Power transmission and distribution network decomposition coordination reactive voltage control method based on asynchronous ADMM

Abstract

The invention provides a power transmission and distribution network decomposition coordination reactive voltage control method based on asynchronous ADMM, and belongs to the technical field of operation control of power systems. According to the method, a power transmission network and power distribution network coordinated reactive voltage control model is established for a power system comprising a power transmission network and a plurality of radial power distribution networks. By considering the actual situation that the difference between the computing power and communication conditionsof different power distribution networks is large, the invention provides an asynchronous distributed iterative solution algorithm between the power transmission network and the power distribution network in a power system, and decomposition coordination calculation of a power transmission and distribution coordinated reactive voltage control model is realized. The decomposition coordination control method of the reactive voltage control model has a good convergence rate, and can eliminate the safety problems of mismatching of transmission and distribution boundary power, voltage out-of-limitand the like. According to the method, coordinated reactive voltage control can be carried out on the power transmission network and the power distribution network, the safety risk is eliminated, thecoordination efficiency of a power system is high, and practical application is facilitated.

Description

technical field [0001] The invention relates to an asynchronous ADMM (alternating direction multiplier method)-based method for decomposing and coordinating reactive power and voltage control of a transmission and distribution network, which belongs to the technical field of operation control of electric power systems. Background technique [0002] With the sharp increase of flexible resources on the distribution network side, such as a large number of renewable energy sources and a large increase in dispatchable loads, the distribution network is playing an increasingly important role in the entire grid structure. There is an increasingly tight coupling relationship between networks. The traditional reactive power and voltage control of the transmission network and distribution network are carried out independently, and its disadvantages are that it may cause safety problems such as power mismatch at the transmission and distribution boundary and voltage over-limit. Theref...

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Problems solved by technology

However, there is still a lack of efficient asynchronous distributed algorithms

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