Distributed multi-region power transmission network collaborative economic dispatching method and computing device

Abstract

The invention provides a distributed multi-region power transmission network collaborative economic dispatching method and a computing device.The distributed multi-region power transmission network collaborative economic dispatching method comprises the steps that firstly, in a multi-parameter planning theory, piecewise linearity or quadratic convexity of a value function and the property of corresponding parameter feasible space definition on limited polygon critical domain sets are utilized; taking boundary phase angle information as a parameter, and re-expressing a multi-region collaboration problem as a multi-parameter linear or quadratic programming problem; secondly, asynchronously and synergistically updating the boundary phase angle of each region in a mode of designing block coordinate descent according to the graphical characteristics of the critical region, realizing coordinate exploration crossing the critical region, and iteratively reducing the economic cost of system operation while ensuring feasible scheduling; and finally, designing an effective parameter coordinate system rotation strategy, and ensuring that the optimal economic operation cost is efficiently obtained in the distributed solving process by utilizing the characteristics of the special subgradient direction for the descending process.

Description

technical field [0001] The invention relates to the field of multi-area power dispatching, in particular to a distributed multi-area transmission network coordinated economic dispatching method and a computing device. Background technique [0002] The essence of the formulation of the tie line plan is the coordinated economic dispatch problem of multi-regional transmission networks. Since it is difficult to completely centralize the data in a single entity, distributed technology is needed to solve it. In current practical applications, a large number of interconnected systems still use simplified and approximate distributed technology to formulate connection line plans empirically. On the one hand, the results given by the method are not theoretically guaranteed, and are often too conservative, and do not make full use of the channel capacity of the connection line to realize the cross-regional dispatch of new energy; on the other hand, the information interaction between r...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the existing technology cannot safely and efficiently solve the multi-regional coordinated economic dispatch problem, the present invention proposes a distributed multi-regional transmission network coordinated economic dispatch method and computing device

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