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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...
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Why speed and current PID controller use different algorithm?
Dear sir/madam, In InstaSpin lab, the speed PID controller is in parallel form, while the current PID controller is in series form. I don't know what cause them different. Best...
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Phase current problem at motor high speed
(Please visit the site to view this file)Hello guysI am using InstaSpin for E-mobility application; this soluction is running on C++ code, keeping the InstaSpin libraries in C code. The user.h file is...
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how to set a ADC current offset for the other PIN
In my application,I need detect the bus current,so I add hall sensor on bus line.the1.65V±1.65V output signal PIN of hall sensor connects ADC-B5 PIN of 28069M.In <motorware_hal_tutorial>,it can...
View ArticleIs Instaspin proprietary?
hello, I'm interested in sensorless BLDC control with an FPGA. (my project is restricted to use FPGAs instead of TI processors). In my searches, I found Instaspin. I found a video that introduces...
View ArticleUnderstanding the #define USER_ADC_FULL_SCALE_CURRENT_A (value) used in the...
I am using just MotorWare v1.01.00.14 code. I am using both the DRV8301_69M_KIT and alternatively the LAUNCHXL_28069M kit (with a BOOSTXL_8301 board)I am trying to understand the (value) used in each...
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instaspin foc, abnorml current waveform,application in water pumper.
I’m testing a BLDC,AC 230V in, 2HP, 8 poles,2850RPM rated,application in water pumper. hardware referenct HVKIT. use mcu 28027F.motorware version: motorware_1_01_00_14ccs Version: 6.0.1.00040.the...
View ArticleCurrent Regulator Problem
We're running a BLDC motor in torque-control mode, using Lab 04a on a DRV_8301 EVM kit with a 28069 Control Card. We ask for a particular amount of Q-axis current and then vary the load. The system...
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how to set a ADC current offset for the other PIN
In my application,I need detect the bus current,so I add hall sensor on bus line.the1.65V±1.65V output signal PIN of hall sensor connects ADC-B5 PIN of 28069M.In <motorware_hal_tutorial>,it can...
View Articlerelationship between rotor flux, Ke, Kt
Dear Sir,From user manual(spruhj1f, Page 396), the rotor flux (which is also equal to the back-EMF constant (Ke) in SI units). Also,Mtr(s)=3/4*P*rotor flux; ??? since it is the transfer function...
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instaspin foc, abnorml current waveform,application in water pumper.
I’m testing a BLDC,AC 230V in, 2HP, 8 poles,2850RPM rated,application in water pumper. hardware referenct HVKIT. use mcu 28027F.motorware version: motorware_1_01_00_14ccs Version: 6.0.1.00040.the...
View ArticleSVM Waveform Generator Equation
Hello guys,In his simulation model, of space vector modulation, Dave Wilson used a different method for generating the SV modulated waves (Vmod_a, Vmod_b & Vmod_c).Where can I find the mathematical...
View ArticleSpeed Limitation while using Torque Mode
Hello Guys,I am using MotorWare for a university project. We have an experimental electrical car, and want to use InstaSPIN for control. We have adapted the HAL to our custom platform, and for safety...
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Teaching Your PI Controller to Behave (Part I)
Dave Wilson, Motion Products Evangelist, Texas InstrumentsRichard Poley manages the training activities for our C2000 microcontrollers (MCUs), and co-teaches the TI Industrial Control Seminar series...
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Teaching Your PI Controller to Behave (Part II)
Dave Wilson, Motion Products Evangelist, Texas InstrumentsIn my previous blog on this topic, we briefly reviewed the history of the PI controller and presented two forms that are commonly used today....
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How to control power generation in ACIM
We are testing a high current ACIM for use as a generator.This uses custom hardware controlled by a 28069 microcontroller.It uses an encoder for position calculation and the slip magnetic angle from...
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Current Control Loop Tuning
Below I have attached two images. The first one our motor operating at 20A Iq. The second is the motor at 40A Iq. I'm sampling at 2 Mega Samples per second and then running the post op amp current...
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