Razvoj simulatorja za analizo komunikacije referenčnega hibridnega fotonapetostnega sistema po protokolu Modbus

Jančar, Andraž (author), Zajc, Matej (mentor)

V diplomskem delu preglejte teoretične osnove hibridnih fotonapetostnih sistemov z baterijskimi hranilniki ter komunikacijski protokol Modbus (RTU in TCP). Na podlagi laboratorijskih meritev, pridobljenih med strokovno prakso v podjetju Smart Energy Lab v Lizboni, razvijte modularni simulator v programskem jeziku Python, ki omogoča ponovljivo analizo komunikacijskih scenarijev ter primerjavo simulacijskih rezultatov z realnimi odzivi razsmernika. Opravite analizo testnih protokolov za prisilno polnjenje in praznjenje baterije, ovrednotite odstopanja ter predstavite rezultate.

• Language: Slovenian
• Keywords: Zeleni prehod, hibridni fotonapetostni sistem, Huawei SUN2000, LUNA2000, Modbus RTU, Modbus TCP, baterijski hranilnik, SunSpec, OCPP 1.6, simulator, Python, React/Node, IKT v energetiki.
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2026
• PID: 20.500.12556/RUL-184224
• COBISS.SI-ID: 283380995
• Publication date in RUL: 02.07.2026

Secondary language

• Language: English
• Title: Development of a Simulator for Analyzing the Communication of a Reference Hybrid Photovoltaic System via the Modbus Protocol

Abstract

In the thesis, review the theoretical foundations of hybrid photovoltaic systems with battery storage and the Modbus communication protocol (RTU and TCP). Based on laboratory measurements obtained during a professional internship at Smart Energy Lab in Lisbon, develop a modular simulator in Python that enables repeatable analysis of communication scenarios and comparison of simulation results with real inverter responses. Perform an analysis of test protocols for forced battery charging and discharging, evaluate the deviations, and present the results.

• Keywords: Green transition, hybrid photovoltaic system, Huawei SUN2000, LUNA2000, Modbus RTU, Modbus TCP, battery storage, SunSpec, OCPP 1.6, simulator, Python, React/Node, ICT in energy.