Power system stabilization by SMES using current-fed PWM power conditioner

Abstract

The power-system-stabilizing ability of a superconducting magnetic energy storage (SMES) unit consisting of a superconducting coil and an AC/DC power conditioner has been examined experimentally using a model power system and a small SMES unit. A current-fed pulsewidth-modulated power conditioner was used to obtain maximum stabilizing effect by controlling active and reactive power simultaneously and independently. The power conditioner configuration, operating characteristics, and control scheme for power system stabilization are described. Experimental results showing the effectiveness of the approach are reported.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>