煤电灵活性改造对构建新型电力系统的影响OA

'Flexible adaptability'is a key characteristic of new-type power system,and the flexibility retrofitting of coal-fired power will play an important role in the development of new-type power system.However,current research on the optimal proportion of coal-fired power flexibility retrofitting to meet the peak-shaving capacity requirements of new-type power system is insufficient,and does not provide precise guidance for the functional transformation and retrofit of regional coal-fired power plants.The study explores the optimal path for coal-fired power flexibility retrofits to meet the peak-shaving capacity requirements of Guangdong's new-type power system.The results show that:① The moderate flexibility retrofit scenario(S2)focuses on enhancing generation capacity to meet the growing electricity demand,and it has the highest overall performance in terms of flexibility,making it the optimal retrofit technology solution.② There is a threshold for the combination of coal-fired power flexibility retrofit technologies.In the optimal scenario(S2),the minimum technical output ratio for coal-fired power is 20%,and when the proportion of baseload and flexibility for peak-shaving is 0.1∶0.7,the power system is most secure and reliable.③ The three key quantitative indicators—'proportion of installed flexible power capacity,''probability of insufficient flexibility,'and'intercity power trading volume'—can effectively reflect the transformation of baseload coal-fired power into flexible peak-shaving coal-fired power,as well as the impact of coal power retrofit technologies on the power system.These indicators provide crucial references for the future quantitative evaluation of the'flexible adaptability',characteristics of new-type power system.The results of this study provide a theoretical foundation for the future flexibility retrofitting of coal-fired power and the development of new-type power system in Guangdong Province.