Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers
This article proposes a new technique called optimized discontinuous carrier pulse width modulation (ODCPWM), whose main objective is to solve the issue of significant output voltage harmonics of conventional synchronous carrier modulation at low carrier wave ratios. Based on the symmetry principle,...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/5/2401 |
| _version_ | 1797615404215959552 |
|---|---|
| author | Xuefeng Jin Jiahao Liu Wei Chen Tingna Shi |
| author_facet | Xuefeng Jin Jiahao Liu Wei Chen Tingna Shi |
| author_sort | Xuefeng Jin |
| collection | DOAJ |
| description | This article proposes a new technique called optimized discontinuous carrier pulse width modulation (ODCPWM), whose main objective is to solve the issue of significant output voltage harmonics of conventional synchronous carrier modulation at low carrier wave ratios. Based on the symmetry principle, the fundamental wave period is divided into regions; the carriers in adjacent regions are flipped, and the carrier width is changed symmetrically in each region to generate an unequal-width optimized discontinuous carrier pulse width modulation. In addition, using the weighted total harmonic distortion (WTHD) of the line voltage as an evaluation index, an optimized multi-mode PWM strategy is proposed to satisfy the system to operate stably in the whole speed range. The experimental results verify the effectiveness of the proposed strategy. The results show that ODCPWM proposed in this article can eliminate harmonics and multiples of three harmonics in line voltage harmonics. The <i>V</i><sub>WTHD</sub> is lower, which improves the quality of the output waveform and makes the system operation more stable and reliable. The proposed multi-mode PWM strategy is smooth and shock-free during switching. |
| first_indexed | 2024-03-11T07:25:48Z |
| format | Article |
| id | doaj.art-b531abea6fe74a9db411e277b9bf145e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T07:25:48Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b531abea6fe74a9db411e277b9bf145e2023-11-17T07:38:08ZengMDPI AGEnergies1996-10732023-03-01165240110.3390/en16052401Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous CarriersXuefeng Jin0Jiahao Liu1Wei Chen2Tingna Shi3School of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Electrical Engineering, Tiangong University, Tianjin 300387, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaThis article proposes a new technique called optimized discontinuous carrier pulse width modulation (ODCPWM), whose main objective is to solve the issue of significant output voltage harmonics of conventional synchronous carrier modulation at low carrier wave ratios. Based on the symmetry principle, the fundamental wave period is divided into regions; the carriers in adjacent regions are flipped, and the carrier width is changed symmetrically in each region to generate an unequal-width optimized discontinuous carrier pulse width modulation. In addition, using the weighted total harmonic distortion (WTHD) of the line voltage as an evaluation index, an optimized multi-mode PWM strategy is proposed to satisfy the system to operate stably in the whole speed range. The experimental results verify the effectiveness of the proposed strategy. The results show that ODCPWM proposed in this article can eliminate harmonics and multiples of three harmonics in line voltage harmonics. The <i>V</i><sub>WTHD</sub> is lower, which improves the quality of the output waveform and makes the system operation more stable and reliable. The proposed multi-mode PWM strategy is smooth and shock-free during switching.https://www.mdpi.com/1996-1073/16/5/2401voltage source inverterdiscontinuous carrier pulse width modulationcarrier wave ratio |
| spellingShingle | Xuefeng Jin Jiahao Liu Wei Chen Tingna Shi Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers Energies voltage source inverter discontinuous carrier pulse width modulation carrier wave ratio |
| title | Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers |
| title_full | Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers |
| title_fullStr | Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers |
| title_full_unstemmed | Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers |
| title_short | Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers |
| title_sort | optimized synchronous pulse width modulation strategy based on discontinuous carriers |
| topic | voltage source inverter discontinuous carrier pulse width modulation carrier wave ratio |
| url | https://www.mdpi.com/1996-1073/16/5/2401 |
| work_keys_str_mv | AT xuefengjin optimizedsynchronouspulsewidthmodulationstrategybasedondiscontinuouscarriers AT jiahaoliu optimizedsynchronouspulsewidthmodulationstrategybasedondiscontinuouscarriers AT weichen optimizedsynchronouspulsewidthmodulationstrategybasedondiscontinuouscarriers AT tingnashi optimizedsynchronouspulsewidthmodulationstrategybasedondiscontinuouscarriers |