2017
DOI: 10.1016/j.conengprac.2017.05.002
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A direct power control for DFIG under a three phase symmetrical voltage sag condition

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Cited by 24 publications
(11 citation statements)
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“…As the stator windings of the DFIG are linked directly to the network, when severe voltage drop occurs, high peak currents appear on the stator windings, due to the coupling between the stator and rotor circuit, over currents appear on the rotor winding then the rotor side converter (RSC), which leads to increases the voltage in the DC bus capacitor [16] and the oscillations on the torque, consequently, if no protection measurements were installed, the high currents transient can destroy the rotor side converter and the generator [17]. So to protect the system and keep the DFIG connected to the grid during the period of the fault, several control strategies have been proposed and studied in the literature [6][7][8][9][10][11][14][15][16][17][18][19][20][21][22][23][24][25][26][27], these control strategies propose using a hardware protective devices or improving control methods.…”
Section: Introductionmentioning
confidence: 99%
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“…As the stator windings of the DFIG are linked directly to the network, when severe voltage drop occurs, high peak currents appear on the stator windings, due to the coupling between the stator and rotor circuit, over currents appear on the rotor winding then the rotor side converter (RSC), which leads to increases the voltage in the DC bus capacitor [16] and the oscillations on the torque, consequently, if no protection measurements were installed, the high currents transient can destroy the rotor side converter and the generator [17]. So to protect the system and keep the DFIG connected to the grid during the period of the fault, several control strategies have been proposed and studied in the literature [6][7][8][9][10][11][14][15][16][17][18][19][20][21][22][23][24][25][26][27], these control strategies propose using a hardware protective devices or improving control methods.…”
Section: Introductionmentioning
confidence: 99%
“…Alternatively, many control methods have been developed and proposed; in [16,18] and [24] a DPC was developed to control the stator powers of the DFIG during the voltage sags, the proposed control strategy was verified by laboratory experiments. In [15] a stator flux control method based on the Active Disturbance Rejection Control (ADRC) corrector was applied to maintain the magnetization of the DFIG during the voltage drop associated whit the crowbar devices, this method work well, but when the crowbars were activated the DFIG control is lost.…”
Section: Introductionmentioning
confidence: 99%
“…As equações referentes ao modelo matemático do GIDA apresentam indiretamente a velocidade mecânica, pois = − Ω . Neste trabalho considera-se Ω constante para um período de amostragem, devido à constante de tempo mecânica do GIDA ser muito maior que as constantes de tempo elétricas (FILHO, 2010;SOLIS-CHAVES et al, 2017). Sendo assim, como a velocidade síncrona é fixada pela rede, então a mesma hipótese é válida para o escorregamento, o que significa que o escorregamento também pode ser considerado constante durante um período de amostragem.…”
Section: Equações Do Rotor No Gidaunclassified
“…Os parâmetros como e são incrementados em 60% do seus valores, para testar o conjunto de controle finito robusto proposto para o GIDA. Nesse caso, para inserir o erro mencionado, altera-se os valores dos parâmetros no DSP, como feito em (SOLIS-CHAVES et al, 2017). Neste teste, − = 3 a − = 1 e de − = 1 a − = 3 comportam-se conforme representa a figura 37.…”
Section: Teste De Variação Paramétricaunclassified
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