Abstract
The mutual interacton between zero-phase-sequence and negative-phase-sequence circuits in a salient pole synchronous generator is proved experimentally and theoretically. In the method of symmetrical coordinates, it has been believed that positive-, negative- and zero-phase-sequence components are independent. But an experiment driving a synchronous generator with unbalanced load shows that negative-phase-sequence voltage is induced when only zero-phase-sequence current is applied. These interaction between negative- and zero-phase- sequence circuits are proved theoretically by magnetic flux distribution in the air-gap of synchronous generator. The m. m. f. by zero-phase-sequence current generates negative-phase-sequence flux distribution by the saliency of the rotor and the field current 2nd harmonics and vice versa. The revised exprssion for synchronous machine in the symmetric coordinate is proposed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
