Divide-Conquer Transformer Learning for Predicting Electric Vehicle Charging Events Using Smart Meter Data

• URL: http://arxiv.org/abs/2403.13246v1
• Date: Wed, 20 Mar 2024 02:17:16 GMT
• Title: Divide-Conquer Transformer Learning for Predicting Electric Vehicle Charging Events Using Smart Meter Data
• Authors: Fucai Ke, Hao Wang,
• Abstract summary: We develop a home charging prediction method using historical smart meter data. We achieve consistently high accuracy of over 96.81% across different prediction time spans.
• Score: 4.820576346277399
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Predicting electric vehicle (EV) charging events is crucial for load scheduling and energy management, promoting seamless transportation electrification and decarbonization. While prior studies have focused on EV charging demand prediction, primarily for public charging stations using historical charging data, home charging prediction is equally essential. However, existing prediction methods may not be suitable due to the unavailability of or limited access to home charging data. To address this research gap, inspired by the concept of non-intrusive load monitoring (NILM), we develop a home charging prediction method using historical smart meter data. Different from NILM detecting EV charging that has already occurred, our method provides predictive information of future EV charging occurrences, thus enhancing its utility for charging management. Specifically, our method, leverages a self-attention mechanism-based transformer model, employing a ``divide-conquer'' strategy, to process historical meter data to effectively and learn EV charging representation for charging occurrence prediction. Our method enables prediction at one-minute interval hour-ahead. Experimental results demonstrate the effectiveness of our method, achieving consistently high accuracy of over 96.81\% across different prediction time spans. Notably, our method achieves high prediction performance solely using smart meter data, making it a practical and suitable solution for grid operators.

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