Impacts of PV installation on the low voltage residental distribution networks: A case study of Yildiz

Tursun, Faik; Smiai, M.S.; Şahin, Cem; Gezer, Doğan

doi:10.1109/powereng.2013.6635822

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…Pada tulisan ini pemasangan dan penambahan PV yang dilakukan sangat tergantung terhadap tingkat penetrasinya, lokasi instalasi PV, jenis, kapasitas dan topografi jaringan [6], [7]. Menghitung persenan penetrasi PV sangat diperlukan.…”

Section: Pendahuluanunclassified

“…Namun, meningkatkan penetrasi DG khususnya PV atau photovoltaic dan sistem angin atau PLTBayu menyebabkan banyak masalah teknis dalam sistem distribusi yang mempengaruhi kualitas daya dan keandalan jaringan [8]. Penetrasi PV yang tinggi menyebabkan banyak masalah tegangan termasuk kenaikan tegangan karena aliran daya yang terbalik dan kondisi beban yang rendah, fluktuasi tegangan karena perubahan kondisi cuaca, dan ketidakseimbangan tegangan karena perbedaan konfigurasi PV [7], [8].…”

Section: Pendahuluanunclassified

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Penetrasi PV dan Ketidakseimbangan Beban Pada Feeder 1 Gardu Induk Wirobrajan

Pardi¹

2021

Electrices

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Pembangkitan listrik dengan menggunakan bahan bakar fosil dapat meningkatkan pemanasan global. Untuk mengurangi penggunaan bahan bakar fosil tersebut dapat diatasi dengan pengembangan dan pemanfaatan Energi Baru Terbarukan (EBT). Salah satu contoh dari EBT tersebut adalah Photovoltaic (PV). Penambahan PV dengan penetrasi dan penempatan yang bervariasi memiliki pengaruh yang berbeda-beda terhadap aliran daya. Disisi lain, ketidakseimbangan beban mengakibatkan munculnya arus di netral trafo. Arus yang mengalir di netral trafo ini menyebabkan terjadinya losses (rugi-rugi), yaitu losses akibat adanya arus netral pada penghantar netral trafo dan losses akibat arus netral yang mengalir ke tanah. Tujuan penelitian ini adalah untuk melihat pengaruh masuknya PV ke sistem dengan penetrasi yang berbeda-beda. Penambahan PV di ujung dekat beban dengan penetrasi 10 %, 20% dan 30 % pada tegangan 0,38 kV menyebabkan losses naik sebesar 3,5 kW, 30,8 kW dan 101,6 kW, sedangkan Penambahan PV di tengah saluran dengan penetrasi 10 %, 20% dan 30 % pada tegangan 20 kV membantu mengurangi losses sebesar 9,4 kW, 11,4 kW dan 13 kW. Selain itu, untuk melihat load flow sistem saat terjadi ketidakseimbangan beban pada Wirobrajan substation feeder 1 yang terdiri dari 4 area penyaluran yaitu Ngestiharjo-pakuncen, Tegalrejo, Bumijo A dan Bumijo B dengan menggunakan ETAP (Electrical Transient Analyzer Program) 12.6.0.

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Section: Pendahuluanunclassified

Penetrasi PV dan Ketidakseimbangan Beban Pada Feeder 1 Gardu Induk Wirobrajan

Pardi¹

2021

Electrices

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“…For example, research in [23,24] provides an overview of the various voltage analyses of distribution systems with distributed generation and compares different research on the voltage variations concerning solar PV penetration. The LV network, normally consisting of an individual secondary transformer, presents different limits depending on multiple factors, considering that voltage violations in the LV network can be avoided even at high penetration levels (around 90% of feeder maximum load [25]) in certain conditions. The voltage rise is highly sensitive to the position and concentration of PVs along the feeder [26].…”

Section: Introductionmentioning

confidence: 99%

PV Hosting Capacity in LV Networks by Combining Customer Voltage Sensitivity and Reliability Analysis

Kisuule

Ndawula²,

et al. 2023

Energies

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This paper investigates voltage regulation in low voltage (LV) networks under different loading conditions of a supply network, with increased levels of distributed generation, and in particular with a diverse range of locational solar photovoltaic (PV) penetration. This topic has been researched extensively, with beneficial impacts expected up to a certain point when reverse power flows begin to negatively impact customers connected to the distribution system. In this paper, a voltage-based approach that utilizes novel voltage-based reliability indices is proposed to analyse the risk and reliability of the LV supply feeder, as well as its PV hosting capacity. The proposed indices are directly comparable to results from a probabilistic reliability assessment. The operation of the network is simulated for different PV scenarios to investigate the impacts of increased PV penetration, the location of PV on the feeder, and loading conditions of the MV supply network on the reliability results. It can be seen that all reliability indices improve with increased PV penetration levels when the supply network is heavily loaded and conversely deteriorate when the supply network is lightly loaded. Moreover, bus voltages improve when an on-load tap changer is fitted at the secondary trans-former which leads to better reliability performance as the occurrence and duration of low voltage violations are reduced in all PV scenarios. The approach in this paper is opposed to the conventional reliability assessment, which considers sustained interruptions to customers caused by failure of network components, and thus contributes to a comprehensive analysis of quality of service by considering transient events (i.e., voltage related) in the LV distribution network.

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