Speed sensor required for Lab 5B?
Hello,I am developing a motor control for a rotary compressor. I am working through the Insta-spin labs and everthing is ok until I get to Lab5B. We have no speed feedback sensors -encoder or tach....
View ArticlePM sensorless - level6 - Current Control -DRV8301 hc c2 kit
Hi,i'm editing TI's project PM sensorlessfor the kit DRV8301 hc c2 kit.I'm not workingwithNEMA17 motor .I noticedthat if IsetthecurrentiqRef to 0.95 , I get a current on the power supply of about 2.8...
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BLDC trapeizodal Control trapeizodale with hall effect sensors
Hi, I am monitoring the BEMF trapezoidal control with hall effect sensors. I notice the spike in the graph (red circles). What is the cause?
View ArticleTeaching Your PI Controller to Behave (Part VIII) How to measure system...
Hello,I have been trying to measure my system inertia in order to close the speed loop on my motor controller. I am using the boostXL-DRV8301 REVB with the F28027 microcontroller.I am trying to follow...
View ArticlePrecise units for the identified gMotorVars.Flux_VpHz
Hi ChrisI am having some contradictory expediences trying to interpret the parameter: gMotorVars.Flux_VpHz.Can you tell me what you understand the units of this parameter to be? In particular - I...
View Articlerelationship between rotor flux angle and Iq for IPM
Dear sir/madam, I read SPRUHP4.pdf, and see "Ideal Orientation: 90 degrees for non-salient synchronous; slightly more for salient machines, and slightly less in asynchronous machines since part of...
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Motor runs fine up to 4400revs but halts at 4500
Hi,I've been struggling to get this motor to run but I thought I had it nailed down until I ran it loaded. Using the GUI (loaded with Lab10a) I can increase the speed by 500 RPMs up until I get to...
View ArticleResolution of FAST speed estimation
Hello,you can read "reliable and robust estimation of flux, angle, speed and torque across use conditions", "Best speed input into the control System", "high quality feedback signals", ...but is there...
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Teaching Your PI Controller to Behave (Part VIII)
Dave Wilson, Motion Products Evangelist, Texas Instruments We are now on the eight part of a ten part series about teaching your PI controller to behave like you want it to. At the heart of this...
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Teaching Your PI Controller to Behave (Part VI)
Dave Wilson, Motion Products Evangelist, Texas InstrumentsI am writing this particular blog installment while lying by a swimming pool in a resort on the Riviera Maya. There are lots of beautiful...
View ArticleCompute Back EMF
Dear Sirs, In manual spruhj1f, Page 411 Figure 11-19, Decoupled PI Controllers for a PMSM Vq = PID_q_out + id * ω * Ls + ω * KE ; I want to use “USER_MOTOR_RATED_FLUX * ω(rad/s) * 2 * 3.1415 “to...
View ArticlePID constants
Hai, I implemented a PID algorithm for a generator speed control by adjusting engine throttle valve using a stepper motor. Here Iam measuring RPM of generator axile output rotation with hall...
View ArticleTMDSCNCD28377D & 4 motor 4 DRV8303 isolation recommendation?
Hi.I am wondering if there are any recommended hardware isolation to connect theTMDSCNCD28377D & 4 - DRV8303 to drive 4 motors?.I looked at the evaluation boards schematics but I did not find a...
View ArticleSVM gain
Hello,I am new to motor controls. I am working through the Insta-Spin FOC labs. They are very nice and all the hardware and software is working very well. This is a great learning tool. I have question...
View ArticleSpeed sensor required for Lab 5B?
Hello,I am developing a motor control for a rotary compressor. I am working through the Insta-spin labs and everthing is ok until I get to Lab5B. We have no speed feedback sensors -encoder or tach....
View ArticlePM sensorless - level6 - Current Control -DRV8301 hc c2 kit
Hi,i'm editing TI's project PM sensorlessfor the kit DRV8301 hc c2 kit.I'm not workingwithNEMA17 motor .I noticedthat if IsetthecurrentiqRef to 0.95 , I get a current on the power supply of about 2.8...
View ArticleClik here to view.
BLDC trapeizodal Control trapeizodale with hall effect sensors
Hi, I am monitoring the BEMF trapezoidal control with hall effect sensors. I notice the spike in the graph (red circles). What is the cause?
View ArticleTeaching Your PI Controller to Behave (Part VIII) How to measure system...
Hello,I have been trying to measure my system inertia in order to close the speed loop on my motor controller. I am using the boostXL-DRV8301 REVB with the F28027 microcontroller.I am trying to follow...
View ArticlePrecise units for the identified gMotorVars.Flux_VpHz
Hi ChrisI am having some contradictory expediences trying to interpret the parameter: gMotorVars.Flux_VpHz.Can you tell me what you understand the units of this parameter to be? In particular - I...
View Articlerelationship between rotor flux angle and Iq for IPM
Dear sir/madam, I read SPRUHP4.pdf, and see "Ideal Orientation: 90 degrees for non-salient synchronous; slightly more for salient machines, and slightly less in asynchronous machines since part of...
View Article