Journal Article

Low carbon economic dispatch of integrated energy system based on coupled operation of OCPP-P2G-CHP

Yang, Yukun, Ma, Jingjing, Lv, Can, Liu, Fan, Huang, Wentao, He, Jun

2025

Overview

In the context of the “double carbon” initiative, the exploration of strategies for energy conservation and emission reduction through both policy and technological approaches has emerged as a significant area of contemporary research. Based on this, a low-carbon economic dispatch model of the integrated energy system (IES) including oxygen-enriched combustion power plant (OCPP), two-stage power-to-gas (P2G), and combined heat and power (CHP) units is constructed. The objective of the model is to optimize total operational expenditures while simultaneously improving carbon resource recovery and mitigating emissions. Notable advancements encompass the transformation of traditional thermal power units into OCPP, the formulation of mathematical models for OCPP, the implementation of two-stage P2G systems, and CHP systems, as well as the incorporation of a demand response (DR) mechanism. The findings from the simulation demonstrate that the OCPP-P2G-CHP integrated system exhibits a marked enhancement in carbon capture efficiency when juxtaposed with conventional systems. Additionally, it results in a 7.8% reduction in overall costs and a 30.2% decrease in carbon emissions. This research substantiates the viability and innovative nature of the proposed model, underscoring its potential for scalable application within industrial and urban energy networks.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Alternative energy sources / Carbon / Carbon content / Carbon emissions / Carbon sequestration / Clean technology / Coal-fired power plants / Cogeneration / Cogeneration power plants / Conservation of Energy Resources - economics / Conservation of Energy Resources - methods / Costs / Design / Economics / Efficiency / Emissions / Emissions control / Energy conservation / Energy consumption / Energy management / Energy use / Engineering and Technology / Expenditures / Flexibility / Fuel cells / Gases / Hydrogen / Industrial plant emissions / Integrated energy systems / Mathematical models / Methods / Models, Theoretical / Optimization / Oxygen - chemistry / Oxygen enrichment / Physical Sciences / Power dispatch / Power plants / Power Plants - economics / Power-to-gas / Renewable resources / Resource recovery / Scheduling / Thermal power / Thermal power plants / Thermal transformations / Wind power