Optimal design of multilevel Uninterruptible Power Supply

Author

Zareie Ardestani, Atefeh ; Mohamadian, Mostafa ; Yazdian Varjani, Ali

Author_Institution

Tarbiat Modares Univ., Tehran, Iran

fYear

2015

fDate

3-4 Feb. 2015

Firstpage

492

Lastpage

497

Abstract

In this paper, an optimization regarding power density and efficiency of 30kVA multilevel Uninterruptible Power Supply (UPS) is presented. The key design parameters, including switching frequency, converter topologies, number of levels, modulation schemes, and passive values, are selected by considering their impacts on losses, harmonics, and Electro Magnetic Interference (EMI). The optimization is performed for a switching frequency range of 10-40kHz and for two, three and four level converters and considering ferrite, amorphous, nanocrystalline and powder core materials. Also, The new concept of using Coefficient Diagram Method (CDM) controller in output filter design is introduced.

Keywords

electromagnetic interference; modulation; optimisation; power convertors; uninterruptible power supplies; CDM controller; EMI; UPS; amorphous materials; coefficient diagram method; converter topologies; electro magnetic interference; ferrite materials; frequency 10 kHz to 40 kHz; modulation schemes; multilevel uninterruptible power supply; nanocrystalline materials; powder core materials; power density; switching frequency; Inductance; Inverters; Oscillators; Power generation; Rectifiers; Reliability; Switches; core design; harmonic and EMI filter; loss calculation; multilevel converters; optimization; uninterruptible power supply;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drives Systems & Technologies Conference (PEDSTC), 2015 6th

Conference_Location

Tehran

Print_ISBN

978-1-4799-7652-2

Type

conf

DOI

10.1109/PEDSTC.2015.7093324

Filename

7093324