High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter
A three-phase three-level transformerless T-type grid-connected inverter system with three-level boost maximum power point tracking converter is introduced in this article for high-voltage high-power applications. First, the mathematical model of grid-connected photovoltaic inverter system is built....
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2019-04-01
|
| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814019843369 |
| _version_ | 1818872561184800768 |
|---|---|
| author | Zhi Zhang Hao Zhou |
| author_facet | Zhi Zhang Hao Zhou |
| author_sort | Zhi Zhang |
| collection | DOAJ |
| description | A three-phase three-level transformerless T-type grid-connected inverter system with three-level boost maximum power point tracking converter is introduced in this article for high-voltage high-power applications. First, the mathematical model of grid-connected photovoltaic inverter system is built. Second, a multiloop interleaved control scheme is proposed for three-level boost maximum power point tracking converter to reduce the ripple of the inductor current and balance the capacitor voltage of DC bus. A predictive current control method and a power feedforward strategy are also proposed for the T-type three-level inverter part to reduce the harmonic content of grid-connected current and to improve the dynamic response of the system, respectively. In order to solve complex algebraic computation of traditional space vector pulse width modulation or multi-carrier pulse width modulation method, a single-carrier pulse width modulation method is presented for T-type three-level inverter. Finally, all control strategies and modulation method are implemented on a single-chip digital signal processor. A high conversion efficiency, low cost, and low harmonic current could be obtained on a 23-kW experimental prototype. |
| first_indexed | 2024-12-19T12:40:46Z |
| format | Article |
| id | doaj.art-e8b314d7653746d0acc32b4630ed7c4c |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-19T12:40:46Z |
| publishDate | 2019-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-e8b314d7653746d0acc32b4630ed7c4c2022-12-21T20:20:58ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402019-04-011110.1177/1687814019843369High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converterZhi Zhang0Hao Zhou1College of Electronic Engineering, Dongguan University of Technology, Dongguan, ChinaFaculty of Automation, Guangdong University of Technology, Guangzhou, ChinaA three-phase three-level transformerless T-type grid-connected inverter system with three-level boost maximum power point tracking converter is introduced in this article for high-voltage high-power applications. First, the mathematical model of grid-connected photovoltaic inverter system is built. Second, a multiloop interleaved control scheme is proposed for three-level boost maximum power point tracking converter to reduce the ripple of the inductor current and balance the capacitor voltage of DC bus. A predictive current control method and a power feedforward strategy are also proposed for the T-type three-level inverter part to reduce the harmonic content of grid-connected current and to improve the dynamic response of the system, respectively. In order to solve complex algebraic computation of traditional space vector pulse width modulation or multi-carrier pulse width modulation method, a single-carrier pulse width modulation method is presented for T-type three-level inverter. Finally, all control strategies and modulation method are implemented on a single-chip digital signal processor. A high conversion efficiency, low cost, and low harmonic current could be obtained on a 23-kW experimental prototype.https://doi.org/10.1177/1687814019843369 |
| spellingShingle | Zhi Zhang Hao Zhou High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter Advances in Mechanical Engineering |
| title | High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter |
| title_full | High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter |
| title_fullStr | High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter |
| title_full_unstemmed | High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter |
| title_short | High performance of three-level T-type grid-connected photovoltaic inverter system with three-level boost maximum power point tracking converter |
| title_sort | high performance of three level t type grid connected photovoltaic inverter system with three level boost maximum power point tracking converter |
| url | https://doi.org/10.1177/1687814019843369 |
| work_keys_str_mv | AT zhizhang highperformanceofthreelevelttypegridconnectedphotovoltaicinvertersystemwiththreelevelboostmaximumpowerpointtrackingconverter AT haozhou highperformanceofthreelevelttypegridconnectedphotovoltaicinvertersystemwiththreelevelboostmaximumpowerpointtrackingconverter |