Evaluation economic and reliability issues for an autonomous independent network of distributed energy resources

Moradi, Mohammad H.; Khandani, Ali

doi:10.1016/j.ijepes.2013.11.006

Cited by 24 publications

(13 citation statements)

References 14 publications

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“…They studied periodic PM performance in three types of coherent systems and used a Simulated Annealing (SA) algorithm to solve the problem trying to minimize total costs along with meeting the minimum predetermined reliability level. Several other studies dealing with preventive maintenance scheduling problem have been done by [11][12][13] during the last two decades.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

A New Biobjective Model to Optimize Integrated Redundancy Allocation and Reliability-Centered Maintenance Problems in a System Using Metaheuristics

Dogahe

Sadjadi

2015

Mathematical Problems in Engineering

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A novel integrated model is proposed to optimize the redundancy allocation problem (RAP) and the reliability-centered maintenance (RCM) simultaneously. A system of both repairable and nonrepairable components has been considered. In this system, electronic components are nonrepairable while mechanical components are mostly repairable. For nonrepairable components, a redundancy allocation problem is dealt with to determine optimal redundancy strategy and number of redundant components to be implemented in each subsystem. In addition, a maintenance scheduling problem is considered for repairable components in order to identify the best maintenance policy and optimize system reliability. Both active and cold standby redundancy strategies have been taken into account for electronic components. Also, net present value of the secondary cost including operational and maintenance costs has been calculated. The problem is formulated as a biobjective mathematical programming model aiming to reach a tradeoff between system reliability and cost. Three metaheuristic algorithms are employed to solve the proposed model: Nondominated Sorting Genetic Algorithm (NSGA-II), Multiobjective Particle Swarm Optimization (MOPSO), and Multiobjective Firefly Algorithm (MOFA). Several test problems are solved using the mentioned algorithms to test efficiency and effectiveness of the solution approaches and obtained results are analyzed.

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Section: Introduction and Literature Reviewmentioning

confidence: 99%

A New Biobjective Model to Optimize Integrated Redundancy Allocation and Reliability-Centered Maintenance Problems in a System Using Metaheuristics

Dogahe

Sadjadi

2015

Mathematical Problems in Engineering

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“…Based on the concept of segmentation, the system was divided into six different segments, the area of each one was determined in Figure (1). Wind speed data was obtained from [27] and hourly load data were derived from [28], related to US data in 2012. Two wind turbines as renewable resources were connected to the test system.…”

Section: Data For the Studied Systemmentioning

confidence: 99%

Analytical evaluation of the reliability of the active distribution networks considering the scheduling of switching and network recovery

Roshan¹,

Forouzanfar²,

Ghiasi³

2019

IJET

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Given the direct relationship between distribution networks and consumers of the power systems, the reliability of these systems is highly important. So improvement of reliability is the top priority of distribution networks designers and operators. One of the solutions provided in this area is the installation of distributed generation in distribution networks, which allows the islanded operation of the distribution system at the time of fault in upstream networks. In this project, a detailed analytical model was proposed to evaluate the reliability of distribution networks considering distributed generation. In order to more accurately modelling, the time required to recover from a main source, the time needed to open and close the switches and the time needed to recover loads through an alternative source were considered. Moreover, the age of distributed generation sources was modeled and its impact on reliability was examined. Also, the time and volume of calculations were reduced using the concept of segmentation and calculation of reliability indices for each segmrnt. The proposed model was used to evaluate the reliability of a sample distribution network. The results indicated that as the age of distributed generation increased, the reliability of the distribution system was reduced.Keyword -reliability of distributed systems, distributed generation (DG), analytical evaluation, islanded operation. I. INTRODUCTIONIn recent years, many efforts have been made to improve the reliability of power systems and distribution networks. One of the solutions considered by many researchers to improve reliability is the implementation and use of renewable energy resources in power systems. In order to improve the conditions for the use of distributed generation (DG), a new concept called microgid was introduced that enables the integration of DG sources and more efficient use of them [1]. Given the increasing presence of DG and microgrids in distribution systems, evaluating the reliability of these networks has become more complex. The evaluation of the reliability of distributed networks along with DG has attracted the attention of many scholars. In some studies, the reliability of microgrids with distributed energy sources such as wind and solar energy is evaluated. For example, in [2,3,4,5], the reliability of distributed networks along with DG is evaluated. In [6], the impact of DG and storage systems on the reliability of the distribution system is studied. In this study, storage system modeling was used to reduce the fluctuations in output power of renewable energy resources.There are also studies to use Monte Carlo Simulation (MCS) to evaluate the reliability of the system. In [7,8], the reliability of small islanded power systems and independent microgrids is calculated using load simulation and MCS. In [9], a comprehensive review of reliability models and methods for estimating the impact of renewable energy resources on the availability of generation power is provided. In [10], a study on evaluating the reliab...

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“…Rozwiązanie zadania optymalizacji systemu energetycznego, trudne od strony matematycznej, sprowadzające się do optymalizacji wielokryterialnej z ograniczeniami [15], [16], w praktyce okazuje się bardziej skomplikowane. Dodatkowe czynniki, jakie trudno ująć w procesie optymalizacji, wynikają z kolejnych uwarunkowań, istotnych szczególnie na poziomie lokalnym i regionalnym:  trudności z określeniem zapotrzebowania na energię w okresie średnio-i długoterminowym, minimalizującym ryzyko biznesowe, szczególnie dla małych wytwórców,  umiejętności sformułowania i zastosowania innych klasycznych kryteriów zrównoważonego rozwoju (np.…”

Section: Kwestia Efektywności Energetycznejunclassified

Rozwój zasobów rozproszonych energii - desygnat pojęcia i problematyka krajowa

Skoczkowski¹

2016

ELECTROTECHNICAL REVIEW

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The paper presents current issues related to distributed energy resources which, according to the authors, should be seen as four interacting elements, and these are: use of energy, storage of energy, demand side response and energy efficiency. One sheds so more light on the very concept "distributed energy resources" by explaining its definition and pointing out its designations. The reader gets also familiarized with advantages and as well as threats attributed to the advancement of distributed generation. Finally, the authors discuss issues of distributed energy resources in the Polish power system.(Development of distributed energy resources-designation of the concept and domestic issues) Słowa kluczowe: generacja rozproszona, rozproszone zasoby energii, efektywność energetyczna, wytwarzanie energii elektrycznej

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Evaluation economic and reliability issues for an autonomous independent network of distributed energy resources

Cited by 24 publications

References 14 publications

A New Biobjective Model to Optimize Integrated Redundancy Allocation and Reliability-Centered Maintenance Problems in a System Using Metaheuristics

A New Biobjective Model to Optimize Integrated Redundancy Allocation and Reliability-Centered Maintenance Problems in a System Using Metaheuristics

Analytical evaluation of the reliability of the active distribution networks considering the scheduling of switching and network recovery

Rozwój zasobów rozproszonych energii - desygnat pojęcia i problematyka krajowa

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