scholarly journals Problems and challenges of power-electronic-based power system stability: A case study of transient stability comparison

2020 ◽  
Vol 69 (8) ◽  
pp. 088907
Author(s):  
Zi-Qian Yang ◽  
Rui Ma ◽  
Shi-Jie Cheng ◽  
Meng Zhan
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Power System Stability ◽  
System Stability ◽  
Power Electronic

scholarly journals Design and analysis of transmission-level power system stability control

2021 ◽  
Author(s):  
Tu Phan
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Power System Stability ◽  
Stability Control ◽  
Stability Study ◽  
System Stability ◽  
Voltage Regulator ◽  
Automatic Voltage Regulator ◽  
Excitation Techniques ◽  
System Stabilizer

After the August 14, 2003 blackout, power system stability probelm has received a great deal of attention. This project is focused on the analysis of transient stability following disturbances. The project investigates three generator-excitation techniques for controlling the stability of power system. They are the manual control (constant excitation voltage), the automatic voltage regulator (AVR), and the automatic voltage regulator plus the power system stabilizer (PSS) that basically can be a led-leg compensator using a rotor speed deviation as an input feedback. This project carried out a computer simulation study of the power system stability for various disturbances conditions. The simulation results from the project have shown that AVR coupled PSS generator-excitation control can achieve the best power system stability, comparing to the manual or AVR control. A major contribution of this project is that a computer platform using MatLab/Simulink software was designed and can be used by other researchers for the power system stability study.

scholarly journals Analysis of Transient Stability for Multimachine Power System

2020 ◽  
pp. 88-93
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Power System Stability ◽  
Time Domain Analysis ◽  
Static Stability ◽  
System Stability ◽  
Reliable Operation ◽  
Machine System ◽  
Angle Stability ◽  
The Stability

The stability is an important guarantee for the safe and reliable operation of the power system, it is a decisive factor to limit the transmission distance and conveying capacity of the power system. Therefore, various measures must be taken to improve the system stability. The stability of the power system includes power angle stability, voltage stability and frequency stability. Among them, the power angle stability includes static stability and transient stability. Considering the importance of stability to the power system, the power system stability analysis methods and the measures to improve the power system stability is studied, so as to provide some useful reference for the safe and reliable operation of the power system. Generally, for multi-machine system transient stability becomes a major concern of wide power system due to load demand increasing day by day. In order to withstand disturbances with power quality issues requires evaluation of power system’s ability. There are many different kinds of methods for analysis of transient stability usually for multi-machine system. These methods include extended equal area criteria, time domain analysis and direct stability methods such as the transient energy function.

scholarly journals Power System Stability of a Small Sized Isolated Network Supplied by a Combined Wind-Pumped Storage Generation System: A Case Study in the Canary Islands

Energies ◽  
2012 ◽  
Vol 5 (7) ◽  
pp. 2351-2369 ◽  
Author(s):  
Julia Merino ◽  
Carlos Veganzones ◽  
Jose A. Sanchez ◽  
Sergio Martinez ◽  
Carlos A. Platero
Keyword(s):  
Power System ◽  
Canary Islands ◽  
Power System Stability ◽  
System Stability ◽  
Generation System ◽  
System A ◽  
Pumped Storage

scholarly journals Design and analysis of transmission-level power system stability control

2021 ◽  
Author(s):  
Tu Phan
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Power System Stability ◽  
Stability Control ◽  
Stability Study ◽  
System Stability ◽  
Voltage Regulator ◽  
Automatic Voltage Regulator ◽  
Excitation Techniques ◽  
System Stabilizer

After the August 14, 2003 blackout, power system stability probelm has received a great deal of attention. This project is focused on the analysis of transient stability following disturbances. The project investigates three generator-excitation techniques for controlling the stability of power system. They are the manual control (constant excitation voltage), the automatic voltage regulator (AVR), and the automatic voltage regulator plus the power system stabilizer (PSS) that basically can be a led-leg compensator using a rotor speed deviation as an input feedback. This project carried out a computer simulation study of the power system stability for various disturbances conditions. The simulation results from the project have shown that AVR coupled PSS generator-excitation control can achieve the best power system stability, comparing to the manual or AVR control. A major contribution of this project is that a computer platform using MatLab/Simulink software was designed and can be used by other researchers for the power system stability study.

scholarly journals Power System Stability Study on Multi Machine Systems having DFIG Based Wind Generation System

2020 ◽  
Vol 6 (3) ◽  
pp. 27-30
Author(s):  
Pramod Kumar Mehar ◽  
Mrs. Madhu Upadhyay
Keyword(s):  
Steady State ◽  
Power Systems ◽  
Power System ◽  
Power Plants ◽  
Transient Stability ◽  
Power System Stability ◽  
Stability Study ◽  
System Stability ◽  
Synchronous Generators ◽  
The Impact

Power system stability is related to principles of rotational motion and the swing equation governing the electromechanical dynamic behavior. In the special case of two finite machines the equal area criterion of stability can be used to calculate the critical clearing angle on the power system, it is necessary to maintain synchronism, otherwise a standard of service to the consumers will not be achieved. With the increasing penetration of doubly fed induction generators (DFIGs), the impact of the DFIG on transient stability attracts great attention. Transient stability is largely dominated by generator types in the power system, and the dynamic characteristics of DFIG wind turbines are different from that of the synchronous generators in the conventional power plants. The analysis of the transient stability on DFIG integrated power systems has become a very important issue. This paper is a review of three types of stability condition. The first type of stability, steady state stability explains the maximum steady state power and the power angle diagram. There are several methods to improve system stability in which some methods are explained.

Research on Measures to Improve Stability of the Power System

2015 ◽  
Vol 742 ◽  
pp. 648-652 ◽  
Author(s):  
Xiu Feng Shi ◽  
Shi Guang Mu
Keyword(s):  
Power System ◽  
Social Development ◽  
Transient Stability ◽  
Power System Stability ◽  
Static Stability ◽  
System Stability ◽  
The Social ◽  
Technical Measures ◽  
Improve Stability

This paper first states the importance of power system stability and the classification and characteristics of power system stability. Then according to the static stability and transient stability of power system, this paper introduces the technical measures to improve the two kinds of stability, and analyzes the corresponding effect, and demonstrates the technical and economical problems needing attention when taking all kinds of measures. The study on the power system stability in all situations has great significance to the social development.

scholarly journals Study of power system stability: Matlab program processing data from Zahrani power plant (Beirut, Lebanon)

2019 ◽  
Vol 124 ◽  
pp. 05011
Author(s):  
Fouad Alhajj Hassan ◽  
Alexander Sidorov
Keyword(s):  
Power Systems ◽  
Power System ◽  
Transient Stability ◽  
Power System Stability ◽  
System Stability ◽  
Main Attention ◽  
Matlab Program ◽  
Processing Data ◽  
One Machine ◽  
Great Damage

Stability is of great importance in power systems; instability can cause fluctuations in many parameters of a power system. Since the purpose is to keep feeding the load when a fault or disturbance of overload occurs, the main attention will be focused on over-voltage and frequency because they might make a great damage and shutdown the system. In this study, calculations were performed for one machine connected to infinite bus, considering steady state and transient stability using Matlab to achieve a stable system.

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