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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Spread Spectrum Pulse Width Modulation Methods

Spread Spectrum Pulse Width Modulation Methods

Lavanya, S. Nithya

Paperback

Technology & Engineering

ISBN10: 3639715039
ISBN13: 9783639715033
Publisher: Scholars' Press
Published: Dec 19 2024
Pages: 188
Weight: 0.62
Height: 0.43 Width: 6.00 Depth: 9.00
Language: English
In recent years, pulse width modulated voltage source inverter (PWM-VSI) is becoming popular in variable speed drive applications due to the internal control of both voltage and frequency within the inverter. In order to regulate both voltage and frequency, various PWM methods are developed for VSI fed drives. To generate the pulse pattern for VSI fed drives, mainly there are two approaches, namely, digital approach (space vector approach) and carrier comparison approach. In the digital approach, the switching times will be calculated and feed to the counters, which will generate the switching instants. Whereas, in carrier comparison approach, reference or modulating signal will be compared with a carrier signal (usually triangular signal) then the intersecting points decide the switching instants for the inverter devices. Among these two approaches, carrier comparison approach is gaining importance due to its simpler implementation.

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