Validation study of the use of MATLAB/Simulink synchronous-machine block for accurate power-plant stability studies

Blánquez, F. R.; Revuelta, Patricio Salmerón; Rebollo, E.; Platero, Carlos A.

doi:10.1109/eeeic.2014.6835849

Cited by 4 publications

(4 citation statements)

References 9 publications

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“…In order to verify the operation and the advantages previously presented, numerous simulations have been made by using the Simpower System ® of Matlab ® Version 9.2 (2018b) software. The generator model [23] and the exciter model [24] have been largely used. The simulation model comprises the main generator, the complete excitation system, including the exciter, the static circuit breaker, and the discharge resistor (Figure 8).…”

Section: Simulations Of the Proposed Static Field Breaker (Sfb) Systemmentioning

confidence: 99%

Use of Discharge Resistor to Improve Transient De-Excitation in Brushless Synchronous Machines

et al. 2019

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The discharge resistor is only used in case of electrical trip to reduce the field current as fast as possible and to minimize the damages produced by the short-circuit current supplied by the synchronous machine. The connection of the discharge resistor is done by opening the field breaker and it implies a large negative voltage in the field winding. This negative voltage is limited to 80% of the winding insulation voltage. On the other hand, in case of a transient de-excitation, at the first moment, the automatic voltage regulator (AVR) reduces the field voltage to the minimum. In case of one-quadrant rectifier type AVR, the minimum voltage is zero and in case of two-quadrant rectifier AVR, the minimum voltage is close to the ceiling voltage with negative polarity. In both cases, the minimum voltages are much smaller than the negative voltage produced by the connection of the discharge resistor. This paper presents a new system that improves the transient de-excitation of synchronous machines using the discharge resistor by an additional static field breaker (SFB). The control of the static field breaker and consequently the connection and disconnection of the discharge resistor is done based on the output field voltage supplied by the AVR. This allows the exciter field current to be reduced in a faster way and continue with the normal operation of the machine after the transient. In this study, the correct operation of the additional static field breaker (SFB) has been validated by computer simulations and experimental test in a 15 MVA generator comprising a commercial one-quadrant rectifier AVR type obtaining excellent results.

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Section: Simulations Of the Proposed Static Field Breaker (Sfb) Systemmentioning

confidence: 99%

Use of Discharge Resistor to Improve Transient De-Excitation in Brushless Synchronous Machines

et al. 2019

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“…Thus the total current in any phase suppose phase " a " is composed of the following components of current and is given by [5].…”

Section: Phase "A" Current Componentsmentioning

confidence: 99%

Verification of Short Circuit Test Results of Salient Poles Synchronous Generator

2016

IJSR

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“…• Determinación de parámetros de la máquina de inducción mediante nuevo algoritmo recursivo de mínimos cuadrados [33]. • Estudio de la estabilidad de máquinas síncronas en sistemas eléctricos de potencia [34]. • Estimación de la temperatura de los devanados de un motor de inducción [35].…”

Section: 2-simulación De Máquinas Eléctricasunclassified

“…Esta tensión Vb va a dar origen a una intensidad por el devanado del inducido (Ii). Pues bien, esta intensidad del inducido Ii sobre el la inducción magnética Bexc producida por la intensidad de excitación Iexc va a dar origen a unas fuerzas que provocarán el movimiento del rotor, según la siguiente fórmula de Lorentz (34). En este tipo de máquinas, el inductor y el inducido están conectados eléctricamente, por lo que el inductor toma la energía del mismo punto que la toma el inducido por lo que en este caso se habla de máquina autoexcitada.…”

Section: 55-ensayo De Deslizamiento De La Máquina Síncronaunclassified

Generación sistemática de un modelo de gestión y control de ensayos de máquinas eléctricas para la determinación de sus parámetros característicos y su implementación en un entorno industrial

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Luis²

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Validation study of the use of MATLAB/Simulink synchronous-machine block for accurate power-plant stability studies

Cited by 4 publications

References 9 publications

Use of Discharge Resistor to Improve Transient De-Excitation in Brushless Synchronous Machines

Use of Discharge Resistor to Improve Transient De-Excitation in Brushless Synchronous Machines

Verification of Short Circuit Test Results of Salient Poles Synchronous Generator

Generación sistemática de un modelo de gestión y control de ensayos de máquinas eléctricas para la determinación de sus parámetros característicos y su implementación en un entorno industrial

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