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Motor Background Knowledge 2

(3) Air gap See figure 12, the magnetization curve of the air gap Φδ=-μ0*(Sδ/δ)*Fδ Φδ: Air gap fluxSδ: Air gap areaΔ: Air gap lengthFδ: Air gap magnetomotive force(magnetic EMF) Permeance angle: α=tg-1[μ0*(Sδ/δ)]. We can see that when δ is longer, α is smaller, air gap flux Φδ is smaller. Motor ...

2026-04-13

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Motor Background Knowledge 1

Motor Background Knowledge 1. Basic concepts Motor is an energy conversion device that converts electric energy into mechanical energy or mechanical energy into electric energy, using magnetic field as media. PMDC motor is an energy conversion device that converts electric energy into mechanical ...

2026-04-13

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