Check patentability & draft patents in minutes with Patsnap Eureka AI!

Power distribution network voltage control method and system

A voltage control method and technology of distribution network, applied in the direction of AC network voltage adjustment, etc., can solve the problems of reduced power supply reliability, increased voltage level, increased short-circuit current, etc., achieving the effect of simple and feasible operation and clear strategy mechanism

Inactive Publication Date: 2019-04-23
CHINA ELECTRIC POWER RES INST +4
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned problems of increased voltage level, increased short-circuit current, reduced reliability of power supply, and deteriorated power quality, the present invention provides a voltage control method for a distribution network, the method comprising:

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
  • Power distribution network voltage control method and system
  • Power distribution network voltage control method and system
  • Power distribution network voltage control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 1 The method steps shown are as follows:

[0065] Step 1: Based on the obtained parameters of the distribution network and the voltage regulation model of the new energy unit, the voltage drop of each section of the distribution network line is obtained;

[0066] Step 2: Based on the voltage drop of each section of the distribution network line, calculate the voltage drop of each node in the line under the injection of new energy active and reactive power;

[0067] Step 3: Construct a priority scheduling function based on the voltage drop of each node;

[0068] Step 4: Regulate the voltage of the node based on the priority scheduling function and the predetermined voltage demand value of the node.

[0069] Below in conjunction with specific embodiment, the present invention is further described and explained:

[0070] The explanation for step 1 is as follows:

[0071] Model the electrical and wiring of the distribution network;

[0072] Establish the...

Embodiment 2

[0104] The invention also relates to a distribution network voltage control system, comprising:

[0105] Acquisition module: used to obtain the voltage drop of each section of the distribution network line based on the obtained parameters of the distribution network and the voltage regulation model of the new energy unit;

[0106] Calculation module: used to obtain the voltage drop of each node in the line under the injection of new energy active and reactive power based on the voltage drop of each section of the distribution network line;

[0107] Building block: used to construct a priority scheduling function based on the voltage drop of each node;

[0108] Regulating module: used to regulate the voltage of the node based on the priority scheduling function and the predetermined voltage demand value of the node.

[0109] The obtaining module includes a voltage drop determination unit for each node;

[0110]The node voltage drop determination unit is used to calculate the ...

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 power distribution network voltage control method and system. The method comprises the steps of: obtaining voltage drops of all sections of a power distribution network circuit based on obtained power distribution network parameters and a new energy machine set voltage regulation model; obtaining voltage drops of all nodes in the circuit under active and reactive new energy injection based on the voltage drops of all sections of the power distribution network circuit; constructing a priority scheduling function based on the voltage drops of all the nodes; regulatingvoltages of the nodes based on the priority scheduling function and a previously-determined node voltage required value. According to the power distribution network voltage control method and system disclosed by the invention, voltage flexibilities of all the nodes in the circuit under the new energy injection based on the obtained power distribution network parameters and a previously-constructednew energy machine set voltage regulation model, so that the problems of increased voltage level, increased short circuit current, reduced power distribution reliability and deteriorative electric energy quality caused by accessing a high-permeability distributed photovoltaic power into power distribution network are solved.

Description

technical field [0001] The invention relates to the technical field of reactive power voltage control strategy of distribution network containing large-scale new energy, and proposes a distribution network voltage control method and system. Background technique [0002] Smart distribution network is one of the key links of smart grid. Generally, the power network of 110kV and below belongs to the power distribution network, and the distribution network is the part directly connected to the scattered users of the entire power system. The intelligent distribution network system is to use modern electronic technology, communication technology, computer and network technology to integrate the online and offline data of the distribution network, the data of the distribution network and the user data, the structure of the power grid and the geographic graphics to realize the normal operation of the distribution system. Intelligent monitoring, protection, control, power consumptio...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12
CPCH02J3/12
Inventor 李琰田新首迟永宁刘超李立生张林利王宾刘自发李瑞生马红伟
Owner CHINA ELECTRIC POWER RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com