Mayasari, Dwi (2026) Pengembangan Sistem Embedded Gateway Untuk Interoperabilitas PV Inverter Dalam Smart Grid Menggunakan Protokol OPC UA. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Virtual Power Plant (VPP) merupakan pendekatan dalam Smart Grid untuk mengoordinasikan Distributed Energy Resources (DER), termasuk PV rooftop yang tersebar. Integrasi PV inverter ke dalam VPP masih menghadapi tantangan interoperabilitas akibat perbedaan protokol komunikasi, struktur data, dan karakteristik perangkat. Penelitian ini merancang dan mengimplementasikan embedded gateway untuk mengintegrasikan data dan kontrol PV inverter berbasis SunSpec Modbus TCP ke OPC Unified Architecture (OPC UA), serta memperluas komunikasi online melalui MQTT dan VPS. Pengujian dilakukan pada skenario monitoring dan curtailment lokal, monitoring dan curtailment online, keamanan komunikasi, serta implementasi pada perangkat PV inverter. Hasil pengujian monitoring lokal menunjukkan kesesuaian translasi data digital antara Modbus TCP dan OPC UA dengan Read success rate 100% pada profil yang dinamis. Median estimasi latensi monitoring lokal berada pada 12,39–14,62 ms, sedangkan monitoring online menghasilkan median estimasi latensi pembaruan telemetri 142,59–163,02 ms. Fungsi curtailment berhasil dijalankan secara lokal maupun online, dengan latensi end-to-end curtailment online 766–1251 ms. Implementasi pada PV inverter menunjukkan bahwa data inverter dapat dibaca dan perintah curtailment dapat diberikan tanpa memutus komunikasi. Dengan demikian, embedded gateway yang dikembangkan dapat digunakan untuk mendukung interoperabilitas monitoring dan curtailment PV inverter dalam lingkungan Smart Grid dan VPP.
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Virtual Power Plant (VPP) is an approach in Smart Grid systems for coordinating distributed energy resources (DERs), including distributed rooftop PV systems. However, the integration of PV inverters into VPP environments still faces interoperability challenges due to differences in communication protocols, data structures, and device characteristics. This research designs and implements an embedded gateway to integrate data and control functions of a SunSpec Modbus TCP-based PV inverter into OPC Unified Architecture (OPC UA), while extending online communication through MQTT and a VPS. The system was evaluated through local monitoring and curtailment, online monitoring and curtailment, communication security testing, and implementation on a PV inverter. The local monitoring results showed consistent digital data translation between Modbus TCP and OPC UA, with a 100% Read success rate under dynamic profiles. The median estimated local monitoring latency was 12.39–14.62 ms, while online monitoring produced a median estimated telemetry update latency of 142.59–163.02 ms. The curtailment function was successfully performed locally and online, with an online end-to-end curtailment latency of 766–1251 ms. The PV inverter implementation showed that inverter data could be read, and curtailment commands could be applied without interrupting communication. Therefore, the developed embedded gateway can be used to support interoperability for PV inverter monitoring and curtailment in Smart Grid and VPP environments.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Virtual Power Plant, Smart Grid, Embedded Gateway, OPC UA, Interoperabilitas, Interoperability |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1087 Photovoltaic power generation T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3030 Electric power distribution systems T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105 Data Transmission Systems |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | Dwi Mayasari |
| Date Deposited: | 18 Jul 2026 05:18 |
| Last Modified: | 18 Jul 2026 05:18 |
| URI: | http://repository.its.ac.id/id/eprint/135380 |
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