Investigation of the use of electromagnetic transient models for transient stability simulation

2003 ◽  
Author(s):  
H.T. Su
Keyword(s):  
Transient Stability ◽  
Electromagnetic Transient ◽  
Transient Models

Cosimulation of Shifted-Frequency/Dynamic Phasor and Electromagnetic Transient Models of Hybrid LCC-MMC DC Grids on Integrated CPU–GPUs

2020 ◽  
Vol 67 (8) ◽  
pp. 6517-6530 ◽  
Author(s):  
Dewu Shu ◽  
Yingdong Wei ◽  
Venkata Dinavahi ◽  
Keyou Wang ◽  
Zheng Yan ◽  
...  
Keyword(s):  
Electromagnetic Transient ◽  
Dynamic Phasor ◽  
Transient Models

An Investigation of the Negative Resistance in Network Reduction and Electromagnetic Transient Modelling

2014 ◽  
Vol 1008-1009 ◽  
pp. 480-484
Author(s):  
Cheng Jun Xia ◽  
Guo Kai Liang ◽  
Hao Yu Huang
Keyword(s):  
Large Scale ◽  
Transient Stability ◽  
Gaussian Elimination ◽  
Negative Resistance ◽  
Transient Simulation ◽  
Electromagnetic Transients ◽  
Network Reduction ◽  
Forming Mechanism ◽  
Electromagnetic Transient ◽  
Electromagnetic Transient Simulation

It becomes common practice to reduce a large-scale power grid into a simplified one using transient stability simulator and have it modeled on electromagnetic transients programs. However, the procedure of network reduction may produce negative resistance, which may result in some problems in electromagnetic transient simulation. This paper firstly demonstrates that the negative resistance will probably lead to numerical instability in electromagnetic transient simulation. And then the forming mechanism of the negative resistance during network reduction using Gaussian Elimination is revealed. Several schemes for negative resistance elimination are presented at last.

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