Real-time Dispatch with Risk Considerations for Wind Power Integrated System Aiming at Security-economy Coordination

Abstract

In order to ensure wind power accommodation with security constraints, the active power real-time dispatch for wind power integrated system need to handle the contradiction between intermittent wind power and power network security, aiming at security-economy coordination. Therefore, the mathematical uncertainty models of wind power and N-1 transmission line faults are constructed, and a risk-based decision-making model for real-time dispatch is proposed based on probability and criticality analysis of stochastic disturbance, which reducing the total risk under different operation conditions in the future period. And the simulation results of 30-bus test system verified the rationality and effectiveness of the proposed method.