Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter
The imbalance of capacitor voltage on the DC side of the inverter will cause the third-order current harmonics and the device will be damaged greatly with the increase of voltage stress. The mechanism of imbalance capacitors voltage and the third-order current harmonics generated by the double frequ...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
|
| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722016018 |
| _version_ | 1797900667653718016 |
|---|---|
| author | Yingjun Guo Zhaoyang Li Lijing Zhao Hexu Sun Wenxin Li Yanwei Jing Shuchun Duan Xiaoyang Wei |
| author_facet | Yingjun Guo Zhaoyang Li Lijing Zhao Hexu Sun Wenxin Li Yanwei Jing Shuchun Duan Xiaoyang Wei |
| author_sort | Yingjun Guo |
| collection | DOAJ |
| description | The imbalance of capacitor voltage on the DC side of the inverter will cause the third-order current harmonics and the device will be damaged greatly with the increase of voltage stress. The mechanism of imbalance capacitors voltage and the third-order current harmonics generated by the double frequency fluctuation are analyzed. This paper presents a feedforward capacitor differential pressure control strategy based on PR controller, which is aimed at the single-phase three-level NPC inverter and considers the cause of double modulation wave. The PR controller is used in the current loop to suppress the third-order harmonic by static-free tracking of the AC signal, and the voltage balance is realized by the feedforward DC-link capacitor voltage difference to offset the DC component of the output side. The simulation model and 1kW prototype driven by the control strategy have been established to demonstrate that the capacitor voltage of the inverter is balanced and the third-order harmonic is suppressed efficiently. |
| first_indexed | 2024-04-10T08:49:38Z |
| format | Article |
| id | doaj.art-f125d45f8efd4c4b9c6dba0fd371ad65 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-10T08:49:38Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-f125d45f8efd4c4b9c6dba0fd371ad652023-02-22T04:31:35ZengElsevierEnergy Reports2352-48472022-11-018330339Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverterYingjun Guo0Zhaoyang Li1Lijing Zhao2Hexu Sun3Wenxin Li4Yanwei Jing5Shuchun Duan6Xiaoyang Wei7School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, China; Corresponding authors at: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, ChinaHCIG New-energy Co., Ltd, Shijiazhuang 050000, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, ChinaSchool of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, China; Corresponding authors at: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, ChinaHCIG New-energy Co., Ltd, Shijiazhuang 050000, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, ChinaHCIG New-energy Co., Ltd, Shijiazhuang 050000, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, ChinaHCIG New-energy Co., Ltd, Shijiazhuang 050000, China; Hebei Engineering Laboratory of Windpower/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization, Shijiazhuang 050018, ChinaThe imbalance of capacitor voltage on the DC side of the inverter will cause the third-order current harmonics and the device will be damaged greatly with the increase of voltage stress. The mechanism of imbalance capacitors voltage and the third-order current harmonics generated by the double frequency fluctuation are analyzed. This paper presents a feedforward capacitor differential pressure control strategy based on PR controller, which is aimed at the single-phase three-level NPC inverter and considers the cause of double modulation wave. The PR controller is used in the current loop to suppress the third-order harmonic by static-free tracking of the AC signal, and the voltage balance is realized by the feedforward DC-link capacitor voltage difference to offset the DC component of the output side. The simulation model and 1kW prototype driven by the control strategy have been established to demonstrate that the capacitor voltage of the inverter is balanced and the third-order harmonic is suppressed efficiently.http://www.sciencedirect.com/science/article/pii/S2352484722016018Neutral point clampedDouble modulation waveCapacitor voltage balanceThird-order current harmonic |
| spellingShingle | Yingjun Guo Zhaoyang Li Lijing Zhao Hexu Sun Wenxin Li Yanwei Jing Shuchun Duan Xiaoyang Wei Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter Energy Reports Neutral point clamped Double modulation wave Capacitor voltage balance Third-order current harmonic |
| title | Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter |
| title_full | Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter |
| title_fullStr | Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter |
| title_full_unstemmed | Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter |
| title_short | Third-order current harmonic suppression and neutral-point voltage balance control strategy for single-phase three-level NPC inverter |
| title_sort | third order current harmonic suppression and neutral point voltage balance control strategy for single phase three level npc inverter |
| topic | Neutral point clamped Double modulation wave Capacitor voltage balance Third-order current harmonic |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722016018 |
| work_keys_str_mv | AT yingjunguo thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT zhaoyangli thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT lijingzhao thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT hexusun thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT wenxinli thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT yanweijing thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT shuchunduan thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter AT xiaoyangwei thirdordercurrentharmonicsuppressionandneutralpointvoltagebalancecontrolstrategyforsinglephasethreelevelnpcinverter |