Direct current system digital modeling method based on gradient descent machine algorithm

A gradient descent method, a technology for DC systems, applied in the field of digital modeling of DC systems based on gradient descent machine algorithms

Pending Publication Date: 2022-07-12
ECONOMIC TECH RES INST OF STATE GRID HENAN ELECTRIC POWER
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  • Abstract
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  • Application Information

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Problems solved by technology

With the continuous promotion and development of digital technology and computer machine algorithm technology in engineering construction applications, the original traditional DC system feeder extreme difference with simple calculation and application can no longer meet the current requirements, and the complex circuit after a high proportion of new energy access is very complex. The linear situation will also have a huge impact on the DC system, and it is urgent to develop towards intelligence and digitalization

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  • Direct current system digital modeling method based on gradient descent machine algorithm
  • Direct current system digital modeling method based on gradient descent machine algorithm
  • Direct current system digital modeling method based on gradient descent machine algorithm

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Embodiment Construction

[0105] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

[0106] Examples of such embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0107] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertic...

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Abstract

The invention relates to the technical field of power transmission and transformation projects, and discloses a gradient descent machine algorithm-based direct current system digital modeling method, which comprises the following steps of S1, machine algorithm analysis; through prediction and analysis of the data, especially analysis of unknown new data, accurate statistical prediction and solution of the data are achieved. S1.1, carrying out a gradient descent algorithm on the existing data; firstly, a coefficient vector is initialized, then a coefficient vector value is iterated and updated step by step, and minimization of an objective function is carried out until convergence; the gradient descent method is an iterative algorithm, an appropriate initial value x (0) is selected, iteration is continuously carried out, the value of x is updated, an objective function is minimized until convergence is achieved, the value of x is updated in the negative gradient direction in each step of iteration due to the fact that the negative gradient direction is the direction which enables the function value to descend fastest, and therefore the purpose of reducing the function value is achieved.

Description

Technical field [0001] The invention relates to the technical field of power transmission and transformation engineering, specifically a DC system digital modeling method based on gradient descent machine algorithm. Background technique [0002] At the moment when the State Grid is advocating the construction of a new power system with new energy as the main body, it is even more essential to use digital and intelligent means to ensure the safe and stable operation of the power system. At present, the digital simulation and modeling technology of the DC system still does not reach a certain research depth, and there is no research on the digital modeling technology for DC miniature circuit breaker range and cable calculation. The main research is still the main equipment selection and system simulation and battery modeling. With the continuous promotion and development of digital technology and computer algorithm technology in engineering construction, the original traditio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20Y02E60/60
Inventor 宋晓帆陈晨董平先白萍萍郭放薛文杰王辉齐桓若翟育新
Owner ECONOMIC TECH RES INST OF STATE GRID HENAN ELECTRIC POWER
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