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by AivisJ
Thu Mar 14, 2019 9:17 pm
Forum: Other projects
Topic: Controlling 2 AC motors with power 2kW for each
Replies: 10
Views: 1275

Re: Controlling 2 AC motors with power 2kW for each

The final product, if everything will work, I will use in my workshop, so school haven't any interest to sponsor this project or give their devices. For now I won't buy any parts from big brands, because I don't know if it will work - so alibaba or ebay 😁 About motor it could be something like this:...
by AivisJ
Thu Mar 14, 2019 8:39 pm
Forum: Other projects
Topic: Controlling 2 AC motors with power 2kW for each
Replies: 10
Views: 1275

Re: Controlling 2 AC motors with power 2kW for each

Right, it is for school 😁 At this moment there is nothing bought for this project. Have found some vfd's which I could use, at least which I think I could use. Something like this https://m.aliexpress.com/item/32801730146.html?pid=808_0000_0201&spm=a2g0n.search-amp.list.32801730146&aff_trace_key=445...
by AivisJ
Thu Mar 14, 2019 7:23 pm
Forum: Other projects
Topic: Controlling 2 AC motors with power 2kW for each
Replies: 10
Views: 1275

Re: Controlling 2 AC motors with power 2kW for each

All I need is that motors start in same time and reaches aprox. 450 rpm. Two motors - 2 vfd's. Then load is being applied to motors, similar, but not equal. Till they stop or reach predefined current. And Then I need to measure how torque increase and what is max value on each motor and compare them...
by AivisJ
Mon Mar 11, 2019 8:24 pm
Forum: Other projects
Topic: Controlling 2 AC motors with power 2kW for each
Replies: 10
Views: 1275

Re: Controlling 2 AC motors with power 2kW for each

Maybe, someone have worked with raspberry pi and VFD (variable frequency drive)? Is there any possibilitie to log information from vfd and show it on raspberry pi display?
by AivisJ
Mon Dec 03, 2018 8:13 pm
Forum: Other projects
Topic: Controlling 2 AC motors with power 2kW for each
Replies: 10
Views: 1275

Controlling 2 AC motors with power 2kW for each

Hello I am very new for raspberry PI. But I have to make system where I can controll 2 AC motors. (220VAC) I hope you can give me information about things what I need to do that. The main idea is that both motors will start at same time, but the load and forces that brakes them could be different. W...

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