Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

The weather we have now is conducive to peak records. The sun is already high, outside temp. quite low and when the Sun leaves the clouds, the momentary peak is 110% of the installation's power. I have optics at home and I have a preview of individual panels and in the last days the power of the panels in the peak was even 405W, fullblack panels with a power of 355W STC.

Aha - I did not know that it could be more than nominal - because I am doing 15% more.
Admittedly, there were clouds every now and then, and it was overcast during the hottest hour. It's like the sun, it might even show with 8.2.

I have 3.96kWp in the panels and recently I have seen 4.4kW in peak several times.
And 4.4kW, because I have 4kW inverter, which can give a maximum of 4400W. The panels themselves were 4557W, which is just 15% more than their rated power

does the application work for you?

Yes, it works

Hello, does anyone have a problem with the inverter turning off constantly after a new update?
How to set the inverter to make it work normally?

DemonKas wrote:

Hello, does anyone have a problem with the inverter turning off constantly after a new update?
How to set the inverter to make it work normally?

Hey I am seeing a similar problem after installing 142. I wrote about this a few posts before. In addition, on the same day when I was updating the software, Tauron was messing with the medium voltage transformer.

I haven't tried to downgrade yet.

Is the firmware upgrade to 142 causing too high voltages on the phases? Something stinks here ...


@DemonKas What are your voltages on L1, L2, L3 during the hours when the inverter reports errors? Of course, with good sunlight ...

gitpusher wrote:

Is the firmware upgrade to 142 causing too high voltages on the phases? Something stinks here ...
@DemonKas What are your voltages on L1, L2, L3 during the hours when the inverter reports errors? Of course, with good sunlight ...

Hi,

next to the chart:



on the FusionSolar page in the alarms tab, I only see two overvoltage fault alarms.

You can try to correlate the lows with what the inverter sees on each of the phases in the application, but the problem is that the report is in intervals of 5 minutes: - /

I have a tasmote on one of the vases and you can clearly see on the chart that I'm reaching 253:



I generally focus on the weather, cool with a strong sun, additional installations in the area and burying Tauron by the transformer. I have already written a letter to them on this matter.

But the topic of this software is interesting. In March I had bigger productions and even the pickups were better and the inverter didn't shut down. From April 6, I have an average of a few shutdowns per day and today, in mega weather, there are more of them. [/ Img]

Tauron wrote to me like this:

good morning,

thank you for your message. In this matter, please contact the micro-installation installer, who will check the compliance of the micro-installation inverter settings with the requirements of TD SA, which are available on the website. It is the "Connection to the network" tab, the "Network connection" tab, the "Micro installation - tab" connection to the network ", tab" Prosument ". Step 2: Installation of micro-installations "Set of technical requirements for micro-installations".

The installer should verify that the micro-installation has the reactive power regulation mode activated (its activation has a positive effect on voltage stabilization in the network and should result in a reduction in the number of micro-installation shutdowns).

If the situation does not improve after the Installer has verified the micro-installation of the inverter (especially in terms of activating the reactive power control mode), you may ask for the verification of the voltage in the network. For this purpose, please fill in and send the ZUDk application. We remind you that you may bear the costs of the notification if the network parameters are correct. If the examination reveals any irregularities, you will not incur any costs.

You can find the document on the website

How to provide the documents:
o in the form of a scan on
o through our service, My TAURON.

We encourage you to use the free e-invoice. You will receive an e-mail notification of the invoice amount and payment date. Thanks to this, you can control your invoices and payments on an ongoing basis in a convenient and safe way in our service, My TAURON.

If you have any additional questions, we remain at your disposal.

And on the Tauron website there is such information:

Turning off micro-installations does not mean that our network or the micro-installation itself is working incorrectly. This is the correct operation of the micro-installation.
The micro-installation switches off when the voltage in the prosumer's installation is too high and could damage it. In this way, micro-installation protects not only itself, but also other devices in the house from damage.
The protection should only trip when the voltage rises above the value permitted by law [2]. According to them, the voltage value should be within the deviation range of ? 10% of the rated voltage, that is:
for a voltage of 230 V, the value in the range 207 V - 253 V,
for a voltage of 400 V, the value in the range of 360 V - 440 V.

To limit the shutdown of a micro-installation, you can adjust its settings. Only its installer can do this. He should first check whether its settings comply with European law [3] and the requirements of the Distribution System Operator [4]. If the settings meet the requirements and the micro-installation continues to shut down, the installer should enable the reactive power control function.
It can start it in one of three modes: reactive power control as a function of voltage at the generator terminals (Q (U) mode as the basic mode,
power factor control as a function of active power generation (cos ? (P) mode) as an alternative mode,
cos ? constant, adjustable from cos ? = 0.9ind to cos ? = 0.9 room, as an additional mode.

