| With the proposal of the national "dual carbon" policy,the large-scale integrated energy system(IES)with wind and solar as the main energy structure will be the main direction in the future.The intermittency and uncertainty of wind and solar energy are an important factor restricting the development of clean and green energy,promoting the improvement of energy structure,and reducing carbon emissions of the energy system.In order to promote the consumption of renewable energy by IES,this paper takes into account the economic and environmental benefits,and studies the optimal scheduling of IES considering demand response under the carbon-green certificate trading mechanism,and the main work content is as follows:(1)The basic framework of IES containing electricity,hydrogen,and gas is constructed,and the economy and low carbon of the framework are verified.This paper mainly starts from the energy input side,energy conversion side,energy storage side and energy demand side,builds a comprehensive energy basic framework of electricity,hydrogen and gas,and focuses on analyzing the mathematical model of renewable power generation equipment,energy conversion equipment and energy storage equipment.With the goal of minimizing energy purchase costs,operation and maintenance costs,and renewable energy abandonment costs,an optimized scheduling model of electricity-hydrogen-gas IES is constructed,and the economy and environmental protection of the IES framework with power-to-gas and electro-hydrogen interconversion constructed in this paper are verified by setting different scenarios.(2)The optimized dispatch model of electricity-hydrogen-gas IES under the carbon-green certificate joint trading mechanism was constructed.On the basis of the electricity-hydrogen-gas IES optimal scheduling model,the carbon trading mechanism and the green certificate trading mechanism are introduced at the same time,and the electricity-hydrogen-gas IES optimal scheduling model under the carbon-green certificate joint trading mechanism is constructed,and the low-carbon and economic nature of the model is verified by setting different scenarios,and the basic carbon trading mechanism and the ladder carbon trading mechanism,as well as the carbon trading base price and basic price growth rate in the tiered carbon trading mechanism,and the weight of renewable energy consumption responsibility in the green certificate trading mechanism.The impact of green certificate transaction prices on system efficiency.(3)An IES optimal scheduling model considering demand response under the carbon-green certificate joint trading mechanism is constructed.A comprehensive demand response model that can be reduced,transferred,and replaced by various types of loads is established,a compensation mechanism for different response types of loads is introduced,and an IES optimal scheduling model considering demand response under the carbon-green certificate joint trading mechanism is constructed from the perspective of management.By setting up different scenarios,the economic and environmental benefits of the scheduling model considering multiple load demand responses are much higher than those considering the single load demand response,and the changes of load after demand response are analyzed,which can provide a strong reference for the formulation of specific strategies of incentivized demand response. |
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