Woodward easYgen-2000 Series User Manual page 297

4.5.12.7.1 Mains Parallel Operation With Mains Interchange Real Power Control (Import/Export)
4.5.12.7.2 Isolated Operation In Parallel
Example
37535B
Configure Application > Configure Controller > Load Share Control
The easYgen controllers maintain the real load level on the individ‐
ually controlled generators at a level so that the real power setpoint
at the mains interchange remains at the configured setpoint. The
real power setpoint for the mains interchange must be configured
identically for each easYgen.
The easYgen controller communicates with other controls in the
system via a CAN bus. This enables the controllers to adjust the
real power generated by the generator while remaining within the
rated power of the generator. A smaller generator will contribute
less real power as compared to a large generator, but they will
both be utilized to the same capacity factor. An example of this
would be a 100 kW generator with a configured 1000 kW generator
and a mains interchange of 825 kW. The 100 kW generator would
contribute 75 kW and the 1000 kW generator would contribute
750 kW or both generators would be at 75 % of their rated
capacity.
Reactive load sharing is not performed when operating in parallel
with the mains. The reactive power control will be defined by the
configured power factor setpoint of the individual controllers. If the
power factor controller setpoint is configured as +0.950, the
easYgen will proportionally share the real load with all generators
in parallel with the mains while controlling the reactive power at a
0.95 inductive (lagging) power factor regardless of the what power
factor the mains is operating at.
The parameter "Active power Load share factor" (param‐
eter 5530 Ä p. 301) can be used now to define the priority of the
real power sharing reference variable (real power at interchange).
A higher configured percentage influences the control more
towards maintaining the real power setpoint for the interchange. A
lower configured percentage influences the control more towards
maintaining real power sharing between units.
The parameter "React. power Load share factor"
(parameter
The easYgen controllers maintain the voltage and frequency of the
individually controlled generators at a constant level. This makes it
imperative that the voltage and frequency setpoints are configured
identically for each easYgen.
The easYgen controller communicates with other controls in the
system via a CAN bus. This enables the controllers to adjust the
real power generated by the generator while remaining within the
rated power of the generator. A smaller generator will contribute
less real power as compared to a large generator, but they will
both be utilized to the same capacity factor.
An example of this would be a 100 kW generator and a 1000 kW
generator with an 825 kW load. The 100 kW generator would con‐
tribute 75 kW and the 1000 kW generator would contribute
750 kW or both generators would be at 75 % of their rated
capacity.
The reactive power will be shared proportionally among all genera‐
tors involved.
easYgen-2200/2500 | Genset Control
5630 Ä p. 302) has no influence here.
Configuration
297