On a DC micro-grid incorporating with electric vehicle as movable energy storage source

Abstract

This paper presents the establishment of a small DC microgrid incorporating with electric vehicle (EV) as a movable energy storage source. The developed micro-grid consists of wind permanent-magnet synchronous generator (PMSG) and photovoltaic (PV) source, battery/super-capacitor/flywheel hybrid energy storage system and grid-connected single-phase three-wire load inverter. Through properly design and control, good operation performances are preserved. And the microgrid-to-grid (M2G) and G2M can be successfully conducted with good power quality. As to the developed EV interior permanent-magnet synchronous motor (IPMSM) drive, the super-capacitor (SC) auxiliary storage is equipped to assist the battery source in intermittent energy conversion. Satisfactory acceleration/deceleration/reversible and regenerative braking operation characteristics are obtained, and the successful microgrid-to-vehicle (M2V) and V2M interconnected operations of the EV and micro-grid are achieved.

Applications of Switch-Mode Rectifiers on Micro-grid Incorporating with EV and BESS

“…Moreover, by regarding EV as a movable energy storage device and performing its interconnected operations to a microgrid (M2V/V2M) [7,8] or utility grid (G2V/V2G) [9][10][11][12][13][14], the effectiveness in achieving these goals will be more prominent. Among the commonly used motors, permanent-magnet synchronous motor (PMSM) is one of the commonly used motors for commercialized EVs [15,16], owing to its many distinguished features.…”