PROJECT TITLE :

Active power compensation method forsingle-phase current source rectifier withoutextra active switches - 2016

ABSTRACT:

The existing active power decoupling methods for single-section current supply rectifiers (SCSRs) typically involve a heap of extra semiconductor devices or energy storage units, that is adverse to price and potency. This study proposes a full of life power decoupling method to buffer the double-frequency ripple power. The main circuit is configured by adding only a decoupling capacitor and a diode to the traditional SCSR. Compared with the present ones, the added components are minimised. The operating principle and modulation scheme are described. A closed-loop control technique is developed to boost twice the line frequency ripple power compensation performance. The guide for the selection of the decoupling capacitance is additionally discussed. Simulations and experimental results are presented to point out the effectiveness of the strategy.