1. 南瑞集团有限公司(国网电力科学研究院有限公司), 江苏省南京市 211106;2. 智能电网保护和运行控制国家重点实验室, 江苏省南京市 211106
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China;2. State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106, China
With the rapid development of ultra-high voltage AC and DC channel and the increase of large-capacity power bases, power system in China shows obvious integration characteristics of power balance in entire power grid, which poses new challenges to the existing model of scheduling plan with provincial balance and weakly coupled dispatching at all levels. For this reason, an integrated optimization model of power generation-transmission-utilization planning for the entire power grid is proposed, which is suitable for engineering practice and takes the characteristics of multi-energy generation complementarity into account on the generation side, as well as transmission operation characteristics of ultra-high voltage lines and flexible load response characteristics on the demand side. The model of multi-energy complementarity on generation side is established, which can reduce the fluctuation of clean energy and improve the accommodation of clean energy. The flexible load response model on the demand side is established, which can coordinate with the power adjustment of the power generation to improve the accommodation space of clean energy. The power model of transmission channel is established to connect the energy base with the load center, which can globally consider the characteristics of power generation and consumption of power grid on sending and receiving ends, the operation cost of the entire gird is reduced. Based on the actual data of a cross-regional interconnected power grid in China, the validity of the proposed model is verified.
XU Fan, TU Mengfu, LI Lili,et al.Scheduling Model and Solution of Integrated Power Generation in Power Grid for Clean Energy Accommodation[J].Automation of Electric Power Systems,2019,43(19):185-193. DOI:10.7500/AEPS20181204001.