Parameter fitting-based voltage controlling method for active distribution feeders

A voltage control method and active distribution network technology, applied in the direction of AC network voltage adjustment, etc., can solve the problems of occupying storage space, communication congestion, and large increase in the calculation amount of the total control unit

Active Publication Date: 2015-07-01
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 onl

Method used

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  • Parameter fitting-based voltage controlling method for active distribution feeders
  • Parameter fitting-based voltage controlling method for active distribution feeders
  • Parameter fitting-based voltage controlling method for active distribution feeders

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Embodiment Construction

[0108] In this example, if figure 1 As shown, the active distribution network feeder is connected to the large power grid through a distribution transformer; the active distribution network feeder includes a busbar, a general control unit set on the busbar, N feeder lines and communication lines, several voltage regulating devices and a feeder control unit , the voltage regulating device is a reactive power compensation device or a distributed power supply; according to the location of several voltage regulating devices, several feeder lines connected to the bus are divided into several feeder line intervals, so that there is one and only one in each feeder line interval The voltage regulating equipment and the feeder control unit used to control the corresponding voltage regulating equipment; N communication lines are respectively connected to the feeder control unit on each feeder in turn, and connected to the general control unit; note that there are a total of N feeder inte...

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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...

Claims

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Application Information

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IPC IPC(8): H02J3/12
CPCH02J3/12
Inventor 吴红斌黄辰阳王东旭
Owner HEFEI UNIV OF TECH
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