Abstract
AbstractIn recent years, sinusoidal excitation equipment, that is, a two‐phase induction motor fed by an AC and DC voltage source, has been employed in angular accelerating calibration of the angular accelerometer, the measuring device for the moment of inertia, cleaning and polishing device, and so on, as an exciter. Generally, the excitation equipment is required to have larger alternating torque. Previously, we have derived a practical equation to calculate the alternating current torque of excitation equipment. In this paper, first, for the sinusoidal excitation equipment—two‐phase induction motor fed by AC and DC voltage source—the relation among the equipment circuit parameters and the alternating torque characteristics are investigated numerically. Then, the influence of equivalent circuit parameters on the alternating torque characteristics and its tendencies are clarified. Second, a guideline for the excitation equipment design that can generate larger alternating torque are presented using the equivalent circuit parameters. Last, in order to verify the validity of the new strategy, the trial excitation equipment which is designed by various redesign conditions is compared with previous excitation equipment. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 147(1): 70–77, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.10237
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