結果:

Hey everyone! I'm spotlighting Nikolaos Nikolaou today because of the sheer quantity of his Cody solutions over such a relatively short time span. Nikolaos has submitted 1,161 Cody solutions over the last 6 months of 2019, averaging 6.4 solutions per day. Achieving a Cody rank of 19 with a score of 18,820 and earning him a plethora of badges (including the Speed Demon badge of course). He's completed 24 problem groups and is well into most of the remaining 35.

Way to go Nikolaos!

I have 1942x1 cell msgs. Single msg format is 1x1 Float64MultiArray. Inside that there is Data 16x1 double. I need to extract data and store them as vector [1942x16]. I was able to read every data and transpose them into 1x16. Now I need to store that 1x16 by row and build final 1942x16 vector. Does anyone have an idea for that?

how to Design ALMS algorithm using simulink please help me, for learning adaptive lms algorithms using simulink..without using LMS block

Good morning everyone,

I recently approached Simscape environment to similute (simple) electrical circuits based on resistors (R), capacitances (C) and direct current generators (I). The experience has been quite satisfactory.

Now I have to couple the Simscape models to novel modifications of sampling-based sensitivity analysis techniques and/or non gradient-based optimization methods (genetic algorithms, particle swarm, particle filters, etc) for model calibration. In this regard, I am not keen on potentilities offered by other toolboxes implemented in Simulink environment, rather than I would like to: i) to update the values of resistors, capacitances and current generators from script ii) to run the simulation from script iii) to collect the output in matlab workspace.

I looked for a while in possible solutions but I understood that it is not an easy task, and that the most common approach is to open the resume mask and manually update the parameters.

I wonder if there is any approach to do what I previously described. I know that it is possible with Simulink model, but have no idea if I can do the same with Simscape model.

The attached image is an example of Simscape model that I want to embed in a sensitivity analysis/optimization loop.

Thank you in advance for your kind advices

Hi,

I am trying to design a Simulink model for transmission cable to characterize some features of an existing electrical system. I am using the Lumped Parameter L-section with few segments. I want to set initial conditions to each segment capacitors. Is there a way I can set those?

Thanks in Advance.

Check out digCircs by Graham W Griffiths, this weeks pick by Sean . Read Sean's blog post about why he picked Graham's submission this week.

Please post any comments to Seans's blog post here.

Check out nextname by Stephen Cobeldick, this weeks pick by Jiro. Read Jiro's blog post about why he picked Stephen's submission this week.

Please post any comments to Jiro's blog post here.

I'm please to announce this new MATLAB Central feature for posting community highlights. This new channel will:

• Allow MathWorks and the community leaders to easily post newsworthy items to the community
• Allow community visitors to respond to these posts with Likes and Replies
• Allow anyone to follow/subscribe the channel so they can be notified of new posts

What do we mean by newsworthy?  In short, this means anything we think some or all of the community might like to know. Here are some examples of what we’re thinking about posting to this new channel.

• New or upcoming community features or events
• User highlights (e.g. examples of good behavior, interesting posts)
• Interesting content (e.g. File Exchange pick of the week submissions)
• Release notes and new features
• Polls (future)

New highlights will appear on the community home page at the time they are posted and all past highlights can be found by going to the community home page and clicking the Highlights link in the right column.

As always, let us know what you think by liking this post or commenting below.

The following is a list of updates and new features for MATLAB Central, including MATLAB Answers, File Exchange, Blogs, and Cody.

New Features

Profile search - A global community profile search has been added. The search field on community profile pages has been updated from a standard content search to a user profile search. This improvement makes it easier to find community members across all MATLAB Central. Previously one had to search the Answers contributors , File Exchange authors , and Cody players page when looking for a user profile.

Last seen - We have added a 'last seen' timestamp to community profiles which displays the date of a person's last visit to MATLAB Central. This can be a relevant bit of information and help determine how recent someone has been active in the community.

Answers pages design update - Answers Q&A pages have been updated to remove extra white space. This update includes smaller sized avatars, and position changes for the voting and content actions among other small changes. All these changes also help improve the mobile experience as well.

Original poster styles - Original poster styles have been introduced in Answers. When a question author participates in a Q&A thread their comments or answers will be styled with a blue background and left border so they're easily discernable from other contributors.

File Exchange data in monthly emails - File Exchange stats will be included in the monthly email we send to contributors who've participated in the community on any given month.

Trending content algorithm - The MATLAB Central home page trending content algorithm has been updated to look at content activity over a shorter period of time resulting in a more dynamic feed.

Walter Roberson does it again by winning the coveted MOST ACCEPTED answers badge for all his contributions in MATLAB Answers this past year. Walter has won this badge every year since 2015. It was way back in 2014 when Image Analyst out paced Walter and was awarded the badge.

There are 10 community members who have achieved the Top Downloads badge for their popular File Exchange submissions in 2019. Do you recognize any of these names? There's a good chance you've used one or more of their toolboxes or scripts in your work if you're a frequent visitor to File Exchange, if you're not you might want to check out what they've posted, it may save you a lot of time writing your own code.

--------------------- Top Downloads Badge Winners -----------------

• Diego Barragán
• Dirk-Jan Kroon
• Yi Cao
• John D'Errico
• Yair Altman
• Giampiero Campa
• Michael Kleder
• Dr. Siva Malla
• Antonio Trujillo-Ortiz
• Brett Shoelson

Congratulations to all these winners and a giant THANK YOU for all they've done this past year to help everyone in the MATLAB Central community!

We are happy to announce that virtual badges can now be achieved for participating in MATLAB Central File Exchange . We have 30 badges that anyone can achieve, which will also boost your community profile. Some badges are relatively simple to get while others will depend on how useful your submissions are to others in the community. Check out Ned Gulley's blog post for a great introduction.

Explore resources, ask questions, and discuss topics related to using Simulink to apply power electronics control to Electric Vehicles, Renewable Energy, Battery Systems, Power Conversion, and Motor Control. This is the 3rd MATLAB Central community, after Maker and SimBiology , and is moderated by Tony Lennon . Tony is the Power Electronics Marketing Manager at MathWorks.

Visit the community here . As always, let us know what you think by liking this post or commenting below.

Actually i have chosen the DC link capacitance in my inverter circuit. i wanted to know how to perform a simulation of it in MATLAB and to check the affecting parameters when the capacitance is varied and obtain a 3D graph.

I have simulated the photovoltaic (PV) module on Simulink as in my simulation. I want to transfer the signals of I-V scope into the plot in Matlab. But the scope do not show the voltage value on the X-axis. Instead, the X-axis shows the time. As a result, when I use the data saved in Matlab workspace, I just get the current-time plot instead of current-voltage plot. How can I fix this problem ? ( The current-time plot is the same as the I-V characteristic in datasheet of the PV panel, but the X-axis expresses the time value. I want to change it into voltage value)

hi MPPT on the designed bosst circuit does not work correctly. can you help?

From where i can start to learn . Please suggest a particular topic or lectures.

Hi,Everyone,I am new member here. I want to learn simulation on projects. Please suggest, from where i can start Simulink easily and learn from Basics to Advance level.

have anyone use multiobjective function optimization via PSO namely MOPSO ?? I need some help