The installer should check and select the mode in which the micro-installation will work properly with our network. Ifhowever, reactive power control in any of the three modes will not reduce the number of micro-installation shutdowns, the installer should check the possibility of setting the operating mode: reducing the active power generated as a function of voltage increase (P (U))

The micro-installation will then limit the generated power, thanks to which the voltage in the Prosumer installation will not increase, and the micro-installation will not switch off. This will guarantee greater efficiency of the micro-installation. It is important that this function works only after exhausting the possibility of voltage regulation with reactive power consumption in Q (U) mode, ie above 1.08 Un. The installer must also pay attention that this function does not cause abrupt changes in the active power generated by micro-installations.

Someone will tell you where and how to change it in the settings ????

Added after 4 [minutes]:

xszuflax where to check these jumps?
In general, fusion solar has stopped working for some time
shows off line installations
I can only check what and how by connecting to the inverter

DemonKas wrote:

Someone will tell you where and how to change it in the settings ????

These things are changing on the inverter in the reactive power compensation settings. I am set to cos phi 1.0 rigidly.

DemonKas wrote:

xszuflax where to check these jumps?
In general, fusion solar has stopped working for some time
shows off line installations
I can only check what and how by connecting to the inverter

In the application, the "Device management" section at the bottom> Select the inverter> "History - info" then in the lower half you select the Signal type and signal points on V and add 3 phases.

It looks like:

Hello
I am from Wrocław, 6.88kWp installation, mounted on the roof, south. (from March 2022)
I also have problems with too high mains voltage. (OSD - Tauron)


However, the day of April 14, 2022 was specific. (I also noted a lot of inverter shutdowns)

Tests the settings of Q (U) voltage increase suppression (P) ... (the above exclusions just with the Q (U) function did not help much)

Software Version: V100R001C00SPC141

As long as you do not measure the voltage in the network yourself, it is a question of the version number. Maybe it actually exceeds 253 volts and that's it. Then you can only write to Tauron and not rummage through the settings.

szczukot wrote:

As long as you do not measure the voltage in the network yourself, it is a question of the version number. Maybe it actually exceeds 253 volts and that's it. Then you can only write to Tauron and not rummage through the settings.

Hi,

to be clear: I am 99% sure that it was Tauron that set the voltage too high when they worked on the transformer. I have a little easier negotiation because I have data from before 6.04 and after and in a way I can prove my thesis. The question is whether I will find someone who wants to or some support worker who will flood me with default answers.
I am not an electrician but I do not think that the reactive power compensation parameter could have such a significant impact on the active voltage. Of course, before 6.04, everything was working with the same settings.

1% I left an software because on the same day I changed it to 142 but I saw that my colleague Yorkus has 141 and also a lot of shutdowns.
I think that cold days and the intertwining of clouds / sun also have an impact, which causes jumps to the maximum installations, especially roof installations.

szczukot wrote:

As long as you do not measure the voltage in the network yourself, it is a question of the version number. Maybe it actually exceeds 253 volts and that's it. Then you can only write to Tauron and not rummage through the settings.

After all, Tauron himself provides guidelines to limit the exclusions of micro-installations.

First of all, you should provide the reactive power compensation settings (in the ZDU-k application). If cosfi = 1, it refers to changing the parameters to Q (U) P (U); the next step is to check the voltage in the network - at the request of ZDUk, they install a measuring device for 7 days.

As I wrote above, I check the Q (U) P (U) parameters together, if the inverter continues to turn off, I submit an application for measuring the voltage in the network.

In general, there are too many installations.

PS I have intelligent Tuya zigbee sockets - and they are not working pow. 250V they turn off, Can you reprogram them somehow?

Yorkus wrote:

PS I have intelligent Tuya zigbee sockets - and they are not working pow. 250V they turn off, Can you reprogram them somehow?

I suppose that a lot can be done in the settings, because on these sockets people make an artificial load that "helps" in situations of too high voltage:



Added after 35 [minutes]:

xszuflax wrote:

szczukot wrote:

As long as you do not measure the voltage in the network yourself, it is a question of the version number. Maybe it actually exceeds 253 volts and that's it. Then you can only write to Tauron and not rummage through the settings.

Hi,

to be clear: I am 99% sure that it was Tauron that set the voltage too high when they worked on the transformer. I have a little easier negotiation because I have data from before 6.04 and after and in a way I can prove my thesis. The question is whether I will find someone who wants to or some support worker who will flood me with default answers.

