mathematical modelling in electronics

Last Taught: Fall 2009, Spring 2007, Spring 2004, Spring 2001. Mathematical models are used in the natural sciences (such as physics, biology, earth science, chemistry) and engineering disciplines (such as computer science, electrical engineering), as well as in non-physical systems … Modelling Electronics (Divison of S & G Holding Group) DET2/3 features a graphic display for better data analysis, error detection capabilities, as well as a wide range of test frequencies to ensure noise protection. The company says DET2/3 offers improved accuracy and stability. The high-performance ground tester replaces DET2/2 that has been widely used in the industry for 25 years. Applied Mathematical Modelling focuses on research related to the mathematical modelling of engineering and environmental processes, manufacturing, and industrial systems. The floating admittance matrix (FAM) approach is an elegant method of mathematical modeling of electronic devices and circuits. Alessio Facen, Università degli studi di Parma, Matteo Tonelli Università degli studi di Parma, Andrea Boni, “A design-oriented mathematical model for DC/DC buck converters with PFM control’ DOI: 10.1109/ICECS.2008.4674888 December 2007. This has many advantages 1. In a linear mechanical type of systems, we have three variables: In a rotational mechanical type of systems we have three variables: Now let us consider the linear displacement mechanical system which is shown below- The presented work is a detailed modeling and simulation of the PV cell and module. From the diagram we can see that the, Apply only if you are sure. Now from the circuit diagram and with the help of KCL equation we write the expression for current in terms of flux, resistance, capacitor and inductor as, In our example we did not think about the thickness of the cardboard, or many other "real world" things. 2 Models are a representation of a particular thing, idea, or condition. We will derive analogies between mechanical and electrical system only which are most important in understanding the theory of control system. And also we have three parameters which are active and passive components: Now we are in condition to derive analogy between electrical and mechanical types of systems. In such equations we can find both the parameters, i.e.the quantities that cannot be manipulated, and the variables. The first three models can very much be integrated in teaching high school mathematics. Graph theory, matrix algebra and numerical analysis applied to computer solution of power system problems; mathematical models; algorithms and solution techniques for load flow and fault studies. Mathematical modeling allows designers to find the best switching frequency, best components, compare two sets of components and optimize the system for any conditions that the application requires while still in the design cycle and well in advance of any prototyping. When fully verified by lab test results, this is a powerful tool that enables the engineer to design the system that meets specifications in literally a couple of days instead of several weeks. In an electrical type of system we have three variables –. Force Voltage Analogy : In order to understand this type of analogy, let us consider a circuit which consists of series combination of resistor, inductor and capacitor. Any mathematical model must be fully reviewed and verified against thorough lab testing and comparing the lab results to the mathematical model predictions. Once the best four sets of components have been chosen, the next step is to find the optimum switching frequency that will result in the lowest losses and highest efficiency. 1 Models are abstractions of reality! Circuits consisting of these three elements are analysed by using Kirchhoff’s Voltage law and Current law. 2. Spring constant K is analogous to inverse of the inductor (L). On substituting the values of T1, T2 and T3 in the above equation and taking the Laplace transform we have the transfer function as, 2 and 3 clearly show that selection 4 is best and may be optimized further by selecting the best switching frequency. Correct work gives you full money+bonus. They were long term visiting scientists at the Neˇcas Center for Mathematical Modeling in the years 2007 and 2008, and A. Elbanhawy, “Mathematical Treatment for HS MOSFET Turn off”, PEDS December 2003. Models • Why spend much time talking about models? With basic mathematical models, researchers can begin to forecast the progression of diseases and understand the effect of interventions on disease spread. The purpose of the mathematical model is to be a simplified representation of reality, to mimic the relevant features of the system being analyzed. A.Kalirasu and S.S.Dash, “Modeling and Simulation of Closed Loop Controlled Buck Converter for Solar Installation”, International Journal of Computer and Electrical Engineering, Vol. Now let us describe the mechanical and electrical type of systems in detail. Rajvir Kaur, Navdeep Kaur, “Mathematical Modelling of Buck Converter”, International Journal on Recent and Innovation Trends in Computing and Communication, 2014. Mathematical models are often represented by equations of various types that must be solved with known mathematical methods. • Model is a mathematical representations of a system – Models allow simulating and analyzing the system – Models are never exact • Modeling depends on your goal – A single system may have many models Now comparing the above with that we have derived for the mechanical system we find that. 5 and 7, we examine the total losses of the four finalist sets that have a single controller but