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EnergyDiff: Universal Time-Series Energy Data Generation Using Diffusion Models
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AI
DOI：10.1109/TSG.2025.3581472.png)
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Abstract
En 中文
High-resolution time series data are crucial for the operation and planning of energy systems such as electrical power systems and heating systems. Such data often cannot be shared due to privacy concerns, necessitating the use of synthetic data. However, high-resolution time series data is difficult to model due to its inherent high dimensionality and complex temporal dependencies. Leveraging the recent development of generative AI, especially diffusion models, we propose EnergyDiff, a universal data generation framework for energy time series data. EnergyDiff builds on state-of-the-art denoising diffusion probabilistic models, utilizing a proposed denoising network dedicated to high-resolution time series data and introducing a novel Marginal Calibration technique. Our extensive experimental results demonstrate that EnergyDiff achieves significant improvement in capturing the temporal dependencies and marginal distributions compared to baselines, particularly at the 1-minute resolution. EnergyDiff‘s universality is validated across diverse energy domains (e.g., electricity demand, heat pump, PV), multiple time resolutions (1 minute, 15 minutes, 30 minutes and 1 hour), and at both customer and transformer levels.
Keywords:
Generative models
load profile
data generation
time-series data
Journal
IF:
9.8
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5.7K
Citations:
4.3W
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