A MILP algorithm for the optimal sizing of an off-grid​ hybrid renewable energy system in South Tyrol

Alberizzi, Jacopo C.; Rossi, Mosé

doi:10.1016/j.egyr.2019.08.012

Cited by 33 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This research evaluates the resources as well as demand patterns of Chamba Chaurah community loads. An optimal sizing problem for PV/battery in an off-grid has been addressed by linear programming subject to objective functions for the reduction in operational cost [40]. In [41], A stochastic optimization technique has been implemented for appropriate sizing of distributed energy resources, i.e., PV/battery/wind to maximize the economic benefits for consumers.…”

Section: Storage Sizing Schemesmentioning

confidence: 99%

Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach

et al. 2022

View full text Add to dashboard Cite

The sizing of microgrids depends on the type of load and its operational hours. The significance of understanding the load operational characteristics in special purpose islanded microgrids is much needed for economic system sizing. The load operation of special-purpose microgrids often consumes high power for a short duration and remains idle most of the time, thus reducing the load factor. The inclusion of such loads in microgrid sizing causes huge capital costs making islanded microgrids an unfeasible solution. The islanded microgrid under study is an agricultural microgrid in a village having a small Crab Processing Plant (CPP) and a Domestic Sector (DS). The CPP constitutes the major power consumption. The community has a unique load consumption trend that is dependent on the highly uncertain parameter of availability of the crabs. Interestingly, crab availability is an independent parameter and cannot be accurately scheduled. The existing system sizing of the microgrid is performed based on the conventional methods that consider the CPP for full-day operation. However, the microgrid sources, especially the storage system may be reflected as oversized if the crab processing plants do not operate for several days due to the uncertain behavior of CPP causing enormous power wastage. In this paper, an integrated fixed and operational mode strategy for uncertain heavy loads is formulated. The proposed algorithm is based on the optimal sizing methodology aided by the load scheduling control strategy. The Particle Swarm Optimization technique is used for the optimal sizing integrated with the fuzzy logic controller to manage the available load. The membership functions are available excess power and the state of the charge of storage that defines the operational conditions for CPP. Based on input membership functions, the fuzzy controller decides on power dispatch in DS or CPP, keeping considerable SoC available for night hours. The simulation result shows that the time-dependent fuzzy controller approach manages to provide power to both sectors under optimal sizing while reducing the overall cost by 24% less than the existing microgrid.

show abstract

Section: Storage Sizing Schemesmentioning

confidence: 99%

Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Finally, for each option, a continuous mixed-integer linear programming (MILP) optimization algorithm was used to identify the optimal combination of different sources and storage systems to meet the 2017 energy requirements of the island at the lowest cost. The MILP approach was chosen because it is one of the state-of-the-art methods in such applications (Alberizzi et al, 2020), it is well-documented with several commercial solvers, and thanks to the convexity of linear problems the solution is guaranteed to be globally optimal (Urbanucci, 2018).…”

Section: Modeling and Optimization Frameworkmentioning

confidence: 99%

Benefits of a Diversified Energy Mix for Islanded Systems

et al. 2020

View full text Add to dashboard Cite

Achieving energy self-sufficiency is a major challenge for remote areas, especially islands. Various technologies have recently been developed to exploit renewable resources in such areas in order to reduce dependency on fossil fuels. This work focuses on the situation of Easter Island, a representative example of a remote area, and explores the pros and cons of three fully renewable energy mixes used to meet local requirements. This investigation reveals that, while a classic photovoltaic/battery combination allows demands to be met, the installations need to be oversized, leading to a 73% loss in the total energy produced. By adding alternative energy production sources such as wind turbines and pyrolysis, as well as alternative storage systems such as hydrogen-based storage, the energy loss is divided by a factor of 5. This more diverse energy mix enables a reasonable electricity price of 0.18 e/kWh, which is comparable to the current local prices. This work reinforces the importance of complementary energy production and storage systems to efficiently meet the energy requirements of islands.

show abstract

“…As comparison to a standalone diesel system, the hybrid system saves 8948 L of diesel generator fuel and reduces pollutant emissions by 59.6% according to the IHS SA-GIS methodology. [3,4] present a methodology based on Mixed Integer Linear Programming (MILP) and an algorithm implemented through Matlab software to determine the ideal size of a hybrid solar-wind system with battery storage to replace a diesel-fueled internal combustion engine (ICE) for a mountain lodge in South Tyrol, Italy. Research in [5] evaluates different combinations of photovoltaic panels and wind turbines with a backup system using a reliability-based analysis.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Off-Grid Energy Systems Optimal Sizing with Integrated Hydrogen Storage Based on Deterministic Balance Approach

Selim,

El-shimy,

Amer

et al. 2023

Preprint

View full text Add to dashboard Cite

Incorporating diverse renewable energy sources is imperative for establishing a resilient and sustainable power infrastructure. This research explores the optimal techno-economical hybrid energy system configuration, emphasizing hydrogen energy for system balance. We introduce a novel DBM (Deterministic Balanced Method) to ascertain the annual energy output over the project’s lifespan, contrasting it with HOMER software results. Validation against HOMER Pro revealed a high consistency in our method, with differences within a 5% range. This indicates our approach’s reliability in determining hybrid energy system sizes accurately. In addition to harnessing solar radiation and wind data from NASA and METEONORM, our study encompasses a real-case evaluation of Cairo International Airport’s hybrid renewable energy systems. The system design is based on actual, researched loads. Our results not only offer insights into effective hybrid energy system sizing but also propose using surplus energy in distributed networks for industrial and transportation energy conversion applications.

show abstract

A MILP algorithm for the optimal sizing of an off-grid hybrid renewable energy system in South Tyrol

Cited by 33 publications

References 9 publications

Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach

Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach

Benefits of a Diversified Energy Mix for Islanded Systems

Hybrid Off-Grid Energy Systems Optimal Sizing with Integrated Hydrogen Storage Based on Deterministic Balance Approach

Contact Info

Product

Resources

About

A MILP algorithm for the optimal sizing of an off-grid​ hybrid renewable energy system in South Tyrol

Cited by 33 publications

References 9 publications

Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach

Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach

Benefits of a Diversified Energy Mix for Islanded Systems

Hybrid Off-Grid Energy Systems Optimal Sizing with Integrated Hydrogen Storage Based on Deterministic Balance Approach

Contact Info

Product

Resources

About

A MILP algorithm for the optimal sizing of an off-grid hybrid renewable energy system in South Tyrol