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Stability Analysis of Converter-Grid Interaction using the Converter Input Admittance
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| Author(s) |
BONGIORNO Massimo; LUNDBERG Stefan; HARNEFORS Lennart |
| Abstract |
A grid-connected power electronic converter can cause local instabilities when interacting other subsystems - particularly poorly damped resonances - that are electrically nearby. However, oscillations at a certain frequency cannot build up due to the converter if its differential input admittance has positive conductance (real part) at that frequency, since power is then dissipated. Input-admittance expressions for a voltage-source converter are derived in this paper. By adjusting the controller parameters, the admittance can be shaped in order to get positive conductance in desired frequency regions. |
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| Filename: | 0460-epe2007-full-10190450.pdf |
| Filesize: | 562.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2008-01-11 by System |
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