By Valentin Asanbayev
This ebook info an technique for recognition of the sector decomposition thought. The publication offers the equipment in addition to thoughts and methods for setting up electrical desktop circuit-loops and deciding upon their parameters. The equipment built were learned utilizing the types of machines with laminated and sturdy rotor having classical constitution. using such versions are good well-known and simplifies useful implementation of the bought results.
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Extra info for Alternating Current Multi-Circuit Electric Machines: A New Approach to the Steady-State Parameter Determination
Analogously, the resulting ﬂux of the rotor winding Φ2p can be represented as Φ2p ¼ Φ2 + Φ12, where Φ2 is the total own ﬂux (total ﬂux of self-induction) of the rotor winding (Fig. 1b) created by the current in the rotor winding (in the absence of current in the stator winding), and Φ12 is the ﬂux of mutual induction (coupled with the rotor winding, Fig. 1a) caused by the current of the stator winding (in the absence of current in the rotor winding). 1 An Induction Machine with a Single-Winding Rotor: Voltage Equations.
24). As a result, we obtain (ÀE1m) ¼ jx11Im and (ÀE2m) ¼ jx12Im. 0 ¼ xx1112 ¼ kE or E1m ¼ kEE2m ¼ E2m . 58) for the referred value of emf E2m have the same structure, although they were obtained using different methods. 24), we use the referred values of emf E2m 0 and current I2 . 59). 56) describing the equivalent circuit for the two conventionally “electrically coupled” windings (Fig. 10). c) The transfer method. Let us consider the equivalent circuit in Fig. 8, in which we transfer its parallel branch a À b to the terminals of emf E1m.
19 The leakage ﬂuxes Φ1σ and Φ2σ induce the leakage emfs E1σ and E2σ in the stator and rotor windings. In order to determine emf E1σ and E2σ , it is necessary to calculate the magnetic ﬂux linkages ψ 1σ and ψ 2σ produced by the leakage ﬂuxes Φ1σ and Φ2σ . 12), the values of λ1 and λ2 represent the leakage permeance of the stator and rotor windings. They include the slot, differential leakage permeance values, and leakage permeance of the end part of the windings. 12), we have ω1 ω1 ðÀE1σ Þ ¼ jpﬃﬃﬃ ψ 1σ and ðÀE2σ Þ ¼ jpﬃﬃﬃ ψ 2σ 2 2 ð2:13Þ On the other hand, the leakage emfs E1σ and E2σ can be presented through the leakage reactance values of the windings ðÀE1σ Þ ¼ jx1σ I 1 and ðÀE2σ Þ ¼ jx2σ I 2 ð2:14Þ where x1σ and x2σ are the leakage reactance values of the stator and rotor windings.
Alternating Current Multi-Circuit Electric Machines: A New Approach to the Steady-State Parameter Determination by Valentin Asanbayev