A New Switched DC-Link Capacitor-based Multi-level Converter ((SDCMLC)-M-2)

作者：Sathik Mohamed Ali Jagabar; Aleem Shady Hossam Eldeen Abdel; Kannan Ramani; Zobaa Ahmed Faheem

来源：Electric Power Components and Systems, 2017, 45(9): 1001-1015.

DOI：10.1080/15325008.2017.1319434

• harmonic distortion
• multi-level converters
• power quality
• power switches
• symmetric and asymmetric design
• nearest level modulation technique
• FPGA controller
• power electronics
• stepped output voltage
• DC
• AC power conversion
• reduced power components

At present, one of the most common techniques for high power conversion in medium-voltage applications is the use of cascaded multi-level converters. In this article, a new Switched DC-Link Capacitor Multi-level converter ((SDCMLC)-M-2) with considerably few numbers of power electronics switches (IGBTs) is proposed, where keeping the total harmonic distortion of the output voltage waveforms as low as possible is desired. The proposed topology is configured using two separate basic units. Each unit consists of four switches with a series-parallel combination of isolated DC sources. The performance of the presented topology for both configurations is described. The required number of switches, power diodes, gate driver circuits, and voltage stresses across the switches are compared with those of other recently published techniques. Furthermore, the operation and performance of the proposed (SDCMLC)-M-2 are illustrated with the aid of experimental results of a single-phase 11-level converter to clarify the viability of the proposed topology.

• 出版日期2017