Determination method of optimal dispatching strategy for active power distribution network

Abstract

A determination method of an optimal dispatching strategy for an active power distribution network is proposed to optimize the dispatching of the active distribution network with the "wind-light-fuel-storage", which takes the active distribution network operating cost in a complete cycle as the dispatching objective function. The method comprises steps of (1) establishing the active distribution network dispatching objective function and each constraint condition in a complete cycle according to the active distribution network dispatching requirements and the specific control variable form; (2) collecting the active output data of the wind / light electric field contained in the area where the active distribution network is located, sending the data to an active distribution network dispatching control center, wherein the wind / light electric field generates power by the maximum power point tracking mode to ensure that the maximum use of green energy; and (3) combining the active distribution network operating cost in the complete cycle, using the simulated annealing algorithm to find the alternatives in the constraint condition until the algorithm converges, and outputting the optimization scheme and the objective function value at this time. Therefore, the optimal dispatching strategy for the active power distribution network is determined.

Description

technical field [0001] The invention relates to a method for determining an optimal scheduling strategy of an active distribution network, belonging to the technical field of electric power distribution networks. Background technique [0002] The increasingly serious environmental pollution and the shortage of traditional fossil fuels have driven the rapid development of distributed power generation technology, especially renewable energy power generation technology. The future distribution network must meet the compatibility and inclusion of distributed renewable energy power generation. As the future development trend of smart distribution network, active distribution network is an important technical means to realize the widespread access and high penetration of distributed power in distribution network. Active distribution network can be defined as: a distribution network that can comprehensively control distributed resources (such as distributed energy, flexible loads, ...

AI Technical Summary

Problems solved by technology

However, the inherent uncertainty of intermittent renewable energy power output, the coupling correlation of energy storage systems on different time sections caused by their own energy constraints, and the flexible variability of the position of tie switches in the distribution network make active power distribution The optimal dispatching strategy of the distribution network is very complicated, and the optimal dispatching model and its calculation method based on the traditional optimal power flow are no longer applicable to the active distribution network.

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