) described in energy bus model be by electric system power bus-bar model definition extend in integrated energy system, will
The form of energy carried extends to the form of energy for including in integrated energy system by the electric flux in electric system.
3. the integrated energy system modeling method according to claim 1 based on Universal Energy bus, which is characterized in that step
It is rapid 2) described in:
(1) source device model: refer to that source device contains only output branch for providing the equipment of energy input to integrated energy system
Road；
(2) conversion equipment model: referring to the equipment for realizing that energy is unidirectionally converted inside integrated energy system, and conversion equipment contains simultaneously
Have input branch and output branch, conversion equipment be divided into single-input single-output, single input and multi-output, multiple input single output and
Four class equipment of multiple-input and multiple-output；
(3) energy storage device model: referring to the equipment that energy stores are realized inside integrated energy system, and the model of energy storage device shares
One input and output branch；
(4) load model: being divided into different types according to energy, and load only contains input branch.
4. the integrated energy system modeling method according to claim 1 based on Universal Energy bus, which is characterized in that step
It is rapid 3) described in convert master pattern for the conversion equipment in integrated energy system, be by single input and multi-output, multi input list
The conversion equipment of output and multiple-input and multiple-output is converted into the conversion equipment of single-input single-output and the combination of virtual bus,
The virtual bus is used to indicate that the energy bus model of the topological connection relation in the master pattern of conversion equipment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113159407A (en) * | 2021-04-14 | 2021-07-23 | 北京交通大学 | Multi-energy storage module capacity optimal configuration method based on regional comprehensive energy system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246263A (en) * | 2013-04-22 | 2013-08-14 | 天津大学 | General optimized dispatching strategy for combined supply of cooling, heating and power microgrid system |
| US20170331298A1 (en) * | 2013-09-26 | 2017-11-16 | Wellhead Electric Company, Inc. | Hybrid energy system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113159407A (en) * | 2021-04-14 | 2021-07-23 | 北京交通大学 | Multi-energy storage module capacity optimal configuration method based on regional comprehensive energy system |
| CN113159407B (en) * | 2021-04-14 | 2023-12-19 | 北京交通大学 | Multi-energy storage module capacity optimal configuration method based on regional comprehensive energy system |
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