What is it about?
This paper reviews and summarizes a three-year effort by an IEEE Task Force focused on state estimation (SE) for Integrated Energy Systems (IES). It explains how to accurately determine the operating conditions of complex energy systems that combine electricity, heating, and natural gas networks. The paper discusses various modeling techniques—from traditional static and dynamic models in electric power systems to advanced methods for heating and gas systems—and compares these with established electric power system state estimation methods. It also identifies the key challenges, such as measurement placement, observability, and multi-scale dynamics, and offers insights and recommendations for future research in IES state estimation.
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Why is it important?
Accurate state estimation is critical for the safe, efficient, and reliable operation of modern energy systems. As power systems evolve to integrate multiple energy carriers (electricity, heat, natural gas) and incorporate high levels of renewable energy, their complexity increases significantly. This paper is important because it not only bridges the gap between traditional electric power state estimation and the challenges unique to integrated systems but also outlines future research directions to enhance real-time monitoring and control. Improved state estimation enables better decision-making, more effective dispatch, and ultimately contributes to a more resilient and sustainable energy infrastructure.
Perspectives
From my perspective, this work is a timely and comprehensive review that highlights both the progress made and the remaining challenges in state estimation for integrated energy systems. I am particularly impressed by how the task force has systematically addressed the unique issues posed by the interdependence of different energy subsystems and their varying time scales. The paper not only synthesizes current methods but also provides clear guidance for future research, making it a valuable resource for both researchers and practitioners striving to improve the resilience and efficiency of our increasingly complex energy grids.
Professor/Clarivate Highly Cited Researcher/Associate Editor of IEEE TSG/TII/TSTE Yang Li
Northeast Electric Power University
Read the Original
This page is a summary of: State Estimation for Integrated Energy Systems: Motivations, Advances, and Future Work, IEEE Transactions on Power Systems, January 2025, Institute of Electrical & Electronics Engineers (IEEE),
DOI: 10.1109/tpwrs.2024.3524323.
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