Two-stage Transient-stability-constrained Optimal Power Flow for Preventive Control of Rotor Angle Stability and Voltage Sags  

作　　者：Jorge Uriel Sevilla-Romero Alejandro Pizano-Martínez Claudio Rubén Fuerte-Esquivel Reymundo Ramírez-Betancour 

机构地区：[1]the Faculty of Electrical Engineering,Universidad Michoacana de San Nicolás de Hidalgo,58030 Morelia,México [2]the Department of Electrical Engineering,Universidad of Guanajuato,36787 Salamanca,México [3]the Department of Electrical and Electronic Engineering,Universidad Juárez Autónoma de Tabasco,86040 Villahermosa,México

出　　处：《Journal of Modern Power Systems and Clean Energy》2024年第5期1357-1369,共13页现代电力系统与清洁能源学报（英文）

基　　金：supported by the Fondo de Sustentabilidad Energética SENER-Conacyt,México(No.246949,No.249795)。

摘　　要：In practice,an equilibrium point of the power system is considered transiently secure if it can withstand a specified contingency by maintaining transient evolution of rotor angles and voltage magnitudes within set bounds.A novel sequential approach is proposed to obtain transiently stable equilibrium points through the preventive control of transient stability and transient voltage sag(TVS)problems caused by a severe disturbance.The proposed approach conducts a sequence of non-heuristic optimal active power re-dispatch of the generators to steer the system toward a transiently secure operating point by sequentially solving the transient-stability-constrained optimal power flow(TSC-OPF)problems.In the proposed approach,there are two sequential projection stages,with the first stage ensuring the rotor angle stability and the second stage removing TVS in voltage magnitudes.In both projection stages,the projection operation corresponds to the TSC-OPF,with its formulation directly derived by adding only two steady-state variable-based transient constraints to the conventional OPF problem.The effectiveness of this approach is numerically demonstrated in terms of its accuracy and computational performance by using the Western System Coordinated Council(WSCC)3-machine 9-bus system and an equivalent model of the Mexican 46-machine 190-bus system.

关 键 词：Dynamic security assessment transient stability transient voltage sag(TVS) optimal power flow(OPF) 

分 类 号：TM712[电气工程—电力系统及自动化] TM714.2