Decentralised PEV charging coordination to absorb surplus wind energy via stochastically staggered dual-tariff schemes considering feeder-level regulations

作者：Liu, Peng^*; Yu, Jilai; Mohammed, Eissa

来源：IET Generation Transmission & Distribution, 2018, 12(15): 3655-3665.

DOI：10.1049/iet-gtd.2017.0780

• power generation dispatch
• power generation scheduling
• wind power plants
• tariffs
• electric vehicle charging
• stochastic processes
• decentralised PEV charging coordination
• electric power industry
• wind energy curtailment
• local coordination model
• cost minimisation
• charging pattern
• aggregated charging load model
• feeder currents
• bus voltages
• SCC algorithm
• security check and correction algorithm
• CCIUC model
• charging coordination integrated unit commitment model
• transmission level

Wind energy curtailment has increasingly concerned the electric power industry. To absorb the surplus wind energy, a decentralised programme is presented via stochastically staggered dual tariffs for the coordination of plug-in electric vehicle (PEV) chargers. The programme consists of two stages: day ahead and real time. In the day-ahead stage, two steps are performed. First, the dual-tariff schemes are identified at the transmission level based on a charging coordination integrated unit commitment (CCIUC) model. Second, they are adjusted at the feeder level via a security check and correction (SCC) algorithm to ensure bus voltages, feeder currents and losses within desired limits. The CCIUC model and SCC algorithm incorporate a novel aggregated charging load model to grasp the integrated knowledge of PEVs in reacting to dual-tariff signals in an ex ante manner, which avoids real-time iterations between PEVs and systems. In the real-time stage, the individual charging pattern is produced for cost minimisation at the charging device level by a novel local coordination model. Simulation results show that the proposed program enables: (i) enhanced efficiencies on absorbing surplus wind energy at the transmission level; (ii) well considerations on satisfying regulation requirements at the feeder level.

• 出版日期2018-8-28
• 单位哈尔滨工业大学