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A Sub-module Capacitor Voltage Balancing Scheme for the Alternate Arm Converter (AAC)
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| Author(s) |
Ewan FARR, Jon CLARE, Alan WATSON, Ralph FELDMAN, Pat WHEELER |
| Abstract |
A per-phase sub-module capacitor voltage balancing scheme for the Alternate Arm Converter (AAC) is proposed. Leg balancing regulates the sum of sub-module capacitor voltages in a leg to its set-point. Armbalancing regulates each sub-module capacitor voltage to the nominal sub-module capacitor voltage.Additional converter control requirements and the modulation scheme are also discussed. The controland modulation scheme has been verified by simulation. The leg balancing control loop was designed tobe critically damped to primarily limit oscillations in the output variable caused by changes in AC-sidepower demands; the simulation results indicated this specification was met. |
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| Filename: | 0657-epe2013-full-16590520.pdf |
| Filesize: | 1.952 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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