How amazing AC-coupling works in Deye/Sunsynk inverter - limiter works using frequency, perfecto!

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‪@ModernUkrainianHomestead‬
Guys, due to my situation of living in Ukraine, and having constant grid power supply issues, due to the freaks that attacked my country - I am able to show you a lot of tests in real life. And those are the tests that even the provider/manufacturer of this inverter is never ever showing you.
So here is the thing.
Deye 10kW 3-phase hybrid inverter is AC-coupled through the GEN-port (which works in MicroInv Input mode) with Huawei 3-phase grid-tie inverter of total 22kW power production capability.
Deye itself has 12.5 kW of panels on it, Huawei has 30.3 kW panels on it.
How exactly does it work - it limits the intake from the AC-coupled device using "frequency brakes", upping the frequency to 50.2, 50.3, 50.4 or 50.5 it applies slow braking for the coupled device. and once it reaches the battery full status - it just cliks, and relay turns the MI input off. It will get back on once there is either grid back, or if the battery drains down to 95% in an off-grid mode.

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5 июн 2024

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Комментарии : 34

@garys-half-baked-offgrid-dream Месяц назад

You're an inspiration!!! I have some catching up to do to get to your level, but I am amazed at how much I can generate and consume in a house with 3 old pensioners, me and an EV. My SoFar HYD-EP inverter acts as an AC coupled as well, it's awesome how it charges from multiple sources of generation. Love from Scotland and Screw Tooting Poo'tin!!!

@ModernUkrainianHomestead Месяц назад

thanks, mate! what kind of EV do you have? are you happy with it? proc? cons? I am starting to look at that option as well I guess.

@garys-half-baked-offgrid-dream Месяц назад

@@ModernUkrainianHomestead Hi ya, It is the Skoda Enyaq IV80, It Is lovely, Booming Stereo, Big Battery with great range, very big boot for wheel chairs and mobility scooters. Handles good with very little body roll for its weight, it's comfy and super easy to drive. Our first EV the MG ZS and it was a nightmare in comparison. This Skoda has converted me, not to save the plant, save the petrol for my Motorcycles lol. Oh one really bad on hinge is the Lane Assist function.... It panics and snatches at the wheel, it is far too intrusive and the option to turn it off is buried balls deep in the menu screens. Hope this helps mate. Slava Ukraini!

@ModernUkrainianHomestead Месяц назад

Glory to the heroes! Does your Skoda have any so to say levels of lane assist intrusion?

@garys-half-baked-offgrid-dream Месяц назад

@@ModernUkrainianHomestead No unfortunately not, it is on or off. On as default Euro Nanny rules 🤬

@ModernUkrainianHomestead Месяц назад

okay, got you

@hispex 19 дней назад

I really like the comments and discussions on your channel. Sorry, I can't add anything meaningful on the topic yet. Good luck!

@ModernUkrainianHomestead 19 дней назад

no worries, everything comes in its certain time

@lyanperez003 4 дня назад

This is a great video. I just want to confirm that while the Micro Inverter(Grid Tie Inverter) is charging the battery with MI export to Grid Cutoff ticked on, will the Hybrid inverter continously produce power from its own solar panels to provide power to home loads? Assuming that there is plenty of appliance turned on. In the video, there is a small amount of home load being used so I don't have a reference. I appreciate your answer. Cheers!

@ModernUkrainianHomestead 4 дня назад

Deye manages the power form all the sources it has, including those AC-coupled. It can sell it to the grid, or cannot sell it to the grid. If the "selling first" is the working more - than it will sell, regardless of the checkbox status. If the working mode is "zero export to load/CT" - and if the checkbox is ticked - it will not allow selling power from MI input to the grid. about load - that's summer, so there is the little usage in general (18-20 kWh per 24h). in winter there will be times when 6-9 kW of load is visible (40-80 kWh per 24h for heating only).

@bermudatriangle2036 Месяц назад

we need affiliate links for the sales.

@ModernUkrainianHomestead Месяц назад

well, the best to get it is to find it through your local dealer. or to buy directly on Alibaba.

@erik7853 29 дней назад

How are the nuclear power stations doing in Ukraine? Heard that they are preparing them for winter maximum output

@ModernUkrainianHomestead 29 дней назад

yes, current outages are exactly because of the preparations and technical maintenance campaign on the atomic power stations. Next week will be much better, since tomorrow they put 1 nuclear block back to work. but in a week they will stop another one for maintenance, and so on, after all of them receive proper yearly maintenance. but people had finally woken up, everybody who can - installs a hybrid inverter + batteries, and those who have a place to mount solar panels - do this. it is a nightmare, since actually all the inverters and batteries are already sold out, so are the panels, and even more - the supplies that are on the way - are also sold until October supplies... I guess, it will also help a lot in general, despite solar does not produce a lot in winter.

@Bripromo 19 дней назад

Hi, are you off the grid? I was told micro inverter's cannot work without the grid?

