# Power Systems Simulation

How do I simulate a nonlinear model of a single machine infinite bus system in matlab?
Hosein Karimi · Power and Water University of Technology
کامل انجام داده.Yao NAN YU توی کتاب دینامیک سیستم های قدرت
Can someone please provide the exact definition of a Smart Grid?
Can you give a definition for smart grid, and a clear idea about it?
Vasuki Soni · ABB Global industries and services limited
A Smart grid is an idea which includes the conception of bidirectional flow of data (information) as well as the power also. This would lead to the higher flexibility of the whole grid to be monitored controlled and protected. This system allows for monitoring, analysis, control and communication within the supply chain to help improve efficiency, reduce the energy consumption and cost, and maximize the transparency and reliability of the energy supply chain. Smart net meters are new technology that is to be included unlike the conventional grid.
What's your opinion about necessarity and the way of measuring of distorsion power (D) ?
Is there reason and shoud the energy of distorsion power (due to higher harmonics) be measured and how and whom should be measured? What's the level of distorsion power which should be marginal for measure? Which technique should be used for that measuring? I mean on consumers in low voltage network?
Ezequiel Lima · Universidade Federal de Uberlândia (UFU)
Dear Ivan, First of all, we should think about the definition of distortion power. Here a thesis very interesting about this subject : http://theses.ucalgary.ca/handle/11023/1037 Best Regards
What is the optimal design for distances of barriers and oil in power transformers?
Seyed Hamid Rafiei · University of Zanjan
Optimized Design of Transformer by Genetic Algorithm
Any suggestions starting research on the economic dispatch of thermal power plants using ensembled artificial neural networks?
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I suggest referring to University of California, Irvine (UCI) machine learning repository, to find a good data set and corresponding research methods related to thermal power plants
How can I see STATCOM outputs?
In this picture, where can I find the signals & scope block in MATlab simulink? I looking for this block for depict of STATCOM outputs.
Iiranican Iiranican · Islamic Azad University
help of matlab software can help u to an Understand
Which is the best simulation tool for PowerPlant?
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Muhammad Ahsan · National University of Science and Technology
I think you should use DynSim for such simulations requiring real time parameters and for analysis of mechanical systems and networked plants i use ANSYS. It is the best at giving the thermal analysis.
Which kind of transformer can I use to inject reactive power to an electrical grid?
If I want to inject reactive power to electrical grid by a converter, I need to use an injection transformer. To simulate this on Matlab simulink which kind of transformer can I use? If I want use that converter in symmetrical and asymmetrical faults, I should use three one phase transformer or one three phase transformer ?
Hassan Mohammadpour · University of Tabriz
Dear Bhupendra Desai Thanks a lot for your help. Best Regards
What issue do you think is better for my thesis topic?
I want to choose my dissertation topic but I do not know which of the following issues. What issue do you think is better? What do you think about the issue of if better information can be obtained? 1.Extract the dynamic characteristics of distribution networks 2.Effects of harmonics upstream Brshbk·h distribution network 3.The effects of harmonics on distribution systems for industrial customers 4.Prediction Control of reactive power SVC on Balancing loads on asymmetric of distribution networks
Sophie Archer · University of Birmingham
How can I see Simulink output vector of STATCOM in matlab simulink?
I want use a STATCOM in Transmission line but I can't see the output of STATCOM in simulink. I would like to know how can I create an output block for STATCOM.
Fathalla Eldali · Colorado State University
you want to see the STATCOM output right , you can use scope or to workspace block as array and name it, then you plot it in matlab using plot command. if you would , you can attach the file here and I will try to play with it and see what I could do
How can I do a nonlinear simulation of single machine infinite bus system in matlab?
I want to simulate nonlinear state space equations, I need it for stability analysis.
Patrizio Manganiello · Second University of Naples
Does anyone here consider Saddle Node Bifurcation as one of most significant static factors for voltage stability problems in power system?
Saddle node bifurcation is recognized as one of the most significant static factors for voltage stability problems in power system. According to Saddle node bifurcation [14]: g(y, A) = 0 Vyg(y, A)V = 0 Iv l =1
Hector Pulgar · Universidad Técnica Federico Santa María
When only network equations are considered, the appearance of a saddle-node bifurcation point reveals that power flow equations reach a singularity, i.e., power flow jacobian matrix is singular; the matrix has one zero eigenvalue---the physical meaning is that the network cannot transmit more power. In addition, the voltage drop inscreases considerably at some buses---theoretically, there exist at least one bus with a derivative dV/dP that tends to infinity. When dynamic models are included (voltage controllers, governors, among others), then a saddle-node bifurcation (SNB) point probably is not the most important one. Based on my experience, a Hopf bifurcation point would appear before a SNB point. The instability would be related either to voltage controllers or governors of sychronous machines.
How can I perform a dynamic simulation of BLDC motors in matlab simulink?
Rajin Linus · Indian Institute of Information Technology, Design & Manufacturing, Kancheepuram, India
Dear Mehdi I think first u need to model the PMSM using the dynamic equation right. You are asking how to derive the equation?
Can any one help me with simulation of a multi-machine power system in MATLAB? 4,9,10,16,..
