Potential benefits from participating in day-ahead and regulation markets for CHPs

Gao, Shuang; Jurasz, Jakub; Li, Hailong; Corsetti, Edoardo; Yan, Jinyue

doi:10.1016/j.apenergy.2021.117974

Cited by 16 publications

(5 citation statements)

References 27 publications

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“…There are usually two types of CHP units, back-pressure turbine and extraction condensing turbine [14]. For the former, the heat-to-electricity ratio is constant and the relation between electricity and heat power is linear; for the latter, the heatto-electricity ratio varies in a wide range by pumping rate, with the lower energy efficiency and more flexibility compared with the former.…”

Section: Optimization Constraints (1) Chp Unitmentioning

confidence: 99%

Two-Stage Robust and Economic Scheduling for Electricity-Heat Integrated Energy System under Wind Power Uncertainty

et al. 2021

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As renewable energy increasingly penetrates into electricity-heat integrated energy system (IES), the severe challenges arise for system reliability under uncertain generations. A two-stage approach consisting of pre-scheduling and re-dispatching coordination is introduced for IES under wind power uncertainty. In pre-scheduling coordination framework, with the forecasted wind power, the robust and economic generations and reserves are optimized. In re-dispatching, the coordination of electric generators and combined heat and power (CHP) unit, constrained by the pre-scheduled results, are implemented to absorb the uncertain wind power prediction error. The dynamics of building and heat network is modeled to characterize their inherent thermal storage capability, being utilized in enhancing the flexibility and improving the economics of IES operation; accordingly, the multi-timescale of heating and electric networks is considered in pre-scheduling and re-dispatching coordination. In simulations, it is shown that the approach could improve the economics and robustness of IES under wind power uncertainty by taking advantage of thermal storage properties of building and heat network, and the reserves of electricity and heat are discussed when generators have different inertia constants and ramping rates.

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Section: Optimization Constraints (1) Chp Unitmentioning

confidence: 99%

Two-Stage Robust and Economic Scheduling for Electricity-Heat Integrated Energy System under Wind Power Uncertainty

et al. 2021

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“…Nevertheless studies [7]- [10] emphasize importance of flexibility services provided by EBs. Most efforts of reviewed studies were focused on the electricity dayahead market.…”

Section: Introductionmentioning

confidence: 99%

The Role of Decentralized Electrode Boiler in Ancillary Services and District Heating: a Feasibility Assessment

Gicevskis,

Linkevics

2023

Latvian Journal of Physics and Technical Sciences

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This article evaluates the feasibility of using electrode boiler in grid ancillary services and district heating scenarios. Electrode boilers in the context of electricity grid management can be considered as a relatively new technology. This study assesses the technical and economic viability of electrode boiler by considering various factors such as energy demand, technical feasibility, economic viability, and regulatory market conditions. The simplified mathematical model has been developed for simulation of electrode boiler use for grid services and heat production. The results have shown that electrode boiler have the potential to be a cost-effective solution for heating and grid balancing services in certain scenarios. However, it may not be applicable or economically viable in all situations or regions; thus, further research and development is needed to fully realize their potential.

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“…Flexibility is defined as the ability of the system to adjust to varying supply and demand over time. Towards ensuring flexibility in energy systems with high share of RES, important role goes to combined heat and power plants (CHPP) [2]. They provide both district heating and electricity, and their # This is a paper for the 8 th Applied Energy Symposium -CUE2022, November.…”

Section: Introductionmentioning

confidence: 99%

“…generation is coupled, which limits the flexibility in operation. Common practice nowadays is to implement thermal energy storage (TES) system with CHPP, which allows for decoupling of heat and electricity generation to some extent [2].…”

Section: Introductionmentioning

confidence: 99%

Dynamic model for large scale hot water storage tank

Milan¹,

Zlatkovikj²,

Li³

et al. 2023

Preprint

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Due to the growing share of intermittent renewable energy sources (RES), the requirement for flexibility in the energy system is increasing to balance the generation and demand of electricity. It has been well recognized that Combined heat and power plants (CHPs) can contribute towards improved flexibility in the energy system. Thermal energy storage (TES), using hot water as working fluid, is a commonly integrated in CHPs, which allows for decoupling of heat and electricity generation. It has been verified that proper control of the operation of TES can improve the flexibility provided by CHP. The development of advanced control system relies on accurate dynamic modeling of TES. In this work, a onedimension (1D) dynamic model for large scale TES is developed in Dymola, based on mass and energy balances. It is validated against the operational data from a real CHP plant. Results show that the model can capture the dynamic variation in the operation of the TES energy content with maximum deviations of 6.5% from the maximum value.

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Potential benefits from participating in day-ahead and regulation markets for CHPs

Cited by 16 publications

References 27 publications

Two-Stage Robust and Economic Scheduling for Electricity-Heat Integrated Energy System under Wind Power Uncertainty

Two-Stage Robust and Economic Scheduling for Electricity-Heat Integrated Energy System under Wind Power Uncertainty

The Role of Decentralized Electrode Boiler in Ancillary Services and District Heating: a Feasibility Assessment

Dynamic model for large scale hot water storage tank

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