Abstract
This paper focuses on the control and modulation of a three-level Neutral Point Clamped (3L-NPC) back-to-back full scale converter for a 10 MW direct-drive wind turbine, equipped with a Permanent Magnet Synchronous Generator (PMSG). Emphasis is oriented towards the investigation of the power losses in the semiconductor devices of three-level converter adopting continuous and discontinuous PWM modulation strategies. This aspect strongly influences the operation of the converter and directly affects its efficiency. Therefore, a simulation platform is developed in Matlab/Simulink and PLECS environment to analyse the dynamics of the system using different kinds of modulation strategies, identifying which methods can improve the converter efficiency. It is concluded that 60° discontinuous PWM modulation strategies show less power losses in the semiconductor devices and will increase the overall efficiency of the converter.
| Original language | English |
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| Title of host publication | Proceedings of the 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems |
| Number of pages | 8 |
| Publisher | IEEE Press |
| Publication date | 2012 |
| Pages | 751-758 |
| ISBN (Print) | 978-1-4673-2021-4 |
| ISBN (Electronic) | 978-1-4673-2022-1 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 3rd International Symposium on Power Electronics for Distributed Generation Systems - Aalborg Congress & Culture Center, Aalborg, Denmark Duration: 25 Jun 2012 → 28 Jun 2012 |
Conference
| Conference | 3rd International Symposium on Power Electronics for Distributed Generation Systems |
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| Location | Aalborg Congress & Culture Center |
| Country/Territory | Denmark |
| City | Aalborg |
| Period | 25/06/2012 → 28/06/2012 |