The growing complexity of modern power electronic systems necessitates intuitive and efficient human-machine interfaces, particularly in research and industrial applications involving high-power and multi-modular systems. This thesis presents the development of a Graphical User Interface (GUI) for realtime monitoring and control of a Modular Multilevel Converter (MMC) hardware platform. The developed GUI application, deployed on a Seeed Studio reTerminal DM touchscreen, establishes stable Ethernet communication with an existing MMC controller based on a TMS320F28379D microcontroller and Wiznet W5300 Ethernet chip. Built on the Qt Quick framework, the system combines the declarative power of Qt Modelling Language (QML) for responsive UI design with a high-performance C++ backend for critical computational tasks. A dual-threaded architecture ensures robust operation by isolating communication and data processing from UI rendering, enabling responsive performance under high-frequency data transmission. The implemented solution provides comprehensive functionalities including realtime parameter adjustment, dynamic waveform visualization, and system state monitoring. Experimental results show that the system reliably handles highfrequency data streams while maintaining stable operation, demonstrating its capability to meet the requirements in practical monitoring and control scenarios. This work not only documents the design and realization of a practical, intuitive interface for complex power electronics systems but also serves as a step-by-step guide for researchers and engineers. It aims to facilitate the reproduction of similar applications and inspire innovative solutions in the domain of industrial control and monitoring.
Rao Xie (Wed,) studied this question.