Reliability Enhancement in Distribution Systems via Optimum Network Reconfiguration by Using Gravitational Search Algorithm

Alias, Qais M.; Salman, Nesrallh; Abed, Rasha

doi:10.24237/djes.2016.09401

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The distributed system combined with renewable energy sources operates in the grid-connected PV energy, and the component failure mode of the energy system occurs due to the multiple component failures of the proposed system (Salman, 2015).…”

Section: Load Flow Analysismentioning

confidence: 99%

Reliability assessment of grid-connected multi-inverter for renewable power generation sector

Abed

Mhalla²

2023

AGJSR

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PurposeThe paper aims to present a grid-connected multi-inverter for solar photovoltaic (PV) systems to enhance reliability indices after selected the placement and level of PV solar.Design/methodology/approachIn this study, the associated probability is calculated based on the solar power generation capacity levels and outages conditions. Then, based on this probability, dependability indices like average energy not supplied (AENS), expected energy not supplied and loss of load expectations (LOLE) are computed, also, another indices have been computed such as (customer average interruption duration index (CAIDI), system average interruption frequency index (SAIFI) and system average interruption duration index (SAIDI)) addressing by affected customers with distribution networks reliability assessment, including PV. On the basis of their dependability indices and active power flow, several PV solar modules installed in several places are analyzed. A mechanism for assessing the performance of the grid's integration of renewable energy sources is also under investigation.FindingsThe findings of this study based on data extracted form a PV power plant connected to the power network system in Diyala, Iraq 132 kV, attempts to identify the system's weakest points in order to improve the system's overall dependability. In addition, enhanced reliability indices are given for measuring solar PV systems performance connected to the grid and reviewed for the benefit of the customers.Originality/valueThe main contributions of this study are two methods for determining the reliability of PV generators taking into consideration the system component failure rates and the power electronic component defect rates in a PV system which depend on the power input and the power loss using electrical transient analysis program (ETAP) program.

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Section: Load Flow Analysismentioning

confidence: 99%

Reliability assessment of grid-connected multi-inverter for renewable power generation sector

Abed

Mhalla²

2023

AGJSR

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“…Power system is designed to provide sufficient electrical power supply to the customers in its area with an acceptable level of the supply reliability [1,2]. Today, utilities try to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of the feeder to other substation [3].…”

Section: Introductionmentioning

confidence: 99%

Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices

Teshome¹,

Mabrahtu²

2020

EPES

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Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.

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Reliability Enhancement in Distribution Systems via Optimum Network Reconfiguration by Using Gravitational Search Algorithm

Cited by 2 publications

References 6 publications

Reliability assessment of grid-connected multi-inverter for renewable power generation sector

Reliability assessment of grid-connected multi-inverter for renewable power generation sector

Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices

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