Multi-target power distribution network dynamic reconstruction method facing electric power market

Abstract

The invention discloses a multi-target power distribution network dynamic reconstruction method facing an electric power market, comprising steps of using prediction to obtain distributed power supply contribution data and load changing data, dividing the load curve and the distributed power supply contribution curve into sections in a user target cycle, taking the maximum of the operation benefit sum of the power supply enterprise in a target cycle as an optimization seeking target function, and using a simulation plant cultivation algorithm to perform static reconstruction in a section and dynamic coordination on reconstruction schemes of various sections to obtain the optimal combination state of the switches in a whole reconstruction cycle. As a result, the power distribution company purchases electric power from the distributed power supplies in the power plant and on the user side and sells the electricity to the user, which overcomes the current problems that the current power distribution network reconstruction algorithm is hard to adapt to the real-time change of the distributed power supply distribution and the circuit load.

Description

technical field [0001] The invention relates to a method for dynamic reconfiguration of a multi-objective power distribution network oriented to an electric power market. Background technique [0002] Distributed power generation is a small power generation device installed on the user side. It has developed rapidly due to its good economic and environmental benefits. The access of a large number of distributed power sources has changed the structure of the distribution network and affected the operation mode of the distribution network. . In the electricity market environment, distributed power can also supply power to the grid while meeting user needs. The power supply company can simultaneously purchase electricity from the electricity market and users who have installed distributed power sources, and sell electricity to users. In order to obtain the maximum profit, the power supply company needs to comprehensively consider the coordination relationship between the powe...

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Problems solved by technology

[0004] At present, in the research on dynamic reconfiguration at home and abroad, the time section is usually divided first, and each time period is simplified to a constant load period for static reconfiguration, and then the analytical method is used to optimize the switch combination state of dynamic reconfiguration, but it needs The number of static reconfigurations is large, and the calculation time is long, which is difficult to meet the needs of the actual operation of the power grid.

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