Power System Stability Conditions in Fitting the Synchronous Generator with a Proportional Automatic Excitation Controller

Vestnik MEI ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 11-20
Author(s):  
Irina S. Zubkova ◽  
Keyword(s):  
Power System ◽  
Synchronous Generator ◽  
Power System Stability ◽  
System Stability ◽  
Stability Conditions

scholarly journals A Feasibility Solution of a Synchronous Generator for Optimisation of the System Power Stability using an Integrated Development Environment of Visual Basic-Excel

2020 ◽  
Vol 9 (3) ◽  
pp. 1261-1268
Keyword(s):  
Power Systems ◽  
Power System ◽  
Digital Simulation ◽  
Synchronous Generator ◽  
Power System Stability ◽  
System Stability ◽  
Development Environment ◽  
Runge Kutta ◽  
Mathematical Techniques ◽  
Computational Resources

Power systems are considered highly non-linear because the environment in which they operate keep changing and hence require iterative mathematical techniques to analyse them. Such changes have a resultant effect on the system`s stability. Fluctuations in parameters are experienced in loads across the networks of the system, generator`s outputs, network topology and other operating parameters. Practically, there is no analytical solution exists for solving the problem of stability. On the other hand, there are techniques available to obtain an acceptable approximate solution of such a problem, known as digital simulation. Runge-kutta method is one of these techniques which has been used broadly as it calculates every step in a sequence of sub-steps. The method relies on a complex mathematical modelling of the synchronous generator with the help of Park-Gorev`s transformation, for the sake of simplicity and intuitiveness the method is used to analyse and study the complex equations of the three-phase synchronous generator. Generally, the system is said to be stable if the opposing forces within it are balanced and at a perfect equilibrium. The aims of this research are to establish the effects of synchronous generator`s design and transient conditions upon power system stability with the help of Embedded Microsoft Excel Sheet based on Power System Stability Analysis (EMES-PSS), using the Runge-Kutta integration method. The study has proved that EMES-PSS can find the limits of Salient and Non-Salient machines stability when changing their essential parameters. The optimisation solutions of the power system stability problem can be achieved by using basic computational resources. The software can also be used on a number of modern tablets e.g., Apple`s tablets.

Impact of Wind Penetration Level on System Dynamic Performance

2013 ◽  
Vol 459 ◽  
pp. 189-194
Author(s):  
Min Tang ◽  
Shao Hui Zhang ◽  
Yan Fei Shen ◽  
Yong Li
Keyword(s):  
Power System ◽  
Dynamic Problem ◽  
Dynamic Performance ◽  
Synchronous Generator ◽  
Power System Stability ◽  
System Dynamic ◽  
System Stability ◽  
Synchronous Machines ◽  
Stability Performance ◽  
Stable Operating

Power system dynamic problem is the study which dealing with synchronism among interconnected machines. In any scenario all interconnected synchronous machines should remain in synchronism if the system is stable; i.e., they should all remain operating in parallel and at the same speed. Wind penetration level is affecting power system stability performance. This may result in oscillatory, but if the system is stable, these oscillations will be damped towards to stable operating condition. If the system is unstable, these oscillations will not be damped out and causes damage to synchronous generator. This dynamic performance can be improved by StatCom technology.

A Visual Simulation Environment for Teaching Power System Stability

2010 ◽  
Vol 47 (4) ◽  
pp. 357-374 ◽  
Author(s):  
Mohamed Shaaban
Keyword(s):  
Power System ◽  
Power Flow ◽  
Synchronous Generator ◽  
Power System Stability ◽  
System Stability ◽  
Visual Simulation ◽  
Test Cases ◽  
Computer Mediated ◽  
Operating Points ◽  
Change System

Computer-mediated teaching can be very effective in enhancing students' understanding of concepts and increasing their involvement in the classroom. This paper presents an interactive visual simulation tool to assist instructors in demonstrating power system stability phenomena. Power flow computations, used to initialise the simulation, are carried out using Matlab, whereas the simulation is implemented using Simulink. The Graphical User Interface (GUI), which controls the whole program and is constructed using C#, provides the capability to change system parameters/operating points interactively. To further the grasp of stability notions and reinforce the sense of seamless photorealistic interaction with the simulation, visual animation illustrating the synchronous generator along with virtual analogue meters, represented as ActiveX controls to portray inherent machine variables, are constructed. Several test cases, which cover various power system stability events, are described and analysed.

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