ABB TRIO-5.8-TL-OUTD-S Product Manual page 89

(*) The curve can be edited with
the Aurora Manager LITE configu-
ration software
(*) The curve can be edited with
the Aurora Manager LITE configu-
ration software
14. Reactive power
This section of the menu may be used to manage the supply of reactive
power into the grid. There are 5 possible types of management:
• No regulation: no regulation of reactive power. To enable this mode,
select Enable and then OK (using the UP / DOWN arrows)
• Cos-phi fixed: Sets the power rating to a fixed value. To enable this
mode, select Enable and then OK (using the UP / DOWN arrows) When
enabled, Set value will appear on the display, allowing you to set the
value of Cos-Phi (as either Over or Under excited, from 1.000 to 0.800)
• Q fixed: Sets the reactive power rating to a fixed value. To enable this
mode, select Enable and then OK (using the UP / DOWN arrows) When
enabled, Set value will appear on the display, allowing you to set the va-
lue of reactive power rating (as either Over or Under excited, from 1.000
to 0.001).
• Cos-phi = f(P): Power rating as a function of the active power supplied
by the inverter. To enable this mode, select Enable and then OK (using
the UP / DOWN arrows). When it has been enabled, Load std curve
will appear on the display, allowing you to set the following control curve:
Cos-phi (Over excited)
0.85
0.9
0.95
1
0.95
0.9
0.85
Cos-phi (Under excited)
0.20 .3 0.4
• Q = f(U): reactive power as a function of the grid voltage measured by
the inverter. To enable this mode, select Enable and then OK (using the
UP / DOWN arrows). When it has been enabled, Load std curve will
appear on the display, allowing you to set the following control curve(*):
Q/Pn
0.36
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.36
220
210
15. MPPT
This section of the menu allows you to set the parameters of the maxi-
mum power point tracking (MPPT) function. This function is useful when
there are areas of shade on the PV generator, which may create several
points of maximum power on the operating curve.
• MPPT Amplitude: by setting this parameter you can choose the ampli-
tude of the DC perturbation introduced to establish the optimal operating
point. There are 3 settings to choose from (LOW, MEDIUM, HIGH). The
default setting is MEDIUM.
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0.50 0.6 .7 0.8
240
230
7 - Operation
P/Pn
1
0.9
Vout
250