Honestly, I think your data / graphs will unfortunately be the least interesting for them ...
A friend from my town has had a positive experience with Tauron. The voltages "scrubbed" him in the upper limit during the day, but the inverter did not turn off yet, although it was close. Probably the intervention of a neighbor (no details) did the trick, because they came to the trafo and reduced the voltage - it turned out about 10V less and it can be seen nicely on the charts:

Tauron, of course, protects itself and tells you to set power compensation on inverters, but you have to bear in mind that this temporary solution and with the most "aggressive" option causes a reduction in the energy transferred to the grid (although on the other hand it may also be better that the inverter gives even less but does not turn off). I also think that Tauron does not have the technical possibility to check how the inverter is actually set - well, unless some limited technician from Tauron comes across and wants to see it - but somehow I cannot imagine such a situation (apart from the fact that it is always going to drop it for an installation company). After all, the customer does not need to know the inverter settings.
So in general, it is definitely better for Tauron to handle the topic on luck than if we have to rummage in inverters. But you know how it is ...

I wonder if it is not better in such situations to simply "hit" the emergency services when the voltage is too high. To deal with it by this bureaucratic machine of such a juggernaut is a torment ...

Anyone have any experience / feedback on this issue in the case of Tauron?

You really can't just measure the tension?

ps. By the way, my voltage is 235V at night. This is actually too much by chance. And theoretically, I could even report it. Fortunately, during the day it is quite sunny / cool and it reaches the max of 245V. So I have some more to 253V and it does not turn off.

xszuflax wrote:

DemonKas wrote:

Hello, does anyone have a problem with the inverter turning off constantly after a new update?
How to set the inverter to make it work normally?

Hey I am seeing a similar problem after installing 142. I wrote about this a few posts before. In addition, on the same day when I updated the software, Tauron was messing with the medium voltage transformer.

I haven't tried to downgrade yet.

Is a downgrade of Huawei inverters possible at all? You know how to do it? For me, the frequency of reboots increased after updating to version 141, previously I had 1, maaaax 2 a day, now I have 6-8 and there were also 14. I would like to go back to version 139

bladesss wrote:

xszuflax wrote:

DemonKas wrote:

Hello, does anyone have a problem with the inverter turning off constantly after a new update?
How to set the inverter to make it work normally?

Hey I am seeing a similar problem after installing 142. I wrote about this a few posts before. In addition, on the same day when I updated the software, Tauron was messing with the medium voltage transformer.

I haven't tried to downgrade yet.

Is it possible to downgrade Huawei inverters at all? You know how to do it? For me, the frequency of reboots increased after updating to version 141,

previously I had 1, maaaax 2 a day, now I have 6-8 and there were also 14. I would like to go back to version 139

It is possible, I just did it via www. I also had a lot of exclusions from 142 ...

domelek wrote:

bladesss wrote:

xszuflax wrote:

DemonKas wrote:

Hello, does anyone have a problem with the inverter turning off constantly after a new update?
How to set the inverter to make it work normally?

Hey I am seeing a similar problem after installing 142. I wrote about this a few posts before. In addition, on the same day when I updated the software, Tauron was messing with the medium voltage transformer.

I have not yet attempted a downgrade.

Is a downgrade of Huawei inverters possible at all? You know how to do it? For me, the frequency of reboots increased after updating to version 141,

previously I had 1, maaaax 2 a day, now I have 6-8 and there were also 14. I would like to go back to version 139

It is possible, I just did it via www. I also had a lot of exclusions from 142 ...

And how after uploading 141? Do you have any reliable results? In Wro, the weather has changed and it's not much to compare. I changed the reactive power compensation to a constant value of cos phi 0.9 from 1.0. I only tested in the afternoon yesterday but these are not reliable results.

I wrote to the Huawei website, maybe they will come up with something,
What I noticed is that after the update, the network changes to PL
before that it was only German, maybe that's a problem because I changed the network to Czech
And on Sunday I only had an HRTV error twice

DemonKas wrote:

I wrote to the Huawei website, maybe they will come up with something,
What I noticed is that after the update, the network changes to PL
before that it was only German, maybe that's a problem because I changed the network to Czech
And on Sunday I only had an HRTV error twice

I don't think that I have EN50549-PL set from the very beginning and until 141 it was OK. Generally, the subject of the software is interesting, but IMO is to blame for a poor network and optimal weather configurations. Maybe my friend domelek will tell us something.

