An Improved Carrier-based SVPWM Method By the Redistribution of Carrier-wave Using Leg Voltage Redundancies in Generalized Cascaded Multilevel Inverter

Dae-Wook Kang; Yo-Han Lee; Bum-Seok Suh; Chang-Ho Choi; Dong-Seok Hyun

An Improved Carrier-based SVPWM Method By the Redistribution of Carrier-wave Using Leg Voltage Redundancies in Generalized Cascaded Multilevel Inverter

Vol. 1, No. 1, pp. 36-47, Apr. 2001

10.6113/JPE.2001.1.1.36

Carried based SVPWM

Switch utilization

Switch redundancy

Cascaded multilevel inverter

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Abstract

The carrier-based space vector pulse width modulation (SVPWM), which is considered as highly simple and efficient PWM technology, can be also used in multilevel inverters The method was originally designed for the two-level inverter and developed to the diode clamped multilevel inverter structure However it may be noted that it also cause bad switch utilization in cascaded multilevel inverter This paper introduces an improved carrier-based SVPWM scheme, which is fully suitable for cascaded multilevel inverter topologies because it can achieve the optimized switch utilization through the redistribution of the triangular carrier waves considering leg voltage redundancies while having the advantages of the conventional carrier-based SVPWM Using simulation and experimental results, the superior performance of new PWM method is shown.

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Cite this article

[IEEE Style]

D. Kang, Y. Lee, B. Suh, C. Choi, D. Hyun, "An Improved Carrier-based SVPWM Method By the Redistribution of Carrier-wave Using Leg Voltage Redundancies in Generalized Cascaded Multilevel Inverter," Journal of Power Electronics, vol. 1, no. 1, pp. 36-47, 2001. DOI: 10.6113/JPE.2001.1.1.36.

[ACM Style]

Dae-Wook Kang, Yo-Han Lee, Bum-Seok Suh, Chang-Ho Choi, and Dong-Seok Hyun. 2001. An Improved Carrier-based SVPWM Method By the Redistribution of Carrier-wave Using Leg Voltage Redundancies in Generalized Cascaded Multilevel Inverter. Journal of Power Electronics, 1, 1, (2001), 36-47. DOI: 10.6113/JPE.2001.1.1.36.