Other Parts Discussed in Thread: TIDM-1000,
Hello,
We currently have a TIDM-1000 Vienna circuit evaluation module that we have been able to run up to its rated 2400W in all 4 builds. Our project consists of ramping up the power of this Vienna circuit to 32KW. We have been working on this for a little over a year and can get 2500W out before we begin to suffer bus imbalance and over-current trips on our custom circuit.
Essentially we duplicated the low-power components and translated the signal levels of the evaluation board while replacing the high power components with much higher power components and heat sinking ie. mosfets, capacitors, inductors, etc.
The 3mH (eval) inductors were replaced with 0.6mH 16KVA inductors. You can see them at the top of the picture. Our bus capacitors are film went from 180uF (eval) to 580uF. We went to the MSC40SM120JCU3 FET and higher rated SiC diodes. All devices should run 50Khz easily. calculation.xlsx shows these values to be ok.
One other thing we had to update were the hall effect sensors. We needed more range so we are using the L03S100D15. We are compensating for the hall effect offset to generate identical signals as the Eval board.
For the most part all of the low power components are identical to the ones used on the eval board.
We are running by slowly ramping up the input voltage, we don't get very far until we suffer bus imbalances and overcurrent trips.
What we would like is if TI had any kid of on-site services that we could contrac tto come out for a day or so and review our setup and help us out a bit. There seems to be too much going on here to solve on a forum such a this.
That being said, I can answer any questions you may have about our setup, even providing schematics if applicable. We have been trying to get this circuit to work for some time.
Sometimes too much information is a bad thing so I will end this here for now.
Let me know your thoughts. I look forward to hearing them.
-Chris Yeckel
Chief Engineer Stangenes Industries
