Slot ripples in the damper windings of a salient-pole synchronous generator

1994 ◽  
Vol 9 (1) ◽  
pp. 126-134 ◽  
Author(s):  
J. Matsuki ◽  
T. Katagi ◽  
T. Okada
Keyword(s):  
Synchronous Generator ◽  
Salient Pole ◽  
Damper Windings

The third harmonic generated voltage by salient-pole synchronous generator during 3-phase-to-ground fault

2017 ◽  
Vol 27 (11) ◽  
pp. e2401
Author(s):  
Nur Iylia Shah Riman ◽  
Mohd Faris Abdullah ◽  
Mohd Fakhizan Romlie ◽  
Zuhairi Baharudin
Keyword(s):  
Synchronous Generator ◽  
Third Harmonic ◽  
The Third ◽  
Ground Fault ◽  
Salient Pole

scholarly journals SALIENT POLE SYNCHRONOUS GENERATOR OPTIMIZATION BY COMBINED APPLICATION OF SLOT SKEW AND DAMPER WINDING PITCH METHODS

2018 ◽  
Vol 73 ◽  
pp. 81-90
Author(s):  
Ante Elez ◽  
Marijan Petrinic ◽  
Miroslav Petrinic ◽  
Babak Vaseghi ◽  
Alireza Abasian
Keyword(s):  
Synchronous Generator ◽  
Combined Application ◽  
Salient Pole ◽  
Damper Winding

Numerical Investigation of Internal Flow in a Salient Pole Synchronous Generator

2020 ◽  
Vol 2020 (0) ◽  
pp. 17B12
Author(s):  
Takuma MUTOH ◽  
Akira OZAWA ◽  
Teppei IKUTA ◽  
Takumi ITO ◽  
Nobumichi FUJISAWA ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Internal Flow ◽  
Synchronous Generator ◽  
Salient Pole

scholarly journals Sliding Mode Observer-Based Load Angle Estimation for Salient-Pole Wound Rotor Synchronous Generators

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1609 ◽  
Author(s):  
Nikola Lopac ◽  
Neven Bulic ◽  
Niksa Vrkic
Keyword(s):  
Power System ◽  
Sliding Mode ◽  
Synchronous Generator ◽  
Absolute Error ◽  
Sliding Mode Observer ◽  
Adaptive Observer ◽  
System Stability ◽  
Angle Estimation ◽  
Salient Pole ◽  
Load Angle

Synchronous generator load angle is a fundamental quantity for power system stability assessment, with possible real-time applications in protection and excitation control systems. Commonly used methods of load angle determination require additional measuring equipment, while existing research on load angle estimation for wound rotor synchronous generator has been limited to the estimator based on the generator’s phasor diagram and estimators based on artificial neural networks. In this paper, a load angle estimator for salient-pole wound rotor synchronous generator, based on a simple sliding mode observer (SMO) which utilizes field current, stator voltages, and stator currents measurements, is proposed. The conventional SMO structure is improved with use of hyperbolic tangent sigmoid functions, implementation of the second order low-pass filters accompanied with corresponding phase delay compensation, and introduction of an adaptive observer gain proportional to the measured field current value. Several case studies conducted on a generator connected to a power system suggest that the proposed estimator provides an adequate accuracy during active and reactive power disturbances during stable generator operation, outperforming the classical phasor diagram-based estimator by reducing mean squared error by up to 14.10%, mean absolute error by up to 41.55%, and maximum absolute error by up to 8.81%.

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