An investigation of high efficiency DC-AC converters for LVDC distribution networks

Yanni Zhong, Stephen Finney, Derrick Holliday

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

Low voltage DC (LVDC) distribution systems offer improved efficiency and reliability in smart grids. A major challenge facing LVDC systems is DC-AC conversion. A study of an effective low voltage DC-AC converter is therefore presented. Modular Multilevel Converter (MMC) performance (in particular power loss) is compared with a conventional IGBT-based 2-level converter and its advantages highlighted. A phase-shifted sinusoidal PWM based individual voltage balancing strategy for the MMC is presented. A proportional-resonant controller is introduced to eliminate the 2nd harmonic circulating current in the H-bridge MMC converter.

LanguageEnglish
Title of host publication7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
Subtitle of host publicationProceedngs
Pages1-6
Number of pages6
Volume2014
DOIs
Publication statusPublished - 1 Jan 2014
Event7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014 - Manchester, United Kingdom
Duration: 8 Apr 201410 Apr 2014

Conference

Conference7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
CountryUnited Kingdom
CityManchester
Period8/04/1410/04/14

Fingerprint

Electric power distribution
Electric potential
Insulated gate bipolar transistors (IGBT)
Pulse width modulation
Controllers

Keywords

  • capacitor voltage balance control
  • loss calculation
  • LVDC
  • MMC

Cite this

Zhong, Y., Finney, S., & Holliday, D. (2014). An investigation of high efficiency DC-AC converters for LVDC distribution networks. In 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014): Proceedngs (Vol. 2014, pp. 1-6) https://doi.org/10.1049/cp.2014.0283
Zhong, Yanni ; Finney, Stephen ; Holliday, Derrick. / An investigation of high efficiency DC-AC converters for LVDC distribution networks. 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014): Proceedngs. Vol. 2014 2014. pp. 1-6
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Zhong, Y, Finney, S & Holliday, D 2014, An investigation of high efficiency DC-AC converters for LVDC distribution networks. in 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014): Proceedngs. vol. 2014, pp. 1-6, 7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014, Manchester, United Kingdom, 8/04/14. https://doi.org/10.1049/cp.2014.0283

An investigation of high efficiency DC-AC converters for LVDC distribution networks. / Zhong, Yanni; Finney, Stephen; Holliday, Derrick.

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014): Proceedngs. Vol. 2014 2014. p. 1-6.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Zhong Y, Finney S, Holliday D. An investigation of high efficiency DC-AC converters for LVDC distribution networks. In 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014): Proceedngs. Vol. 2014. 2014. p. 1-6 https://doi.org/10.1049/cp.2014.0283