Multi machine power system stability
Ulaş Kılıç · Celal Bayar Üniversitesi
you should find the hadi saadat programme in "Power System Analysis Third Edition"
In grounding grid design; why are the vertical rods placed at the periphery and the horizontal and vertical conductors near each other?
I am designing a ground grid for AIS and according to IEEE 80 the space between conductor should be between 3 and 7 meters. I need some suggestions as to why the conductors are placed at a distance of 3 to 7 meters and why the vertical rods are suggested to be placed at the periphery.
Ivica Paunovic · Electric Power Industry of Serbia
I am not sure that I understand your question enough, but maybe I still can help. Peripheral parts of ground electrode emanate more current to the earth per unit of length. This is reason for adding peripheral vertical rods and (sometimes) peripheral horizontal conductors. In that way vertical rods are the most effective and their impact on lowering grounding resistance is greater. Horizontal conductors decrease potential gradients at the soil surface, i.e. they decrease step and mesh (touch) voltages at the soil surface. If distance between horizontal conductors is lower, than step and mesh (touch) voltage (at the soil surface, between the conductors) is lower.
How to simulate DFIG in digsilent?
DFIG in digsilent simulation.
Srikant Achary · Indian Institute of Technology Delhi
Hello Mehdi, its quite simle in Digsilent to simulate an DFIG model. You have to just pick up the required rated DFIG model in the general templates (find this at the elements on right hand pane ) and use in your model..
How to simulate DFIG in digsilent?
Simulation in digsilent
Mehdi Hedayatpoor · University of Yazd
hi.if you have use this topic for your thesise, I attach file in this case for you.please study this file. have a good time.
How to set the transfer function parameters for two stage tandem compounded steam turbine?
Steam turbine transfer function modelling.
Gabriel Negreanu · Polytechnic University of Bucharest
Please describe more the technical system (steam turbine) and what you want to research.
What are the research areas of integration of renewable energy sources with grid?
What are the research areas available for improving the power quality issues with the help of renewable energy source penetration into grid?
K.A. Naik · Indian Institute of Technology Roorkee
hi akhilesh ..integration of renewable energy resources is a good topic the main areas of power quality improvement is when the sources generate the energy that can be converted in to AC power using some power converters.these converters can create power quality problems..u can look in this.one more point is if wind plant is offshore and far distance from the load,we should transmit the power with help of HVDC..so can look in this interms of power quality.to improve the power quality 1) go with D-STATCOM technology 2) go with PV-STATCOM technology to improve voltage profile in bettere way
• Mehdi Hedayatpoor asked a question:
How to extract the dynamic characteristics of distribution networks?
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Simulation of ANN based Hybrid Active Power Filter?
How can I simulate an ANN based Hybrid Active Power Filter with Matlab? Can anyone here help me in this subject?
Yasir Amir Niazi · FAST-NU Karachi
firstly you need ANN algorithm or a model such as in Simulink. I have a neural network model that might be usefull for you!! engr.yasir.amir@gmail.com
Does anyone have experience with solving errors in power flow analysis for kondur 4 machine two area system?
I want to do power flow analysis for two area 4 machine ''Kondur ''system using system data in this book page 813 using'' HADI SAADAT'' package software for power flow analysis but there is no convergence in the result although I increase the number of iterations.
K.A. Naik · Indian Institute of Technology Roorkee
The same analysis u can do with PSAT software..which is supported by MATLAB..what the model u looking for it already been designed in PSAT..it is a free software and the exactly results u will get..
Can anybody help me with a simulation of a 16-machine power system in Matlab?
I need it for stability analysis.
Abdollah Younesi · Institute of Electrical and Electronics Engineers
hello, yes, my thesis is about stability analysis with RL, and I want to apply RL to 16-machine power system, please help me if it is possible for you, thanks,
In PSIM, the solar module (physical & functional) has a port on its top, what is its function?
What value should be given to it while simulating PV Inverter? Simulation of PV inverter in PSIM.
Shahnawaz Farhan Khahro · Beijing Institute Of Technology
Dear Sir R. Giral, I will thankful if you please send me any manual or document regarding this port of solar module
What are the negative environmental impacts of solar energy?
I know solar energy has a lot positive impact, however there are also negative ones.
Marco Antonelli · Università di Pisa
I think that some evaluations have to be made about the whole lifetime cost and CO2 imbalance (carbon footprint).
Can anyone guide suggest some papers where I can find information about the model of a Li-ion battery its SOC and SOH (State of Charge/Health)?
I've been doing this examination to see if Li-ion battery fits in a Electric Vehicle in a smart grid environment and I wanted a model to simulate my its potential.
Badr Bougattaya · Ecole Centrale Paris
Ok great, thank you I'll consider the papers you recommended.
Can anyone help me about FORTRAN program of saturable transformer model in ATP(EMTP)?
ATP (FORTRAN programing language)
Matthias Wilhelm · Technische Universität Kaiserslautern
Have you tried the mailing list of EMTP? http://www.emtp.org/maillist.html On such a specialized and obscure topic there are probably only a handful of people in the world who can actually help you, you need to be really lucky to find one here accidentally ...