How does a voltage regulator work?

- A
- Al Smith
  
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posted
18 years ago

Thu, Jun 10, 2004 2:30 PM

I assume it adjusts the voltage in the field coil.
Therefore, there is no way to adjust the output
voltage of a permanent magnet generator other
than by adjusting the speed of the rotor ./?

- U
- user
  
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posted
18 years ago

Thu, Jun 10, 2004 5:00 PM

You can control the voltage by having a coil around the magnet and controlling the field by saturation. Look up saturable reactors, the principle of saturation has MANY applications.

- P
- Paul Hovnanian P.E.
  
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posted
18 years ago

Sat, Jun 12, 2004 3:17 PM

You could add some capacitive or inductive reactance to the generator output.

- A
- Alan McClure
  
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posted
18 years ago

Mon, Jun 14, 2004 4:13 PM

Look up the term "shunt regulator". My motorcycles' voltage regulator controls output voltage by shunting un-needed current to ground thereby reducing the alternators' output voltage with the IR drop internal to the alternator. The alternator is a fixed (PM) field three- phase device connected directly to a 6 rectifier full wave bridge. ARM

How does a voltage regulator work?

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