Low-carbon optimal dispatch of integrated energy system considering the operation of oxy-fuel combustion coupled with power-to-gas and hydrogen-doped gas equipment

Yun, Yunyun; Zhang, Dahai; Yang, Shengchun; Li, Yaping; Yan, Jiahao

doi:10.1016/j.energy.2023.129127

Cited by 14 publications

(5 citation statements)

References 33 publications

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“…In this paper, we consider the IDR to include electric loads and thermal loads. Modeling the compensation cost of the demand response using electricity load as an example, the total cost of demand response compensation is shown in Equation (27).…”

Section: Demand Response Costmentioning

confidence: 99%

“…In practice, people do not strictly limit the operating cost to the minimum but consider setting it to be less than a certain value or controlling it within a certain interval when the regulating power is needed by the UESS's operator. Meanwhile, in response to the carbon peaking by 2030 and carbon neutrality by 2060 proposed by China's government, CO 2 emissions should also be considered [27][28][29]. With the progress of various detection technologies, especially the intelligent and low-cost monitoring technology for different parameters such as temperature [30,31], the emissions of CO 2 can be well measured and promote the control of CO 2 further.…”

Section: Introductionmentioning

confidence: 99%

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Adjustable Capability Evaluation of Integrated Energy Systems Considering Demand Response and Economic Constraints

Li,

Shi

et al. 2023

Energies

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The coupling between multiple energy sources such as electricity, gas, and heat is strengthened in an integrated energy system (IES), and this, in turn, improves the operational flexibility of the IES. As an upper-level energy supply system, an IES can play a role as virtual energy storage, which can provide regulating power to smooth out the volatility from large-scale renewable energy generation. The establishment of an aggregating virtual energy storage model for IESs has become an important issue. Under this background, a multi-objective optimization-based adjustable capacity evaluation method is proposed in this paper. Firstly, the mathematical model of an IES considering the coupling of multiple kinds of energy forms is proposed. Then, an aggregating model considering demand response and economic constraints is established to demonstrate the adjustable capacity of the IES. In addition, multi-objective optimization is used to identify parameters in the proposed model, and the normal boundary intersection (NBI) method is used to solve the problem. Finally, a simulation example is provided to verify the effectiveness and feasibility of the proposed method. The external energy demand boundary of the IES can be modeled as virtual energy storage, and the coupling relations of electricity and gas can be presented. Case studies demonstrate that economic constraints narrow the adjustable capacity of the IES while the demand response extends it.

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Section: Demand Response Costmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adjustable Capability Evaluation of Integrated Energy Systems Considering Demand Response and Economic Constraints

Li,

Shi

et al. 2023

Energies

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“…Furthermore, as systems' operators and end users pay more and more attention to energy conservation, there have been more studies devoted to increasing the resilience of independent IES [13], which lays the foundation for the following RIES DR, and demand response (DR) technology is becoming increasingly relevant. DR contributes to peak shaving and load shifting, smoothing the load curve, and reducing both the system's costs and the retailer's risks, as widely documented in power system applications [14]. The DR mechanism is typically bifurcated into price-based and incentive-based responses [15,16], each playing a strategic role in energy management and the system's efficiency.…”

Section: Introductionmentioning

confidence: 99%

Operational Optimization of Regional Integrated Energy Systems with Heat Pumps and Hydrogen Renewable Energy under Integrated Demand Response

Duan,

Feng,

Zhao

et al. 2024

Sustainability

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A regional integrated energy system (RIES), synergizing multiple energy forms, is pivotal for enhancing renewable energy use and mitigating the greenhouse effect. Considering that the equipment of the current regional comprehensive energy system is relatively simple, there is a coupling relationship linking power generation, refrigeration, and heating in the cogeneration system, which is complex and cannot directly meet various load demands. This article proposes a RIES optimization model for bottom-source heat pumps and hydrogen storage systems in the context of comprehensive demand response. First, P2G electric hydrogen production technology was introduced into RIES to give full play to the high efficiency advantages of hydrogen energy storage system, and the adjustable thermoelectric ratio of the HFC was considered. The HFC could adjust its own thermoelectric ratio according to the system load and unit output. Second, through the ground-source heat pump’s cleaning efficiency function, further separation and cooling could be achieved. The heat and electrical output of RIES improved the operating efficiency of the system. Thirdly, a comprehensive demand response model for heating, cooling, and electricity was established to enable users to reasonably adjust their own energy use strategies to promote the rational distribution of energy in the system. The model integrates power-to-gas (P2G) technology, leveraging the tunable thermoelectric ratio of a hydrogen fuel cell (HFC) to optimize the generation of electricity and heat while maximizing the efficiency of the hydrogen storage system. Empirical analysis substantiated the proposed RIES model’s effectiveness and economic benefits when integrating ground-source HP and electric hydrogen production with IDR. Compared with the original model, the daily operating cost of the proposed model was reduced by RMB 1884.16.

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“…Ref. [15] proposed a coupled OEC-P2G model in which the P2G process provides high-purity oxygen to the OEC plant to expand the oxygen source, and the OEC plant provides the reaction feedstock for the P2G plant, with the actual carbon emission at only 35.08% of the carbon allowance. However, natural gas is not a zero-carbon fuel, and the carbon dioxide produced from its combustion still requires specialized treatment.…”

Section: Introductionmentioning

confidence: 99%

Low-Carbon Economic Dispatch of Virtual Power Plants Considering the Combined Operation of Oxygen-Enriched Combustion and Power-to-Ammonia

He,

Mao,

Huang

et al. 2024

Sustainability

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In order to achieve sustainable development, China has proposed to “strive to peak carbon dioxide emissions by 2030 and strive to achieve carbon neutrality by 2060”. Virtual power plants (VPPs) are an effective means to achieve carbon neutrality goals. In order to improve the economy and low-carbon performance of virtual power plants, this paper proposes a low-carbon economic optimization dispatching model considering the combined operation of oxygen-enriched combustion (OEC) and electricity-to-ammonia (P2A). Firstly, the mechanism of the combined operation of OEC and P2A is proposed. The oxygen-enriched combustion technology can reduce the carbon emissions of the system and enhance the flexibility of the system operation; P2A can effectively consume renewable energy and improve the energy utilization rate. The by-product of the P2A process, oxygen, is the raw material needed for oxygen-enriched combustion, which reflects the complementary nature of the OEC and P2A.Then, an optimal dispatching model is established with the objective function of minimizing the total cost. Finally, the validity of the proposed model is verified by comparing and analyzing the simulation results of five different models. After the introduction of the combined operation of OEC and P2A, the total cost of the system decreases by 10.95%, and the carbon emission decreases by 34.79%.

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Low-carbon optimal dispatch of integrated energy system considering the operation of oxy-fuel combustion coupled with power-to-gas and hydrogen-doped gas equipment

Cited by 14 publications

References 33 publications

Adjustable Capability Evaluation of Integrated Energy Systems Considering Demand Response and Economic Constraints

Adjustable Capability Evaluation of Integrated Energy Systems Considering Demand Response and Economic Constraints

Operational Optimization of Regional Integrated Energy Systems with Heat Pumps and Hydrogen Renewable Energy under Integrated Demand Response

Low-Carbon Economic Dispatch of Virtual Power Plants Considering the Combined Operation of Oxygen-Enriched Combustion and Power-to-Ammonia

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