I have a generator that supplies 220 and 50 Hz. It often runs without load. Can I feed this back to the grid and do I need a pure sine wave or do I have to rectify it first? How do you direct alternating current to 12 volt direct current?
Or can I simply feed back to the grid directly from the generator with 50 Hrtz? (I don’t know if he has a pure sine wave but that might not matter.)
Of course I have to discuss this with my grid operator, because in the Netherlands you can only feed back 220 vx 16 amps = 3530 Watts per hour in the Netherlands.
Thank you very much for any answer.
Answer
Hi Henk,
To connect your generator directly to the grid, it must be equipped to be in-phase with the grid. This means that it must have exactly the same frequency and phase, and the voltages must also be the same at the moment of switching on.
To achieve this, you must therefore use the right generator and equipment. A second option is to use an inverter of solar panels. These work with high voltage direct currents. To convert your AC voltage to a DC voltage you need a bridge rectifier and smoothing capacitors. What you still have to pay attention to is whether the inverter can work with a pulsating DC voltage, and whether the input voltage can/may/should be grounded.
But there is something else you should consider. A generator that runs without load consumes much less than one that has to supply power. There is a very good chance that your extra consumption and the investment will cost more than what you get back.
Kind regards,
Luc.
Answered by
ir Luc Bosmans
Technology in the audiovisual sector
Industrial quay 170 B-1070 Brussels
http://www.erasmushogeschool.be/
.