Sices HS 315, Техническое руководство

Страница: 157 / 255

Technical Handbook 139
Note: during this stage, the generator is supplying the loads also. It is then possible
that the sum of the current absorbed by the loads and the current to be supplied to the
battery becomes greater than the generator rated current (P.9502): in this case, the
current setpoint is limited in order not to exceed the generator rated current. Moreover,
if some alarm thresholds are activated on the generator current, the current setpoint is
limited in order not to exceed these thresholds. These limitations are signalled by the
warning W273.
Once the current setpoint is calculated, the control loop increases/decreases progressively the
current supplied to the battery until the required setpoint is reached. Those modifications are
applied with the rate defined by P.9669
(“Ramp for current regulation”), defined as %/s.
The control loop used for the current regulation can be configured by:
•
P.9670 (
“Gain for current regulation loop”).
•
P.9671
(“Integrative factor for current regulation loop”).
See paragraph 9.5.6.
This stage ends when the battery voltage becomes higher than the threshold P.9676
(“End
charge (full) voltage for BULK mode
”) or P.9683 (“End charge (standard) voltage for BULK
mode”) (see 9.5.7), or when the charge limit is reached (see 9.5.5).
If you do not want to execute this stage, set parameter P.9675 or P.9682 (see 9.5.7) to 0.
In this stage, the charge of the battery is made at fixed voltage.
The voltage setpoint is
“the voltage at the end of the BULK stage”, that is the parameter P.9676
(“End charge (full) voltage for BULK mode”) or P.9683 (“End charge (standard) voltage for
BULK mode”) (see 9.5.7). The controller must act on the voltage regulator (or on the speed
governor for permanent magnets alternators) to force the battery voltage to be equal to the
setpoint.
Once the voltage setpoint is calculated, the control loop increases/decreases progressively
the generator voltage until the battery voltage reaches the setpoint. Those modifications are
applied with the rate defined by P.9672
(“Ramp for voltage regulation”), defined as %/s.
The control loop used for the voltage regulation can be configured by:
•
P.9673
(“Gain for voltage regulation loop”).
•
P.9674
(“Integrative factor for voltage regulation loop”).
See paragraph 9.5.6.
This stage ends when one of the following conditions happens:
•
The charge current (battery) becomes lower than the threshold set by P.9677
(“End
charge (full) current for ABSORBTION mode
”) or P.9684 (“End charge (standard)
cu
rrent for ABSORBTION mode”) (see 9.5.7).
•
After the maximum time configured by P.9678
(“Maximum charge (full) duration in
ABSORBTION mode
”) or P.9685 (“Maximum charge (standard) duration in
ABSORBTION mode”) (see 9.5.7).
•
When the charge limit is reached (see 9.5.5).
If during this stage the battery current becomes higher than P.9675
(“Charge (full) current in
BULK mode
”) or P.9682 (“Charge (standard) current in BULK mode”) (see 9.5.7), the
procedure goes back to the stage 1 (BULK).
If you do not want to execute this stage, set parameter P.9678 or P.9685 (see 9.5.7) to 0.