Loss reduction method for automatic reconstruction of power distribution network

Abstract

The invention discloses a loss reduction method for automatic reconstruction of a power distribution network, and overcomes the problems of insufficient automation of the power distribution network and economic operation of the network under the coexistence of light load and heavy load in the prior art. The method comprises the following steps of: detecting network data of the power distribution network, and sorting and coding the data; calculating the line loss of each branch in the power distribution network by using a forward-backward substitution method; carrying out 0 / 1 coding on each section of line of the current network, and then constructing a target function; automatically optimizing and adjusting the operation mode of the power distribution network by using a particle swarm optimization algorithm; calculating line loss and distribution transformer loss after network reconstruction through a forward-backward substitution method; and comparing the line loss and the distribution transformer loss before and after the whole looped network switch is reconstructed. A network reconstruction decision model of a typical power supply unit of the power distribution network for low-loss economic operation is provided, the operation mode is automatically and dynamically adjusted through the power distribution network, the problem of network economic operation under the coexistence of light load and heavy load is systematically solved, and the network loss rate is reduced.

Description

technical field [0001] The invention relates to the technical field of power system distribution network optimization, in particular to a loss reduction method for automatic reconfiguration of a distribution network. Background technique [0002] Line loss refers to the loss and loss of power generated in various links such as power transmission, power transformation, power distribution and sales during the process of power transmission from power plants to power users. The line loss in the power grid accounts for a considerable part of the total power generation, so reducing the line loss has important practical significance. At present, the difficulty faced by the distribution network operation is the coexistence of heavy load and light load, but the load growth is uneven, and the seasonality of electricity consumption is obvious, which makes this problem more and more prominent. In the long-term operation and management process of distribution network, more attention has...

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Problems solved by technology

But there is no mention of distribution network automation, nor does it reduce line loss from the aspect of network reconfiguration

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