A Systematic Topology Evaluation Methodology for High-Density Three-Phase PWM AC-AC Converters

作者：Lai Rixin^*; Wang Fei; Burgos Rolando; Pei Yunqing; Boroyevich Dushan; Wang Bingsen; Lipo Thomas A; Immanuel Vikram D; Karimi Kamiar J

来源：IEEE Transactions on Power Electronics, 2008, 23(6): 2665-2680.

DOI：10.1109/TPEL.2008.2005381

• High density
• SiC devices
• switching frequency
• three-phase ac-ac converter

This paper presents a systematic evaluation approach of three-phase pulsewidth-modulated (PWM) ac-ac converter topologies for high-density applications. All major components and subsystems in a converter are considered and the interdependence of all the constraints and design parameters is systematically studied. The key design parameters, including switching frequency, modulation scheme, and passive values, are selected by considering their impacts on loss, harmonics, electromagnetic interference (EMI), control dynamics and stability, and protection. The component selection criteria as well as the physical design procedures are developed from the high-density standpoint. The concept of using the same inductor for harmonic suppression and EMI filtering is introduced in the design. With the proposed methodology, four converter topologies, a back-to-back voltage source converter (BTB-VSC), a nonregenerative three-level boost (Vienna-type) rectifier plus voltage source inverter (NTR-VSI), a back-to-back current source converter (BTB-CSC), and a 12-switch matrix converter, are analyzed and compared for high specific power using SiC devices. The evaluation results show that with the conditions specified in this paper, BTB-VSC and NTR-VSI have considerably lower loss, resulting in higher specific power than BTB-CSC and the matrix converter. The proposed methodology can he applied to other topologies with different comparison metrics and can be a useful tool for high-density topology selection.

• 出版日期2008-11
• 单位西安交通大学