TY - GEN
T1 - Active voltage-ripple compensation in an integrated generator-rectifier system
AU - Huynh, Phuc
AU - Banerjee, Arijit
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - A series-stacked ac-to-dc converter integrated into a multi-port permanent-magnet-synchronous generator has been shown to be beneficial in achieving high conversion efficiency while reducing the size and rating requirements for the active rectifier [1]. The major drawback of this architecture is the bulky filter capacitors used at the passive rectifiers. These filters increase system size, weight and cost, reduce the overall reliability and cause a low power factor at the passive rectifier ac-port. This paper presents an alternative approach: using the active rectifier to compensate the capacitor-less passive rectifier voltage ripple. Simulation on a 6.25 kV, 3 MW dc bus system shows that by active compensation, the dc-bus voltage ripple is reduced to 2.4% of the dc-bus voltage. In addition, the passive rectifier ac-source power factor is improved to 0.95 compared to 0.8 using the conventional method with filter capacitors. Experimental results show the effectiveness of the proposed method for voltage ripple compensation.
AB - A series-stacked ac-to-dc converter integrated into a multi-port permanent-magnet-synchronous generator has been shown to be beneficial in achieving high conversion efficiency while reducing the size and rating requirements for the active rectifier [1]. The major drawback of this architecture is the bulky filter capacitors used at the passive rectifiers. These filters increase system size, weight and cost, reduce the overall reliability and cause a low power factor at the passive rectifier ac-port. This paper presents an alternative approach: using the active rectifier to compensate the capacitor-less passive rectifier voltage ripple. Simulation on a 6.25 kV, 3 MW dc bus system shows that by active compensation, the dc-bus voltage ripple is reduced to 2.4% of the dc-bus voltage. In addition, the passive rectifier ac-source power factor is improved to 0.95 compared to 0.8 using the conventional method with filter capacitors. Experimental results show the effectiveness of the proposed method for voltage ripple compensation.
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U2 - 10.1109/APEC.2019.8721958
DO - 10.1109/APEC.2019.8721958
M3 - Conference contribution
AN - SCOPUS:85067092287
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 3199
EP - 3206
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -