Selective Harmonic Elimination for Cascaded Hbridge Rectifiers Based on Indirect Control
عنوان مقاله: Selective Harmonic Elimination for Cascaded Hbridge Rectifiers Based on Indirect Control
شناسه ملی مقاله: PEDSTC03_016
منتشر شده در سومین کنفرانس بین المللی الکترونیک قدرت و سیستمهای درایو در سال 1390
شناسه ملی مقاله: PEDSTC03_016
منتشر شده در سومین کنفرانس بین المللی الکترونیک قدرت و سیستمهای درایو در سال 1390
مشخصات نویسندگان مقاله:
A. Marzoughi - University of Tehran
H. Iman-Eini - University of Tehran
خلاصه مقاله:
A. Marzoughi - University of Tehran
H. Iman-Eini - University of Tehran
In this paper, a selective harmonic elimination pulsewidth modulation (SHE-PWM) method is introduced for multilevel cascaded H-bridge rectifiers. The indirect controlstrategy is utilized for control of the multilevel rectifier, where it does not need any current sensor and the system reliabilityincreases by this way. Using the proposed control strategy and the modulation technique, a controllable power factor with nearly sinusoidal ac current waveform is generated. All dc link voltages are regulated to a constant reference voltage, even if the attached loads consume various amounts of power. In theproposed strategy, four major non-triplen harmonics are completely eliminated, and the maximum switching frequency islimited to 150Hz. To verify the validity and effectiveness of the proposed control strategy, several simulations are carried out on a 7-level cascaded H-bridge rectifier in PSCAD/EMTDC environment
کلمات کلیدی: Multilevel cascaded H-bridge; Active rectifier; Selective harmonic elimination PWM; Indirect control
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/213056/