Palavra-chave: POWER SYSTEMS OPERATION

HYDROELECTRIC-THERMAL GENERATION JACOBIAN MATRIX SINGULARITY SENSITIVITY ANALYSIS POWER SYSTEMS CONTINGENCY RANKING MAXIMUM LOADING POINT SECURITY ANALYSIS PRIMAL-DUAL ALGORITHMS RENEWABLE ENERGY GENERATION PERFORMANCE INDEX STEP OPTIMIZATION VOLTAGE STABILITY CONTINGENCY ANALYSIS HYDROTHERMAL INTERCONNECTED POWER SYSTEM INTERIOR POINT METHOD HYDROTHERMAL GENERATION SCHEDULING WARD EQUIVALENT NONLINEAR PROGRAMMING POWER TRANSMISSION OPTIMAL POWER FLOW