Evaluation and improvement of reliability indices of electrical power distribution system

Sekhar, P. C.; Deshpande, R. A.; Sankar, V.

doi:10.1109/npsc.2016.7858838

Cited by 43 publications

(24 citation statements)

References 3 publications

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“…Moreover, the goal of application of new technical standards and modern technologies is to increase energy efficiency. The projects reducing the losses in the transformers are conducted, and special computational algorithms facilitating the process of selection of transformers are developed [4,12,13,22].…”

Section: The Methods and Actions Taken To Improve Power Supply Reliability Indexes In The Distribution Network Of A Selected Department Omentioning

confidence: 99%

The impact of selected variants of remote control on power supply reliability indexes of distribution networks

Kozyra

Łukasik

Kuśmińska-Fijałkowska

et al. 2021

Electr Eng

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Ensuring reliability and continuity of energy supply is the main goal of local governments and distribution companies. The continuity of energy supply means capability of a power grid to supply agreed amount of energy, of specific quality, without power cuts. The expectations concerning the quality of supplied energy and ensuring its continuity are constantly growing, and any power cuts have significant impact on comfort of life and manufacturing and service sector. To increase reliability of energy supply and improve condition of a power grid in the distribution companies, the works are conducted to increase power supply reliability indexes.The main goal of this publication is to present a problem of discontinuity of energy supply and actions aiming at improvement of power supply reliability indexes. An analysis of discontinuity of energy supply presented in the article is based on data obtained from a selected department of a distribution company. Based on actual data, the impact of location of remote-controlled controllers on the value of SAIDI and SAIFI was presented. Four variants of remote control on the sequence of a medium-voltage cable line were analysed.

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Section: The Methods and Actions Taken To Improve Power Supply Reliability Indexes In The Distribution Network Of A Selected Department Omentioning

confidence: 99%

The impact of selected variants of remote control on power supply reliability indexes of distribution networks

Kozyra

Łukasik

Kuśmińska-Fijałkowska

et al. 2021

Electr Eng

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“…Reliability is the ability of a distribution system to provide uninterrupted power supply to customer [25]. Reliability indices are the benchmark parameters for evaluating reliability of the distribution system and performance of the utility.…”

Section: Problem Formulationmentioning

confidence: 99%

Reliability Improvement of Radial Distribution System by Reconfiguration

Srividhya¹,

Mounika.²,

S.³

et al. 2020

Adv. sci. technol. eng. syst. j.

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In a radial distribution system, component failure leads to service interruption and subsequent disconnection of a few load points. An abnormal variation in the voltage levels and high power loss gives rise to reliability issues. In this work, feeder reconfiguration is performed to improve reliability, minimize voltage deviation and power loss. A Binary Particle Swarm Optimization based search function handles the reconfiguration. The goal of this search function is to identify the optimal tie switches which minimize the multi-objective function. The search algorithm based on Binary Particle Swarm Optimization is utilized to handle the reconfiguration which identifies the optimal tie switches for minimizing the multi-objective function. The effect of the various algorith parameters on the convergence rate is studied. The proposed algorithm has been tested on Standard IEEE 33 and 69 test systems and the obtained results show a boost in the system reliability.

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“…Although the high-set was configured to trip instantaneously, the actual TT was equivalent to the circuit-breaker operating time since the circuit-breaker was not capable of tripping instantaneously. The circuitbreaker operating time is defined as the time elapsed between the trip initiation and when the arc has been extinguished and is assumed to be 80 ms [25]. For the position and protection settings of reclosers provided in Table 5, the energy exposure for a fault at every 1 km interval of the feeder is plotted in Figure 5 with and without a high-set applied on the feeder circuit-breaker.…”

Section: Variations In Recloser Positioning: Bottom-up Approach and Tmentioning

confidence: 99%

“…Through the proposed strategy, service restoration, self-healing and fault indicator are added to increase the reliability and performance of distribution networks. The impact of the number and the position of reclosers on the investment cost, customer interruption costs and the system average interruption duration index (SAIDI) were also discussed [22][23][24][25][26][27][28][29][30][31]. An increase in the number of reclosers minimises the customer outage costs and improves the network SAIDI [25,26].…”

Section: Introductionmentioning

confidence: 99%

Recloser based energy exposure assessment of a distribution network

Thomas

Zyl

Naidoo

et al. 2019

J. energy South. Afr.

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The optimised placement of reclosers on a distribution network is known to improve the reliability of a power system. Furthermore, the protection settings on distribution systems rely heavily on the number and placement of such reclosers. This study examined the effect of using protection settings methodology with the placement of reclosers to ameliorate the damage sustained during faults on a distribution network. The aim of the study was to determine whether this ‘damage control factor’ should be a future consideration for recloser placement. It has been found that the determination of the number and placement of reclosers, which are the function of the energy exposure of feeder, helped to optimise the operation and reliability of a distribution network. This could benefit both energy users and energy suppliers, who often face different challenges during the fault levels on the network.

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Evaluation and improvement of reliability indices of electrical power distribution system

Cited by 43 publications

References 3 publications

The impact of selected variants of remote control on power supply reliability indexes of distribution networks

The impact of selected variants of remote control on power supply reliability indexes of distribution networks

Reliability Improvement of Radial Distribution System by Reconfiguration

Recloser based energy exposure assessment of a distribution network

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