A distribution network capacitor configuration method based on genetic algorithm guiding trust-tech technology

A genetic algorithm and configuration method technology, applied in the field of distribution network capacitor configuration, can solve the problems of performance dependence, unable to obtain global optimal solution, large amount of calculation, etc., to reduce network loss and operating cost, and improve local optimization ability , the effect of optimizing the voltage distribution
CN105896557BActive Publication Date: 2018-02-23RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
Publication Date
2018-02-23

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a distribution network capacitor configuration method based on genetic algorithm guiding Trust-Tech. The distribution network capacitor configuration method includes the steps of taking the minimum total cost during the operation of a distribution network capacitor as an objective function, and establishing a constrained non-linear optimization model for capacitor configuration; constructing flow equations, node voltage, circuit thermal limit and constraints under which the maximum / minimum number of capacitors can be installed; representing each individual in a group with a binary character string, using a genetic algorithm for determining an initial optimal solution in a random search manner, and reducing the number of optimization layers; and using the Trust-Tech for finding out a local optimal solution of each region by searching layer by layer until search conditions are met. The invention overcomes the difficult problems that optimization problems are highly nonlinear, control variables are mixed integers, a global optimal solution is hard to obtain by using a conventional method and the calculated amount results are random while solving the capacitor configuration problem in the distribution network.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a distribution network capacitor allocation method guided by a genetic algorithm based on Trust-Tech technology. Background technique

[0002] The distribution network is the last link of power supply. If there is a large amount of reactive power flowing in the network, the network loss of the distribution network will increase and the voltage quality will become low. Therefore, under the condition that the active transmission power remains unchanged, the transmission of reactive power in the network should be reduced as much as possible. This requires the configuration of reactive power in the network to balance the reactive power on the spot. This method is economical and effective, but how to reasonably configure the reactive power Power supply is a very complex problem.

[0003] The reactive power optimization problem of distribution network is a large-scale nonlinear programming problem with multiple constraints, integers...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More