MATLAB/SIMULINK for engineering applications: day 3
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3 days hands on workshop on MATLAB/SIMULINK for engineering applications is aims at to provide awareness on MATLAB/SIMULINK to engineers.
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MATLAB/SIMULINK for engineering applications: day 3
- 1. “MATLAB EXPLORATION” (Place to visualize your thoughts) February 13, 2016 Presentation By Mr. ReddyPrasad Reddivari, Assistant Professor Department of Electrical and Electronics Engineering Sri Venkateshwara College of Engineering Bengaluru, Karnataka-562157 Tel: 9494747497 E-Mail: reddytnp.244@gmail.com. Website: www.reddyprasad.yolasite.com MATLAB/SIMULINK for Engineering applications
- 2. Introduction to MATLAB and Simulink Contents Built in functions Getting Started Vectors and Matrices Introduction Simulink Modeling examples MATLAB SIMULINK M–files : script and functions
- 3. Introduction Simulink – Used to model, analyze and simulate dynamic systems using block diagrams. – Fully integrated with MATLAB , easy and fast to learn and flexible. – It has comprehensive block library which can be used to simulate linear, non–linear or discrete systems – excellent research tools. – C codes can be generated from Simulink models for embedded applications and rapid prototyping of control systems.
- 4. Simulink Used to model, analyze and simulate dynamic systems using block diagrams. Provides a graphical user interface for constructing block diagram of a system – therefore is easy to use. However modeling a system is not necessarily easy !
- 5. MATLAB IntroductionMATLAB IntroductionMATLAB IntroductionMATLAB Introduction • In Windows systems MATLAB is started by double-clicking the mouse on the appropriate icon. • In Windows systems MATLAB is started by double-clicking the mouse on the appropriate icon.
- 8. 8 Simulink Toolbox • Provide a simulation environment for common discrete/continuous system • Invoke by typing ‘simulink’ in command windows
- 10. Simulink Toolbox
- 11. Simulink Toolbox
- 12. Simulink Toolbox
- 14. Ex.1:Fullwave rectifier Simulink model
- 15. Ex.2:Fullwave bridge rectifier Simulink model
- 16. 16 Closing the loop - Rapid Controller Prototyping
- 17. Ex.4:Hybrid Electrical vehicle Simulink model Control engineering I.C engine engineering electrical engineering mechanical engineering mechanical engineering
- 18. MATLAB DemosMATLAB DemosMATLAB DemosMATLAB Demos MATLAB has remarkable graphics capacities, gallery is one of them: • The Gallery is a place to hang particularly elegant examples of graphics visualization in MATLAB. • Knot, • Quiver, • Klein II, • Cruller and ... MATLAB has remarkable graphics capacities, gallery is one of them: • The Gallery is a place to hang particularly elegant examples of graphics visualization in MATLAB. • Knot, • Quiver, • Klein II, • Cruller and ...
- 20. MATLAB DemosMATLAB DemosMATLAB DemosMATLAB Demos MATLAB has many toolboxes: • Control toolbox is one of the important toolbox in MATLAB. • RLC Circuit Response, • Gain and Phase Margins, • Notch Filter Discrete, • PID and ... MATLAB has many toolboxes: • Control toolbox is one of the important toolbox in MATLAB. • RLC Circuit Response, • Gain and Phase Margins, • Notch Filter Discrete, • PID and ...
- 22. MATLAB DemosMATLAB DemosMATLAB DemosMATLAB Demos MATLAB has many toolboxes: • Signal Processing toolbox is one of the important toolobx in MATLAB. • Designing Filter, • Filtering a Signal, • Discrete and Continuous Fourier Transform, • Spectral Analysis and ... MATLAB has many toolboxes: • Signal Processing toolbox is one of the important toolobx in MATLAB. • Designing Filter, • Filtering a Signal, • Discrete and Continuous Fourier Transform, • Spectral Analysis and ...
- 24. MATLAB DemosMATLAB DemosMATLAB DemosMATLAB Demos • Simulink has the ability to simulate a large range of systems, from very simple to extraordinarily complex. The Model and demonstrations that you will see in this section include both simple and complex systems. • Simulink has the ability to simulate a large range of systems, from very simple to extraordinarily complex. The Model and demonstrations that you will see in this section include both simple and complex systems.
- 26. MATLAB DemosMATLAB DemosMATLAB DemosMATLAB Demos Simulink has the ability to simulate a large range of systems, in the menu of Simulation we have: • Pause. • Stop, • Simulation Parameters, • Start, Simulink has the ability to simulate a large range of systems, in the menu of Simulation we have: • Pause. • Stop, • Simulation Parameters, • Start,
- 29. THANK YOU
Editor's Notes
- In this example, we first start by the model in full simulation with Ts at 1µs. The voltage source start from 0 to 1pu. The controller is adjust to be able to work with the source at any voltage. This is more realistic since we will be using a variable voltage source with the real DFIG and we won’t start it a full voltage. Then we replace the IGBT bridge by the IGBT bridge switching function with interpolation with Ts at 25µs. Also all the measurements are sent to the controller from the simulated plant through Analog input/output to the controller. The controller send the pulses to the IGBT bridge using digital input/output. This will add the delay that are present between a real plant and a real controller. After adding these delays, the gain of the controller had to be readjusted. Now that the model with loop-back IO is working, the pulses are sent to the real IGBT bridge and the voltage measurement comes from the real DFIG. When increasing the voltage, the controller behave strangely and couldn’t control the DFIG properly. This means the simulated model is different then the real plant. The problem is that the voltage source as a variable transformer with variable impedance. This variable impedance was neglected in the simulated model.