Optimal Sizing of a Stand-Alone Hybrid Power System Based on Battery/Hydrogen with an Improved Ant Colony Optimization

Dong, Weiqiang; Li, Yanjun; Xiang, Ji

doi:10.3390/en9100785

Cited by 91 publications

(37 citation statements)

References 37 publications

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“…Besides, these systems can operate as "grid-connected" or "off-grid", i.e., as stand-alone systems, constituting a suitable solution for rural and isolated areas (ranging from suitable HES for remote islands to particular alternatives for buildings) with demand and resource availability [1,2,4,11,16,22]. However, the optimized operation of these systems still poses some challenges.…”

Section: Introductionmentioning

confidence: 99%

“…Contemplating the common PV/Wind (onshore) generation in simultaneous operation mode [23], as well as a traditional energy storage unit (battery), complemented by the addition of a less common small hydro unit with pumping that, in parallel to the battery bank, will provide storage capability. This is a particular feature since few research works have explored HES with both multi-generation units and multi-storage units [22]. The operating strategy proposed in this paper, essentially, can be decomposed into two phases.…”

Section: Introductionmentioning

confidence: 99%

“…pumping that, in parallel to the battery bank, will provide storage capability. This is a particular feature since few research works have explored HES with both multi-generation units and multi-storage units [22]. The operating strategy proposed in this paper, essentially, can be decomposed into two phases.…”

Section: Introductionmentioning

confidence: 99%

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Daily Operation Optimization of a Hybrid Energy System Considering a Short-Term Electricity Price Forecast Scheme

et al. 2019

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The scenario where the renewable generation penetration is steadily on the rise in an increasingly atomized system, with much of the installed capacity “sitting” on a distribution level, is in clear contrast with the “old paradigm” of a natural oligopoly formed by vertical structures. Thereby, the fading of the classical producer–consumer division to a broader prosumer “concept” is fostered. This crucial transition will tackle environmental harms associated with conventional energy sources, especially in this age where a greater concern regarding sustainability and environmental protection exists. The “smoothness” of this transition from a reliable conventional generation mix to a more volatile and “parti-colored" one will be particularly challenging, given escalating electricity demands arising from transportation electrification and proliferation of demand-response mechanisms. In this foreseeable framework, proper Hybrid Energy Systems sizing, and operation strategies will be crucial to dictate the electric power system’s contribution to the “green” agenda. This paper presents an optimal power dispatch strategy for grid-connected/off-grid hybrid energy systems with storage capabilities. The Short-Term Price Forecast information as an important decision-making tool for market players will guide the cost side dispatch strategy, alongside with the storage availability. Different scenarios were examined to highlight the effectiveness of the proposed approach.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Daily Operation Optimization of a Hybrid Energy System Considering a Short-Term Electricity Price Forecast Scheme

et al. 2019

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“…In recent decades, many electricity generation problems have been caused by their high production cost and environmental impact [1]. It is generally accepted that renewable energy can provide promising solutions for the problems, and much research has been focused on numerous techniques, such as hydropower [2][3][4], fuel cells [5], biofuels [6], wind power [7][8][9], and solar power generation [10]. Pumped hydroelectric storage (PHES) has attracted widespread interest because of its great flexibility and storage capacity in improving grid stability of other renewable energy sources [11,12].…”

Section: Introductionmentioning

confidence: 99%

CFD Optimization Process of a Lateral Inlet/Outlet Diffusion Part of a Pumped Hydroelectric Storage Based on Optimal Surrogate Models

et al. 2019

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The lateral inlet/outlet plays a critical role in the connecting tunnels of a water delivery system in a pumped hydroelectric storage (PHES). Therefore, the shape of the inlet/outlet was improved through computational fluid dynamics (CFD) optimization based on optimal surrogate models. The CFD method applied in this paper was validated by a physical experiment that was carefully designed to meet bidirectional flow requirements. To determine a good compromise between the generation and pump mode, reasonable weights were defined to better evaluate the overall performance. In order to find suitable surrogate models to improve the optimization process, the best suited surrogate models were identified by an optimal model selection method. The optimal configurations of the surrogate model for the head loss and the velocity distribution coefficient were the Kriging model with a Gaussian kernel and the Kriging model with an Exponential kernel, respectively. Finally, a multi-objective surrogate-based optimization method was used to determine the optimum design. The overall head loss coefficient and velocity distribution coefficients were 0.248 and 1.416. Compared with the original shape, the coefficients decrease by 6.42% and 40.28%, respectively. The methods and findings of this work may provide practical guidelines for designers and researchers.

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“…Reasonable sizing of such power systems could improve the power supply reliability and reduce the annual system cost [4]. Stand-alone systems can be more cost effective and reliable if they are optimally designed.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Standalone Photovoltaic System Considering Loss of Power Supply Probability for Repeater Station of Nepal Telecom

Ranjit¹,

Maharjan²

2019

J. Adv. Coll. Engin. Mgt.

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Telecommunication plays the vital role in the human life and has become an integrated part of the society. The rapidly growing information and communications technology and increasing competition in telecommunication markets triggers the telecom operators to extend their networks and services to their potential customers in different geographical locations. It necessitates them to install repeaters and communication towers powered by standalone Photovoltaic system in remote rural areas. This paper presents optimization of standalone photovoltaic system maximizing reliability in one of such remotely located Palethar Repeater Station of Nepal Telecom situated in Dadeldhura district of Far-western region. The optimization is carried out using Genetic Algorithm in MATLAB software for given load profile enhancing reliability of the system with maximum reduction of overall system cost. The loss of power supply probability (LPSP) is considered for reflecting the reliability of the system. The paper discusses different optimal configuration of standalone PV system under various values of LPSP after optimization.

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Optimal Sizing of a Stand-Alone Hybrid Power System Based on Battery/Hydrogen with an Improved Ant Colony Optimization

Cited by 91 publications

References 37 publications

Daily Operation Optimization of a Hybrid Energy System Considering a Short-Term Electricity Price Forecast Scheme

Daily Operation Optimization of a Hybrid Energy System Considering a Short-Term Electricity Price Forecast Scheme

CFD Optimization Process of a Lateral Inlet/Outlet Diffusion Part of a Pumped Hydroelectric Storage Based on Optimal Surrogate Models

Optimization of Standalone Photovoltaic System Considering Loss of Power Supply Probability for Repeater Station of Nepal Telecom

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