IoT Thrust Seminar | Data-Driven Optimization for Human-Centric and Cost-Effective Building Operations
Supporting the below United Nations Sustainable Development Goals:支持以下聯合國可持續發展目標:支持以下联合国可持续发展目标:
Buildings account for 30% of global energy consumption while hosting occupants for 90% of their time, underscoring the urgent need for intelligent, adaptive control strategies that balance comfort and efficiency. Traditional building control systems rely on static comfort models that fail to capture real-time occupant preferences, leading to inefficient energy use. In this talk, I will present a novel data-driven framework that integrates online preference learning with closed-loop performance optimization to enable adaptive and cost-effective building operations. By leveraging machine learning and optimization techniques, this approach dynamically adjusts control parameters—such as heating power limits—based on real-time occupant feedback and system performance. A case study in a residential setting demonstrates electricity bill savings of up to 27% compared to default controllers, showcasing the practical impact of our methods. Furthermore, our work won the 2024 BOPTEST Challenge for Smart Building HVAC Control, setting a new benchmark for intelligent building energy management. Beyond this application, I will discuss how our data-driven methodologies can be extended to broader challenges in energy systems, human-in-the-loop optimization, and autonomous decision-making.
Wenjie Xu is a final-year Ph.D. student at EPFL, supervised by Prof. Colin N. Jones and Dr. Bratislav Svetozarevic. He received his bachelor's degrees in Electronic Engineering and Mathematics from Tsinghua University in 2018, and his MPhil degree in Information Engineering from The Chinese University of Hong Kong in 2020, under the supervision of Prof. Minghua Chen. His research lies at the intersection of optimization, machine learning, and control, with a focus on efficient design and operations of cyber-physical-human systems, particularly in building systems. He is a recipient of the Chinese Government Award for Outstanding Self-financed Students Abroad in recognition of his research contributions.