A static security domain analysis method for large-scale new energy-con-taining power systems based on two-stage stochastic second-order cone optimization
In order to safeguard the operation capability of large-scale new energy-containing power systems,a two-stage stochastic second-order cone optimization method is proposed to ana-lyze the static security domain of large-scale new energy-containing power systems.The con-straints in the SSSR model of the static security domain of the large-scale new energy power system are used to solve the effective distance of the boundary of the static security domain,and the generator active power in the optimized SSSR model and the effective distance of the boundary in the SSSR model are used as the objectives of the two-phase solving,so as to obtain the maximization of the effective distance of the boundary with the value of active power close to the optimal value,and then to analyze the security and safety margins of the basic operation points in the effective boundary of SSSR,so as to obtain the static security domain of the new energy power system.Analyze the security and security margin of the base operation point within the effective boundary of SSSR,and obtain the static security domain of the power sys-tem containing large-scale new energy.Experiments show that this method can be effectively applied to analyze the static security domain of the power system,and when the load of the power system is too large,its security domain area becomes smaller;when the value of the de-coupling parameter is 12％,the static security domain of the power system can be guaranteed to be optimal.
Random second-order coneTwo-stage optimizationPower systemsteady-state se-curity region
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