A power generating facility is designed on DC power generation, with a low RPM Dynamo, how can we convert the out put into A/C and what shall be the conversion factor
2007-11-20 00:36:50 · 5 answers · asked by starsysmzg 3 in Science & Mathematics ➔ Engineering
WHat is the voltage of the DC?
In general, you can run a motor/generator to do what you want. You should expect efficiencies of no more than 50%, most of your loss will be heat.
2007-11-20 00:45:49 · answer #1 · answered by Computer Guy 7 · 1⤊ 0⤋
This may be cheaper than a DC motor/AC gen, and can handle inputs/outputs of up to 120V at 500A, 30kW max -
http://www.avinc.com//downloads/MT-30_WS_Specs.pdf
It's both a sink and a source. Near full load, efficiency is pretty good, around 90%. We also build larger, higher-powered ones up to 900kW (the ABC-series), as well as large battery chargers.
Or you may purchase or design and build an inverter, one which, presumably, chop the DC into a high-frequency AC voltage, probably via an IGBT full-bridge, run it through a transformer, and filter the output.
2007-11-20 01:27:35 · answer #2 · answered by Gary H 6 · 0⤊ 0⤋
Rectifier diodes cannot convert DC into AC. A power supply circuit is not reversible, ie connecting a battery does not make AC come out the power plug. The only instance i can think of is sometimes tunnel diodes are reverse biased and a milliwatt or so of microwave frequency energy can be recovered.
2016-05-24 07:45:49 · answer #3 · answered by holly 3 · 0⤊ 0⤋
There are many off-the-shelf rectifiers or converters. This question has been asked since AC and DC were invented in the 1800's and it has some solid answers.
http://en.wikipedia.org/wiki/Rectifier
2007-11-20 00:52:29 · answer #4 · answered by Curly 6 · 0⤊ 1⤋
50% is a very low efficiency for a 25kW motor-generator set.
http://www.energyideas.org/default.cfm?o=h,g,ds&c=z,z,2580
2007-11-20 01:10:33 · answer #5 · answered by frothuk 4 · 0⤊ 0⤋