BTW, does anyone have release notes from 142. Unfortunately, only registered installers have access to these documents on the Huawei website: - /

I did a downgrade this morning but there was no sun so so far it's hard to tell, but the last 2 days was a drama.

xszuflax wrote:

BTW czy ktoś ma release note-y z 142. Niestety dostęp do tych dokumentów na stronie Huawei maja tylko zarejestrowani instalatorzy :-/

New Features
1. Added PID nighttime repair function when the output is with TF.
2. Added Oman grid code, which is suitable for M1 models of 3-10kW and M2 models of 12-20kW.

Optimized Features
1. Improves the optimizer log export success rate.

4.1 Resolved Issues
1. Solved the related problems of HVRT/LVRT of Pakistan grid code.
2. Solved the related problems of HVRT/LVRT and frequency change rate protection of NTS grid code.
3. Solved the problem that the PV string has no input power when the maximum open-circuit voltage is less than 560 V and the inverter works in off-grid mode.
4. Solved the problem of probabilistically falsely reporting the output overload (2077-1)" after the mppt multi-peak scanning was triggered duringš operation.
5. Solved the problem of low probability falsely reporting the "abnormal PV module configuration (2080-3)" when the optimizer is searching.
6. Solved the problem that the inverter does not execute the parameter of "grid connection delay after grid recovery" after grid fault recovery.
7. Solved the problem that the battery cannot be charged and discharged when the battery SOC is lower than the End-of discharge limit and the heating or logic is triggered after the inverter is upgraded to V100R001C00SPC140.
8. Solved the problem of abnormal display of grid charging power in Fusionsolar web interface.
9. Solved the problem of since version V100R001C00SPC136 and above, when the closed-loop controller is the inverter, and the communication disconnection failure protection is enabled, the output power of the inverter is probabilistically limited after restarting.
10. Solved the problem that when the SmartLog3000 is used with the LUNA2000, the inverter output power is limited when the battery is abnormally offline and it works in forced charging and discharging mode.

DemonKas wrote:

I wrote to the Huawei website, maybe they will come up with something,
What I noticed is that after the update, the network changes to PL
before that it was only German, maybe that's a problem because I changed the network to Czech
And on Sunday I only had an HRTV error twice

The German standard has a higher voltage limit, people just often change to German or Czech to eliminate the problem with exclusions

Added after 1 [minutes]:

domelek wrote:

I did a downgrade this morning but there was no sun so so far it's hard to tell, but the last 2 days was a drama.

What version of the downgrade did you do?

bladesss wrote:

The German standard has a higher voltage limit, people just often change to German or Czech to eliminate the problem with exclusions

Well, this is the common opinion that the German one has a higher limit. I tried to reach these standards some time ago and from what I remember, the 253V limit was the same for Poland and Germany. Czech is probably a fact above.
But someone would have to comment and confirm it ...

bladesss wrote:

DemonKas wrote:

I wrote to the Huawei website, maybe they will come up with something,
What I noticed is that after the update, the network changes to PL
before that it was only German, maybe that's a problem because I changed the network to Czech
And on Sunday I only had an HRTV error twice

The German standard has a higher voltage limit, people just often change to German or Czech to eliminate the problem with exclusions

Added after 1 [minutes]:

domelek wrote:

I did a downgrade this morning but there was no sun so so far it's hard to tell, but the last 2 days was a drama.

What version did you downgrade to?

Until 141, I didn't have such circuses there

@domelek and how was it possible to test 141 in Sieradz yesterday?

What I noticed from 142 is that not every drop in output generates an overvoltage error. Those that generate usually cut production for 1-3 minutes. You can see it on the inverter because the yellow and red LEDs are blinking. Yesterday I had 5 drops in production and not one of them generated blinking LEDs.

It is definitely better, but there has not been a cloudless day yet and it's hard to say something 100%, so far I'm improving the algorithm for turning on the heaters, which are to compensate for the increase in voltage in the network, unfortunately the neighbors evidently have their installations turned up ...


There are much less drops to zero (only), but this is also thanks to the heaters.
And I added additional cooling, we will see what impact it has on the efficiency of the inverter, I will test, because I can make a temp vs efficiency graph ...

xszuflax wrote:

@domelek and how was it possible to test 141 in Sieradz yesterday?

What I noticed from 142 is that not every drop in output generates an overvoltage error. Those that generate usually cut production for 1-3 minutes. You can see it on the inverter because the yellow and red LEDs are blinking. Yesterday I had 5 drops in production and not one of them generated blinking LEDs.

What are these settings for active power reduction in the inverter?