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Method for optimizing grid-related parameters for power generator unit based on double-stranded quantum genetic algorithm

A technology of generator set and genetic algorithm, applied in the field of control, can solve problems such as not yet popularized

Active Publication Date: 2017-05-31
JIANGSU ELECTRIC POWER CO +2
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Problems solved by technology

The research on various parameters of the generator has become mature, but the research on the grid-related parameters of the unit, especially the research on parameter optimization to realize the coordination of the generator and the grid and improve the performance of the grid system has not yet been promoted.

Method used

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  • Method for optimizing grid-related parameters for power generator unit based on double-stranded quantum genetic algorithm
  • Method for optimizing grid-related parameters for power generator unit based on double-stranded quantum genetic algorithm
  • Method for optimizing grid-related parameters for power generator unit based on double-stranded quantum genetic algorithm

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Embodiment Construction

[0061] The following is based on Figure 1 to Figure 4 The specific embodiment of the present invention is further described:

[0062] Aiming at the defects of the background technology, the present invention proposes a double-chain quantum genetic algorithm-based network-related parameter optimization method for generator sets on the basis of the double-chain quantum genetic algorithm, which is specifically described below, including the following steps:

[0063] Step 1: Select the network-related parameters that need to be optimized for the generator set in the power grid system;

[0064] First of all, compare and select the network-related parameters of different generator sets, and establish an adjustable network-related parameter system for generator sets that affects the coordination of the generator set, which is divided into four types of parameters: excitation system, speed control system, AGC, and AVC. As for the optimized parameters, this embodiment mainly selects ...

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Abstract

The invention discloses a method for optimizing grid-related parameters for a power generator unit based on a double-stranded quantum genetic algorithm. The method comprises the following steps: selecting the grid-related parameters required for the optimization of the power generator unit in a power grid system; calculating constraint conditions of the grid-related parameters required for the optimization of the power generator unit and total objective functions with optimal transient stability; determining fitness functions of the grid-related parameters for the power generator unit; initializing a double-stranded quantum population; judging whether a current chromosome is mutant or not by utilizing the mutation probability and performing quantum bit non-gate mutation in case of mutation; converting the probability amplitude of each quantum bit of the current chromosome into a solution space, determining a value-substituted transient stability calculation program obtained by conversion into a total objective function value with optimal transient stability and performing fitness evaluation to determine individual fitness and store a global optimal solution; calculating a quantum rotation angle advance step length and updating a quantum gate to obtain a next generation of chromosome; by optimizing the grid-related parameters for the power generator unit, the transient stability of the system is improved, and the machine-grid coordination is realized.

Description

technical field [0001] The invention belongs to the technical field of control, and in particular relates to a method for optimizing network-related parameters of a generator set based on a double-chain quantum genetic algorithm. Background technique [0002] At present, the transient stability of the system in which the sub-regional power grid enters the island operation due to the disconnection of the communication fault between the sub-regional power grid and the large power grid is poor, and various small power grids with the risk of island operation or power grids with the risk of failure and entering transient operation , leading to poor transient stability of the system and poor machine-network coordination ability. Machine-network coordination means that the power plant's safety automatic devices, unit protection settings, speed control system, primary frequency regulation, excitation system, PSS control parameters and other equipment and parameters related to power ...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06N3/12
CPCG06N3/126G06F30/20Y02E60/00
Inventor 徐妍顾文蒋琛李辰龙杜先波唐一铭陈中李云倩
Owner JIANGSU ELECTRIC POWER CO
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