Constant Frequency Tandem Machine for Variable Speed Generating Systems

This paper presents a new methodology to overcome obstacles of variable speed Generation systems. Proposed machine is a type of electrical machine which induces a constant frequency voltage for a variable prime mover speed without using any electronic circuits. In this paper, a construction and principle of operation for the proposed machine are presented. The frequency equations and relations as well as steady state analysis are investigated. An extensive simulated study is carried out to validate the theory of the proposed machine. A practical prototype model has been built to investigate the given analysis of a proposed machine using experimental results.