š¤ AI Summary
In residential communities, the aggregated value of electric vehicle (EV) vehicle-to-everything (V2X) servicesāincluding vehicle-to-building (V2B), vehicle-to-grid (V2G), and energy tradingāis constrained by multiple uncertainties (e.g., EV arrival patterns, building load, and renewable generation) and must simultaneously satisfy economic efficiency and distribution grid voltage security requirements.
Method: This paper proposes a dynamic receding-horizon optimization framework integrating a hybrid GRU-EncoderāTemporal Fusion Decoder forecasting model with a multi-agent cooperative scheduling mechanism.
Contribution/Results: It innovatively quantifies, for the first time, the dominant impact of EV arrival uncertainty on overall V2X value stacking performance. Validated on real-world AustralianāAmerican measurement data, the method significantly reduces community energy costs and achieves higher forecasting accuracy than benchmark modelsādemonstrating that precise EV arrival prediction is a critical prerequisite for maximizing integrated V2X benefits.
š Abstract
Electric vehicle (EV) coordination can provide significant benefits through vehicle-to-everything (V2X) by interacting with the grid, buildings, and other EVs. This work aims to develop a V2X value-stacking framework, including vehicle-to-building (V2B), vehicle-to-grid (V2G), and energy trading, to maximize economic benefits for residential communities while maintaining distribution voltage. This work also seeks to quantify the impact of prediction errors related to building load, renewable energy, and EV arrivals. A dynamic rolling-horizon optimization (RHO) method is employed to leverage multiple revenue streams and maximize the potential of EV coordination. To address energy uncertainties, including hourly local building load, local photovoltaic (PV) generation, and EV arrivals, this work develops a Transformer-based forecasting model named Gated Recurrent Units-Encoder-Temporal Fusion Decoder (GRU-EN-TFD). The simulation results, using real data from Australia's National Electricity Market, and the Independent System Operators in New England and New York in the US, reveal that V2X value stacking can significantly reduce energy costs. The proposed GRU-EN-TFD model outperforms the benchmark forecast model. Uncertainties in EV arrivals have a more substantial impact on value-stacking performance, highlighting the significance of its accurate forecast. This work provides new insights into the dynamic interactions among residential communities, unlocking the full potential of EV batteries.