摘要
This study proposes a combined hybrid energy storage system(HESS) and transmission grid(TG) model, and a corresponding time series operation simulation(TSOS) model is established to relieve the peak-shaving pressure of power systems under the integration of renewable energy. First, a linear model for the optimal operation of the HESS is established, which considers the different power-efficiency characteristics of the pumped storage system, electrochemical storage system, and a new type of liquid compressed air energy storage. Second, a TSOS simulation model for peak shaving is built to maximize the power entering the grid from the wind farms and HESS. Based on the proposed model, this study considers the transmission capacity of a TG. By adding the power-flow constraints of the TG, a TSOS-based HESS and TG combination model for peak shaving is established. Finally, the improved IEEE-39 and IEEE-118 bus systems were considered as examples to verify the effectiveness and feasibility of the proposed model.
基金
supported by the State Grid Science and Technology Project (No.52999821N004)。
作者简介
Mingkui Wei received the B.S.degree at North China Electric Power University,Beijing,China.He is currently working in State Grid Corporation of China.His research interests include power system planning and power system operation analysis.wmk1666@163.com;Yiyu Wen received the master degree at Chongqing University,Chongqing,China.He is currently working in State Grid Corporation of China.His research interests include power system planning and power system operation analysis.287618178@qq.com;Qiu Meng is currently working towards the master degree in Southwest Jiaotong University,Chengdu,China.His research interests include renewable energy power system planning and operation.mq975611768@163.com;Shunwei Zheng is currently working towards the Ph.D.degree in Southwest Jiaotong University,Chengdu,China.His current research interests include renewable energy integration,and power system operation optimization.zheng_shunwei@foxmail.com;Yuyang Luo is currently working towards the master degree in Southwest Jiaotong University,Chengdu,China.His research interests include renewable energy power system planning and scheduling,and power system operation optimization.uoyuyang1015@foxmail.com;Kai Liao received the Ph.D degree at Southwest Jiaotong University in 2016,Chengdu,China.He is currently an Associate Professor in the School of Electrical Engineering with Southwest Jiaotong University,Chengdu,China.His research interests include wind power system control,and power system stability.iaokai_lk@hotmail.com。
