Corrective security-constrained optimal power flow considering dynamic thermal line rating and fast control of battery storage and VSC-HVDC

This paper presents a novel corrective security-constrained optimal power flow (CSCOPF) that integrates dynamic thermal line rating and converter fast control of battery storage system (BSS), and voltage source converter high voltage direct current (VSC-HVDC) in N-1 operations. Firstly, to prevent the damage aggravation before the post-contingency rescheduling of the traditional control resources (e.g. thermal generator) takes place, a two-stage post-contingency corrective control in this CSCOPF is proposed, which leverages the converter's fast control of BSS and VSC-HVDC. Secondly, based on the short-term allowable operation temperature (SAOT) and the maximum thermal accumulation (MTA), this paper employs a set of temporary security constraints for AC and DC lines to mine the short-term overload endurance capacity during the post-contingency period. Thirdly, a fast solution method leveraging physical knowledge and the Multi-cut Benders-based decomposition (MBD) method is proposed to efficiently solve the model. Finally, the results of two modified test systems based on the IEEE 14-bus and 118-bus system demonstrate the benefits of the above joint consideration and the effectiveness of the solution method.