Optimal Recloser Setting, Considering Reliability and Power Quality in Distribution Networks

Azari, Rashid Niaz; Chitsazan, Mohammad Amin; Niazazari, Iman

doi:10.11648/j.epes.20170601.11

Cited by 16 publications

(10 citation statements)

References 17 publications

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“…The inverter output current, the capacitor current, and the grid current are denoted by , and , respectively. The per-phase model of the PST-LCL filter state-space model is (1) .…”

Section: Proposed Filtermentioning

confidence: 99%

See 1 more Smart Citation

Phase Shifting Transformer-LCL (PST-LCL) Filter: Modeling and Analysis

Chitsazan¹

2018

EPES

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Power converters have been widely used in power systems to improve the quality and magnitude of the power drawn from renewable energy sources. An LCL filter for connection of an inverter to the grid is often used to reduce the harmonics generated by the inverter. Based on the different design methodologies, optimal parameters of LCL filters tend to differ in wide ranges. This paper proposes a new approach to an LCL filter used for decreasing the harmonic currents. A phase shifting transformer is added into the structure of an LCL filter to mitigate the harmonic current. The procedures and techniques described in this paper are particularly suitable for the grid-connected photovoltaic energy systems.

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“…The inverter output current, the capacitor current, and the grid current are denoted by , and , respectively. The per-phase model of the PST-LCL filter state-space model is (1) .…”

Section: Proposed Filtermentioning

confidence: 99%

“…There is a growing demand for high-quality and reliable electrical energy and protection systems have a significant impact on improvement of the system reliability [1][2]. Energy systems based on photovoltaic (PV) cells have been growing with a fast pace.…”

Section: Introductionmentioning

confidence: 99%

Phase Shifting Transformer-LCL (PST-LCL) Filter: Modeling and Analysis

Chitsazan¹

2018

EPES

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show abstract

“…Therefore, reclosers can improve the reliability of distribution networks. Previously, interruptions shorter than a few minutes were not considered as a source of concerns to most of the customers [21,22]. Most of the protective schemes used for radial distribution systems involve the coordination of fuses, reclosers and overcurrent relays [23,24].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the protective schemes used for radial distribution systems involve the coordination of fuses, reclosers and overcurrent relays [23,24]. Optimal settings of a recloser involve some parameters with random nature such as fault location, fault type, fault resistance and fault nature (temporary or permanent) [22].…”

Section: Introductionmentioning

confidence: 99%

Impact of Recloser on Protecting Blind Areas of Distribution Network in the Presence of Distributed Generation

et al. 2019

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The protection relay issues increase with the penetration of distributed generation (DG) units in distribution networks. Blind protection, sympathetic tripping and failure of reclosing are the frequent problems that are created by adding DG to the distribution networks. This research focuses on the impact of reclosers on overcurrent relay blind protection areas with DGs embedded in the distribution network. The protection blinding in overcurrent relays leads to a delay or non-tripping of the relay. The conventional solution for the blinding issue is to increase the sensitivity in the relay settings. The variation of relay settings may cause problems in the distribution network. This paper investigates the effect of reclosers on eliminating blind areas and improves the reliability in the presence of DG. In this way, possible blind points of the case study are detected, and recloser relays are then installed in appropriate locations. The case study is based on realistic data of a distribution network. The DG consists of two generators with a capacity of 4 MW. The simulation is performed in DIgSILENT software.

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“…The photovoltaic (PV) cells starts to have significant impacts to the power grid system. Therefore, more advanced filters, power electronic systems, and control solutions have to be introduced to improve the power quality, network reliability and stability [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Harmonic Mitigation in Three-Phase Power Networks with Photovoltaic Energy Sources

Chitsazan¹

2017

EPES

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Abstract:Energy systems based on photovoltaic (PV) cells have increased at a rapid pace. Therefore, power converters have been widely employed in power systems to enhance the quality and magnitude of the power drawn from renewable energy sources. An LCL filter for connection of an inverter to the grid is often used to reduce harmonics generated by the inverter. According to different design techniques, optimal parameters of LCL filter tend to vary in a wide range. This paper presents a new approach to an LCL filter. A phase shifting transformer placed in the structure of an LCL filter to minimize harmonic current. Methods and techniques described in this paper are particularly suitable for grid-connected PV power systems.

show abstract

Optimal Recloser Setting, Considering Reliability and Power Quality in Distribution Networks

Cited by 16 publications

References 17 publications

Phase Shifting Transformer-LCL (PST-LCL) Filter: Modeling and Analysis

Phase Shifting Transformer-LCL (PST-LCL) Filter: Modeling and Analysis

Impact of Recloser on Protecting Blind Areas of Distribution Network in the Presence of Distributed Generation

Harmonic Mitigation in Three-Phase Power Networks with Photovoltaic Energy Sources

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