Peng, J.Q., Fang, B.M., Ye, H.P., Ma, Y.L., Ai, B. and Luo, J. 2026. Multi-Step Prediction and Optimization of Harmonic Power Quality in Active Distribution Network of Urban Energy Internet Driven by PatchTST. Advanced Electromagnetics. 15, 3 (Aug. 2026), 5237–5249. DOI:https://doi.org/10.7716/aem.v15i3.3579.