Filter Extracted Sliding Mode Approach for DC Microgrids
| Autor: | Muhammad Ehab, Ali Raza, Abdul Rehman Yasin, Mudassar Riaz, Amina Yasin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
droop control
TK7800-8360 Computer Networks and Communications Computer science Settling time sliding mode control Sliding mode control Synchronization (alternating current) Hardware and Architecture Control and Systems Engineering Control theory Robustness (computer science) Rise time Signal Processing voltage regulation load sharing Voltage droop Voltage regulation DC microgrid Electrical and Electronic Engineering Electronics |
| Zdroj: | Electronics Volume 10 Issue 16 Electronics, Vol 10, Iss 1882, p 1882 (2021) |
| ISSN: | 2079-9292 |
| DOI: | 10.3390/electronics10161882 |
| Popis: | The advantages offered by DC microgrids, such as elimination of skin effect losses, no requirement of frequency synchronization and high efficiency for power transmission are the major reasons that microgrids have attracted the attention of researchers in the last decade. Moreover, the DC friendly nature of renewable energy resources makes them a perfect choice for integration with DC microgrids, resulting in increased reliability and improved stability. However, in order to integrate renewable energy resources with the DC microgrids, challenges like equal load sharing and voltage regulation of the busbar under diverse varying load conditions are to be addressed. Conventionally, droop control with PI compensation is used to serve this purpose. However, this cascaded scheme results in poor regulation to large load variations and steady state errors. To address this issue, this paper presents a sliding mode control-based approach. Key features of SMC are its ease of implementation, robustness to load variations, and fast dynamic response. The system model is derived and simulated to analyze the stability and performance of the proposed controller. An experimental test bench is developed to demonstrate the effectiveness of SMC against modeled dynamics and is compared with the droop controller. The results show an improvement of 26% and 27.4% in the rise time and settling time, respectively. Robustness of the proposed scheme is also tested by switching it with a step load and an improvement of 40% has been observed. |
| Databáze: | OpenAIRE |
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