Power grid line defense resource allocation method based on quantitative mixed integer multistage optimization

The invention discloses a power grid line defense resource allocation method based on quantitative mixed integer multistage optimization, which comprises the following steps: S1, initializing parameters, and inputting system network topology parameters, electric parameters of a generator and a line, load parameters, an attack resource upper limit value and a defense resource upper limit value; s2, constructing a power grid line defense resource allocation model based on a defense-attack-scheduling three-layer planning structure; s3, constructing a power grid line defense resource allocation attack party sub-problem based on a quantitative global variable structure and a duality theory; s4, constructing a power grid line defense resource allocation defender sub-problem based on a quantitative existence variable structure and a linearization method; and S5, obtaining an optimal solution of defense resource allocation by applying a multi-stage optimization method. 本发明公开了一种基于量化混合整数多级优化的电网线路防御资源分配方法，包括：S1：参数初始化，输入