Modeling method for photovoltaic power generation system model

A technology of photovoltaic power generation system and modeling method, applied in the direction of photovoltaic power generation, sustainable building, climate sustainability, etc., can solve the problem of too detailed electromechanical transient analysis of power system

Active Publication Date: 2013-05-29
STATE GRID CORP OF CHINA +2
View PDF6 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, some photovoltaic power generation system models have established detailed models of inverters containing photovoltaic cells and power elect

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modeling method for photovoltaic power generation system model
  • Modeling method for photovoltaic power generation system model
  • Modeling method for photovoltaic power generation system model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0069] The invention discloses a photovoltaic power generation system modeling method suitable for the transient calculation of the photovoltaic power grid. To meet the needs of transient calculations, a modeling method for photovoltaic power generation systems is proposed. This modeling method calculates the initial value of irradiance for the transient calculation of the photovoltaic power generation system based on the results of the power flow calculation; integrates the DC side and the AC side, the power part and the control part of the photovoltaic power generation It is required to properly simplify the model of photovoltaic power generation system, establish a transient model of photovoltaic power generation system suitable for the analysis and calculation of photovoltaic grid-connected safety and stability, and provide basic model platform support fo...

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

No PUM Login to view more

Abstract

The invention provides a modeling method for a photovoltaic power generation system model. The method includes the steps: selecting and calculating a photovoltaic power generation system calculation base, and converting a power grid load flow calculation unit value into a photovoltaic power generation system calculation unit value; calculating a transient initial value of a photovoltaic power generation system; building a photovoltaic square array model; and building a grid-connected photovoltaic inverter model. The modeling method is used for modeling a positive sequence component of the photovoltaic power generation system and can be extended into a modeling method for modeling the positive sequence component and a negative sequence component, the model is applied to transient, stable and analytical calculation of a photovoltaic access power grid, and basic model platform support is provided for planning and design of the photovoltaic access power grid and research of the interaction relationship between the photovoltaic access power grid and a power grid.

Description

technical field [0001] The invention belongs to the field of power system analysis and calculation, and in particular relates to a modeling method of a photovoltaic power generation system model used for transient calculation of photovoltaic access to a power grid. Background technique [0002] Photovoltaic power generation has the characteristics of intermittent, fluctuating, and random. Large-scale photovoltaic access brings new challenges to power grid security and stability analysis, dispatch control, system voltage regulation, and security protection configuration. Study the modeling method of grid-connected photovoltaic system, establish a grid-connected photovoltaic model whose accuracy and reliability can meet the safety and stability analysis of photovoltaic grid-connected operation, and provide a basic model platform support for the planning and design of photovoltaic grid-connected grid and its interaction with the grid , is of great significance. [0003] The el...

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
no application Login to view more
IPC IPC(8): H02J3/38
CPCY02E10/563Y02B10/14Y02B10/10Y02E10/56
Inventor 曲立楠范越张振宁牛拴保柯贤波韩华玲施涛陈宁朱凌志王吉利程林霍超
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap