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Master's Thesis
Author of thesis: Bc. Samuel Vaculík
Acad. year: 2025/2026
Supervisor: doc. Ing. Jakub Arm, Ph.D.
Reviewer: doc. Ing. Zdeněk Bradáč, Ph.D.
This master’s thesis presents the design and implementation of an edge device for a residential photovoltaic power plant. The device is built on the ESP32-S3 platform and provides monitoring and control of a GoodWe hybrid inverter via the Modbus TCP protocol. Acquired telemetry data is transmitted to the Microsoft Azure IoT Hub cloud platform usingt he MQTT protocol. The device also incorporates a Zigbee gateway based on the ESP32-H2, enabling control of smart plugs including electrical measurement. To ensure system reliability, data is backed up locally to an SD card during internet outages and automatically retransmitted upon connection restoration. The control logic is implemented within the ESP-IDF framework using FreeRTOS and supports multiple operating modes, including manual and sequential inverter control. System functionality was verified both using a Modbus simulator and on a real photovoltaic installation.
PV system, PV inverter, ESP32, Modbus TCP, Zigbee, Microsoft Azure, IoT Hub, MQTT, GoodWe, JSON, Wi-Fi, FreeRTOS, SD card, RTC, ESP-IDF
Date of defence
09.06.2026
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Student odprezentoval práci a zodpověděl otázky oponenta. Na podnět komise diskutoval bezpečnost navrženého sytému ve srovnání s komerční platformou.
Language of thesis
Czech
Faculty
Fakulta elektrotechniky a komunikačních technologií
Department
Department of Control and Instrumentation
Study programme
Cybernetics, Control and Measurements (MPC-KAM)
Composition of Committee
prof. Ing. Michal Prauzek, Ph.D. (předseda) doc. Ing. Petr Beneš, Ph.D. (místopředseda) doc. Ing. Jakub Arm, Ph.D. (člen) Ing. Martin Čala, Ph.D. (člen) Ing. Jaroslav Lepka, Ph.D. (člen) prof. Ing. Radomil Matoušek, Ph.D. (člen) Ing. Lukáš Pohl, Ph.D. (člen)
Supervisor’s reportdoc. Ing. Jakub Arm, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportdoc. Ing. Zdeněk Bradáč, Ph.D.
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová