# New PDF release: AC Motor Control and Electrical Vehicle Applications

By Kwang Hee Nam

ISBN-10: 1439819637

ISBN-13: 9781439819630

Motor keep watch over expertise keeps to play an essential function within the initiative to dispose of or at the very least lessen petroleum dependency and greenhouse fuel emissions around the globe. elevated motor potency is an important point of this technology within the worldwide transition to wash energy use in components comparable to commercial purposes and residential appliances―but really within the layout of vehicles.

**Summarizes the evolution of motor using devices towards excessive potency, most economical, excessive strength density, and versatile interface with different components**

**AC Motor keep watch over and electrical automobile Applications** addresses the themes pointed out in its name but additionally elaborates on motor layout point of view, reminiscent of again EMF harmonics, loss, flux saturation, and reluctance torque, and so forth. retaining theoretical integrity in AC motor modeling and keep watch over all through, the writer specializes in the advantages and ease of the rotor field-oriented keep an eye on, describing the fundamentals of PWM, inverter, and sensors. He additionally clarifies the basics of electrical autos and their linked dynamics, motor matters, and battery limits. a strong compendium of sensible info, this publication serves as an total great tool for the layout and keep an eye on of high-efficiency motors.

**Read Online or Download AC Motor Control and Electrical Vehicle Applications PDF**

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**Extra resources for AC Motor Control and Electrical Vehicle Applications**

**Example text**

18) Hence, the total sum is MMFsum [ ] π 1 π 1 π 4 NI 3 cos(ωt − θ) + cos(ωt + 5 θ) − cos(ωt − 7 θ) + · · · . , it travels at the speed of 1/5ω in the opposite direction (clockwise) to that of the fundamental component. , it travels the speed of 1/7ω in the same direction (counterclockwise) as that of the fundamental component. Generalizing the above, it follows that i) (ν − 1 = 6m) This case corresponds to ν = 7, 13, 19, · · · and MMFsum(ν) = − ( ) πθ 4N I 3 cos ωt − ν . 19) These MMF components rotate in the same direction as the fundamental component.

It travels at the speed of 1/5ω in the opposite direction (clockwise) to that of the fundamental component. , it travels the speed of 1/7ω in the same direction (counterclockwise) as that of the fundamental component. Generalizing the above, it follows that i) (ν − 1 = 6m) This case corresponds to ν = 7, 13, 19, · · · and MMFsum(ν) = − ( ) πθ 4N I 3 cos ωt − ν . 19) These MMF components rotate in the same direction as the fundamental component. ii) (ν + 1 = 6m) This case corresponds to ν = 5, 11, 17, · · · and MMFsum(ν) = ( ) 4N I 3 πθ cos ωt + ν .

1) A sum up to 7th order is shown in Fig. 4 (b). Fig. 3: Superposition of MMFs of distributed windings. the pole pitch and W is the coil span. Then the MMF is given by MMF(q=2) = Note that 4 1 π n kp(n) NI 4 2 π ∑ n=1,3,5,··· 1 nπ kp(n) cos . 2) corresponds to the Fourier coeﬃcients. Thus it should follow that ∫ 2 π 41 k ≡ MMF(θ) cos(nθ)dθ π n p(n) π 0 ∫ Wπ 4 τp 2 = cos(nθ)dθ π 0 ( ) 41 Wπ = sin n . 3) πn τp 2 Therefore, it turns out that ( kp(n) Wπ = sin n τp 2 ) . 4: Fourier series expansion: (a) square wave MMF and its fundamental component and (b) approximation up to 7th order.

### AC Motor Control and Electrical Vehicle Applications by Kwang Hee Nam

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