tag:blogger.com,1999:blog-8200098102909041178.post7329384152577090583..comments2024-03-24T09:12:10.872-04:00Comments on Shane Colton: First Sensorless FOC Test DriveShane Coltonhttp://www.blogger.com/profile/10603406287033587039noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-8200098102909041178.post-26199595012351212412011-12-15T04:09:51.616-05:002011-12-15T04:09:51.616-05:00Now that it works, you should try converting a pow...Now that it works, you should try converting a power tool from a brushed to brushless motor, and see if you can make it work, just for the heck of it. A circular saw, or something.Andrewnoreply@blogger.comtag:blogger.com,1999:blog-8200098102909041178.post-70868963365005331332011-12-11T00:16:59.069-05:002011-12-11T00:16:59.069-05:00Hi Laurence,
Thanks!
For the visualization, I wr...Hi Laurence,<br /><br />Thanks!<br /><br />For the visualization, I wrote a VB .NET dashboard that shows data in real-time (numeric and two plots) and logs it to a comma-delimited text file. I can read this file later using MATLAB and make plots like the ones in this post.<br /><br />The data is transmitted from the motor controller over a serial port at an adjustable rate, up to about 100Hz. So, not fast enough to plot phase current waveforms. But, the data is still useful when cross-plotted (against rotor postion, for example) since it is sampled synchronously in the controller.Shane Coltonhttps://www.blogger.com/profile/10603406287033587039noreply@blogger.comtag:blogger.com,1999:blog-8200098102909041178.post-58461839217249768972011-12-09T21:43:00.944-05:002011-12-09T21:43:00.944-05:00Gday,
I have been messing about with FOC on a fre...Gday,<br /><br />I have been messing about with FOC on a freescale 56F8037. Recently, when things were working ok, I managed to fry the last of my amplifiers. So, while Im waiting to accumulate cash to build more, I have been working on the data visualisation side of things. I have this 8037 running on mainly fixed point code, as described in the freescale app notes and I have written some code that successfully turns this into real, useful values on the PC side of things. <br />I would really like to start graphing some of this data out (ie, realtime phase currents, PWM ratios, rotor position etc) and was wondering what software you use to plot your graphs? Do you graph in real time, or have you been gathering the data and plotting it later? <br />Thanks for your great blog too!<br /><br />Laurence M (from Australia)Anonymousnoreply@blogger.com