Abstract
A transmission system based on voltage-source three-level flying capacitor (FC) multilevel converters with selective harmonic elimination pulse-width modulation (SHE-PWM) control is presented in this paper. The generation of the switching patterns for each power device is described taking into account the natural balancing of the FC voltages. A new and simple control method for balancing the FC voltages of the FC converter when using SHE-PWM is proposed which is based on the small change of the firing angle according to the load current polarity. Implementation of the SHE-PWM with capacitor voltage balancing is provided. Simulation studies for a 300MW/+/- 150kV transmission system are presented to confirm the satisfactory performance of the proposed system.
Original language | English |
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Pages | 1176-1181 |
Number of pages | 6 |
DOIs | |
Publication status | Published - Nov 2005 |
Event | International Power Engineering Conference (IPEC) - Singapore, Singapore Duration: 29 Nov 2005 → 2 Dec 2005 |
Conference
Conference | International Power Engineering Conference (IPEC) |
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Country/Territory | Singapore |
City | Singapore |
Period | 29/11/05 → 2/12/05 |
Keywords
- vsc transmission
- flying capacitor
- multilevel converters
- harmonic elimination
- pwm control