Download or read book Electromagnetic Behavier (sic) of Synchronous Generator Under Rotor Fault Conditions written by Mozhgan Kiani and published by . This book was released on 2006 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliable and efficient generation of electricity is of paramount importance in an advanced electric power network. Whether in large synchronous generators that are installed in power plants or for distributed generators in wind farms, survivable performance of these electric machines plays a vital role in accomplishing this goal. The worldwide economical impact of achieving a reliable generation is immeasurable. As a result real time monitoring and just-in-time maintenance of synchronous generators deserves due attention. The present thesis deals with this outstanding issue. Synchronous generators are subject to a variety of failures which may occur in various parts of their structure. Furthermore, these faults may be categorized as partial failure or catastrophic faults. The latter results in an immediate interrupt of service. However, one may note that most partial faults can eventually result in a permanent lack of service. The present thesis deals with a class of failures which may happen in the rotor of a turbo-generator. These faults include electrical failures in the field winding and mechanical faults in the form of eccentricity. Since the electromechanical conversion of energy is closely related to magnetic response of the machine any alteration of the excitation and geometry will result in detectable changes in stator quantities such as voltage and current. The present thesis is based on a detailed analysis of the electromagnetic response of a two pole synchronous generator under various types of rotor faults. In the first step existence of detectable time-domain signatures have been investigated. Next, uniqueness of these signatures is studied. In the last part, a systematic method for just-in-time detection and classification of various rotor faults has been developed. Finite element package of Magnet 6.0 ((c) Infolytica) has been used for this study.