Multilevel Fixed Pulse Pattern Control for Medium-Voltage High-Frequency Inverter
| Autor: | Masashi Takiguchi, Ogawa Ryuichi, Yugo Tadano |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Computer science business.industry Mechanical Engineering 020208 electrical & electronic engineering Ripple Electrical engineering Energy Engineering and Power Technology 02 engineering and technology 01 natural sciences Industrial and Manufacturing Engineering Synchronization (alternating current) Motor drive Modulation Harmonics 0103 physical sciences Automotive Engineering 0202 electrical engineering electronic engineering information engineering Inverter Electrical and Electronic Engineering Synchronous motor business Frequency modulation Pulse-width modulation Voltage |
| Zdroj: | IEEJ Journal of Industry Applications. 10:652-662 |
| ISSN: | 2187-1108 2187-1094 |
| DOI: | 10.1541/ieejjia.21000075 |
| Popis: | To satisfy the demand for more compact medium-voltage motor drive systems, it is desirable to increase the frequency of the cascaded H-bridge inverters used in high-speed motor systems. However, in asynchronous pulse width modulation (PWM) systems, as the output frequency increases, the command voltage and triangular wave carrier frequencies get closer, making it impossible to accurately output the command voltage. This manifest itself as increased current harmonics, increased surge voltage at the motor terminals, and increased low-frequency ripple current due to the asynchronous nature of the system. In this study, we adopt a fixed pulse pattern modulation method to address these problems. In our method, a low-distortion output voltage is compiled in advance into a table, and subsequently output in synchronization with the fundamental voltage phase. We were able to confirm the effectiveness of the proposed method in simulations at fundamental wave frequencies of 700 Hz and 1000 Hz. |
| Databáze: | OpenAIRE |
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