Walkerwilliams01 asked . 2020-04-28

How does using multiple SimPowerSystems Ideal Switch blocks in series with snubber impedances compare with reality in my power network in SimPowerSystems 4.3 (R2006b)?

When using multiple ideal switches in series, the snubber circuit must be used. A high value resistance value is then added to allow simulation to work. I am presently building power distribution networks using the Ideal Switch block as the main building block to create virtual power contactors which are then assembled together to create large network of power contactors. I must use the snubber in order to allow this environment to simulate. I would like to know how does using Ideal Switch blocks in series in such a manner compares with reality. My example model is attached as "Basic_network_topology.mdl".

simulation , matlab

Expert Answer

Prashant Kumar answered . 2024-11-23 14:48:16

If you build a real circuit with two switches connected in series as in your example "Basic_network_topology.mdl", the voltage appearing across switches when both switches are opened will be dictated by the stray capacitance of each individual switch and by their capacitances to ground. We can assume that the resistive leakage current is negligible.

For a mechanical switch this stray capacitance can be evaluated based on the

switch geometry or it can be measured.

In your example, if you replace the resistive snubber by capacitive snubbers

by setting

 Rs=0 and Cs=10e-12

(assuming 10 pF stray capacitances), you will still obtain 50 V across each switch. See example model "Basic_network_topologyGS.mdl".

Now, if the capacitances are

 Cs1= 10 pF and Cs2=30 pF

 you get 

 Vsw1= 75 V  and Vsw2 = 25 V.

Naturally, if you use a Voltage sensor with given input impedance, the voltage sharing will be affected. For example, using a voltage sensor with 10-Megohm resistive input impedance to measure Vsw1 and Cs1=Cs2= 10 pF will give

 Vsw1| ~0  V Vsw2=100 V

If the voltage source is an AC source of 60 Hz and 100V peak voltage, you would get Vsw1 = 3.8 V peak and Vsw2 = 99.8 V .

In other words, the voltage sharing is highly dependant on the stray capacitances and voltage sensors input impedances as it would be in the real life.

Not satisfied with the answer ?? ASK NOW

Recent Matlab Projects

Classification of Covid and Non-Covid Lungs CT-Scan using Deep Learning with MATLAB

Matlab simulation on Wind Energy system

Frequently Asked Questions

MATLAB offers tools for real-time AI applications, including Simulink for modeling and simulation. It can be used for developing algorithms and control systems for autonomous vehicles, robots, and other real-time AI systems.

MATLAB Online™ provides access to MATLAB® from your web browser. With MATLAB Online, your files are stored on MATLAB Drive™ and are available wherever you go. MATLAB Drive Connector synchronizes your files between your computers and MATLAB Online, providing offline access and eliminating the need to manually upload or download files. You can also run your files from the convenience of your smartphone or tablet by connecting to MathWorks® Cloud through the MATLAB Mobile™ app.

Yes, MATLAB provides tools and frameworks for deep learning, including the Deep Learning Toolbox. You can use MATLAB for tasks like building and training neural networks, image classification, and natural language processing.

MATLAB and Python are both popular choices for AI development. MATLAB is known for its ease of use in mathematical computations and its extensive toolbox for AI and machine learning. Python, on the other hand, has a vast ecosystem of libraries like TensorFlow and PyTorch. The choice depends on your preferences and project requirements.

You can find support, discussion forums, and a community of MATLAB users on the MATLAB website, Matlansolutions forums, and other AI-related online communities. Remember that MATLAB's capabilities in AI and machine learning continue to evolve, so staying updated with the latest features and resources is essential for effective AI development using MATLAB.

Without any hesitation the answer to this question is NO. The service we offer is 100% legal, legitimate and won't make you a cheater. Read and discover exactly what an essay writing service is and how when used correctly, is a valuable teaching aid and no more akin to cheating than a tutor's 'model essay' or the many published essay guides available from your local book shop. You should use the work as a reference and should not hand over the exact copy of it.

Matlabsolutions.com provides guaranteed satisfaction with a commitment to complete the work within time. Combined with our meticulous work ethics and extensive domain experience, We are the ideal partner for all your homework/assignment needs. We pledge to provide 24*7 support to dissolve all your academic doubts. We are composed of 300+ esteemed Matlab and other experts who have been empanelled after extensive research and quality check.

Matlabsolutions.com provides undivided attention to each Matlab assignment order with a methodical approach to solution. Our network span is not restricted to US, UK and Australia rather extends to countries like Singapore, Canada and UAE. Our Matlab assignment help services include Image Processing Assignments, Electrical Engineering Assignments, Matlab homework help, Matlab Research Paper help, Matlab Simulink help. Get your work done at the best price in industry.