Abstract
The article presents a methodology for developing pole-switched windings with a pole pair ratio of 5/6 with 108 stator slots, the results of the analysis and ways to improve the electromagnetic properties, and also the areas of application of the obtained windings are determined.
Highlights
The development of pole-changing winding circuits for a close pole ratio is an urgent task due to the widespread prevalence of two-speed electric machines with a close speed ratio. This includes mechanisms with a fan type of load or the so-called turbine mechanisms [1, 7]. Such windings can be used in two-speed asynchronous generators for wind turbines
One of the most common speed ratios in two-speed motors used on fan-driven drives is the 5:6 ratio
The first speed of 600 rpm is the main one, at which the electric machine will operate if the mechanism is fully loaded, and the second speed (500 rpm) is auxiliary and is used, as mentioned above, to regulate productivity, for rational use of electricity and natural resources in underload modes, and can serve as the first stage in a step start
Summary
The development of pole-changing winding circuits for a close pole ratio is an urgent task due to the widespread prevalence of two-speed electric machines with a close speed ratio.First of all, this includes mechanisms with a fan type of load or the so-called turbine mechanisms (pumps, fans, blowers, etc.) [1, 7].such windings can be used in two-speed asynchronous generators for wind turbines. By the name of the phase in the groove with one and the other windings, you can determine the branch to which this or that coils number corresponds.
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