Abstract
This paper proposes a closed-loop pulse width modulation (PWM) carrier phase shifting method for eliminating the low-order sideband harmonics in parallel-connected low-pulse ratio VSIs. A current sensor is added to measure the THD of total current to adjust the PWM carrier phase of inverters with closed-loop control. First, the low-order sideband harmonics caused by the multiple modulation references are analyzed. Then, the basic idea and the realization of the closed-loop PWM carrier phase shifting method are discussed. Finally, simulations and experimental results verified the proposed method.
| Original language | English |
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| Title of host publication | Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2018) |
| Number of pages | 7 |
| Place of Publication | USA |
| Publisher | IEEE Press |
| Publication date | Sept 2018 |
| Pages | 2271 - 2277 |
| ISBN (Print) | 978-1-4799-7313-2 |
| ISBN (Electronic) | 978-1-4799-7312-5 |
| DOIs | |
| Publication status | Published - Sept 2018 |
| Event | IEEE Energy Conversion Congress & Exposition ECCE 2018 - Portland, United States Duration: 23 Sept 2018 → 27 Sept 2018 http://www.ieee-ecce.org/2018/ |
Conference
| Conference | IEEE Energy Conversion Congress & Exposition ECCE 2018 |
|---|---|
| Country/Territory | United States |
| City | Portland |
| Period | 23/09/2018 → 27/09/2018 |
| Internet address |
Keywords
- low-pulse ration inverter
- low order sideband harmonics
- global synchronous PWM
- closed-loop control