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This paper analyzes the influence of excitation in the experimental determination of flux linkage vs. current vs. position relationship of a switched reluctance motor. Results of the experimental characterization of the SRM in the cases of rectangular bipolar excitation, rectangular unipolar excitation and sinusoidal excitation are compared. An equivalent model of a motor phase including magnetic...
A knowledge of the electromagnetic characteristics of switched reluctance motors (SRM) is crucial for the simulation, analysis, control and development of drive systems based on these machines. Various experimental methods for determining flux-linkage-current-position characteristics can be found in the literature. References relating to the experimental determination of torque-current-position characteristics...
The paper describes an experimental method to identify the equivalent circuit parameters of a switched reluctance motor including non ideal effects associated with the magnetic core. The proposed method avoids the use of large capacitors or batteries to reach values of current that guarantee the saturation of the magnetic core, and minimizes the number of power electronic devices. The experimental...
Cooling towers are used in many process applications in the petrochemical industry. Reliability of these towers is crucial. In many cases, redundant towers are installed to ensure a process will not have to be stopped due to a cooling tower failure. The most prevalent cause of cooling tower downtime is failure of the right angle gearbox or associated mechanical components, such as the driveshaft or...
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