| Autor: |
Ahmed Sheir, Vijay K. Sood, Jigneshkumar Patel |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). |
| DOI: |
10.1109/pedg51384.2021.9494174 |
| Popis: |
Modern digital controllers offer a variety of computational power (clock frequency/time-step), resolution and price choices. Their cost often varies based on the lowest time-step they offer. Since the controller’s time-step affects the accuracy of the generated modulated signal, it affects the generation of output signal harmonics in power converter applications. In this paper, the impact of the controller’s time-step is investigated with regard to the generated total harmonic distortion (THD) in the output signal. Moreover, the sinusoidal pulse modulation technique SPWM is compared with a novel wavelet-based modulation WPWM technique. Unlike SPWM, it does not rely on a high-frequency carrier which makes it less dependent on the controller’s time-step. A qualitative comparison is provided in this work based on the types of harmonics and THD generated in the output signal. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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