VSC Input-Admittance Modeling and Analysis Above the Nyquist Frequency for Passivity-Based Stability Assessment
| Autor: | Raphael Finger, Lennart Harnefors, Frede Blaabjerg, Haofeng Bai, Xiongfei Wang |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Admittance business.industry 020209 energy 020208 electrical & electronic engineering Passivity 02 engineering and technology Dissipation Physics::Classical Physics Stabilization Converter control Sampling (signal processing) Control and Systems Engineering Control theory Control system Resonances 0202 electrical engineering electronic engineering information engineering Dissipative system Voltage-source converters Nyquist frequency Electrical and Electronic Engineering business Pulse-width modulation |
| Zdroj: | Harnefors, L, Finger, R, Wang, X, Bai, H & Blaabjerg, F 2017, ' VSC Input-Admittance Modeling and Analysis Above the Nyquist Frequency for Passivity-Based Stability Assessment ', I E E E Transactions on Industrial Electronics, vol. 64, no. 8, pp. 6362-6370 . https://doi.org/10.1109/TIE.2017.2677353 |
| DOI: | 10.1109/TIE.2017.2677353 |
| Popis: | The interconnection stability of a gridconnected voltage-source converter (VSC) can be assessed via the dissipative properties of its input admittance. In this paper, the modeling of the current control loop is revisited with the aim to improve the accuracy of the input-admittance model above the Nyquist frequency of the converter control system. Particular care is taken in the modeling of the pulsewidth-modulation and sampling processes. It is shown that, in order to eliminate the risk for destabilization of poorly damped grid resonances, dissipativeness of the input admittance is desirable not only for frequencies below, but also above, the Nyquist frequency. Validation is made by simulations and experiments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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