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Global stability of modular multilevel converters with measurement lag and circulating-current control
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| Author(s) |
Lennart HARNEFORS, Antonios ANTONOPOULOS, Hans-Peter NEE |
| Abstract |
In this paper, previously developed stability results for open-loop sum-capacitor-voltage control of modular multilevel converters are extended. To obtain improved damping, circulating-current feedback is included in the control law. A first-order measurement lag is added to this feedback. With these additions, global asymptotic stability is proven. Careful consideration of the online control-law computation is given, since this is the most critical part of the control system. Experimental results verify the theory. |
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| Filename: | 0649-epe2013-full-14442532.pdf |
| Filesize: | 104.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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