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Part Number: TIDA-020030
Dear TI Team,
I have a requirement for 3Phase inverter 27KW! for which I was planning to use your reference design TIDA-020030 connecting 3 of them 1 for each phase.
My technical requirement is as below:
So what changes do i need to do? Do you suggest to use DC DC converter to boost the I/P voltage. If so could you suggest me any TI reference design for the same? Deeply awaiting your reply and thanks in advance.
Do you mean the DC bus voltage for the inverter is 20V-50V only, and the inverter output is 415V?
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In reply to Xun:
Yes actually i think it is connected to some solar panel array due to which there is wide range of I/P but as per their specification operational voltage is 20-33VDC only and O/p load is 3 phase motors 415VAC.
In reply to Vijay Gohil12:
What is the Maximum output voltages? The design can be used for either HV or LV Bus input, the driver has 10A drive capability. But I don't think the inverter AC output peak voltage can be larger than DC bus voltage.
Of course I will need to boost voltage first from 24VDC to around 450VDC or so to get 415V AC as output.
I was planning to make the design in 2 stages: One DC-DC boost and Second DC-AC using TIDA020030.
i was planning to use 3 TIDA020030 cards half bridge to generate 3 phase 415V AC using a single microcontroller to fire all simultaneously to get 3 phase. Just wanted to be sure form you guys if i can use it this way! (see Block Diagram)
Thanks for the clarification. Yes, this is a suitable case for TIDA-020030. The IGBT module that is used in this design is too big, you might want to choose a smaller IGBT module. For Boost converter you may want to use dual ch iso driver such as UCC21540.
Thank you for your quick reply. I know TIDA-020030 would be too big for DC to AC but ideal working temperature of environment in my application country is around 45-50°C. So i dont mind using big module just being on safest side and also cost is no barrier for this project.
Could you share me some reference design to get DC DC boost(any TIDA cards)?
I don't think I have seen a Boost Converter TIDA of ~25kW but you could refer to TIDA-01604.
It is a 6.6kW TTPL PFC using C2000 MCU. The structure is similar to a Boost. Just remove the LF switches. You would need multiple phases to achieve such power rating. One C2000 can be used to control both Boost and the inverter.
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