Hybrid Seven-Level Cascaded Active Neutral-Point-Clamped-Based Multilevel Converter Under SHE-PWM

作者：Pulikanti Sridhar R^*; Konstantinou Georgios; Agelidis Vassilios G

来源：IEEE Transactions on Industrial Electronics, 2013, 60(11): 4794-4804.

DOI：10.1109/TIE.2012.2218551

• Active neutral-point-clamped (ANPC) converter
• hybrid converter
• selective harmonic elimination pulsewidth modulation (SHE-PWM)
• voltage balancing

This paper presents the hybrid seven-level cascaded active neutral-point-clamped (ANPC)-based multilevel converter. The converter topology is the cascaded connection of a three-level ANPC converter and an H-bridge per phase. The voltage of the H-bridge is actively maintained to the required level through selection of the switching states of the converter. The topology is operated under selective harmonic elimination pulsewidth modulation (SHE-PWM), maintaining the switching frequency of the converter to a minimum. The operating principles, voltage balancing methods, and limitations of the converter are analyzed together with extensive simulation results of the topology. Experimental results from a low-power laboratory prototype are presented that verify the operation of the hybrid converter under SHE-PWM.

• 出版日期2013-11