Modeling and Analysis of Buck Type Three Phase PWM Rectifier by Circuit DQ Transformation
نویسنده
چکیده
The characteristics of a buck type three phase PWM rectifier are analyzed using circuit DQ transform method. Exact DQ equivalent circuit model is induced and full set of equations are derived in explicit form. With the signal flow graph to describe the internal relations of converter operation, the unique behavior of the converter is analyzed on several practical view points. Various converter characteristics such as gain,real and reactive power,power factor and unity power factor condition including the effects of component values and load variations are analyzed as a function of modulation index and PWM phase angle variation.
منابع مشابه
Modeling and Analysis of Static and Dynamic Characteristics for Buck-Type Three-Phase PWM Rectifier - Power Electronics, IEEE Transactions on
The static and dynamic characteristics of buck-type three-phase pulse-width-modulation (PWM) rectifier are fully analyzed based on the dc and ac circuit models developed by the circuit DQ transformation. Various static converter characteristics such as gain, real and reactive power, power factor, and unity power factor conditions are completely analyzed. Transition characteristics are also anal...
متن کاملA Novel Stand-Alone Single-Phase Induction Generator Using a Three-Phase Machine and a Single-Phase PWM Inverter
A new type of single-phase stand-alone induction generator using a three-phase induction machine and a single-phase voltage-source PWM inverter is introduced. The generator scheme is capable of producing constant load frequency with a very well regulated output voltage. A small lead acid battery and a single-phase full diode-bridge rectifier are used to feed the inverter. The inverter feeds one...
متن کاملTransient and steady-state analysis of three-phase PWM buck rectifier
This study presents a qualitative and quantitative analysis of the output current response of a three-phase buck rectifier. The DC-side of the three-phase pulse-width modulation (PWM) buck rectifier is loaded by a typical series equivalent circuit comprising a resistor, an inductor and a constant voltage. An analytical solution of transient and steady-state processes is obtained using the diffe...
متن کاملDC Side Current Balancing of Two Parallel Connected Interleaved Three-Phase Three-Switch Buck-Type Unity Power Factor PWM Rectifier Systems
In this paper the active DC side current balancing of parallel connected three-phase buck-type rectifier systems is investigated using space vector calculus. Modulation schemes for the parallel connection are derived from the switching state sequences known for a single system and are comparatively evaluated by digital simulation. The independent current AC and DC side current paths are shown a...
متن کاملDC Characteristic Analysis of Three-Phase LC Filter- Uncontrollable Rectifier Using Circuit DQ Transformation
Abstract: The three-phase uncontrollable rectifiers are still widely applied, at present, in kinds of household appliances, because of its low cost, simple structure and excellent applicability. There are no LC filters in some simplified schematics. Sometimes, filter inductors are connected between rectifiers and power grids. For some higher requirements the three-phase passive power factor cor...
متن کامل