Title :
Control study of Vienna-type rectifiers for high DC-link voltage utilization and high power factor
Author :
Xiaoyang Yu ; Ke Jin ; Qianhong Chen ; Jie Chang
Author_Institution :
Jiangsu Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
In this paper, the design and implementation of a new control strategy for single-stage Vienna-type PWM rectifiers are presented to achieve high DC-link voltage utilization and high power density on the premise of high power factor (PF). The rectifier system is design for all-electric aircraft which has lower high voltage DC (HVDC) bus compared with the grid. At first, the three-phase three-wire non-regenerative Vienna-type rectifier is employed as the main circuit for its simple structure, high reliability, high PF and low voltage stress on the power switches. Then, the new control strategy based on traditional SPWM and interval truncation is theoretical analyzed to improve DC-link voltage utilization. Switching losses and current stress can be reduced. Finally, verification is provided using a combination of Matlab simulation and experimental results from a 3kW laboratory prototype.
Keywords :
PWM rectifiers; aircraft power systems; power factor; voltage control; DC-link voltage utilization; HVDC bus; Matlab simulation; all-electric aircraft; control strategy; current stress; high voltage DC bus; interval truncation; power 3 kW; power density; power factor; power switches; single-stage Vienna-type PWM rectifiers; switching losses; three-phase three-wire nonregenerative Vienna-type rectifier; traditional SPWM; Aircraft; Equations; Harmonic analysis; Modulation; Reactive power; Rectifiers; Voltage control; De-link voltage utilization; Vienna-type rectifier; all-electric aircraft; interval truncation;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2013 4th IEEE International Symposium on
Conference_Location :
Rogers, AR
DOI :
10.1109/PEDG.2013.6785634
