Power Inverters Explained - How do they work working principle IGBT

Power inverter explained. In this video we take a look at how inverters work. We look at power inverters used in cars and solar power to understand the basics of how they operate. We then cover electricity fundamentals, direct current, dc, ac, alternating current, single phase, three phase and split phase, electricity, pulse width modulation, variable speed drives, three phase rectification and more.

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#electrical #electronics #engineering
inverters, igbts, power inverter, solar power, car inverter

[EngineeringMindset]

⚠️ *Found this super useful?* You can buy Paul a coffee to say thanks: ☕

[prdiludi]

3 hours of your videos would replace my whole 4 year highschool education. Its just mind blowing how far IT has come. You sir are doing honorable work here.

[svwtsvfcb]

I rarely comment but here I have to. I am an engineering student and I have to finish this assessment for next week, part of the assessment is to design an inverter that is connecting a solar pannel to AC loads. I must confess that until now I only had a vague idea of what an inverter is, but with this video I finally have a complete understanding of the working of such a device. Power electronics is clearly not my favorite course but at least you have made it comprehensible, thank you very much.

[coolmonkey]

You explained this times better than my lecturer. Thank you

[rakeshadhikar]

Just one word "Love" your work ! Amazes me what I lost in my Engineering and what I gain here and other videos of yours. Will definitely pursue my Masters after a gap of 15 long years working in IT. Thank you !!

[zachikhothingo]

What a gem this channel is.
Understanding the concepts after so many years..
Keep up the good work. Thank you much.

[oceanbreeze]

Easily the best explanation possible, you've made me experience the joy of learning!

[evertadams]

Very good for the basics of an inverter. Personally I used to startup AC variable speed inverters using SCRs as switches. The trick to using SCRs is the ability to turn them off, which requires a reverse bias. The IGBT came along later. The advantage for them is that they can be turned off by removal of the trigger signal. The advent of the IGBT significantly reduced the cost of the inverter and or AC variable speed drive. Note that all inverters wither AC or DC sourced, have a constant voltage DC Buss dependent on the value of the input voltage.. The DC buss voltage results in a constant Peak to Peak voltage. The pulse width modulation as described in this articular is used to vary both the frequency of the output as well as the output RMS (effective) voltage. When used for variable speed when powering an AC motor, constant torgue is maintained by keeping the ratio of the frequency to the RMS voltage constant. For a 460 VAC to 60 hertz system this ratio is 7.67 V/hz. Once the motor rated speed from a constant voltage/frequency system is reached, the motor speed can still be increased by just increasing the frequency with no further increase in voltage. This is called the constant horsepower range. Their is a limit to this as the torque decreases to a point where the motor will no longer run. An inverter and or AC variable speed drive with a 3 phase output has another advantage in that the motor rotational direction can be reversed by just reversing the phase sequence as controlled by the triggering sequence of the IGBTs.

[shinjokagama]

Wish this kind of illustrative teaching was available when I was in the school.

[adrianvintila]

Had an inverter in the truck for ages. Never knew how it worked. Thanks for the video

[mikechiodetti]

I remember learning this in some electronics courses. The Toyota Prius hybrid had been using LARGE IGBT's for it's 3 phase motor. Napa Auto Parts training side had a fantastic course explaining how it all worked and more that was built into the system. Of course this video answers questions much better than the books I've read, and I thank you for this. If anyone is learning about DC to DC and DC to AC inverters and converters. That Napa course will give a lot of info, but this video is the start! I'm assuming people that see this video understand the basic theory that "When magnetic lines of force cut across a conductor, a voltage is induced in the conductor and current (electrons) can flow."
Without this "working theory, " we'd never have the great electrical and electronics we have now!

[oOcitizenOo]

Within one video you covered lots of topics and explained everything in a very simple language - this is what modern books and lecturers can't do
Thanks for your work. 've been a proud subscriber of your channel since 2016
Look forward for more engines, electricity and electronics stuff explained

[Dexerion]

I have an BS in EET and this video would have REALLY been helpful to me about 20 years ago. Wow amazing communication and visuals. Just great work.

[xanderthunder]

Amazing! You can explain extremely well and put a lot of work in this video! Appreciate it thanks you so much.

[inventor]

I'm an Electronics Repairman nice to meet you and enjoy your videos! thank you share!

[cyfiatechnologies]

This is the first time i am saying thank you to a youtuber

[thomastaylor]

Best video ever. Definitely going into my saved Electrical Theory Playlist.

[alexmccabe]

I’m a pilot, just started flying as second in command of a Hawker 400 which has a much more complex electrical system than what I’m used to. So I came here to learn about inverters. Thanks👍🏼

[ulrikcaspersen]

Great video and explanation.

One side note: Sometimes it might be difficult to get hold of a 3-phase inverter or an inverter capable of outputting the amount of power required. Therefore, some manufacturers offers inverters that can be connected in parallel to get more 2 or 3 phases instead of one, or in series to get more power (as in more Amps or Watts), or even combined in parallel and series to get perhaps 3-phases at 32 Amps instead of 3-phases at 16 Amps. But please be aware that only some manufacturers offers these solutions, and also that it is usually required that the inverters can communicate through perhaps a CAN network.

Another side note: You mention inverters outputting square vawe AC and modified sine AC. Please aware that there are also som inverters which output "pure" AC; ie. with very few or no ripples and a pattern when viewed on an oscilloscape virtually indentical with what you will get from something like a wall socket. Also, some devices like certain electronics might be unstable or even be damaged if used with square vawe or modified sine AC.

[KurtRichterCISSP]

Feels like IGBTs are the secret sauce and we don't know what that stands for let alone the physics behind them. Of course I'll hit Google, but might be nice to include. But still, neat video. Thanks!