New energy power system active power regulation demand calculation method and system considering global inertia and local voltage safety constraint

Abstract

The invention discloses a new energy power system active power regulation demand calculation method and system considering global inertia and local voltage safety constraints. The method comprises the steps of obtaining topological structure data and operation condition data of a power grid and fault information and scheduling plan information of the power grid; constructing a new energy active power stochastic optimization scheduling model by taking the minimum comprehensive adjustment cost as a target; considering global inertia and local voltage safety, and constructing a constraint condition set of the model; and adopting a two-stage random-robust optimization scheduling method to perform hierarchical solution on the new energy active power random optimization scheduling model to obtain the active power optimal regulation quantity of the synchronous unit and the new energy station. According to the method, active scheduling of the new energy power system is realized under the condition of considering economy and operation safety, and the method is favorable for guiding formulation of an optimal scheduling strategy of the power system containing large-scale new energy and safe operation of the system.

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