Predictive direct power control of three-phase boost rectifier
نویسنده
چکیده
In this paper, a new control scheme of an active boost rectifier has been presented. Proposed power control method uses a discretetime model of the converter to predict future behaviour for all possible voltage vectors. The most effective vector is chosen for next sampling period by minimizing a cost function. Presented Predictive Direct Power Control (P-DPC) scheme has been compared with classical Switching Table based Direct Power Control (ST-DPC) method. Laboratory results shows that predictive control in relation to classical ST-DPC method works properly at low sampling frequency and owns better dynamic and steady state performance.
منابع مشابه
Virtual Flux Based Direct Power Control on Vienna Rectifier
This paper proposes the virtual flux based direct power control for Vienna rectifier. No need for the input voltage sensors, the current regulation loop and PWM voltage modulation block along with the active and reactive power decoupling are some of the salient advantages of this method that make it suitable for controlling the conventional active rectifiers. However, due to the three-level nat...
متن کاملتحلیل و طراحی روش کنترل پیش بین برای یکسو کننده دارای اصلاح ضریب توان با مبدل ارتقاء یافتهء شپارد- تیلور
In this paper CCM/CVM operation and modeling of the improved Sheppard-Taylor based power factor correction (PFC) rectifier is presented and a predictive control strategy is introduced for this rectifier. Compared with conventional boost or buck–boost PFC’s, this topology allows a better current tracking at the AC side, with a relatively reduced voltage at the DC side. Consequently, ...
متن کاملAdvanced Three-Phase PFC Power Converters with Three-Phase Diode Rectifier and Four-Switch Boost Chopper
This paper presents an improved three-phase PFC power rectifier with a three-phase diode rectifier cascaded four-switch boost converter. Its operating principle contains the operating principle of two conventional three-phase PFC power rectifiers: one switch boost converter type and a two switch boost converter type. The operating characteristics of the four switch boost converter type three-ph...
متن کاملEvaluation of a Delta-Connection of Three Single-Phase Unity Power Factor Rectifier Modules ( -Rectifier) in Comparison to a Direct Three-Phase Rectifier Realization Part II – Component Stress Evaluation, Efficiency, Control
In this paper the voltage and current stress of a delta-connection of three single-phase boost-type unity power factor rectifier modules ( -Rectifier) is analyzed in order to perform a design comparable to a direct threephase three-level six-switch unity power factor (conventional) rectifier system. The conduction losses of the power semiconductors are calculated using analytical approximations...
متن کاملSliding Mode Current Controller for the Three Phase Single-stage Ac/dc Buck-boost Converters
This paper presents a sliding mode space vector current modulator for three-phase single stage AC/DC Buck-boost rectifiers. Using this fast and robust control method, this type of converters draw near sinusoidal input currents with high power factor. A Proportional Integral (PI) controller can, then, be adopted to regulate the rectifier output voltage. The references of the sliding mode current...
متن کامل