Print Email Facebook Twitter A Carrier-based Two-Phase-Clamped DPWM Strategy With Zero-Sequence Voltage Injection for Three-Phase Quasi-Two-Stage Buck-Type Rectifiers Title A Carrier-based Two-Phase-Clamped DPWM Strategy With Zero-Sequence Voltage Injection for Three-Phase Quasi-Two-Stage Buck-Type Rectifiers Author Xu, J. (Shanghai Jiao Tong University) Soeiro, Thiago B. (TU Delft DC systems, Energy conversion & Storage; TU Delft Electrical Sustainable Energy) Wu, Y. (TU Delft DC systems, Energy conversion & Storage) Gao, Fei (Shanghai Jiao Tong University) Wang, Y. (TU Delft Statistics; Shanghai Jiao Tong University) Tang, Houjun (Shanghai Jiao Tong University) Bauer, P. (TU Delft DC systems, Energy conversion & Storage) Department Electrical Sustainable Energy Date 2022 Abstract A three-phase buck-type rectifier features a step-down ac-dc conversion function, which is considered as a prominent solution for electric vehicle chargers and telecommunication systems integrated to the grid above 380 V line to line. However, traditional solutions for those applications employ cascaded architectures with an ac-dc boost-type stage and a dc-dc buck-type stage, which may suffer from high switching losses and large dc-link capacitor volume. To relieve this issue, a straightforward carrier-based two-phase-clamped discontinuous pulsewidth modulation (DPWM) strategy with generalized zero-sequence voltage injection is proposed in this article for the commonly employed cascaded circuit. This method can stop the switching actions in the front-end stage during two-third of the grid period, which can yield to the best switching loss reduction. The operations of the front- and back-end converter stages become highly coupled to each other, which reduces the size requirement of the capacitor in the dc link. Therefore, the equivalent circuit behaves as a quasi-two-stage buck-type rectifier allowing an enhancement of the system power density by improving power conversion efficiency and by reducing the volume of passive components and heat sink. The proposed carrier-based two-phase-clamped DPWM strategy is described, analyzed, validated, and compared with different pulsewidth modulation methods on PLECS-based simulation and a 5-kW prototype. Subject buck-type rectifierCapacitorsCarrier-baseddiscontinuous pulsewidth modulation (DPWM)Phase modulationPulse width modulationSwitchesSwitching lossVoltageVoltage controlzero-sequence voltage injection To reference this document use: http://resolver.tudelft.nl/uuid:4d78313f-452a-4986-9ea0-9f19517e4cfe DOI https://doi.org/10.1109/TPEL.2021.3130677 ISSN 0885-8993 Source IEEE Transactions on Power Electronics, 37 (5), 5196-5211 Part of collection Institutional Repository Document type journal article Rights © 2022 J. Xu, Thiago B. Soeiro, Y. Wu, Fei Gao, Y. Wang, Houjun Tang, P. Bauer Files PDF A_Carrier_based_Two_Phase ... ifiers.pdf 24.73 MB Close viewer /islandora/object/uuid:4d78313f-452a-4986-9ea0-9f19517e4cfe/datastream/OBJ/view