Title :
New modulation strategy with low switching frequency and minimum baseband distortion
Author :
Rüger, N.E. ; Schnick, O. ; Mathis, W. ; Mertens, A.
Author_Institution :
Inst. for Drive Syst. & Power Electron., Leibniz Univ. Hannover, Hannover
Abstract :
This paper reports on a novel modulation strategy for generation of band limited signals with binary switches, which was originally developed for audio power amplifiers, and on applying it to energy conversion. This modulation strategy has the extraordinary advantage that the signal band is free of harmonics or carrier intermodulation products. This so called ldquoZero-Position-Coding with Separated Basebandrdquo (SB-ZePoC) operates at low switching frequencies and thus combines the advantages of PWM and offline-optimised pulse patterns. The advantages and drawbacks are discussed in this paper, considering a single-phase converter application.
Keywords :
PWM power convertors; direct energy conversion; switching convertors; audio power amplifiers; baseband distortion; carrier intermodulation; energy conversion; pulse width modulation; single-phase converter; switching frequency; zero-position-coding with separated baseband; Baseband; Energy conversion; Power amplifiers; Power generation; Pulse amplifiers; Pulse width modulation; Signal generators; Space vector pulse width modulation; Switches; Switching frequency; Harmonics; Modulation Strategy; Power Quality; Pulse Width Modulation (PWM); Signal Processing;
Conference_Titel :
Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 13th
Conference_Location :
Poznan
Print_ISBN :
978-1-4244-1741-4
Electronic_ISBN :
978-1-4244-1742-1
DOI :
10.1109/EPEPEMC.2008.4635256
