Initialization of DFIG wind turbines with a phasor-based approach
| Autor: | Joaquin Pedra, Alejandro Rolan |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial, Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica, Universitat Politècnica de Catalunya. QSE - Qualitat del Subministrament Elèctric, Universitat Politècnica de Catalunya. SAC - Sistemes Avançats de Control, Universitat Politècnica de Catalunya. CS2AC-UPC - Supervision, Safety and Automatic Control |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Energia eòlica
Wind power Renewable Energy Sustainability and the Environment business.industry Computer science Energies [Àrees temàtiques de la UPC] 020209 energy 020208 electrical & electronic engineering Phasor Initialization 02 engineering and technology Doubly fed induction generator (DFIG) law.invention Control theory law Doubly fed induction generator dfig 0202 electrical engineering electronic engineering information engineering business Doubly fed electric machine Wind energy Steady-state conditions |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | The objective of this paper is to propose a simple approach to solve the steady state of a wind turbine (WT) equipped with a doubly-fed induction generator (DFIG) which can be used to initialize dynamic studies of the machine. The idea is to model the rotor-side converter (RSC) as a constant current source connected to the rotor of the DFIG. The resulting equivalent circuit consists of a voltage source in series with a reactance, which makes it possible to obtain simple phasor expressions that can be used to obtain the Park components of the variables. The proposed method is compared with the traditional Newton-Raphson algorithm, showing that it is easier and faster to implement, as it makes use of the phasor expressions and it does not require an iterative process to obtain the final solution. Finally, the results of the proposed method are used to simulate a 2 MW DFIG-based WT under three-phase faults, considering three different WT operating points. In these simulations, the idea of constant rotor current is extrapolated to the entire event. The simulated results show that both current at torque peaks are reduced. The analytical study and the simulations have been carried out in MATLAB. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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