Abstract
Test results of active current balance (ACB) at Georgia Power's McDonough Plant show the effect of ACB applied to parallel thyristor bridges in generator excitation applications. This paper presents test results of ACB, a new technique that adjusts the average current in parallel leg thyristors to facilitate current balance between the parallel operating bridges. The unbalance between parallel thyristors is typically caused by differences in inductance feeding the thyristors and by the conducting characteristics of the thyristors. Balance is accomplished by periodically inhibiting the firing of thyristors that carry more than the average current. The thyristors that are conducting carry more current during this interval and their average current is increased. Test results show that the current balance between the parallel operating thyristors in the bridges is significantly improved when ACB is enabled. The results of rapid changes in load while ACB is enabled are also shown.
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.
