Power Engineering Letters T his section of the magazine offers a vehicle that speeds publication of new results, discoveries, and developments. The section affords authors the opportunity to publish contributions within a few months of submission to ensure rapid dissemination of ideas and timely archiving of developments in our rapidly changing field. Original and significant contributions in applications, case studies, and research in all fields of power engineering are invited. Of specific interest are contributions defining emerging problems and special needs in specific areas. Brief notes may also comment on published areas of established power topics.
These same equations can be used to obtain the theoretical zero active power V-curve. It is important to note that there is a prohibited zone where the field current is near to I FNL , leading to erroneous values of x d. In practice, a 25% upper and lower security margin of field current over I FNL is sufficient to stay out of this zone. Application: The presented method was applied to a microalternator (2 kVA) and to a medium-sized synchronous machine (28.9 MVA). Direct-axis synchronous reactance values were obtained using no-load and short-circuit saturation curves () * x d. Tables 1 and 2 summarize the results for several excitation currents. Conclusions: A simple method to estimate a value for the direct-axis synchronous reactance was presented. The method employs on-line data measurements, was applied to two synchronous machines, and give results with error smaller than 10% when compared with a standardized method. References: [1] IEEE Std. 115, IEEE Guide: Test procedure for synchronous machines. 1995. [2] "F.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.