# Frequency and load sharing of two power generating source.

#### FazlyRabby

Joined Oct 4, 2023
2
1. Consider a generator and a inverter.
2. Generator is producing power at 50 Hz and the inverter is producing power at 50.3 Hz .
3. Both of the sources are supplying a common load.
4. From which source the load will take power first?

#### MrChips

Joined Oct 2, 2009
29,855
1. Consider a generator and a inverter.
2. Generator is producing power at 50 Hz and the inverter is producing power at 50.3 Hz .
3. Both of the sources are supplying a common load.
4. From which source the load will take power first?
Neither source.
Is this homework?

#### FazlyRabby

Joined Oct 4, 2023
2
Neither source.
Is this homework?
No. Its for gathering knowledge.

#### MrChips

Joined Oct 2, 2009
29,855
Plot sin(A) + sin(B)
or look up the identity formula.

#### Ian0

Joined Aug 7, 2020
8,947
if It is a synchronous generator, then the torque vector should synchronise it with the inverter, with a small amount of phase lead, provided that it is lower power than the inverter.
If not, it’s not going to go well. . . .

#### Ramussons

Joined May 3, 2013
1,374
1. Consider a generator and a inverter.
2. Generator is producing power at 50 Hz and the inverter is producing power at 50.3 Hz .
3. Both of the sources are supplying a common load.
4. From which source the load will take power first?
3 is an impossibility. You will have a blown Generator, Invertor or both.

#### Ian0

Joined Aug 7, 2020
8,947
Alternatively, if you have an inverter that is specifically designed for that function, such as some of the Victron products, then the inverter will synchronise itself to the generator.
But then, point #2 won't be true.

#### schmitt trigger

Joined Jul 12, 2010
775
One of the basic tenets of electrical engineering goes like these:
“Thou shall not connect two AC power sources in parallel unless their frequency, voltage AND phase are identical, or thou shall be dammed by screeching wails and balls of fire, and thy soul will perish.”

#### Papabravo

Joined Feb 24, 2006
20,610
Some people are bound and determined to verify the magic smoke hypothesis. Who are we to deprive them of the small pleasures of an empty wallet with moths exiting hastily.