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Read e-book online Alternating Current Multi-Circuit Electric Machines: A New PDF

By Valentin Asanbayev

ISBN-10: 3319101080

ISBN-13: 9783319101088

ISBN-10: 3319101099

ISBN-13: 9783319101095

This publication information an method for consciousness of the sector decomposition notion. The publication offers the equipment in addition to suggestions and strategies for developing electrical computing device circuit-loops and settling on their parameters. The tools built were discovered utilizing the versions of machines with laminated and good rotor having classical constitution. using such versions are good famous and simplifies sensible implementation of the got results.

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Additional info for Alternating Current Multi-Circuit Electric Machines: A New Approach to the Steady-State Parameter Determination

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10) can be represented in the following form: Φ1р ¼ Φ1σ þ Φ11 þ Φ21 ¼ Φ1σ þ Φm Φ2р ¼ Φ2σ þ Φ22 þ Φ12 ¼ Φ2σ þ Φm ð2:11Þ where Φm ¼ Φ11 + Φ21 ¼ Φ22 + Φ12. 11), the resulting fluxes Φ1р and Φ2р are represented as the sum of the leakage fluxes Φ1σ and Φ2σ and the resulting flux of mutual induction Φm. 11) is shown in Fig. 3c. 1 An Induction Machine with a Single-Winding Rotor: Voltage Equations. . 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 .

36), the value of x2σ reflects the referred to the stator winding value of the rotor winding leakage reactance. 36) represents the reduction factor of the rotor winding leakage reactance. 36), the stator and rotor windings are represented as the two “electrically coupled” conditional circuits (Fig. 5). The electrical equivalent circuit in Fig. , Im ¼ (I1 + I2 ). In the equivalent circuit in Fig. 5, the current Im represents the magnetizing current of an electric machine, and the value of xm corresponds to its magnetizing reactance.

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. 11) induces the resulting emfs of mutual induction E1m and E2m in the stator and rotor windings. 17), the values E1m and E2m represent the emfs determined behind the leakage reactance values of the stator and rotor windings.

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Alternating Current Multi-Circuit Electric Machines: A New Approach to the Steady-State Parameter Determination by Valentin Asanbayev


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