GRID INTERACTIVE SIMULATOR FOR ELECTRIC VEHICLE

摘要

PURPOSE: An electric vehicle system interconnection simulator is provided to guarantee stability or reliability of an electric vehicle charge system and to save development or test cost. CONSTITUTION: A first computer(110) mounts a power system model, calculates system voltage using the power system model and outputs a system voltage command corresponding to the system voltage in real time. A bidirectional AC/AC converter(130) is supplied from a three-phase power supply unit(120) and outputs system voltage to a charge system(140) according to the system voltage command outputted in the first computer. The charge system consists of an AC/DC converter capable of bidirectional power conversion. When charging a battery, the charge system converts three-phase AC voltage supplied from the bidirectional AC/AC converter into DC current and charges a battery. A battery simulator(150) is charged by receiving system voltage from the charge system. [Reference numerals] (110) First computer(Electric system model); (120) Three-phase power supply unit; (130) Bidirectional AC/AC converter; (140) Charge system; (150) Battery simulator; (AA) Supply current; (BB) System voltage command