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

scholarly journals Dynamic Phasor Modelling of LCC-HVDC System Based on a Practical Project

2021 ◽  
Vol 256 ◽  
pp. 01034
Author(s):  
Huan Li ◽  
Kang Qin
Keyword(s):  
Block Modeling ◽  
Electromagnetic Transient ◽  
Hvdc System ◽  
Modeling Process ◽  
Practical Project ◽  
Dc Line ◽  
Simulation Results ◽  
Dynamic Phasor

This paper presents a detailed dynamic phasor modeling process of a line-commutated converter-based HVDC (LCC-HVDC) system. Firstly, the dynamic phasor models of the single-ended LCC rectifier station, inverter station and the DC line are established, respectively. Secondly, LCC-HVDC is an AC-DC-AC system. The interfaces are explained to connect the converter stations with the DC line. Through block modeling, it is helpful to simplify the process and verify the accuracy of each block. Finally, based on a practical project, the model is compared with the electromagnetic-transient (EMT) simulation results in PSCAD/EMTDC to verify the accuracy of the dynamic phasor model.

Transient Models to Analyze the Influence of the Air Velocity and Ducts Diameter on the Performance of Earth-Air Heat Exchangers

2016 ◽  
Vol 43 (5-6) ◽  
pp. 503-520 ◽  
Author(s):  
R. S. Brum ◽  
J. V. A. Ramalho ◽  
Luiz Alberto O. Rocha ◽  
L. A. Isoldi ◽  
E. D. dos Santos
Keyword(s):  
Heat Exchangers ◽  
Air Velocity ◽  
Transient Models
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