different MOSFETs and inductors. A voltage V is connected in series with these elements as shown in the circuit diagram. There are two types of analogies and they are written below: The model is not the same as the real thing. But maybe we need more accuracy, we might need to send hundreds of boxes every day, and the thickness of the cardboard matters. The new model of the ground tester has a large internal memory that allows quick calculation of resistivity and storage of more than a day’s worth of test results. Both Figs. The first step is to compile the best table of potentially suitable power-train components based on losses. Mathematical modeling allows designers to find the best switching frequency, best components, compare two sets of components and optimize the system for any conditions that the application requires while still in the design cycle and well in advance of any prototyping. Note that a mathematical model is not unique to a 3, No. This analogy is known as force voltage analogy. 116 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. Modelling Electronics 68 High Park Road Southport Merseyside PR9 7QL. Mathematical and Computer Modelling. Mathematical modeling approaches can be categorized into four broad approaches: Empirical models, simulation models, deterministic models, and stochastic models. Megger replaces its DET2/2 with the DET2/3 earth/ground resistance tester, which promises improved accuracy and stability. 3. In studying control systems the reader must be able to model dynamic systems in math-ematical terms and analyze their dynamic characteristics.A mathematical model of a dy-namic system is defined as a set of equations that represents the dynamics of the system accurately, or at least fairly well. Prerequisites: grad st & ElecEng 471. Now comparing the above with that we have derived for the mechanical system we find that-. It is implemented under MATLAB/Simulink environment; the most used software by researchers and engineers. Mathematics is a very precise language. We have shown here that once the full symbolic solution is calculated, we have an encapsulation of the system that allows instantaneous what-if scenarios, full visualization of any parameter in the system. Wrong work gives you no money. On the other hand, for the transient-response or frequency-response analysis of … These models are poised to be the springboard of new brain functional imaging technology that offers microscopic resolution of … Coefficient of friction (B) is analogous to resistance R and. This analogy is known as force current analogy. Hamed Mashinchi Mahery , Ebrahim Babaei, “Mathematical modeling of buck–boost dc–dc converter and investigation of converter elements on transient and steady state responses”, International Journal of Electrical Power & Energy Systems, 2013. For example, in optimal control problems, it is good to use state-space representations. These losses are due to: Selection of the best power-train components like MOSFETs and inductor for a given application is the most critical step in the design of a synchronous buck converter. 1, JANUARY 1997 A New Mathematical Model and Control of a Three-Phase AC–DC Voltage Source Converter Mathematical modeling is becoming an increasingly important subject as comput- ers expand our ability to translate mathematical equations and formulations into concrete conclusions concerning the world, both natural and artificial, that we live Here, we will only consider the losses in synchronous buck converters for investigations and lab verifications. Now from the circuit diagram and with the help of KVL equation we write the expression for voltage in terms of charge, resistance, capacitor and inductor as, Experiment 3: Mathematical Modelling Using SimScape Automatic Control Systems 2 Dr. Zaer Abo-Hammour Hydraulic building blocks that model fundamental hydraulic effects and can be combined to create more complex hydraulic components Pneumatic building blocks that model fundamental pneumatic effects based on the ideal gas law 1. What is a Mathematical Model? We have shown that a comprehensive mathematical model of synchronous buck converter using the power of modern symbolic equation set solution yield a unique and very in-depth understanding of the design, its limitations and where it shines with respect to the specifications allowing for fine tuning on the spot or even complete redesign to take care of any weak points. This equation is the mathematical modeling of a mechanical control system. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. The paper is in detail. Supporting two-, three- and four-pole ground resistance measurements, this tester is an excellent diagnostic tool for anyone performing ground testing, according to the company. Using mathematical software to fully model Synchronous Buck Converter (SBC) performance in symbolic form is a tool that is available right now. 1b. A very clear view of the performance of the system is emerging with deep understanding of all the losses under different conditions of current and switching frequency. Power Management, Chapter 3: Power Supplies-Make or Buy? The last will need a … 2, April, 2011. 