Dynamic and steady state analysis of a three phase buck rectifier

摘要

Current source rectifiers among other alternatives, offer severalnadvantages over line commutated rectifiers. Advantages includendisplacement power factor control and reduced line current harmonicndistortion. This paper analyzes the current source rectifier (CSR) inntransient and steady state, the models are developed in a synchronousnreference frame. The load behavior is characterized for two loadnconditions, resistive load or, in general, increasing current fornincreasing voltage, and constant output power, decreasing output currentnfor increasing voltage. Constant power operation can occur for anconverter system supplying a pulse width modulation (PWM) inverter withnhigh dynamics. Several static converter characteristics such as powernfactor, real and reactive power are analyzed for both types of load.nTransient characteristics are analyzed for both types of load by exactnsmall-signal model with full set of equations