Transient stability limit issues at three-phase short-circuit in parallel running of both a superconducting generator and a conventional one

1995 ◽  
Vol 115 (6) ◽  
pp. 62-70
Author(s):  
Tanzo Nitta ◽  
Yasuyuki Shirai ◽  
Toshikazu Kawauchi ◽  
Takao Okada ◽  
Yoshihiro Ogawa
Keyword(s):  
Transient Stability ◽  
Short Circuit ◽  
Stability Limit ◽  
Three Phase

scholarly journals Some Considerations on Transient Stability Limit at Three-Phase Short-Circuit in Parallel Running of a Superconducting Generator and a Conventional One

1994 ◽  
Vol 114 (11) ◽  
pp. 1135-1141
Author(s):  
Tanzo Nitta ◽  
Yasuyuki Shirai ◽  
Yoshihiro Ogawa ◽  
Toshikazu Kawauchi ◽  
Takao Okada
Keyword(s):  
Transient Stability ◽  
Short Circuit ◽  
Stability Limit ◽  
Three Phase

scholarly journals Application of Anfis-Pid Controller for Statcom to Enhance Power Quality in Power System Connected Wind Energy System

2018 ◽  
Vol 7 (4.4) ◽  
pp. 35
Author(s):  
Huu Vinh, Nguyen ◽  
Hung Nguyen ◽  
Kim Hung Le
Keyword(s):  
Power System ◽  
Power Quality ◽  
Pid Controller ◽  
Wind Farm ◽  
Transient Stability ◽  
Short Circuit ◽  
Nonlinear Modeling ◽  
Energy System ◽  
Transient Time ◽  
Three Phase

In this paper, a proposed ANFIS-PID controller for the STATCOM to improve transient stability of the power system including DFIG based wind farm based on their nonlinear modeling is presented. The comparative simulation results in two cases of no controller and the ANFIS-PID controller for the STATCOM when occurs a three-phase short-circuit fault in the studied multi-machine power system are shown. It is shown the effectiveness of the proposed ANFIS-PID controller and applicability to a practical power system for enhancing power quality in transient time under large disturbance.  

Effect of Wind Farm on Transient and Small-Signal Stability Based on BPA

2013 ◽  
Vol 860-863 ◽  
pp. 309-313
Author(s):  
Xiao Yan Bian ◽  
Li Ning Yang ◽  
Xin Xin Huang ◽  
Yang Fu
Keyword(s):  
Power System ◽  
Large Scale ◽  
Wind Farm ◽  
Transient Stability ◽  
Short Circuit ◽  
System Stability ◽  
Small Signal ◽  
Small Signal Stability ◽  
Signal Stability ◽  
Three Phase

Large scale wind farm output variation always deteriorates the system stability. To study this problem, this paper builds the model of power system with the integration of large-scale wind farm based on BPA. The simulation results show that large oscillations of voltage and rotor angle of system will happen, when three-phase short circuit fault occurs on the main line for transmitting wind power. With wind farm output decreasing, the transient stability and small-signal stability of power system will be improved.

Advance Protection for Three Phase Induction Motor using Microcontroller Atmega32

2018 ◽  
Vol 8 (1) ◽  
pp. 172
Author(s):  
Karan S Belsare ◽  
Gajanan D Patil
Keyword(s):  
Induction Motor ◽  
Low Cost ◽  
Short Circuit ◽  
Cost Factor ◽  
Protection Scheme ◽  
Three Phase ◽  
The Cost

A low cost and reliable protection scheme has been designed for a three phase induction motor against unbalance voltages, under voltage, over voltage, short circuit and overheating protection. Taking the cost factor into consideration the design has been proposed using microcontroller Atmega32, MOSFETs, relays, small CTs and PTs. However the sensitivity of the protection scheme has been not compromised. The design has been tested online in the laboratory for small motors and the same can be implemented for larger motors by replacing the i-v converters and relays of suitable ratings.

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