Decentralized Charging Control of Electric Vehicles in Residential Distribution Networks

作者：Mingxi Liu, Phillippe K. Phanivong, Yang Shi, Duncan S. Callaway · 发表于：IEEE Transactions on Control Systems Technology · 年份：2017 · DOI：10.1109/tcst.2017.2771307 · 被引用次数：166 · 研究领域：Electric Vehicles and Infrastructure、Advanced Battery Technologies Research、Electric and Hybrid Vehicle Technologies

Electric vehicle (EV) charging can negatively impact electric distribution networks by exceeding equipment thermal ratings and causing voltages to drop below standard ranges. In this paper, we develop a decentralized EV charging control scheme to achieve “valley-filling” (i.e., flattening demand profile during overnight charging), meanwhile meeting heterogeneous individual charging requirements and satisfying distribution network constraints. The formulated problem is an optimization problem with a nonseparable objective function and strongly coupled inequality constraints. We propose a novel shrunken-primal-dual subgradient algorithm to support the decentralized control scheme, derive conditions guaranteeing its convergence, and verify its efficacy and convergence with a representative distribution network model.