The paper presents power quality enhancement on low voltage of three phase grid caused by PV generator integration under variabel solar irradiance level on constant temperature and load. MPPT Fuzzy helps to generate duty cycle to control DC/DC boost converter of PV generators. This model was expected to improve power quality due to unbalance voltage and current, low voltage and current harmonics, and low input power factor. There were eigth scenarios PV generator connected to three phase grid using MPPT Fuzzy and compared with MPPT P and O. The research results that application of two methods on different irradiance and PV generator integration level produces unbalanced voltage value stable at 0%. At the same conditions, the use of MPPT Fuzzy results unbalanced current was greater than MPPT P and O. On solar irradiance level fixed, the greater number of PV generator connected to three-phase grid, then value of average voltage and current harmonics (THD) will increases. At the level of solar radiation increases, average grid voltage and current THD also have increased. The average grid voltage and current THD was reduced after using MPPT Fuzzy. The application of MPPT Fuzzy was able to enhance profile of grid voltage and current THD due to integration of a number of PV generator to three phase grid corresponding with IEEE Standard 519-1992. MPPT Fuzzy was capable to improve input power factor better than MPPT P and O.
This paper presents comparative performance of transient power quality due to multi photovoltaic (PV) integration to grid at both fixed temperature and solar irradiation connected using Maximum Power Point Tracking Perturb and Observe (MPPT P and O)/MPPT Fuzzy. This research is performed as five transient of short-circuit faults on point common coupling (PCC) bus. An artificial intelligence with fuzzy logic controller (FLC) is used to set duty cycle with step variable to control DC/DC boost converter, generate quick convergence to determine MPPT for controlling of PV output voltage. Furthermore the result is compared with MPPT P and O. During transient phase, non-symmetrical faults are able to result an unbalance current/voltage greater than symmetrical faults. On symmetrical faults, MPPT Fuzzy is able to resultan average THD voltage/THD current smaller than MPPT P and O. Otherwise on non-symmetrical faults, MPPT P and O is able to resultan average THD voltage/THD current slightly smaller than MPPT Fuzzy. Both of MPPT P and O and MPPT Fuzzy on all short circuit faults during transient phase are able to result significantly smaller current average THD current than average THD voltage and limits of THD prescribed in IEEE 519. This research is simulated using Matlab/Simulink environment.
Sistem backup/cadangan catudaya menjadi suatu hal yang sangat dibutuhkan pada piranti elektronika yang membutuhkan energi listrik yang secara terus-menerus. Cadangan sumber tegangan diterapkan untuk menggantikan sumber tegangan utama dari PLN. Implementasi tersebut dibutuhkan suatu piranti pendukung berupa Automatic Transfer Switch (ATS) dalam melaksanakan pengalihan dari sumber tegangan utama ke sumber tegangan cadangan ataupun sebaliknya. Penelitian ini, membahas implementasi pengembangan sistem ATS menggunakan mikrokontroler yang dioperasikan berdasarkan hasil pembacaan tegangan oleh sensor arus ACS712. Perangkat ATS ini juga dilengkapi dengan modul ESP 8266 sebagai Wifi Shield untuk monitoring secara online berbasis IoT dan LCD untuk monitoring secara realtime. Pengujian sistem relai dapat bekerja dalam mengalihkan sumber tegangan dari sumber utama ke sumber cadangan atau sebaliknya. Waktu yang dibutuhkan rangkaian ATS ini untuk memindahkan sumber/supply 2 detik
Studi aliran beban dimaksudkan untuk memperoleh informasi mengenai alirandaya atau tegangan pada suatu jaringan sistem tenaga listrik. Informasi ini sangat dibutuhkan untuk mengevaluasi unjuk kerja sistem tenaga. Permasalahan aliran daya mencakup perhitungan aliran dan tegangan sistem pada terminal atau bus tertentu. penelitian evaluatif dengan menggunakan metode penelitian operation research/action research, Manfaat studi aliran daya ini yaitu, untuk mengetahui tegangan pada setiap simpul yang ada pada sistem, untuk mengetahui semua peralatan apakah memenuhi batas – batas yang ditentukan untuk meyalurkan daya yang diinginkan, dan untuk memperoleh kondisi mula pada perencanaan sistem yang baru. Studi study aliran beban ini mengambil contoh pada implementasi sistem tenaga listrik di lembaga pendidikan Universitas Bhayangkara Surabaya, dengan karakteristik beban terpusat (lumped load), jaringan sistem distribusi tenaga listrik berupa jaringan radial dan sumber tegangan berasal dari saluran menengah PLN 20 kV menuju ke titik – titik beban. Dari hasil perhitungan aliran daya berbantuan program ETAP (Electrical Transient Analyzer Program) dapat disimpulkan bahwa sistem jaringan listrik sudah baik.Hasil yang diperoleh adalah Circuit breaker pada CB4 mengalami overload dan pada bus 24, bus 4 dan bus 6 mengalami undervoltage. Sedangkan aliran daya masih memenuhi standar menurut hasil Text Report pada ETAP.
<p>The paper presents power quality enhancement on low voltage of three phase grid caused by PV generator integration under variabel solar irradiance level on constant temperature and load. MPPT Fuzzy helps to generate duty cycle to control DC/DC boost converter of PV generators. This model was expected to improve power quality due to unbalance voltage and current, low voltage and current harmonics, and low input power factor. There were eigth scenarios PV generator connected to three phase grid using MPPT Fuzzy and compared with MPPT P and O. The research results that application of two methods on different irradiance and PV generator integration level produces unbalanced voltage value stable at 0%. At the same conditions, the use of MPPT Fuzzy results unbalanced current was greater than MPPT P and O. On solar irradiance level fixed, the greater number of PV generator connected to three-phase grid, then value of average voltage and current harmonics (THD) will increases. At the level of solar radiation increases, average grid voltage and current THD also have increased. The average grid voltage and current THD was reduced after using MPPT Fuzzy. The application of MPPT Fuzzy was able to enhance profile of grid voltage and current THD due to integration of a number of PV generator to three phase grid corresponding with IEEE Standard 519-1992. MPPT Fuzzy was capable to improve input power factor better than MPPT P and O.</p>
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.