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

Cable connector simulation model used in PSCAD for calculating reclosing overvoltage of power distribution network

A technology of cable joints and simulation models, applied in geometric CAD, design optimization/simulation, calculation, etc., can solve problems such as neglect, inaccurate calculation results, and failure to consider different wave impedances

Inactive Publication Date: 2018-02-27
STATE GRID CORP OF CHINA +2
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present in this patented technology allows for accurate simulations on cables by utilizing an improved method called pi-typed circuit principles (PC). This approach involves creating models based on specific frequencies or other characteristics from certain parts of the PC code program. These models are then used to simulate different types of connections between cables without relying solely upon linear relationships like wires.

Problems solved by technology

This patented describes how people use Power System Computing Programming tools for analyzing voltage waves caused by faulty connections between cables or other components within an electric system's transmission pathway. However, current simulations only consider differences at specific points along the route where there may be high voltages due to imperfections such as insulation damage or poor wiring techniques that can cause partial discharges. These errors lead to changes in the calculated values when certain parts of the circuit have higher than usual levels of energy consumption compared with normal operation conditions.

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
  • Cable connector simulation model used in PSCAD for calculating reclosing overvoltage of power distribution network
  • Cable connector simulation model used in PSCAD for calculating reclosing overvoltage of power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] see figure 1 and figure 2 As shown, the present invention is a cable joint simulation model for calculating distribution network reclosing overvoltage in PSCAD, including cable intermediate joint resistance R, cable intermediate joint inductance L, and capacitance C between cable joint core and shielding layer .

[0020] Port 1 is connected to one end of the cable intermediate joint resistance R, the other end of the cable intermediate joint resistance R is connected to one end of the cable intermediate joint inductance L, and the other end of the cable intermediate joint inductance L is connected to port 3; the cable joint core and the shielding layer The capacitor C is divided into two equal parts: the first capacitor C1 and the second capacitor C2, the capacity of the first capacitor C1 and the second capacitor C2 are both C / 2; one end of the first capacitor C1 is connected to one end of the cable intermediate joint resistor R, One end of the second capacitor C2 i...

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 discloses a cable connector simulation model used in PSCAD for calculating the reclosing overvoltage of a power distribution network. The cable connector simulation model used in the PSCAD for calculating the reclosing overvoltage of the power distribution network comprises a cable middle connector resistor R, a cable middle connector inductor L and a capacitor C between a cable connector core and a shielding layer; a first port is connected with one end of the cable middle connector resistor R, the other end of the cable middle connector resistor R is connected with one end of the cable middle connector inductor L, and the other end of the cable middle connector inductor L is connected with a third port; the capacitor C between the cable connector core and the shielding layer is divided into two parts of a first capacitor C1 and a second capacitor C2; one end of the first capacitor C1 is connected with one end of the cable middle connector resistor R, and one end of thesecond capacitor C2 is connected with the other end of the cable middle connector inductor L; the other end of the first capacitor C1, the other end of the second capacitor C2, a second port and a fourth port are connected together. Due to the fact that a wave process of the overvoltage on a cable middle connector is taken into consideration, by adopting the model to calculate the overvoltage amplitude, a result can be more precise.

Description

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

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
Owner STATE GRID CORP OF CHINA
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