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Model selection method for operation mode based on physical characteristics of CCHP system

A technology of operation mode and physical characteristics, applied in the field of selection of operation mode based on the physical characteristics of CCHP system, can solve the problems of no power market analysis, few evaluation methods, and no consideration of power market operation needs, etc.

Inactive Publication Date: 2020-04-17
STATE GRID SICHUAN ECONOMIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few existing evaluation methods that specifically fit the status quo of the CCHP system, and the existing methods do not take into account its specific operational needs in the power market
Moreover, the existing economic evaluation methods of CCHP systems do not analyze from the perspective of each power market participant

Method used

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  • Model selection method for operation mode based on physical characteristics of CCHP system
  • Model selection method for operation mode based on physical characteristics of CCHP system
  • Model selection method for operation mode based on physical characteristics of CCHP system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Such as figure 1 As shown, a method for selecting the operation mode based on the physical characteristics of the CCHP system, the specific steps include:

[0083] S1. Based on the power grid and natural gas-fueled driving equipment to supply power to users, boiler combustion heat production and heat recovery device recover waste heat generated by driving equipment power generation, use heat exchangers to supply heat to users, and absorption refrigerators convert heat into cooling Construct a specific CCHP system physical model with power constraints and heat constraints corresponding to the commercial building CCHP system model that electric refrigeration equipment supplies cooling to users;

[0084] S2. Obtain carbon dioxide environmental cost, sulfide environmental cost, and nitrogen oxide environmental cost based on the CCHP system physical model, and construct an environmental feasibility index model based on carbon dioxide environmental cost, sulfide environmental...

Embodiment 2

[0094] Such as figure 2 , image 3 As shown, the present invention is a type selection method based on the physical characteristics of the CCHP system to the operation mode. In this type selection method, the selection of the investment and construction mode, operation mode and tariff mode of the CCHP system project can be combined arbitrarily, and the selection of each mode There is no necessary connection between them, but for different user characteristics of cooling, heating, and electrical loads, there must be one or several business models that best meet the user's load needs, so the indicators obtained by the comprehensive evaluation method are the best.

[0095] In this embodiment, two typical business models are used for the analysis and demonstration of the calculation example. Among them, the BOO operation model is a brand-new market-oriented operation model that is being implemented, that is, the enterprise invests and undertakes the design of the project. , Cons...

Embodiment 3

[0097] Such as Figure 4 , Figure 5 As shown, the present invention is a method for selecting the operation mode based on the physical characteristics of the CCHP system. In order to optimize the combination of various business models, a corresponding index evaluation system is established. In this embodiment, the economic feasibility, technical Feasibility, environmental protection feasibility and their subordinate indicators are standardized, and then the weights of nine third-level indicators are obtained according to the entropy weight method, as shown in the table below. Among them, payback period, initial investment, CO 2 Environmental value, SO 2 Environmental value, NO x The coefficients of the five indicators of environmental value are negative, which means that these five indicators are all negative indicators, and the larger the value, the worse the evaluation result.

[0098] Table 1 - Normalized index values

[0099]

[0100] The entropy weight method is ...

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Abstract

The invention discloses a model selection method for an operation mode based on physical characteristics of a CCHP system. The model selection method comprises the following specific steps: S1, constructing a CCHP system physical model based on a commercial building CCHP system model; S2, constructing an environment feasibility index model; S3, obtaining a load value according to the physical model of the CCHP system; S4, according to the load value, constructing a CCHP system capacity model in combination with different operation modes; S5, constructing a technical feasibility index model according to the CCHP system capacity model; s6S6 constructing an economic feasibility index model according to the business model; S7, constructing a scheme feasibility index model according to the economic feasibility index, the technical feasibility index and the environment feasibility index; S8, obtaining scheme feasibility indexes T of different business modes; S9, taking the maximum scheme feasibility index T as the optimal operation mode; and S10, respectively constructing a user side benefit model, a project undertaker benefit model and a power grid company benefit model based on the optimal operation mode.

Description

technical field [0001] The invention relates to a method for selecting an investment model, in particular to a method for selecting an operation model based on the physical characteristics of a CCHP system. Background technique [0002] my country has successively proposed a series of distributed clean energy concepts, among which is the CCHP system fueled by natural gas. Due to the high efficiency, energy saving and environmental protection utilization characteristics of the CCHP system, it continues to develop in my country. [0003] Combined cooling, heating and power supply system CCHP refers to a system that interconnects cooling, heating and power supply through the cascaded utilization of combustion heat of different qualities of natural gas - a gas turbine or internal combustion engine that uses natural gas as energy to generate electricity, and then utilizes waste heat, through heat exchange Heating by heat exchangers and refrigeration by absorption refrigerators, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06315G06Q10/0639G06Q50/06
Inventor 任志超王晞汪伟叶强陈礼频徐浩王海燕马瑞光
Owner STATE GRID SICHUAN ECONOMIC RES INST