| Electronics > Projects, Designs, and Technical Stuff |
| Single phase to three phase sinewave converter |
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| Yansi:
Because you have not seen something, does not mean that it is not true. Especially if someone, who lives there (you do not and hardly to believe you ever did) for his whole life, has formal education and a degree in power electronics and is professionally qualified (although for not so long) to work on mains installations and appliances, should know better than you, how mains distribution and networks look here like? And yes, I insist upon what I have said. The need for rotary phase converters is completely unheard of here. And also yes, the distribution of electric power and the general technical level of electrical installations in the US is way behind what is available and commonly used and done in the central EU (but it seems, it is also valid for Spain?). Please accept that as a fact. No offense, just stating facts. You just seem offended, that I use stronger language, when calling out things with names. But please rest assured, that I do this regularly, independent of the topic. You may like it or not, but please do not try masking your nonexistent arguments behind me using a strong language to call things out. The only rotary converters that has been in wide use in our country (and very likely all our neighbors) and some of them are still in use, are ward-leonard type of drive systems, which are mostly used for quite different tasks, than making 3ph from 1ph. Even IanB has told you, that central/east Europe uses 3ph as a standard, but you just seem to selectively ignore that. Now I will ignore YOU because we have already made enough mess in this thread, and I am not willing to deal with people like you (who know everything and been everywhere) any longer. |
| Yansi:
--- Quote from: sanwal209 on January 14, 2019, 08:58:47 pm ---Sorry folks for late reply, I had fever. Let me write down brief requirements. So We developed a device which does testing coils of diesel generator. While testing there is a point when generator have to be off due to certain requirements and to continue testing we need to feed 3 phase AC to the coils of generator. Attached is rough block diagram. Problem is we dont have time to develop inverter which is controlled by micorcontroller. it will require alot of firmware development. Our best bet would be a SoC or IC which takes downgraded mains supply and generates 3 phase output which is synced with input mains. --- End quote --- Thank you for the image and sorry for the mess in this thread. Could you please explain the process, in which you feed 3x220V into the generator coils? What is it supposed to do? I can't figure out which test would need a very weak (100mA?) threphase synced supply. Do you test the control electronics with it (hence just the small current required)? |
| sanwal209:
We only want the control boards to think that there are voltages present on the coil. We only require small current for it. |
| CatalinaWOW:
Wouldn't a small transformer do the job? |
| sanwal209:
Transformer how? |
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