Active defense strategy formulation method for AC/DC hybrid power system based on master-slave game

Abstract

The invention discloses a leader-follower game alternating current and direct current hybrid electric power system active defense strategy making method. The leader-follower game alternating current and direct current hybrid electric power system active defense strategy making method specifically comprises the following steps of (1) describing a leader-follower game process between an electric power system relevant department and a system fault through a defender-attacker-defender three-layer model; (2) establishing a leader-follower game model for making an active defense strategy of the alternating current and direct current hybrid electric power system; (3) solving the D-A-D (Defender-Attacker-Defender) three-layer model; (4) enabling an optimal active defense strategy obtained from the step (3) of the electric power system to perform active defense on the alternating current and direct current hybrid electric power system. The leader-follower game alternating current and direct current hybrid electric power system active defense strategy making method of the invention accurately determines a current fragile source for the electric power system under the condition that fault cannot be foreseen, adopts the corresponding active defense strategy and accordingly prevents generation of cascading failure.

Description

technical field [0001] The invention relates to the field of power system fault prevention, in particular to a method for formulating an active defense strategy for an AC / DC hybrid power system based on a master-slave game. Background technique [0002] At present, in recent years, with the continuous development of the power system, the increasing scale of the power grid and the complexity of system components have become two major trends. However, the security and stability of the power system have also emerged. Especially with the gradual formation of the AC / DC hybrid transmission pattern, the AC and DC lines operating in parallel are closely related and affect each other, and the system operating characteristics are more complex. Large-scale power outages caused by partial faults of the power grid spreading to the entire network occasionally occur at home and abroad, causing serious social impact and economic losses. Therefore, it is a very important research topic to a...

AI Technical Summary

Problems solved by technology

However, the application of this model is often limited to pure AC systems and is applied to line defense work, so it needs to be extended

[0004] In general, there are certain deficiencies in the existing defense strategy formulation methods of the AC / DC hybrid system, and the deployment of active defense cannot be achieved. It is necessary to propose a new active defense of the AC / DC hybrid system based on the master-slave game. strategy formulation method

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