Robust scheduling method with consideration of flexible adjustment of power grid structure

Abstract

The invention discloses a robust scheduling method with consideration of flexible adjustment of a power grid structure. The method comprises: (1), a robust scheduling calculation parameter is inputted; (2), a robust scheduling model with consideration of flexible adjustment of a power grid structure is constructed, wherein the model based on a background of dealing with uncertainty uses the pursuit of optimal grid operation economy as an objective function and a related constraint of a decision variable and an operating range constraint under zone uncertainty are met; (3), on the basis of a principle of duality and a Benders algorithm, robust scheduling model solving is carried out; and (4), a robust scheduling result is outputted, wherein the result includes a provided power scheduling output, a reserve capacity, and a power transmission element operating state of a decision. Therefore, uncertainty of the load and renewable energy source power in the power system can be dealt with; a technical support is provided for power system optimization operation under the uncertainty background; and the power system source-load balancing capability as well as security and economy of grid operation is improved.

Description

technical field [0001] The invention relates to a robust scheduling method considering the flexible adjustment of the grid structure, and belongs to the technical field of electrical engineering. Background technique [0002] At present, as the load forms in the power grid become more and more diverse, and the wind power, photovoltaic and other renewable energy generation with inherent random fluctuation characteristics are integrated into the power grid on a large scale, the power system dispatching must face the situation of uncertainty and unclear power flow. , which undoubtedly exacerbated the contradiction between source-network-load, and the power grid structure has the problem of non-coherence of source-network-load that is not suitable for it. For this reason, grid economic dispatching technologies to deal with uncertainties have emerged, but they mainly focus on coordination strategies or optimization methods to deal with uncertainties under the condition that the g...

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Problems solved by technology

The Chinese patent with the patent application number ZL201410134744.2: "A Real-time Scheduling Method for AGC Units Based on an Effective Static Security Domain" provides a real-time scheduling method for AGC units based on an effective static security domain. The technical solution provided by this invention Constructed a multi-objective real-time scheduling model with AGC unit operation base point and participation factor as decision variables, which can provide the setting of AGC unit oper

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