enhancing lvrt of dfig by using a superconducting current limiter on rotor circuit
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2015
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Abstract
This paper have studied the dynamic of a 2.0 MW Doubly Fed Induction Generator (DFIG) during a severe voltage sag. Using the dynamic model of a DFIG, it was possible to determine the current, Electromagnetic Force and flux behavior during three-phase symmetrical voltage dip. Among the technologies of wind turbines the DFIG is widely employed; however, this machine is extremely susceptible to disturbances from the grid. In order to improve DFIG Low Voltage Ride-Through (LVRT), it is proposed a novel solution, using Superconducting Current Limiter (SCL) in two arrangements: one, the SCL is placed between the machine rotor and the rotor side converter (RSC), and another placed in the RSC DC-link. The proposal is validated through simulation using PSCAD™/EMTDC™ and according to requirements of specific regulations. The analysis ensure that both SCL arrangements behave likewise, and are effective in decrement the rotor currents during the disturbance.
| Reference Key |
oliveira2015energiesenhancing
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|---|---|
| Authors | ;Flávio Oliveira;Arthur Amorim;Lucas Encarnação;Jussara Fardin;Marcos Orlando;Selênio Silva;Domingos Simonetti |
| Journal | acs combinatorial science |
| Year | 2015 |
| DOI |
10.3390/en9010016
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| URL | |
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