By Zlatan Stojkovic
This textbooks demonstrates the applying of software program instruments in fixing a sequence of difficulties from the sphere of designing energy method buildings and structures. It comprises 4 chapters:
The first bankruptcy leads the reader via all of the levels priceless within the approaches of desktop aided modeling and simulation. It courses during the complicated difficulties proposing at the foundation of 11 unique examples.
The moment bankruptcy provides software of software program instruments in energy approach calculations of strength platforms apparatus layout. a number of layout instance calculations are performed utilizing engineering criteria like MATLAB, EMTP/ATP, Excel & entry, AutoCAD and Simulink.
The 3rd chapters specializes in the graphical documentation utilizing a suite of software program instruments (AutoCAD, EPLAN, SIMARIS SIVACON, SIMARIS layout) which permit the total automation of the improvement of graphical documentation of an influence platforms.
In the fourth bankruptcy, the appliance of software program instruments within the venture administration in strength structures is mentioned. the following, the emphasis is wear the traditional software program MS Excel and MS Project.
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Extra info for Computer- Aided Design in Power Engineering: Application of Software Tools
This, among other things, means that before beginning development of the model, it is necessary to adopt certain standards and procedures for nomenclature and structures. On the example of the grounding grid, it is necessary for the team to come to an agreement on the following questions: – Is the model based on frequency independent parameters or frequency dependent parameters? – What kind of grounding grid structure should the developed model represent? – Should nonlinear eﬀects like ionization be encompassed?
Writing the program is carried out in the typical way. Selecting the option File>New>M-ﬁle opens the MATLAB text editor through which the m-ﬁle can be created. This ﬁle can also be created in other text editors. 16. Fig. m The following provides an explanation of the input ﬁle. The command in the ﬁrst line indicates a function subprogram, while the des- 66 1. Computer-aided modeling and simulation ignation yprime represents the derivative dy/dt, where t is an independent variable and y is a dependent variable (in this case y represents the voltage vector of the nodes and the current vector of the inductive branches).
Methodology of computer-aided modeling and simulation 43 – Under which conditions is the displayed mathematical model valid, meaning where is the boundary of validity of the proposed model? – How far outside of the boundary of validity is the error in calculation for using the proposed mathematical model. An illustration of this process is provided in the following example. 4. 1 relate to its inability to encompass the inﬂuence of soil ionization on the impulse characteristics of the grounding grid.