14 September 2015 Delft University of Technology Electrical Power System Essentials ET2105...

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21 April 2023

DelftUniversity ofTechnology

Electrical Power System Essentials

ET2105 Electrical Power System Essentials

Prof. Lou van der Sluis

The Utilization of Electric Energy

24. The Utilization of Electric Energy | 15

Electrical Power System Essentials ET2105

Introduction (1)

• Electricity: the energy carrier of the future

• A variety of conversions• Into mechanical energy• Into light• Into heat• DC electrical energy• Chemical energy

Introduction (2)Daily load curve in the Netherlands

(Monday May 15, 2006)

The Synchronous Motor (1)Magnetic field generated by a three-phase coil system

The Synchronous Motor (2)Synchronous motor connected to an infinite bus

The Induction Motor (1)Three-phase induction motor supplied by a single-phase source

The Induction Motor (2)The electromagnetic torque as a function of the angular rotor speed

• The incandescent lamp

• The halogen lamp

• The fluorescent lamp (Tube Light or TL)

• The light-emitting diode (LED)

• Boiler

• Water cooker

• Electric stove

• Aluminum and steel furnaces

Direct Current (1)Single-phase full-wave rectifier

Single-phase full-wave rectifier during the positive (a) and the negative (b) half cycle of Vin

Direct Current (2)Single-phase rectification

Single-phase half-wave (a) and full-wave (b) rectification

Residential load

Wiring lay out of four houses or buildings connected to a three-phase supply

Electric Railways (1)

Courtesy of TenneT TSO B.V.

Electric Railways (2)Supply principle of a DC railway system

Electric Railways (3)Supply principle of an AC railway system

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