Automatic Transfer Switch Dilengkapi Fitur Monitoring Website pada On-Grid Solar Home System
Submission Date: 2021-08-18 01:00:56
Accepted Date: 2021-12-22 12:45:18
Abstract
Penggunaan photovoltaic sangat meningkat untuk memenuhi kebutuhan sehari - hari. Namun saat ini penggunaan energi listrik dari photovoltaic belum dapat dimonitoring dan dikontrol dengan baik. Hal ini ditunjukkan dari cepat rusaknya baterai dan sistem photovoltaic yang digunakan pada Solar Home System (SHS). Oleh karena itu, diperlukan sebuah perangkat monitoring serta kendali untuk membantu pembagian besaran daya yang keluar dari photovoltaic untuk suplai beban rumah tangga. Automatic Transfer Switch (ATS) merupakan alat yang dapat melakukan pergantian porsi suplai energi listrik secara otomatis memanfaatkan cara kerja relay dengan memperhatikan kondisi presentase dari baterai. ATS dilengkapi dengan sistem monitoring berbasis website dengan menggunakan metode Network Control System yang dapat melakukan kontrol dan monitoring secara real time. Sistem Automatic Transfer Switch dapat melakukan switching atau perpindahan beban dari sumber utama ke sumber cadangan berdasarkan kondisi presentase dari baterai saat mencapai nilai sebesar 11,4 Volt dengan kapasitas baterai berkisar antara 36%-38%. Sehingga ATS melakukan cut off sumber dari PLTS dan mengalihkan beban pada sumber PLN tanpa jeda. Pada sistem monitoring ATS menggunakan metode Moving Average sebagai filter hasil data yang tidak sesuai pada pengukuran keluaran photovoltaic, dan didapatkan grafik monitoring tegangan dan arus photovoltaic yang lebih stabil. Dengan MAE tegangan PV = 1,368 V, MAE arus PV = 0, 152 A dan MSE tegangan PV= 3,389 V, MSE arus PV = 0,079 A. Serta penggunaan metode Network Control System dengan pemograman millis interrupt pada kendali relay ATS didapatkan rata-rata hasil delay relay 1 dan relay 2 sebesar 1,034 seconds jauh lebih baik daripada penggunaan pemrograman tanpa millis interrupt yaitu sebesar 61 seconds. Hal tersebut tentunya berpengaruh pada keefektifan kerja dari relay kontrol.
Keywords
Automatic Transfer Switch; Monitoring Website; Moving Average; Network Control System; Solar Home System
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