@ModernUkrainianHomestead 18 дней назад

I'm on-grid normally. and my microinverters for wind and battery (as well as the big 20kW 3-phase grid-tie string solar inverter) work perfectly in both cases - if there is grid, and if there isn't grid. once Off-grid - I use Deye's AC-coupling mode, when the grid-tie inverters are supplied to the GEN-port which works in the MicroInv input mode. In this case Deye created them a local microgrid, where they keep operating even if I am completely off-drid

@jojoowumanmensah1733 21 день назад

I think you need more batteries

@ModernUkrainianHomestead 21 день назад

indeed. +1 more is saving my friend right now, he is using it before his battery pack arrives. but eventually, the problem is that I need about 100 kWh of battery capacity, and I have only a quarter of that... to add up with Deye original is hell lot of money, to replace with Mason/Seplos is three times more cost effective, but still a lot of money... So, maybe I'll just use the DeiselGen to supply the extra once there will be no power.

@multidev2 9 дней назад

Can you input single phase to Deye 3phase GEN Port?

@ModernUkrainianHomestead 9 дней назад

yes, you can. my wind turbine grid tie inverter is a single-phase as is sent to the AC-coupling as well. moreover, you can combine them as many as you want, and combine three-phase with single phase. all you have to worry about is that the total capacity of those AC-coupled devices does not exceed Deye's transit current requirement (in my case 45A for each phase).

@multidev2 5 дней назад

@@ModernUkrainianHomestead Great please kindly help me. How to Install single phase to GEN port 3 phase? - I have single phase L N G - I connect L to L1. N to N. G to G. But inverter show only gen voltage no gen power to charge battery or no power to Load.

@ModernUkrainianHomestead 5 дней назад

@@multidev2 are you connecting generator? or microinverter / grid tie inverter? if generator - it will not work, not possible, generator has to be 3-phase. however, there is a solution - go buy a simple cheap inverter/charger (like this one for example, 48v one: s.click.aliexpress.com/e/_DlT0MzR) and connect the generator to its AC input and this inverter/charger battery terminals to the same battery the Deye uses. then you can manually run the single phase generator to charge the batteries, when you see that there is lack of grid and sun and if the battery is getting drained. if you are trying to connect a single phase GridTie Inverter (wind, solar, does not matter, just has to be the grid-tie one) - just do as you said - connect L to L1 (or L2, or L3, whatever), N to N and G to G and it will work.

@multidev2 5 дней назад

@@ModernUkrainianHomestead I have hoymile micro inverter single phase to connect main consumer (home A load). I connect line L N G from home A to Deye 3 phase Home B. It is not work. I am thinking to direct connect LNG from micro inverter not form main consumer. Please help.

@ModernUkrainianHomestead 3 дня назад

no, you don't have to connect the microinv on the Deye load side (at least it's better not to do so without a limiter). connect the microinverter to the Deye's GEN-port terminals. and set up the GEN-port to be working in MicroInv Input mode, do not forget also to set properly the on/off values. there are many video-instructions on Deye official youtube channel

@mortenwinslw2785 Месяц назад

How big is your house? 100KWh a day is a lot. You should probably check for leaks and isolate your house better.

@ModernUkrainianHomestead Месяц назад

No leaks possible, as there are no water transfer lines. I use ceramic heaters which are low-consumption (6kW max instant consumption for the whole house). The house itself is quite big, 300 sqm, also, the 100kWh is only for the days when it's -15-17 Celsius outside. If it's around 0 Celsicus - the consumption for heating only is roughly 55-60 kWh. Monthly heating usage was 2300 kWh so far max (in January 2024). And well, truth is that I have not finished the insulation yet, two small things are still left to be done - the bottom part of the concrete foundation is not insulated at all at the moment, I am starting on it this month though. And also on the underroof floor there are several places where I have to apply additional 200mm mineral wool insulation, that's also the next step to help with reducing the heat loss.

@mortenwinslw2785 Месяц назад

@@ModernUkrainianHomestead I was thinking about air leaks

@ModernUkrainianHomestead Месяц назад

ah, yes, well, the ventilation is the main one... Everything else is pretty nicely sealed. If you will calculate the losses, they are great actually, given my walls and windows surfaces. 100kW per day, means 4200 kW of electric energy consumed, means, there are 4000 watts of thermal energy losses each hour (on average). And now the surface area of the windows and walls combined is 295 sqm, which results in 13.5 watts of thermal energy losses per sqm (walls and windows), and well, since the floors sqm of the house are about the same as well, it is realistically 5 times less than what is considered to be normal (80 watts of heating power for 1 sqm of room area for example).

@mortenwinslw2785 Месяц назад

If I do your calculation on my house that are in the Nordics then I have a heat loss of 4W sqm, so there are definitely room for improvement in your house.

@ModernUkrainianHomestead Месяц назад

let me guess - you have a heat pump? and liquid based heater-tank system then transferring heat to the radiators or to the heated floor system? correct?