Modeling of 3-D tri-level power quality conditioner

Abstract

In this paper, a tri-level shunt connected converter is under consideration in a 3-phase 4-wired system as power quality compensators and motor drivers. A mathematical model of tri-level shunt converters is addressed in detail. A novel analysis of 3 dimension 3-level converters is achieved and the generalized theory of 3D space vector PWM including the 2D 2-level one is studied and developed such that 2D 2-level converters is a subset of 3 D one. A new approach control method is performed and called "sign cubical hysteresis control strategy" in 3-phase 4-wired systems. Simulation of 3-level 3-phase 4-wired system for motor drivers and power quality compensation are achieved.