Energy management optimization of a hybrid power production unit based renewable energies

Abdelkafi, Achraf; Krichen, Lotfi

doi:10.1016/j.ijepes.2014.04.012

Cited by 28 publications

(11 citation statements)

References 20 publications

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“…However, this technology is characterized by high production costs and greenhouse gas (GHG) emissions [2]. In addition, the exploitation of diesel engines in these remote areas is not only sensible to fuel prices fluctuations but preponderantly to fuel transportation costs [3,4]. In this context, the development of power generation systems based on renewable energies from local sources is an effective solution to overcome the aforementioned barriers.…”

Section: Introductionmentioning

confidence: 99%

Computer Model for a Wind–Diesel Hybrid System with Compressed Air Energy Storage

et al. 2019

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A hybrid system combines two or more energy sources as an integrated unit to generate electricity. The nature of the sources associated varies between renewable and/or non-renewable energies. Such systems are becoming popular as stand-alone power systems to provide electricity, especially in off grid remote areas where diesel generators act as primary energy source. Wind–diesel systems are among the preferred solutions for new installations, as well as the upgrade of existing ones. However, efforts to address technical challenges towards energy transformation for sustainable development are multiple. The use of energy storage systems is a solution to reduce energy costs and environmental impacts. Indeed, efficient and distributed storage not only allows the electricity grid greater flexibility in the face of demand variations and greater robustness thanks to the decentralization of energy sources, it also offers a solution to increase the use of intermittent renewables in the energy mix. Among different technologies for electrical energy storage, compressed air energy storage is proven to achieve high wind energy penetration and optimal operation of diesel generators. This paper presents a computer model for performance evaluation of a wind–diesel hybrid system with compressed air energy storage. The model has been validated by comparing the results of a wind–diesel case study against those obtained using HOMER software (National Renewable Energy Laboratory, Golden, CO, United States). Different operation modes of the hybrid system are then explored. The impact of hybridization on time and frequency of operation for each power source, fuel consumption and energy dissipation has been determined. Recommendations are made on the choice of key parameters for system optimization.

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Section: Introductionmentioning

confidence: 99%

Computer Model for a Wind–Diesel Hybrid System with Compressed Air Energy Storage

et al. 2019

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“…Relevant theoretical research and demonstration project application results show that hydrogen production by water electrolysis, if combined with the renewable energy power generation such as solar energy or wind power, can damp the fluctuation and enhance the schedulability, which provides an effective solution to the grid‐connection and consumption of the fluctuating green energy sources such as solar energy and wind power. It is currently a research hotspot …”

Section: Introductionmentioning

confidence: 99%

Experimental study on the external electrical thermal and dynamic power characteristics of alkaline water electrolyzer

Shen

Zhang

et al. 2018

Int J Energy Res

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Summary As hydrogen production with a water electrolyzer is an effective way for renewable energy consumption, understanding the external electrical characteristics of water electrolyzer is of great significance for the modeling and simulation, system configuration, and control strategy of the system for hydrogen production by renewable energy. However, there are relatively fewer studies in this area. This paper presents the establishment of an experimental platform to conduct an experimental study on the static and dynamic voltage‐current characteristics and analyze the adjustability of the electric power of the traditional alkaline water electrolyzer, the relationship between the electrical characteristics and the electrolyte temperature, and operating point of the alkaline water electrolyzer. In addition, the mathematical fitting problem of the electrical characteristics of the alkaline water electrolyzer is discussed. The work could supply a reference to alkaline water electrolyzer intergrated application in renewable energy.

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“…The principal objectives when selecting a topology include increasing efficiency, increasing reliability, reducing the output current and voltage harmonics, decreasing the size, and reducing the cost [2]. The use of a storage system with a fast dynamic is necessary for many applications; the supercapacitor (SC) is a device that ensures the efficient management between the intermittently generated power and the consumer demand and increases the performance of the DPGSs [3]. The SC has a higher power density, longer life cycle, and higher discharging/charging efficiency than a battery.…”

Section: Introductionmentioning

confidence: 99%

“…Distributed generation systems require control that permits the optimal management of the energy generated. Therefore, with the new simplified model of a basic switching cell for SCBs proposed here, it can feasibly be used in more complex systems such as smart grids [24][25][26] and hybrid power production units [3,27].…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of a Switching Matrix Applied in a Bank of Supercapacitors

et al. 2017

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Distributed power generation systems (DPGSs) integrate power sources that tend to be smaller than the typical utility scale, such as for renewable energy sources and other applications. Storage systems that incorporate supercapacitors (SCs) have been proposed to extend the life of batteries and to increase the power capacity of the DPGSs, guaranteeing maximum efficiency. The extraction of energy in SCs is more demanding than in the case of batteries; when SCs have delivered only 75% of their energy, their voltage has already decreased to 50%. Beyond this value, the banks fail to meet the requirements demanded by loads that require a minimum voltage to operate correctly, leaving 25% of the energy unused, thereby limiting the deep charge/discharge cycles that occur. This paper presents a model of a switching matrix applied in a bank of SCs. The model allows the use of a simpler circuit to achieve a large number of serial/parallel-configuration connections (levels), improving the utilization of energy to obtain deep discharge cycles in each SC; therefore, by increasing the average energy extracted from each SC, it extends the power delivery time in the storage bank. The efficiency was verified by experimental results obtained using a bank of six SCs.

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Energy management optimization of a hybrid power production unit based renewable energies

Cited by 28 publications

References 20 publications

Computer Model for a Wind–Diesel Hybrid System with Compressed Air Energy Storage

Computer Model for a Wind–Diesel Hybrid System with Compressed Air Energy Storage

Experimental study on the external electrical thermal and dynamic power characteristics of alkaline water electrolyzer

Experimental Evaluation of a Switching Matrix Applied in a Bank of Supercapacitors

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