Overview of Motor Technologies Evolution and Impact of Digital Motor Control

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Prezentare controlului motoarelor electrice cu ajutorul DSP-urilor

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1.0 Introduction to digital

motor control

– Overview of motor technologies evolution and

influence of digital motor control

– Motion system elements : motors, power drivers,

feedback devices, transmission

– Review of analogue and digital control

– DSP Advantages and benefits for

digital motor control

KLM 2006-2007 – Procesoare DSP in actionari electrice 3

Evolution of electrical

machines

Evolution of electrical

machines

• Classical electrical machines

• Impact of power electronics

• Impact of modern digital control

• Future evolution

KLM 2006-2007 – Procesoare DSP in actionari electrice 4

EEvvoolluuttiioonn ooff eelleeccttrriiccaall mmaacchhiinneess ((II))

DC

POWER

CONVERSION

AC

Synchronous

Asynchronous

AC and DC Power Supply

Universal

Series

Compound

Per. Magnet

Shunt

Wound rotor

Squirrel cage

Salient poles

Var. reluctance

Perm. magnet

Classical

electrical

machines

KLM 2006-2007 – Procesoare DSP in actionari electrice 5

The basic functions of

an electrical drive

The basic functions of

an electrical drive

• Electrical Mechanical

Power Power

• Electromechanical power conversion

ELECTRIC

MOTOR

KLM 2006-2007 – Procesoare DSP in actionari electrice 6

MMoottoorr tteecchhnnoollooggiieess

1 10 100 1000 10000

DC ironless

DC ironcore

Stepper

DC brushless

AC servo

AC induction

Power

KLM 2006-2007 – Procesoare DSP in actionari electrice 7

PPMM IIrroonn CCoorree BBrruusshh MMoottoorr

Stator

PM

Wound

Rotor

Stator

Housing

N

S

SN

KLM 2006-2007 – Procesoare DSP in actionari electrice 8

PPMM IIrroonnlleessss BBrruusshh MMoottoorr

Wound

Rotor

Stator

Housing

N

S

Stator

Permanent

Magnet

KLM 2006-2007 – Procesoare DSP in actionari electrice 9

Torque-speed characteristic

of a DC Motor

Torque-speed characteristic

of a DC Motor

TORQUE

SPEED

V1

V2 >V1

current

KLM 2006-2007 – Procesoare DSP in actionari electrice 10

AACC SSyynncchhrroonnoouuss MMoottoorr

Motor

Housing

Wound

Stator

Rotor

KLM 2006-2007 – Procesoare DSP in actionari electrice 11

AACC SSyynncchhrroonnoouuss MMoottoorr

ROTOR

FIELD

STATOR

FIELD

KLM 2006-2007 – Procesoare DSP in actionari electrice 12

Torque-speed characteristic of a

synchronous motor

Torque-speed characteristic of a

synchronous motor

TORQUE

SPEED

Tmax

ω0

KLM 2006-2007 – Procesoare DSP in actionari electrice 13

Wound

Stator

Rotor

Motor

Housing

Permanent Magnet AC

Synchronous Motor

Permanent Magnet AC

Synchronous Motor

Permanent

magnets

N

S

KLM 2006-2007 – Procesoare DSP in actionari electrice 14

Wound

Stator

Rotor

Motor

Housing

AACC IInndduuccttiioonn MMoottoorr

Rotor

bars

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