MODELLING AND SIMULATION OF A THREE-PHASE FLUIDIZED SYSTEM APPLIED TO ATTACHED-GROWTH NITRIFICATION OF WASTEWATER

2002 ◽  
Vol 1 (4) ◽  
pp. 517-532
Author(s):  
Maria Gavrilescu ◽  
Florina Ungureanu ◽  
Brindusa Robu
Keyword(s):  
Modelling And Simulation ◽  
Attached Growth ◽  
Three Phase ◽  
Fluidized System

scholarly journals Modeling and Simulation of Fault Ride Through Performance of HPR1000 NPP in the UK Grid

2021 ◽  
Vol 2087 (1) ◽  
pp. 012071
Author(s):  
Qingliang Zhang ◽  
Hui Sun ◽  
Changchun Zhai ◽  
Xiaowei Chen
Keyword(s):  
Modeling And Simulation ◽  
Modelling And Simulation ◽  
Residual Voltage ◽  
Ground Fault ◽  
Fault Ride Through ◽  
Three Phase ◽  
The Uk ◽  
Modelling Process

Abstract This study focuses on the fault ride through capability of HPR1000 NPP in the UK grid and presents a Simulink-based modelling and simulation of the demonstration. The paper firstly introduces the fault ride through requirements of the UK grid, then describes the modelling process and analyses the simplified part accordingly, and finally analyses a three-phase ground fault with a duration of 140ms and a three-phase ground fault with a residual voltage of 85% and a duration of 180 seconds. The results show that the fluctuations of the plant under various fault ride through scenarios meet the requirements of the UK grid indicating the plant has fault ride through capability in the UK grid.

Modelling and Simulation of the Three-Phase Induction Motor Using Simulink

1999 ◽  
Vol 36 (2) ◽  
pp. 163-172 ◽  
Author(s):  
K. L. Shi ◽  
T. F. Chan ◽  
Y. K. Wong ◽  
S. L. Ho
Keyword(s):  
Induction Motor ◽  
Modelling And Simulation ◽  
Three Phase

Mathematical modeling of mass transfer in a three-phase fluidized system

2009 ◽  
Vol 43 (5) ◽  
pp. 690-697 ◽  
Author(s):  
V. P. Mironov ◽  
E. V. Mironov ◽  
V. N. Blinichev
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Three Phase ◽  
Fluidized System

scholarly journals Modelling and Simulation of Mho Type Distance Relay for High Voltage Transmission Line Protection Using MATLAB Software

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Win Win Tun ◽  
Ohn Zin Lin ◽  
Han Su Yin
Keyword(s):  
Transmission Line ◽  
Transmission Lines ◽  
Modelling And Simulation ◽  
Fault Line ◽  
Distance Relay ◽  
Double Line ◽  
Ground Fault ◽  
Three Phase ◽  
Distance Relays ◽  
Transmission Line Protection

Transmission lines are an important part of a power system. Transmission lines have high power transmission capacity and they are prone to faults of larger magnitudes. Various faults occur in transmission lines. Therefore, protection relays are necessary to protect transmission lines. The purpose of protection system is to interrupt the faulty section from the healthy section because the fault currents may damage the electrical equipments. One of the protection relays is distance relay and it is mainly used in transmission line. Sometimes these relay are used for backup protection. Distance relays for determining the impedance need the voltage and current. Transmission lines are typically protected by distance protection relay. Distance relays are considered of high speed class and can provide transmission lines. Nowadays, numerical distance relays have been used instead of using electromechanical and static distance relays. The proposed model was verified under different tests such as single line to ground (L-G) fault, double line to ground (L-L-G) fault, line to line (L-L) fault and three phase (L-L-L) fault. SimPower System was used for modelling and simulation of distance relay, transmission lines and faults. The simulation results were obtained from MATLAB software shows the feasibility of analysis of transmission line protection with mho type distance relay for single line to ground fault, double line to ground fault, line to line fault and three phase fault at different location of transmission lines. The difficulties understanding on operation of distance relay can be cleared by using MATLAB/SIMULINK software.  

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