HOW INVERTER DRIVEN COMPRESSORS WORK

How does an inverter driven compressor work? Our GREE tech advisor offers you a simple explanation with help from this animated visual diagram. From line voltage to the bridge rectifier, current flow to capacitors, DC buses to IGBT’s, and from the inverter board to thermistors, this step-by-step introduction to inverter technology breaks down what’s really going on inside an inverter driven system.

Once you understand how inverter technology works, it becomes clear why GREE is simply the best in cold climate heating and efficient air conditioning.

[amirhesamnoroozi]

Perfect 👌 answered my question: Why we need an inverter when the supply power is already ac? And what a variable speed device has to do with an inverter?

[vadimtyutyunnik]

Finally, a clear explanation.
It's similar to Pulse Width Modulation.
Some manufacturer put on their comressors 100-360VDC and 40-120Hz. I would ask them to draw the graph for me, which would reflect 100VDC 100Hz.
How a sine wave could be called a "direct current" or how the straight DC could have any frequency. As soon as DC gets any frequency, it becomes AC.

[olisahopene]

thanks for the explanation, it has given me a broader understanding of the inverter systems, and doubt about inverter AC applications.

[USA-GreedyMenOfNoIntegrity]

Excellent. Keep these great videos coming. Thank you.

[ChonieMonsanto]

thank you sir for the short video and i got an idea for this topic, and happy to see more videos for your next simulation presentation.

[ayawkolmxvi]

Good day sir what if i will use a adapter? to the specific voltage of my compressor, , thank you in advance sir..

[NROhvac]

It’s important to note that these compressors vary the speed based off of load. These units must have smart equipment installed with it, it all communicates. If the load is great inside the house, the compressor will increase speed. Also there is humidity involved as well, but it’s all logic controlled by the boards. These boards from the outdoor, thermostat, relay panel, and indoor all communicate thru data wire. This data wire tells the indoor fan and outdoor compressor what speed to run at based off load (load is measured by the thermostat). Essentially, if the house is 74 and your setpoint is 72, your compressor and indoor fan will back off a bit. If it’s 78 inside and you set it to 72, you will potentially see your compressor and indoor running at full speed or close to it. There is humidity control as well that factors in I believe, correct me if I’m wrong. But to any of you who are confused on the determining factors that drive the speed, it’s the load which is communicating thru a data wire

[TOSOTsuppliesSharing]

splendid animation for explain. Thank you

[kevin]

Great teacher. Hey teacher, in your experience/opinion how reliable are these DC Compressors going to be? I got 23 years on my ol' Bryant Heat Pump so far in Florida...

[mooch]

Thanks for the video Greg. Where can one find information about the programming of the board (specific to the Flexx) to understand the speed control and cold climate heating control for the purpose of troubleshooting operation? The service manuals are light on any helpful detail of the control strategy. Thanks!

[mobilecommunicationsnetwor]

So just for clarification then this is a variable speed three wire or three phase DC compressor?

[laidbairech]

If I try the compressor and inverter with the, variaiteur de vitesse it work?

[herseem]

There's an error in the animation: You show the current flowing the wrong way through one of the transistors. I think what you meant was that the switch is engaged to allow current to flow down INSTEAD of through the diode that is in parallel with it the wrong way, and the current flows back up through the diode the correct way instead of the switch it is in parallel with.

[ytSuns]

Any chance I could use solar directly. 300+ volts isn’t a problem . It’s creating the frequency for speed control. I think it would be awesome to nit get involved with ac current at all .

[wadibeed]

I have question.
When the room temperature reaches to a certain temperature 25 degree the inverter slows down the speed at a percentage, but much this percent of normal speed ? 10 % or less ? when the temperature goes up again to 30 degree the inverter accelerates to high speed and stay on it until the temperature goes down to 25 degree but the speed at this point rapidly deaccelerates or takes a few seconds or minutes to decelerates to reach the 10% of the normal speed ?

[mobilecommunicationsnetwor]

What has been the reliability of the electronics? Do you need some kind of environmental packs since they're outside in the weather? What about the compressor itself any history in terms of reliability?What would be the cost of this compressor if you had to replace it?

[mobilecommunicationsnetwor]

What gas is required for this compressor? What about the oil?

[meowmeowbobo]

oh...it basically is a stepper motor with its own rectifier to supply dc power. A logic circuit or computer assisted motor with dc power.

[mrbillpurcell]

WHY can't I find the Cassette installation video? e 24, 000 btu, and even tech support could answer issues on vertical drain pump limits and s the check valve to prevent flood back, and how to use that silly cardboard template on an existing trussed and drywall lid

[MrDBWeatherMan]

So technically shouldn’t an inverter compressor technically be called a rectifier compressor?