Power distribution network stability and investment scheme determination method based on unit division

Abstract

The invention provides a power distribution network stability and investment scheme determination method based on unit division, and relates to the technical field of power distribution networks. According to the method, a power distribution network region is divided into n cell regions, and the area of each cell region is calculated; calculating a power density influence factor of each cell region according to the injected active power and reactive power in each cell region, the phase difference between the voltage module value and the voltage, a power distribution network synchronization coefficient, an active power control coefficient and a reactive power control coefficient; and determining the stability of the power distribution network system in the cell region of the power distribution network and an investment scheme required by each cell region according to the power density influence factor of each cell region. According to the method, the stability of a power distribution network system in each cell region is judged, so that the stability of the power distribution network is accurately judged; meanwhile, according to the method, power distribution is performed according to the stability of the power distribution network system in each cell region, so that the accuracy of power distribution network cell region investment can be improved.

Description

technical field [0001] The invention relates to the field of distribution network technology, in particular to a method for determining the stability and investment plan of a distribution network based on unit division. Background technique [0002] With the rapid and high-quality development of my country's economy, the requirements for accurate investment in the distribution network have also increased, and the load conditions in different cell areas are also different, and the different types of new energy sources on the power generation side of the distribution network are becoming increasingly complex, and the load on the load side has a significant impact on the voltage. Volatility and power requirements are getting higher and higher. The existing distribution network stability judgment method has the problems of large area, wide range, and unclear investment purpose. Although the overall distribution network tends to be stable, the distribution network system in some u...

AI Technical Summary

Problems solved by technology

The existing distribution network stability judgment method has the problems of large area, wide range, and unclear investment purpose. Although the overall distribution network tends to be stable, the distribution network system in some unit areas in the overall area has not reached Completely stable, resulting in poor investment accuracy and a large amount of investment waste

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