A Load Shedding Scheme for Long Term Voltage Stability Enhancement by Multi-Stage Model Predictive Control
Power system load shedding has been used as an emergency control method to prevent possible power system instability problems. In this paper, a new multi-stage model predictive control based load shedding scheme is proposed to enhance long term voltage stability of a power system. The main advantage of this new method is the capability of the scheme to handle multi-stage control actions, which may also be disturbances to a power system at a critical status toward instability. A new cost function is defined for the model predictive control scheme. The proposed scheme is tested on the New England 39-bus system to validate its efficiency and effectiveness in preventing system long term voltage stability problems.
Y. He et al., "A Load Shedding Scheme for Long Term Voltage Stability Enhancement by Multi-Stage Model Predictive Control", Advanced Materials Research, Vols. 383-390, pp. 4735-4741, 2012