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A voltage E is connected in parallel with these elements as shown in the circuit diagram. This is done using the loss equations in a simple loop to sift through the internal database of components and find the top 10 candidates each of high-side and low-side MOSFETs and inductors. Electrical4U is dedicated to the teaching and sharing of all things related to electrical and electronics engineering. From the mechanical system, we can write equation for torque (which is analogous to force) as torque as, In mathematical modelling, we translate those beliefs into the language of mathematics. Technologies; Power Electronics Systems; Power System Insight Using Mathematical Modeling. The team then used the data to develop the mathematical models used to estimate the level and spatial distribution of neural activity. Fourier analysis and Z-transforms are also subjects which are usually included in electrical engineering programs. Edited by Hangbae Chang, Jungduk Kim, Hosin “David” Lee, Yiming Li, Chun-Nan Chen, Yoshinari Kamakura, Todd McKenzie, … 3, Issue 7, July 2014. Enter your email below to receive FREE informative articles on Electrical & Electronics Engineering, In a rotational mechanical type of systems, SCADA System: What is it? Figure 4 is a 3D model of efficiency as a function of the switching frequency. Through mathematical modeling phenomena from real world are translated into a conceptual world. Entering the component sets’ parameters into the math model, power loss and efficiency predictions can be generated in seconds once the software is initialized. Process of developing a mathematical model is termed mathematical modeling 80 % of control system to its essential.. About the thickness of the process involved December 2003, Spring 2007, Spring 2001 for HS Turn... … the model is first drafted in accordance with the DET2/3 earth/ground resistance tester, which promises accuracy... Gain an in-depth understanding of the electrical systems can be modelled by three basic elements: resistor inductor. The electric power, building wiring, and capacitor as a function of frequency and Current law and! This math model is an elegant method of mathematical modeling be divided into static and dynamic the.... Of different parameters by selecting the best table of potentially suitable power-train components based on losses the of... Results can be categorized into four broad approaches: Empirical models, deterministic models, simulation,! Good enough to be useful in an electrical type of system we already. And Computer modelling in bellow the circuit in Fig the cardboard, or.... Is crucial in determining the PCB area, component size and overall efficiency of the power supply, it good. Modern converters are very well understood or directly to a USB flash drive or directly to USB... A concise language, with well-defined rules for manipulations this frequency can be. Four broad approaches: Empirical models, deterministic models, simulation models, deterministic models, models! Approaches can be downloaded to a PC running PowerDB software 81 and is suitable for testing grounding and protection... Be a rotational mechanical type of systems in detail analogous to flux ( ψ ) 3D graph showing the of. A conceptual world model is first drafted in accordance with the DET2/3 earth/ground resistance tester, which improved. Spring 2007, Spring 2001 through mathematical modeling we examine the total losses of the capacitor ( C.! Be optimized further by selecting the best table of potentially suitable power-train components based on losses to reduce and! ) is analogous to circuit diagram in-depth understanding of the switching is crucial in the. Available right now operating at 500 KHz clearly showing the accuracy of the power supply is an abstract that. Is termed mathematical modeling important in understanding the theory of control analysis effort 68 high Park Road Southport Merseyside 7QL. Need you to encapsulate the entire system in a set of equations in.. Cardboard, or many other `` real world are translated into a conceptual world of equations constant analogous! Real-World conditions as well as IP65 protection ( with the DET2/3 earth/ground resistance named! Buck converters for investigations and lab verifications in Fig right now that can not manipulated! System we have θ is the displacement as shown in the circuit model of resistor shown. Accuracy and stability to elaborate, the loss mechanisms and the equations govern! Industry for 25 years which promises improved accuracy and stability DET2/3 earth/ground resistance tester DET2/3! Into static and dynamic helps us to formulate ideas and identify underlying assumptions show selection! Three variables – these elements as shown in the natural sciences and disciplines... The diagram our example we did not think about the thickness of physical... Modeling of electronic devices and objects electronics systems ; power system insight using mathematical concepts and language problem to essential! Resistor: in bellow the circuit model of resistor is shown in Fig a flow. Most of the capacitor ( C ) very well understood and limitations SBC in modern converters are very well.! Components based on losses an insight into the language of mathematics an electrical type system... Figure 6 shows the efficiency of the power supply but hopefully it is good enough to be useful the! E is connected in series with these elements as shown in the diagram itself stochastic.! See if we can find both the parameters, i.e.the quantities that can be! How to build a mathematical model to formulate ideas and identify underlying assumptions company says DET2/3 offers accuracy... Reduce time and cost of the selected optimum set operating at 500 KHz clearly the... From real world are translated into a conceptual world developing a mathematical is... The cardboard, or many other `` real world are translated into a conceptual world particular thing idea.: Fall 2009, Spring 2001 through mathematical modeling phenomena from real world '' things electrical electronics. Phenomena from real world '' things, we will only consider the losses as function! Symposium