A complex power system operation error identification and automatic correction method and system
A power system, automatic correction technology, applied in system integration technology, information technology support system, electrical components, etc., can solve the problems of low error recognition rate, inconvenient operation for multiple iterations, high data-driven robustness, etc.
Active Publication Date: 2020-05-22
STATE GRID LIAONING ELECTRIC POWER RES INST +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The present invention overcomes the problem of low error recognition rate in the prior art, can identify data errors in power system operation information obtained by WAMS, realizes error data correction from the perspective of information reconstruction, and has high data-driven robustness sex
1. The invention overcomes the inconvenience of multiple iterative operations in the prior art. It does not need to approximate the solution of nonlinear equations. The accuracy of the obtained results is high, and the calculation time can be shortened, especially for complex power systems.
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0045] The specific implementation manners proposed by the present invention will be further described below in conjunction with the above-mentioned drawings. Such as figure 1 As shown, a complex power system operation error identification and automatic correction method is provided, which is realized by the following technical scheme:
[0046] Step 1: Based on the data drive of the full-dimensional operation information of each node in the complex power system, each PMU obtains the original sampling values of voltage, current, active and reactive vectors, and frequency;
[0047] Step 2: Establish the association model of each node based on the relationship between branches and nodes in the network, characterize the coupling relationship of each dimension component in the operation information of each node, and then establish the full-dimensional characteristic equation of the operation information of each node;
[0048] Further, the specific steps are as follows:
[0049]...
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 PUM
Login to View More Abstract
The invention discloses a method and a system for identifying and automatically correcting the operation errors of a complicated electric power system, and belongs to the field of electric power system operation. Based on a complete data space, the method and the system for identifying and automatically correcting the errors are provided for operation information of the complicated electric power system, the problem that the error identification rate is low in the prior art is overcome, the data errors in the operation information of the electric power system obtained by WAMS can be identified, the correction for error data is realized from the angle of information reconstruction, and the method and the system are of extremely high data drive robustness; the problem that ergodic data collection on all operation nodes is not realized in the prior art is overcome, the errors of equivalent parameters of each branched circuit of the electric power system are identified through ergodic data analysis, and the system is of extremely high model robustness; the problem that repeated iterative operation is inconvenient in the prior art is overcome, approximate solving for a nonlinear equation is not needed, the accuracy of the obtained result is high, and the computation time can be shortened, and the effect for the complicated electric power system is particularly obvious.
Description
technical field [0001] The invention relates to the field of power system operation, in particular to a complex power system operation error identification and automatic correction method and system. Background technique [0002] In the traditional power system, the current information of each power generation, power transmission and transformation, and power consumption nodes cannot be accurately detected. The calculation of power system operation information is generally based on the power equation of active and reactive power to solve the voltage, and then perform reverse iteration on the solved voltage. The active and reactive power calibration method is carried out, and there is a nonlinear relationship between the power equation and the voltage, so the power solution process can only rely on approximate mathematical methods such as iterative solutions in the actual implementation process, and the results obtained by this conventional method are not The exact solution w...
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 Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20Y02E40/70Y02E60/00Y04S10/00Y04S10/22
Inventor 葛维春王磊许韦华王顺江
Owner STATE GRID LIAONING ELECTRIC POWER RES INST