Optimal Wind Reversible Hydro Offering Strategies for Midterm Planning

Nieta, Agustín A. Sánchez de la; Contreras, Javier; Muñoz, José I.; Catalào, João P. S.

doi:10.1109/tste.2015.2437974

Cited by 15 publications

(5 citation statements)

References 23 publications

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“…Junhui Zhao, Korey Graves, Caisheng Wang [6] discussed and perform a practical on solar, pumped hydro and battery system to have more efficient hybrid system. A control strategy was suggested such that when battery was failed to supply power to load then hydro system comes in to existence to stable the whole system and maintains demand and supply chain.. Agustín A. Sánchez de la Nieta, Javier Contreras [7] A coordinated strategy between wind and reversible hydro units for the midterm planning that reduces the imbalance of wind power and improves system efficiency is proposed. A stochastic mixed integer linear model is used, which maximizes the joint profit of wind and hydro units.…”

Section: Literature Surveymentioning

confidence: 99%

Modelling and Analysis of Pumped Hydro Storage System Integrated With Solar and Wind Renewables

2023

IRJMETS

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Sustainable low-carbon energy is much in demand which emphasize the untapped potential of Renewable Energy sources. Still most of the developing countries have Energy crises which block the nation development. These crises can be overcome by using Hybrid renewable energy sources. The Power output of these Renewable Energy Resources fluctuates widely as weather pattern changes. This variable output can lead to voltage and frequency fluctuations, which adversely affect grid reliability and stability. Bulk Storage can support the development and optimal integration of Renewable Energy Resources. This paper deals with the Hydro pumped energy system using a Doubly Fed Induction Generator (DFIG) that can be an Efficient and Effective Energy Storage System for Renewable Sources for those rural areas which are away from the Grid system.

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Section: Literature Surveymentioning

confidence: 99%

Modelling and Analysis of Pumped Hydro Storage System Integrated With Solar and Wind Renewables

2023

IRJMETS

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“…Equations (14) and (15) represent the running state of CHP with state variables. The constraints of thermal load are shown in Equations (16) and (17). Equation (18) represents the limits of CHP output, which are subject to commitment status and operating characteristics.…”

Section: The Model Of Chpmentioning

confidence: 99%

“…A stochastic day-ahead optimal strategy for a wind-hydro system was presented by Biswas [13] considering the risk of the system. References [14][15][16][17] studied the models of the wind-hydro hybrid system to reduce the cost of imbalances. Compared with renewable resources, combined heat and power (CHP) systems are highly controllable and have quite quick rates.…”

Section: Introductionmentioning

confidence: 99%

“…CHP systems can be optimized based on different optimization criteria, such as energy savings, cost reduction, minimum environmental impact, or a combination of all of these [16]. Several methods and criteria have been proposed in the literature for optimization of the size and operation of CHP systems [17][18][19][20][21]. References [22,23] proposed deterministic optimization models, while References [24][25][26][27] presented stochastic programming models of CHP systems due to their ability to approach various uncertainties in CHP system operation.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Scheduling of Hydro–PV–Wind Hybrid System Considering CHP and BESS Coordination

2019

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Coordination of a hydropower, combined heat and power (CHP), and battery energy storage system (BESS) with multiple renewable energy sources (RES) can effectively reduce the adverse effects of large-scale renewable energy integration in power systems. This paper proposes a concept of a renewable-based hybrid energy system and puts forward an optimal scheduling model of this system, taking into account the cost of operation and risk. An optimization method is proposed based on Latin hypercube sampling, scene reduction, and piecewise linearization. Firstly, a large number of samples were generated with the Latin hypercube sampling method according to the uncertainties, including the renewable resources availability, the load demand, and the risk aversion coefficients, and the generated samples were reduced with a scene reduction method. Secondly, the piecewise linearization method was applied to convert nonlinear constraints into linear to obtain the best results of each scene. Finally, the performance of the proposed model and method was evaluated based on case studies with real-life data. Results showed that the renewable-based hybrid system can not only reduce the intermittent and volatility of renewable resources but also ensure the smooth of tie-line power as much as possible. The proposed model and method are universal, feasible, and effective.

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“…It also opens the door for frequency control in pump mode. This makes it a natural complement for large-scale RESs [5], [6]. In addition, enhanced grid ancillary services capabilities are provided to the plant owners, which see additional revenue schemes and streams.…”

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confidence: 99%

World's First Fully Rated Direct ac/ac MMC for Variable-Speed Pumped-Storage Hydropower Plants

Christe¹,

Faulstich²,

Vasiladiotis³

et al. 2023

IEEE Trans. Ind. Electron.

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This article presents in-depth insights about the development and successful introduction in the field of the first direct ac/ac modular multilevel converter (MMC) as static frequency converter (SFC) for a converter-fed synchronous machine (CFSM) variable-speed pumped-storage hydropower plants (PSHPs). Thanks to a fully rated SFC, the grid dynamics are completely decoupled from the machine dynamics, enabling a straightforward variable-speed operation with high torque over the entire speed range, starting from standstill. Over the whole speed range, the synchronous machine (SM) can be controlled at unity power factor, resulting in a smaller machine compared to a fixed-speed PSHP. The pump start without water blow-down in the turbine chamber means faster and simpler mode transition between turbine and pump operation. Thanks to the wide variable-speed range, the hydraulic efficiency of the turbine can be finely optimized. This results in increased partial-load efficiency and never seen cycle efficiency numbers. The possibility to provide balance energy also in pump operation offers great advantages to the plant's owner. A comprehensive measurement set acquired during the commissioning of the Malta Oberstufe plant in Austria asserts the suitability of a direct ac/ac MMC as SFC for a CFSM variable-speed PSHP.

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Optimal Wind Reversible Hydro Offering Strategies for Midterm Planning

Cited by 15 publications

References 23 publications

Modelling and Analysis of Pumped Hydro Storage System Integrated With Solar and Wind Renewables

Modelling and Analysis of Pumped Hydro Storage System Integrated With Solar and Wind Renewables

Optimal Scheduling of Hydro–PV–Wind Hybrid System Considering CHP and BESS Coordination

World's First Fully Rated Direct ac/ac MMC for Variable-Speed Pumped-Storage Hydropower Plants

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