Complex power

1. Jul 2, 2010

chopficaro

power=P+P(cos(2wt))+Q(cos(2wt))

but

complex power = P+jQ

am i to assume that complex power is a phasor representation of the last two terms? why does this formula ignore the first term?

2. Jul 2, 2010

chopficaro

and aparently it is also equal to

complex power =(Veff)(Ieff)

which is a scalar, but its also equal to

complex power=(Vphasor)(Iphasor)/2

which is a phasor

how can complex power be both a phasor and a scaler?

3. Jul 2, 2010

dlgoff

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/powerac.html" [Broken]

Last edited by a moderator: May 4, 2017
4. Jul 2, 2010

chopficaro

it did! tyvm!

5. Jul 4, 2010

sophiecentaur

Surely Electrical Power is the Dot Produce between the V and I vectors. A dot product is a scalar.
What could "jQ" be? I and V may not be in phase but what has that to do with "complex power"? Is there some problem with actual terminology here?