Refine
Document Type
Has Fulltext
- yes (1)
Is part of the Bibliography
- no (1)
Language
- English (1) (remove)
Keywords
- Distributed power generation (1)
- Energieversorgung (1)
- Frequency control (1)
- Frequenzdynamik (1)
- Frequenzsignale (1)
- Frequenzstabilität (1)
- Massenträgheit (1)
- Parameter estimation (1)
- Power plants (1)
- Power system control (1)
Institute
The ongoing and unprecedented transformation of power systems leads to a reduction in the number of conventional power plants, which are the classical actuators of the grid. In addition, this development results in a decreasing system inertia, which is expected to yield faster frequency dynamics. Therefore power-electronics-interfaced units have to take over system control tasks and, in particular, frequency control. For this purpose, accurate and fast estimation algorithms for time-varying frequency signals are needed. Motivated by this fact, we propose a time-varying parameter estimator and a tuning criterion, which for sufficiently small initial estimation errors allows to reconstruct the time-varying frequency signal of a symmetric three-phase waveform in finite time. The proposed estimator is derived by using a time-varying version of the super twisting algorithm and its performance is illustrated via numerical examples.