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

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

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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.

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