Parameter fitting-based voltage controlling method for active distribution feeders

Abstract

The invention discloses a parameter fitting-based voltage controlling method for active distribution feeders. The method is characterized by including the steps: 1, a master control unit acquires voltage state information of each feeder; 2, if a voltage minimum of each feeder is lower than a lower limit, parameter fitting-based feeder reactive power voltage-regulation or loading shedding operating voltage controlling is performed; 3, a voltage maximum of each feeder is higher than an upper limit, parameter fitting-based feeder reactive power voltage-regulation or parameter fitting-based feeder active power voltage-regulation is performed. The method has the advantages that all calculation tasks are performed in the master control unit, using great storage space is avoided, data communication quantity and communication times are decreased, and communication time and calculation time are shortened.

Description

technical field [0001] The invention relates to voltage control of a distribution network, in particular to a voltage control method for an active distribution network feeder based on parameter fitting. Background technique [0002] In recent years, with the increasingly serious problems of global energy shortage, environmental pollution and climate deterioration, accelerating the development and utilization of renewable energy has become the consensus of the international community, and vigorously developing renewable energy has become an important energy strategy for my country. With the increasing penetration rate of distributed power in the distribution network, the planning and operation of the distribution network are becoming more and more complex, and the operation of the traditional distribution network will face many challenges. In order to cope with the emerging problems, the traditional distribution network needs to be transformed into an active distribution netw...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing control methods concentrate the calculation tasks on the general control unit, which not only needs to store a large number of parameters of the distribution network, but also needs to obtain a large amount of real-time information from other control units; not only takes up a lot of storage space, but also due to The amount of data communication is large, which may cause communication congestion

At the same time, the concentration of calculation tasks greatly increases the calculation amount of the total control unit, and the calculation time is longer

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