This paper presents the modeling, the detailed simulation and the test of an efficient medium voltage adjustable speed drive. The system consists on a three-level Neutral-Point Clamped (NPC) inverter supplied by a 12-pulse rectifier. To achieve a motor-friendly supply, an LC filter is inserted between inverter output terminals and induction motor terminals. A Direct Torque Control (DTC) tunes t...

We present CoolPaint, a system for computer painting that uses a props-based direct interaction technique. By instrumenting real paint brushes and developing corresponding digital models of the brushes, we allow the user to control digital tools by directly manipulating their physical counterparts. In addition, we use a tabletop display which allows the display space and interaction space to be...

In this paper a comprehensive approach is presented to improve power swings damping based on direct Lyapunov method. The approach combines superconducting magnetic energy storage (SMES) system with static synchronous compensator (STATCOM). Considering the energy absorption/injection ability of SMES, in transient states the combination exchanges both active and reactive powers with power system....