Low-Carbon Scheduling Optimization of Regional Integrated Energy Systems with CCP-LCDR Considering Bidirectional Flexibility of Source and Load

DENG Junfeng; LI Zhenhua; LI Zhenxing; XU Yanchun; WANG Qiujie

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Low-Carbon Scheduling Optimization of Regional Integrated Energy Systems with CCP-LCDR Considering Bidirectional Flexibility of Source and Load

DENG Junfeng^1,2, LI Zhenhua^1,2, LI Zhenxing¹, XU Yanchun¹, WANG Qiujie¹

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Abstract

[Objective] In order to reduce carbon emissions in the power system and improve the absorption rate of clean energy, with the goal of minimizing total cost, a multi energy coupling regional integrated energy systems (RIES) collaborative optimization method based on combined heat and power (CHP)-carbon capture and storage(CCS)-power-to-gas (P2G) (CCP) coupling mechanism and LCDR (low-carbon demand response, LCDR) is proposed, and a source load bidirectional flexible low-carbon scheduling model is constructed. [Methods] Firstly, a carbon trading green certificate mechanism is introduced on the supply side, and a carbon emission allocation model based on the baseline method is established to incentivize the system to consume renewable energy; Secondly, based on the CHP-CCS-P2G multi energy coupling unit, the system's energy efficiency can be improved through carbon recycling and energy cascade conversion; Then, the load side introduces a low carbon demand response mechanism that takes into account differences in load characteristics, establishing a bidirectional interaction mechanism between electricity and heat loads based on price elasticity matrices to reduce peak to valley load differences. [Results] Relevant simulation experiments were conducted using electricity related data from an administrative district in a city in southern China. The results showed that under the proposed method, the system's carbon emissions and operating costs were reduced, and the wind and solar power consumption capacity was improved. Among them, scenario 6 reduced the operating costs by 5.26% compared to the basic scenario. [Conclusions] The method proposed in the article can form a closed-loop conversion of carbon elements, effectively reduce the output of traditional power generation units, increase the grid power of new energy, and achieve "peak shaving and valley filling" through excitation signals, reducing the carbon emissions of the system and putting it in a low-carbon economic operation state.

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bi-directional flexibility between supply and demand / low-carbon demand response (LCDR) / regional integrated energy system (RIES) / low-carbon economic dispatch

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DENG Junfeng, LI Zhenhua, LI Zhenxing, XU Yanchun, WANG Qiujie. Low-Carbon Scheduling Optimization of Regional Integrated Energy Systems with CCP-LCDR Considering Bidirectional Flexibility of Source and Load[J]. Electric Power Construction. 0

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