Compensation for Magnetizing Inrush Currents in Transformers using PWM Inverter
نویسندگان
چکیده
منابع مشابه
A NEURO-FUZZY TECHNIQUE FOR DISCRIMINATION BETWEEN INTERNAL FAULTS AND MAGNETIZING INRUSH CURRENTS IN TRANSFORMERS
This paper presents the application of the fuzzy-neuro method toinvestigate transformer inrush current. Recently, the frequency environment ofpower systems has been made more complicated and the magnitude of the secondharmonic in inrush current has been decreased because of the improvement of caststeel. Therefore, traditional approaches will likely mal-operate in the case ofmagnetizing inrush w...
متن کاملa neuro-fuzzy technique for discrimination between internal faults and magnetizing inrush currents in transformers
this paper presents the application of the fuzzy-neuro method toinvestigate transformer inrush current. recently, the frequency environment ofpower systems has been made more complicated and the magnitude of the secondharmonic in inrush current has been decreased because of the improvement of caststeel. therefore, traditional approaches will likely mal-operate in the case ofmagnetizing inrush w...
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Among the most noticeable root causes of improper performance in power transformers, internal short circuit faults can be noted and if not quickly be identified and addressed in the accepted time interval, irrecoverable damages such as interruption or even collapse of the network connected to the power transformer would happen. In this contribution, three-phase transformer behaviors under magne...
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This paper presents an alternative approach using the differential logic associated to Artificial Neural Networks (ANNs) in order to distinguish between inrush currents and internal faults in the protection of power transformers. The Alternative Transients Program (ATP) has been chosen as the computational tool to simulate a power transformer under fault and energization situations. The Radius ...
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Numerical field solutions may be used to predict the magnetizing current waveform of power transformers for a giving value of sinusoidal voltage supply. This note concerns the sequence of operations necessary to estimate the magnetizing current waveform of power transformers employing a set of numerically simulated open-circuit tests.
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ژورنال
عنوان ژورنال: IEEJ Transactions on Industry Applications
سال: 2001
ISSN: 0913-6339,1348-8163
DOI: 10.1541/ieejias.121.730