Frequency Support Coordinated Control Strategy of Renewable Distributed Energy Resource Based on Digital Twins
Abstract
:1. Introduction
2. Coordinated Control Method for Renewable Energy Generation
2.1. Topology of Inverter-Based Renewable Energy Sources
2.2. Least Squares Approximation
2.3. Distributed Coordinated Control Method
3. Coordinated Control of DERs Based on Digital Twins
3.1. Distributed Coordinated Control Based on Digital Twins
3.2. Digital Twin Modeling of DERs
4. Simulation and Case Study
4.1. Digital Twin Testing Platforms
4.2. Accuracy Testing of Digital Twin Models
4.3. Verification of Frequency Support Effectiveness
4.4. Technical Benefits
5. Conclusions
- A coordination control strategy for renewable DERs has been proposed, improving the output characteristics and addressing the shortcomings of differing and unexpected outputs, achieving optimized active power output.
- For conventional centralized and distributed coordination control methods, due to the drawbacks of centralized control, such as a large system computational load and poor safety due to centralized control, a distributed method for coordination control is proposed, offering better fault tolerance for the system.
- Digital twin technology is used to reduce the high real-time communication requirements of coordination control, reducing the communication channels for distributed coordination control from the original K2 to K and significantly decreasing communication demands.
- The distributed renewable energy coordination control strategy based on digital twin technology is compared with the scenarios of renewable DERs without support and with support but without coordinated control, fully demonstrating the effectiveness of the proposed method for grid frequency control.
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Control Method | Full Support Time(s) |
---|---|
Coordination Control Based on DT | 3.4 |
Traditional coordinated control | 4.2 |
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Chang, X.; Guo, X.; Wang, J.; Zhi, H.; Hao, L.; Ji, L. Frequency Support Coordinated Control Strategy of Renewable Distributed Energy Resource Based on Digital Twins. Electronics 2024, 13, 3403. https://doi.org/10.3390/electronics13173403
Chang X, Guo X, Wang J, Zhi H, Hao L, Ji L. Frequency Support Coordinated Control Strategy of Renewable Distributed Energy Resource Based on Digital Twins. Electronics. 2024; 13(17):3403. https://doi.org/10.3390/electronics13173403
Chicago/Turabian StyleChang, Xiao, Xiangyu Guo, Jinhao Wang, Huiqiang Zhi, Longfei Hao, and Liang Ji. 2024. "Frequency Support Coordinated Control Strategy of Renewable Distributed Energy Resource Based on Digital Twins" Electronics 13, no. 17: 3403. https://doi.org/10.3390/electronics13173403