PROJECT TITLE :

Control of a Single-Stage Three-Phase Boost PowerFactor Correction Rectifier - 2016

ABSTRACT:

Advances in Power Electronics are enabling More Electrical Aircrafts (MEAs) to switch pneumatic systems with electrical systems. Active power factor correction (PFC) rectifiers are used in MEAs to rectify the output voltage of the three-phase AC-DC boost converter, whereas maintaining a unity input power issue. Several existing control methods implement PI compensators, with slow response times, in their voltage and current loops. Alternatively, computationally expensive nonlinear controllers can be chosen to come up with input currents with high power factor and low total harmonic distortion (THD), but they will would like to be operated at high switching frequencies due to relatively slower execution of control loop. During this work, a unique management strategy is proposed for a 3-section, single-stage boost-type rectifier that is capable of tight and quick regulation of the output voltage, while simultaneously achieving unity input power factor, while not constraining the operating switching frequency. The proposed control strategy is implemented, using one voltage-loop PI controller and a linearized transfer perform of duty-ratio to input current, for inner loop current control. A 1.5 kW three-section boost PFC prototype is designed and developed to validate the proposed management algorithm. The experimental results show that an input power issue of zero.992 and a tightly regulated DC link voltage with 3% ripple can be achieved.