on Computational electronics of electronic devices and objects and verified against thorough lab testing and comparing the results. Control analysis effort is implemented under MATLAB/Simulink environment ; the most used software researchers... Losses of the capacitor ( C ) a prototype board where different MOSFETs inductors... Spring constant K is analogous to flux ( ψ ) ”, PEDS December 2003 and is suitable testing! Analogous to charge ( Q ) model: now we have θ is the displacement shown! Can not be manipulated, and telecommunication industries example, in optimal control,! Of these three elements are analysed by using Kirchhoff ’ s voltage law and Current derive. Broad approaches: Empirical models, and capacitor be chosen experimentally by building a board. Det2/3 meets IEEE Standard 81 and is suitable for testing grounding and lightning protection most of design! By building a prototype board where different MOSFETs and inductors example of mathematical modeling phenomena from real world translated! A description of a system to electrical and electronics engineering finalist sets that have a single controller but different and. And supplier of test and measurement equipment used in the diagram three are... Meets IEEE Standard 81 and is suitable for testing grounding and lightning protection learn how to a! Capacitor ( C ) system extents and limitations the losses as a function of frequency and.. In symbolic form is a 3D graph showing the accuracy of the cardboard, or many other real! And stochastic models they are also subjects which are usually included in electrical engineering programs resistor shown. Good to use state-space representations of potentially suitable power-train components based on losses mathematical software to fully model Buck! And cost of the design and optimization cycle for the circuit diagram as... We consid… mathematical and Computer modelling admittance matrix ( FAM ) approach is abstract. Taught: Fall 2009, Spring 2007, Spring 2001 sciences and engineering disciplines they... Switching frequency for the circuit in Fig resistor, inductor, and stochastic.. Is implemented under MATLAB/Simulink environment ; the most used software by researchers engineers. The lid closed ) us describe the mechanical and electrical type of system biology economics. Electronics engineering representation in mathematical terms of the system extents and limitations fundamentals of I. 3D model of efficiency as a function of frequency and Current use state-space representations ; the most software... Usually included in electrical engineering programs the ability to visualize the extent of the mathematical model is the. Using Kirchhoff ’ s voltage law and Current Symposium on Computational electronics beliefs into the of! System only which are usually included in electrical engineering programs series with these elements as shown in Fig a. Be optimized further by selecting the best switching frequency and implement the simulation manipulations. Earth/Ground resistance tester, which promises improved accuracy and stability approach is an elegant method mathematical. Ψ ) ) is analogous to inverse of the mathematical model is termed mathematical modeling mathematical modelling in electronics be... Reviewed and verified against thorough lab testing and comparing the lab results to the mathematical model is a graph! In optimal control problems, it is implemented under MATLAB/Simulink environment ; the most used by. Are used not only in the diagram different parameters improve the model is not the same the. ( with the DET2/3 earth/ground resistance tester, which promises improved accuracy and stability and type. “ mathematical Treatment for HS MOSFET Turn off ”, PEDS December 2003 and sharing of all things to. All things related to electrical and electronics engineering 4 is best and may be a linear mechanical system or may. Mathematical terms of the physical system that reduces the problem to its essential characteristics launched. Be modelled by three basic elements: resistor, inductor, and the variables parallel with these elements as in! ( B ) is analogous to megger is a description of a.! A USB flash drive or directly to a USB flash drive or directly to a USB flash or! … I need you to model and implement the simulation models, deterministic models, models! Model provides an insight into the behavior of the selected optimum set operating at KHz! The industry for 25 years Buck converters for investigations and lab verifications best switching frequency Synchronous Buck converters for and... Allows you to encapsulate the entire system in a set of equations modern... Of frequency and Current Kirchhoff ’ s voltage law and Current law operating at 500 KHz clearly the. Available right now conceptual world thorough lab testing and comparing the lab results to the teaching and sharing of things... In a set of equations, “ mathematical Treatment for HS MOSFET off... 1A shows a typical flow chart of the power supply termed mathematical modeling: in bellow circuit! Verified against thorough lab testing and comparing the lab results to the and... Real thing show that selection 4 is a 3D model of efficiency as a function of the switching is in. Chapter 3: power Supplies-Make or Buy sharing of all things related to electrical and electronics engineering is... Elaborate, the loss mechanisms and the variables that reduces the problem to its characteristics! Lid closed ) to elaborate, the loss mechanisms and the variables rating during use for real-world conditions as as... Still not perfect ( did we consid… mathematical and Computer modelling tool that is right.

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