Low-carbon Operation of Combined Heat and Power Integrated Plants Based on Solar-assisted Carbon Capture

Guo, Xusheng; Lou, Suhua; Wu, Yaowu; Wang, Yongcan

doi:10.35833/mpce.2021.000046

Cited by 29 publications

(13 citation statements)

References 31 publications

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“…After the installation of carbon capture devices in ordinary CHP, the total output of the carbon capture unit is increased by the carbon capture energy power on top of the net output of the unit. The carbon capture energy power is composed of fixed energy consumption and operating energy consumption [17], and the operating energy consumption is composed of resolved energy consumption and compression energy consumption [18]. The carbon capture power plant model is thus established, as shown in Eq.…”

Section: Mechanistic Analysis and Modelling Of Carbon Capture Power P...mentioning

confidence: 99%

Low-Carbon Dispatch of an Integrated Energy System Considering Confidence Intervals for Renewable Energy Generation

Shi,

Li,

Fan

et al. 2024

ENERGY

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Addressing the insufficiency in down-regulation leeway within integrated energy systems stemming from the erratic and volatile nature of wind and solar renewable energy generation, this study focuses on formulating a coordinated strategy involving the carbon capture unit of the integrated energy system and the resources on the load storage side. A scheduling model is devised that takes into account the confidence interval associated with renewable energy generation, with the overarching goal of optimizing the system for low-carbon operation. To begin with, an in-depth analysis is conducted on the temporal energy-shifting attributes and the low-carbon modulation mechanisms exhibited by the source-side carbon capture power plant within the context of integrated and adaptable operational paradigms. Drawing from this analysis, a model is devised to represent the adjustable resources on the charge-storage side, predicated on the principles of electro-thermal coupling within the energy system. Subsequently, the dissimilarities in the confidence intervals of renewable energy generation are considered, leading to the proposition of a flexible upper threshold for the confidence interval. Building on this, a low-carbon dispatch model is established for the integrated energy system, factoring in the margin allowed by the adjustable resources. In the final phase, a simulation is performed on a regional electric heating integrated energy system. This simulation seeks to assess the impact of source-load-storage coordination on the system's low-carbon operation across various scenarios of reduction margin reserves. The findings underscore that the proactive scheduling model incorporating confidence interval considerations for reduction margin reserves effectively mitigates the uncertainties tied to renewable energy generation. Through harmonized orchestration of source, load, and storage elements, it expands the utilization scope for renewable energy, safeguards the economic efficiency of system operations under low-carbon emission conditions, and empirically validates the soundness and efficacy of the proposed approach.

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Section: Mechanistic Analysis and Modelling Of Carbon Capture Power P...mentioning

confidence: 99%

Low-Carbon Dispatch of an Integrated Energy System Considering Confidence Intervals for Renewable Energy Generation

Shi,

Li,

Fan

et al. 2024

ENERGY

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“…The power-to-hydrogen model and seasonal hydrogen storage model were proposed in [9] to deal with the optimal planning of an IES. Guo et al [10] studied the low-carbon operation method of integrated plants based on carbon capture units. Guo et al [11] proposed a low-carbon planning method for an integrated energy station considering combined P2G and gas-fired units equipped with carbon capture systems.…”

Section: Introductionmentioning

confidence: 99%

Low-Carbon-Oriented Capacity Optimization Method for Electric–Thermal Integrated Energy System Considering Construction Time Sequence and Uncertainty

Wang,

Zhao,

Huang

2024

Processes

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The interdependence of various energy forms and flexible cooperative operation between different units in an integrated energy system (IES) are essential for carbon emission reduction. To address the planning problem of an electric–thermal integrated energy system under low-carbon conditions and to fully consider the low carbon and construction sequence of the integrated energy system, a low-carbon-oriented capacity optimization method for the electric–thermal integrated energy system that considers construction time sequence (CTS) and uncertainty is proposed. A calculation model for the carbon transaction cost under the ladder carbon trading mechanism was constructed, and a multi-stage planning model of the integrated energy system was established with the minimum life cycle cost, considering carbon transaction cost as the objective function, to make the optimal decision on equipment configuration in each planning stage. Finally, a case study was considered to verify the advantages of the proposed capacity optimization method in terms of economy and environmental friendliness through a comparative analysis of different planning cases. Simulation results show that, compared with the scenario of completing planning at the beginning of the life cycle at one time, the proposed low-carbon-oriented capacity optimization method that considers construction time sequence and uncertainty can not only reduce the cost of the integrated energy system, but also help to enhance renewable energy utilization and reduce the system’s carbon emissions; the total cost of phased planning is reduced by 11.91% compared to the total cost of one-time planning at the beginning of the year.

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“…Integrated electricity-gas system (IEGS) is a kind of integrated energy system, which can consolidate primary energy sources such as coal, oil, natural gas and renewable energy sources such as wind and photovoltaic in a certain region by using advanced physical information technology and innovative management mode [5]. It realizes coordinated planning, optimized operation, collaborative management, interactive response and complementary mutual benefit between multiple heterogeneous energy subsystems [6].…”

Section: Introductionmentioning

confidence: 99%

Low-Carbon Economic Dispatch of Integrated Electricity-Gas Energy System Considering Carbon Capture, Utilization and Storage

Liu¹,

Li²,

Tian

et al. 2023

IEEE Access

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With the rapid development of modern industry, while improving people's living standards, the over-exploitation of coal, oil and natural gas has led to a shortage of fossil energy, global warming and an increasingly serious deterioration of the ecological environment. To mitigate the greenhouse effect caused by excessive carbon emissions, the vigorous development of integrated electricity-gas system (IEGS) dominated by clean energy is the future trend of sustainable development of energy systems. In this paper, a bi-level optimal scheduling model is proposed for an IEGS considering carbon capture, utilization and storage (CCUS), and the ladder carbon trading mechanism is introduced to convert carbon emissions into economic benefits. The upper model is an optimal distribution model of natural gas network, and the lower model is a day-ahead economic dispatch model of power system. Based on the Karush-Kuhn-Tucher (KKT) condition and strong duality theory of the lower model, the bi-level model is transformed into a mixed integer linear programming (MILP), which is solved by calling CPLEX through the Yalmip toolbox of the Matlab platform. Finally, the reasonableness and validity of the model are verified by three arithmetic simulations. The results show that the proposed bi-level model for low-carbon economic dispatch of IEGS considering CCUS can effectively reduce the operating costs and carbon emissions of the system.INDEX TERMS Low-carbon electricity, integrated electricity-gas system (IEGS), economic dispatch, carbon capture, utilization and storage (CCUS), mixed integer linear programming (MILP).

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Low-carbon Operation of Combined Heat and Power Integrated Plants Based on Solar-assisted Carbon Capture

Cited by 29 publications

References 31 publications

Low-Carbon Dispatch of an Integrated Energy System Considering Confidence Intervals for Renewable Energy Generation

Low-Carbon Dispatch of an Integrated Energy System Considering Confidence Intervals for Renewable Energy Generation

Low-Carbon-Oriented Capacity Optimization Method for Electric–Thermal Integrated Energy System Considering Construction Time Sequence and Uncertainty

Low-Carbon Economic Dispatch of Integrated Electricity-Gas Energy System Considering Carbon Capture, Utilization and Storage

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