A VSC Transmission System Using Flying Capacitor Multilevel Converters and Selective Harmonic Elimination PWM Control
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Lie Xu
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.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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- Application of Loop Frame of Reference to Power Flow Tracing and Loss Allocation
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Articles in the same Issue
- Article
- Optimal Power Flow Solution: a GA-Fuzzy System Approach
- Design of a Series Compensator for Enhancing Power Quality during the Starting of an Induction Motor
- Application of Loop Frame of Reference to Power Flow Tracing and Loss Allocation
- A VSC Transmission System Using Flying Capacitor Multilevel Converters and Selective Harmonic Elimination PWM Control
- Application of the DC-Ripple Reinjection Concept to Forced-Commutated Conversion
- Controlling Inrush Currents in Inductively Coupled Power Systems
- Genetic Algorithm and Fuzzy Logic Based Optimal Location of Facts Device in a Power System Network
