Abstract The neutral point (NP) voltage variation is studied; the relationship between NP voltage variation and the overlap is analyzed, in this paper. And a new SPWM control method for three-level (3L) inverter is proposed. A closed loop system is built by altering the displacement of the carriers in the vertical direction in the proposed method, and the control structure is simple. It is easy to make the NP voltage balance by adjusting the overlap. Simulation results indicate that the proposed method can get a good NP voltage control effect.
Novel Neutral Point Potential Balance Control Scheme for NPC Three-Level Inverter
1st ed. 2016
2016-01-01
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Adaptive closed-loop state control system for a three-level neutral-point-clamped Z-source inverter
IET | 2016
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