Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-proportion distributed photovoltaic grid-connected absorption capability analysis method

A distributed photovoltaic and absorptive capacity technology, applied in the field of distribution network, can solve problems such as inaccurate calculation methods, and achieve the effects of increasing population diversity, increasing mutation probability, and increasing network loss

Pending Publication Date: 2021-06-18
HEBEI UNIV OF TECH +2
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method adds the chaotic disturbance formula to the chaotic genetic algorithm, increases the diversity of the new generation of individuals according to the artificial degradation factor and the chaotic disturbance factor, and adds the immigration operator to increase the diversity of the population, effectively solving the problem of falling into the local optimal solution; Then the improved chaotic genetic algorithm is applied to the new field of distributed photovoltaic consumption in distribution network
The present invention can solve the problem that the existing calculation method cannot be accurate and quickly calculate the maximum capacity of the distributed photovoltaic power source that is allowed to be connected to the distribution network

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
  • High-proportion distributed photovoltaic grid-connected absorption capability analysis method
  • High-proportion distributed photovoltaic grid-connected absorption capability analysis method
  • High-proportion distributed photovoltaic grid-connected absorption capability analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0158] by image 3 The shown ieee33 node power distribution system is an embodiment of the present invention. Among them, node 1 is the power point of the distribution network system, set as a balanced node, the voltage value is 1.04, the node voltage range is 0.95-1.05 (pu), the allowable value of voltage fluctuation is 3%, and the current limit of the line is 250A, the upper limit of the photovoltaic capacity of each node is 1MW, and the maximum short-circuit current value is selected according to the specified value in the "Technical Guidelines for Typical Design of 10k V Power Distribution Engineering" formulated by the State Grid Corporation of China: the maximum three-phase short-circuit current cannot exceed 20kA. Assume that all nodes in the test system can access photovoltaic power.

[0159] First, 300 sets of photovoltaic active power output arrays are formed through chaotic initialization, and then the generated photovoltaic active power output arrays are selected,...

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 relates to a high-proportion distributed photovoltaic grid-connected absorption capability analysis method. According to the method, a chaos disturbance formula is added to a chaos genetic algorithm, the diversity of a new generation of individuals is increased through an artificial degradation factor and a chaos disturbance factor, an immigrant operator is added, the population diversity is increased, and the problem of falling into a local optimal solution is effectively solved; and then the improved chaos genetic algorithm is applied to the new field of distributed photovoltaic consumption of the power distribution network. According to the method, the problem that the maximum capacity of the distributed photovoltaic power supply allowed to be accessed by the power distribution network cannot be accurately and quickly calculated by an existing calculation method can be solved.

Description

technical field [0001] The invention relates to the technical field of power distribution network, in particular to a method for analyzing high-proportion distributed photovoltaic grid-connected accommodation capacity. Background technique [0002] Nowadays, fossil energy is decreasing day by day, the global environment is deteriorating day by day, and photovoltaic power generation has been widely developed and utilized. However, the output of distributed photovoltaic power supply is intermittent and fluctuating, which may affect the power quality of distribution network. Therefore, in order to reduce the impact, it is necessary to evaluate the distributed photovoltaic capacity of the distribution network in advance. [0003] With the development of science and technology, people have higher and higher requirements for the calculation of the distribution network's distributed photovoltaic consumption capacity. In the patent application publication number CN 111799838 A for d...

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): H02J3/38H02J3/46H02J3/06G06N3/12G06N7/08
CPCH02J3/381H02J3/466H02J3/06G06N3/126G06N7/08H02J2203/10H02J2203/20H02J2300/24H02J2300/40Y04S10/50Y02E10/56
Inventor 李练兵张凯宁范辉梁纪峰李佳祺李东颖周文李铁成罗蓬冯慧波
Owner HEBEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com