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Method for correcting new energy power station grid connection performance evaluation indexes

An evaluation index and new energy technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of lack of timeliness, difficulty in taking into account the operating characteristics of regional power grids, etc., and achieve high classification accuracy, fast calculation speed, and easy implementation Effect

Active Publication Date: 2019-05-10
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY +2
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Problems solved by technology

At present, the basis for evaluating the grid-connected performance of new energy power plants is the fixed parameters in the promulgated standards, which lack timeliness, and it is also difficult to take into account the operating characteristics of the regional power grid.

Method used

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  • Method for correcting new energy power station grid connection performance evaluation indexes
  • Method for correcting new energy power station grid connection performance evaluation indexes
  • Method for correcting new energy power station grid connection performance evaluation indexes

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to the following specific embodiments.

[0040] The patent of the present invention provides a new energy power station grid-connected performance evaluation index correction method. The technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the drawings in the embodiment of the patent application. figure 1 It shows a schematic diagram of the self-adaptive correction scheme of the grid-connected performance evaluation index of the new energy power station;

[0041] The system of the new energy power station grid-connected performance evaluation index correction method mainly includes the key section identification module, the power grid auxiliary control decision-making module, the support vector machine model module, the power grid operati...

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Abstract

The invention provides a method for correcting new energy power station grid connection performance evaluation indexes. The method comprises: a grid operation data interface which transfers the operating data of the grid to a critical section identification module; a critical section identification module which determines a critical section based on the data transmitted by the grid operation datainterface; a grid-assisted control decision-making module which provides assisted decision making; a new energy power station operation data interface which transfers the operation data of the new energy power station to a new energy power station grid connection performance evaluation software module; a new energy power station grid connection performance evaluation software module which evaluates the grid connection performance of the new energy power station based on the operation data of the new energy power station; a support vector machine model module for modeling; and a new energy power station grid connection performance evaluation index adaptive correction module which can sort evaluation indexes.

Description

technical field [0001] The invention relates to an evaluation index correction method, in particular to a new energy power station grid-connected performance evaluation index correction method. Background technique [0002] The integration of large-scale new energy generation brings new challenges to power grid dispatching and operation control. Before new energy power plants are connected to the grid, it is necessary to test and evaluate their grid-connected performance to ensure the security and stability of the power grid after large-scale new energy access. important means of operation. However, limited by capacity and technology, only inverters or power generation units can be tested and field tested at this stage. The grid-connected performance of new energy power stations cannot be field tested at this stage, and simulation methods are needed to solve the problem. [0003] The grid-connected performance evaluation of new energy power plants is based on various operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
Inventor 甘嘉田宋锐宋晓童张磊杨立滨李春来刘艳章李正曦杨军姜达军
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY
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