The affects of Lenz's Law on Wind Turbines

Click For Summary
SUMMARY

The discussion centers on Lenz's Law and its implications for wind turbines. Participants clarify that while Lenz's Law induces a counter electromotive force (EMF) opposing the current generated, wind turbines continue to operate due to the constant supply of wind energy. Eventually, a balance is reached where the wind force counteracts the effects of Lenz's Law, allowing the turbine to maintain a steady rotational speed indefinitely in an ideal scenario with consistent wind conditions.

PREREQUISITES
  • Understanding of Lenz's Law and its principles in electromagnetism.
  • Basic knowledge of electrical generators and their operation.
  • Familiarity with wind turbine mechanics and energy conversion.
  • Concept of counter electromotive force (EMF) in electrical systems.
NEXT STEPS
  • Research the principles of Lenz's Law in depth.
  • Explore the mechanics of wind turbines and their energy generation processes.
  • Study the relationship between wind speed and turbine efficiency.
  • Investigate the effects of counter electromotive force on electrical systems.
USEFUL FOR

Engineers, physicists, renewable energy enthusiasts, and anyone interested in the operational dynamics of wind turbines and electromagnetic principles.

babayevdavid
Messages
17
Reaction score
0
Hi,

If an electrical generator induces a current that opposes the shifting magnetic field that creates it then why don't the wind turbines on wind farms just stop turning after a while? Is it because they are not directly connected or drawn on by electrical devices?

Thank you all in advance!
 
Physics news on Phys.org
babayevdavid said:
Hi,

If an electrical generator induces a current that opposes the shifting magnetic field that creates it then why don't the wind turbines on wind farms just stop turning after a while? Is it because they are not directly connected or drawn on by electrical devices?

Thank you all in advance!

Because of the wind...
 
Sure, but at some point wouldn't the wind not be enough to counteract the effects of the counter electromotive force?
 
babayevdavid said:
Sure, but at some point wouldn't the wind not be enough to counteract the effects of the counter electromotive force?

At some point you will reach equilibrium and the wind will counteract the effect of Lenz's law exactly and the turbine will simply spin at that speed forever (in an ideal world with constant current and wind supplies) .
 

Similar threads

High School Understanding & Applying Lenz's Law
  • · Replies 6 ·
Replies
6
Views
6K
Undergrad Lenz's law and instantaneous change in inductor's current
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Why is it claimed that Betz's limit is a law?
  • · Replies 30 ·
2
Replies
30
Views
3K
De-icing the wind turbines in Texas
  • · Replies 22 ·
Replies
22
Views
2K
Can I store electricity from a wind turbine directly into a battery?
  • · Replies 13 ·
Replies
13
Views
6K
Vertical wind turbine with two concentric rotors
  • · Replies 7 ·
Replies
7
Views
4K
High School Designing a current sensor for 50mA up to several dozen Amps
  • · Replies 17 ·
Replies
17
Views
2K
Undergrad Mutual inductance in a transformer
  • · Replies 16 ·
Replies
16
Views
4K
Undergrad Faraday-Lenz Law: Self-Induction in Magnetic Fields
  • · Replies 1 ·
Replies
1
Views
1K
Wind Turbine Energy Transformations
  • · Replies 10 ·
Replies
10
Views
3K