A Low-Harmonic Control Method of Bidirectional Three-Phase Z-Source Converters for Vehicle-to-Grid Applications
| Autor: | Siu Lau Ho, Siu Wing Or, Wenzheng Xu, Ming Liu, Ka Wing Chan |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Total harmonic distortion
Computer science Energy Engineering and Power Technology Transportation Topology (electrical circuits) Converters Three-phase Control theory Distortion Harmonics Automotive Engineering Electrical and Electronic Engineering MATLAB computer Voltage computer.programming_language |
| Zdroj: | IEEE Transactions on Transportation Electrification. 6:464-477 |
| ISSN: | 2372-2088 |
| DOI: | 10.1109/tte.2020.2984420 |
| Popis: | Three-phase $Z$ -source inverters provide a solution of voltage boosting by a single-stage topology. They are also capable of bidirectional operation as rectifiers, thus have great potential for applications in the field of transportation electrification such as vehicle-to-grid (V2G) chargers. In this article, three new modulation schemes for three-phase $Z$ -source converters are proposed and investigated. The best performed one is further developed to a closed-loop proportional–integral (PI) control method. Although the voltage conversion ratio is flexible, the output voltage total harmonics distortion (THD) is below 3% within the voltage ratio range 0.5–2.5. The effectiveness of the proposed method has been fully validated in MATLAB/Simulink simulations and RT-Lab hardware-in-loop (HIL) experiments based on the real-time simulator OPAL-RT OP4510. Compared to existing control methods, the proposed one performs better with reduced harmonics, flexible voltage gain, and simpler control algorithm. |
| Databáze: | OpenAIRE |
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