Optimization method of integrated energy system based on optimal double constraints

Abstract

The present invention relates to an integrated energy system oriented to multi-terminal demands of electricity, cooling, and heat, in particular, an optimization method for an integrated energy system based on the optimal dual constraint conditions of environmental emission and heat exergy utilization: based on the constituent elements of the integrated energy system: Gas-fired combined cooling, heating and power systems, gas-fired boilers, electric refrigerators, and photovoltaic + energy storage systems, according to each element of the system, through calculation methods such as carbon emission accounting methods based on terminal consumption, various greenhouse gas (carbon) emissions, The benefits of environmental tax savings, as well as the green certificates of renewable energy and the market value of the energy use rights of high-efficiency gas energy stations are all standardized into comparable prices; Through the simulation calculation and verification of the total amount of greenhouse gas and pollutant emissions, the composition of each subsystem of the comprehensive energy system corresponding to the minimum amount of greenhouse gas and pollutant emissions is finally selected. The advantage lies in: aiming at the clean and high-efficiency characteristics of the integrated energy system, it can realize the optimization of system matching degree.

Description

technical field [0001] The invention relates to an integrated energy system oriented to multi-terminal demands of electricity, cooling, and heat, in particular to an optimization method for an integrated energy system based on the optimal dual constraint conditions of environmental emission and heat exergy utilization. Background technique [0002] An integrated energy system is an energy-using system that is oriented to multiple terminal energy demands of electricity, cooling, and heating. At present, energy system planning and design methods are mostly independent of each other, that is, energy systems such as electricity, heating, cooling, and energy storage are planned independently. Design, the overall energy utilization efficiency is low after system integration. In the prior art, there are various evaluation methods for the comprehensive energy system, mainly by converting multiple factors or evaluation indicators of the energy system into comprehensive indicators tha...

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Problems solved by technology

[0003] However, under the increasingly prominent environmental protection requirements, the integrated energy system has less consideration for the impact of environmental emission efficiency, and the economic impact in this regard has not been included in the comprehensive comparison when planning the integrated energy system.

Therefore, existing technologies (methods) cannot comprehensively and accurately quantify the clean and high-efficiency characteristics of the integrated energy system. On the one hand, the economics of the integrated energy system and the traditional decentralized energy supply system cannot be fully reflected, which seriously affects the promotion of the integrated energy system

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