In the quest for a greener future, researchers from Hebei Key Laboratory of Power Electronics for Energy Conservation and Drive Control at Yanshan University and Bingtuan Xingxin Vocational and Technical College have made a significant stride. Their groundbreaking study, published in the journal ‘Dianli jianshe’ (which translates to ‘Power Construction’), introduces a novel approach to optimizing electric-thermal integrated energy systems. This approach not only enhances wind power utilization but also significantly reduces carbon emissions, a critical step towards sustainable energy practices.
The research, led by HE Liangce, ZHANG Yifei, LU Zhigang, and CAI Yao, focuses on the integration of combined cycle gas-steam units, power to hydrogen and heat, and compressed air energy storage (CCGT-P2HH-CAES) within an electric-thermal energy system. The team constructed a collaborative operation framework that maximizes the charging and discharging potential of CAES and the recycled thermal energy of P2HH. This framework is a game-changer, as it allows for a more efficient and eco-friendly energy dispatch model.
“By integrating these technologies, we can achieve a more balanced and sustainable energy system,” said HE Liangce, the lead author of the study. “The key is to fully utilize the potential of each component, ensuring that we minimize carbon emissions while maximizing energy efficiency.”
The study introduces a two-stage low-carbon economic dispatch model. The first stage involves an economic dispatch model for an electric-heat integrated energy system incorporating CCGT-P2HH-CAES. The carbon emission responsibilities of the demand side are quantified using carbon emission flow theory. The second stage employs the bilateral Shapley value method to calculate the carbon emissions range on the demand side, optimizing the difference between the carbon emission responsibility costs and demand response benefits.
This innovative approach promises to revolutionize the energy sector by making it more economically viable and environmentally friendly. The improved 6-bus power system and 6-node thermal system, investigated in several case studies, demonstrate the model’s effectiveness in achieving economic operation, wind power utilization, and carbon emission reduction.
“The results are promising,” said ZHANG Yifei, a co-author of the study. “Our model not only reduces carbon emissions but also ensures that the energy system operates economically, which is crucial for commercial viability.”
The implications of this research are vast. As the world continues to shift towards renewable energy sources, the need for efficient and low-carbon energy systems becomes increasingly important. This study provides a roadmap for achieving this goal, paving the way for future developments in the field. By integrating advanced technologies and optimizing energy dispatch, the energy sector can move closer to a sustainable future, benefiting both the environment and the economy.
