In the heart of China’s ambitious “Dual Carbon” goals, a groundbreaking study led by SUN Yiding, WANG Qianchen, and their team from the School of Electrical and Electronic Engineering at North China Electric Power University, along with collaborators from the State Grid Economic Research Institute, is set to revolutionize how we think about renewable energy transmission and storage. The research, published in the journal ‘Dianli jianshe’ (which translates to ‘Power Construction’), addresses the unique challenges posed by the construction of large-scale wind and solar power generation bases in the Gobi Desert and desertification lands.
The Gobi Desert and desertification lands offer vast, untapped potential for renewable energy. However, the inherent unpredictability of wind and solar power outputs presents significant challenges for power delivery and grid stability. Traditional ultra-high voltage direct current (UHVDC) transmission methods and storage planning techniques have struggled to keep up with the variability of these renewable sources. This is where the innovative work of SUN Yiding and his team comes into play.
The researchers have developed a novel UHVDC transmission power curve set construction method that specifically addresses the uncertainty of wind and solar power outputs. “Our method is designed to accommodate the diverse and unpredictable nature of renewable energy sources,” explains SUN Yiding. “By creating a more flexible and adaptive power curve, we can better manage the risks associated with load shedding and ensure a more stable power supply.”
But the innovation doesn’t stop at power curve formulation. The team has also introduced a system load shedding risk quantification index based on conditional value-at-risk (CVaR) theory. This index allows for a more precise assessment of the risks involved in power transmission and storage, enabling more effective planning and risk management.
The practical implications of this research are immense. As China and other countries around the world ramp up their renewable energy investments, the ability to efficiently transmit and store this power will be crucial. The proposed transmission-storage collaborative planning model, tailored specifically for the Gobi and desertification regions, promises to maximize renewable energy utilization and minimize the risk of power outages.
In a case study conducted on a wind-solar-thermal-storage integrated power generation base, the researchers demonstrated the feasibility and effectiveness of their approach. The results showed that the proposed method could effectively handle various wind and solar output scenarios, leading to a more reliable and efficient power delivery system.
This research is not just a theoretical breakthrough; it has real-world commercial implications. As the energy sector continues to shift towards renewable sources, the ability to manage and transmit this power efficiently will be a key competitive advantage. Companies and governments investing in renewable energy infrastructure will benefit greatly from the insights and methods presented in this study.
The work of SUN Yiding and his team is a significant step forward in the field of renewable energy transmission and storage. As we move towards a more sustainable future, the ability to harness the power of the Gobi Desert and desertification lands will be crucial. This research provides a roadmap for achieving that goal, paving the way for more efficient, reliable, and sustainable energy systems.
