Multi-objective Optimization Method for Emergency Load Shedding Control Considering Based on Load Classification

The development of smart grid allows load classification control and puts forward higher requirements for load shedding control. Therefore, focusing on the decision-making problem of load reduction control, a multi-objective optimization strategy based on load classification is proposed from the two aspects of system economy and stability When the compensation amount of interruptible load and the penalty amount of load reduction conflict with each other, a three-objective scheduling model aiming at the compensation amount of interruptible load, the penalty amount of load reduction and voltage stability index is established. At the same time, aiming at the poor stability of the traditional NSGA-II algorithm, the non dominated sorting method based on sequential search strategy and the screening strategy based on reference points are introduced to improve the operation speed and ensure the balanced distribution of solution sets. Finally, the algorithm is verified by taking ieee10 machine 39 bus system as an example. The results show that the control strategy obtained by the algorithm can realize the optimal control of coordinated economy and voltage stability.