Cost versus reliability sizing strategy for isolated photovoltaic micro-grids in the developing world

Lee, Mitchell; Soto, Daniel; Modi, Vijay

doi:10.1016/j.renene.2014.03.019

Cited by 65 publications

(27 citation statements)

References 14 publications

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“…These results were obtained for a desired LLP of 0.01 or less. Using equations (27)(28)(29)(30), the obtained PV module range was (7, 95) while the battery range calculated was (10,542,158,125) Wh. According to [39], the recommended values of the mutation factor (F) and crossover rate (CR) are 0.75 and 0.5, respectively.…”

Section: Resultsmentioning

confidence: 99%

Optimal Sizing of Standalone Photovoltaic System Using Improved Performance Model and Optimization Algorithm

Khatib

Muhsen

2020

Sustainability

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A standalone photovoltaic system mainly consists of photovoltaic panels and battery bank. The use of such systems is restricted mainly due to their high initial costs. This problem is alleviated by optimal sizing as it results in reliable and cost-effective systems. However, optimal sizing is a complex task. Artificial intelligence (AI) has been shown to be effective in PV system sizing. This paper presents an AI-based standalone PV system sizing method. Differential evolution multi-objective optimization is used to find the optimal balance between system’s reliability and cost. Two objective functions are minimized, the loss of load probability and the life cycle cost. A numerical algorithm is used as a benchmark for the proposed method’s speed and accuracy. Results indicate that the AI algorithm can be successfully used in standalone PV systems sizing. The proposed method was roughly 27 times faster than the numerical method. Due to AI algorithm’s random nature, the proposed method resulted in the exact optimal solution in 6 out of 12 runs. Near-optimal solutions were found in the other six runs. Nevertheless, the nearly optimal solutions did not introduce major departure from optimal system performance, indicating that the results of the proposed method are practically optimal at worst.

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Section: Resultsmentioning

confidence: 99%

Optimal Sizing of Standalone Photovoltaic System Using Improved Performance Model and Optimization Algorithm

Khatib

Muhsen

2020

Sustainability

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“…The approach taken in this work also differs both in the methodology for constructing demand profiles and the considerations of meeting reliability thresholds by conducting demand side management. Previous work considers demand profile construction based on either data directly gathered from installations (for example via data collected from a micro-grid with a freezer load in Mali [20] and off-grid systems in Malawi [21] or based on household meter data as in Ref. [22]), or synthesized load profiles (for example using a back-of-the-envelope technique to estimate daily consumption as in Ref.…”

Section: Model Approach and Objectivementioning

confidence: 99%

Estimating the value of demand-side management in low-cost, solar micro-grids

Mehra

Amatya

Ram

2018

Energy

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Demand-side management has the potential to reduce the cost of solar based community micro-grids and solar home systems for electricity access. This paper presents a methodology for optimal leastcost sizing of generation assets while meeting explicit reliability constraints in micro-grids that are capable of active demand management. The battery management model considers kinetic constraints on battery operation and represents dispatch in the field to regulate the depth of discharge. The model allows consideration of the trade-off between depth of discharge, cycle life, and calendar lifetime in leadacid batteries. Separate reliability targets for disaggregated, residential load profiles at hourly timesteps are considered to evaluate the performance and cost reduction potential of demand-side management capabilities d with economic results and sensitivity analyses around key input assumptions subsequently presented. We find that demand-side management can reduce the number and cost of requisite solar panels and batteries with the integration of real-time management and controls e a key result for justifying next generation micro-grids for electricity access.

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“…Most of studies have been conducted for designing standalone microgrids, considered higher reliability, as a results, cause to consider more capacity for microgrid components and this make the microgrid more expensive. To financial limitation considerations, consumers in rural regions in developing societies are unwilling and unable to pay unnecessary and surplus capacity [2]. In this way, designers must choose the best configuration for microgrid with considering consumers reliability requirements and compatible with their budget.…”

Section: Introductionmentioning

confidence: 99%

“…In this way, designers must choose the best configuration for microgrid with considering consumers reliability requirements and compatible with their budget. Different studies have been done on the topic of cost versus reliability trade-off for standalone microgrids [2]- [4]. In these works uncertainty of renewable energy resource does not considered accurately and studied microgrids is limited to a few components.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of standalone micro-grid considering reliability and investment costs

Jahangir¹,

Ahmadian²,

Golkar³

et al. 2016

CIRED Workshop 2016

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In the regions which are located far from the distribution networks, using standalone microgrid to supply the power demand with minimum cost and best reliability is essential. Optimal sizing of Distributed Energy Resources (DERs) in a typical microgrid is a complex multi-objective problem. In this paper a multi-objective modelling for designing a standalone microgrid with the best reliability and minimum cost for supplying the load demand is investigated and modelled. The proposed method is based on consumers demand and their consumption patterns.Specification index of proposed method is preventing from oversizing of microgrid components.

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Cost versus reliability sizing strategy for isolated photovoltaic micro-grids in the developing world

Cited by 65 publications

References 14 publications

Optimal Sizing of Standalone Photovoltaic System Using Improved Performance Model and Optimization Algorithm

Optimal Sizing of Standalone Photovoltaic System Using Improved Performance Model and Optimization Algorithm

Estimating the value of demand-side management in low-cost, solar micro-grids

Optimal design of standalone micro-grid considering reliability and investment costs

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