Enhanced reduced‐order generalised integrator with delay compensation for harmonic suppression in distribution system
| Autor: | Pengyu Wang, Jianfeng Zhao, Baorun Li, Kangli Liu, Sen Zhang |
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| Rok vydání: | 2020 |
| Předmět: |
Computer science
020209 energy Computation 020208 electrical & electronic engineering 02 engineering and technology Converters Distribution system Control theory Integrator 0202 electrical engineering electronic engineering information engineering Power quality Electrical and Electronic Engineering Current loop Decoupling (electronics) Voltage |
| Zdroj: | IET Power Electronics. 13:2500-2510 |
| ISSN: | 1755-4543 1755-4535 |
| DOI: | 10.1049/iet-pel.2020.0002 |
| Popis: | Power electronicconverters have attracted significant attention in renewable energy generation and distribution systems. However, some crucial techniques, such as power quality and stability enhancement of converters, still need to be further improved. In this study, an improved reduced-order generalised integrator (ROGI), which can achieve decoupling, is proposed. It can reduce the α -axis and β -axis current coupling and improve the dynamic response performance, maintaining the advantage of the conventional ROGI (e.g. less computational burden). Besides, delay compensation is added to the proposed decoupled ROGI, which improves the stability of the current loop and can be effectively applied for the current/voltage harmonic suppression in the distributed system. Also, the procedures of parameter tuning and optimal delay compensation angle computation are given. Finally, the harmonic current compensation of the three-phase grid-connected converter is taken as an example for simulation analysis, and the experimental results verify the reasonability and effectiveness of the proposed method. |
| Databáze: | OpenAIRE |
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