Priority Running And Balanced Running Time Description - Smartgen HGM9510N User Manual

16 PRIORITY RUNNING AND BALANCED RUNNING TIME DESCRIPTION

Different module IDs must be configured for the controller, but the module priority can be the same (the
smaller number with the higher priority). Balanced Running Time function is enabled by the controller
"Balance Hours" function. All gensets that need to have balanced running time shall set the same
module priority.
Scheduling running principles:
a. Genset with the higher priority starts firstly and stop lastly.
b. Gensets with the same priority:
If "Balance Hours" function is enabled, the unit with less running time has higher priority, otherwise,
the unit with the smaller module ID has higher priority. Running time is user accumulated running time
B.
c. When "Call Sets Mode" is genset power percentage, if gen load (%) exceeds pre-set "Call More Sets
(%)" limit, the standby genset with higher priority will start up; if gen load (%) falls below pre-set "Call
Less Sets (%)" limit after one genset stopped, the genset with lower priority will stop.
d. When "Call Sets Mode" is available power, if bus available power (difference value of rated power
of closed gensets and current loading power) falls below "Call More Sets (W)", the standby genset with
higher priority will start up; if bus available power exceeds pre-set "Call Less Sets (W)" limit, the genset
with lower priority will stop.
e. If "Sets on Bus" is the minimum scheduled sets, the number of genset on the bus is prioritized.
f. "Economy Fuel" scheduling function cannot work together with "Balance Hours" scheduling
function. If "Economy Fuel" scheduling is enabled, "Balance Hours" scheduling function will not work
any longer.
e.g.: Rated power of genset 1 is 100kW, module ID is 1 and priority is 1; rated power of genset 2 is 100kW, module ID is 2
and priority is 2; rated power of genset 3 is 100kW, module ID is 3 and priority is 2, and geset 2 has the same running
time with genset 3. The three gensets settings are: "Balance Hours" is enabled, and "Balance Hours" is set as 1 hour,
"Call Sets Mode" is genset power percentage and set scheduling start genset percentage is 80% and scheduling stop
genset percentage is 50%, "Sets on Bus" number is 1.
Three gensets are in auto mode, and "start on demand" is active, then genset 1 starts and takes load.
Current load is 85kW, genset 1 load percentage is 85%, which is above "Call More Sets (80%)". Since genset 2 has the
same running time with genset 3, but genset 2 ID is smaller than genset 3, so genset 2 will start and take on load.
After running for 1 hour, current load is 90kW, genset 2 load percentage is 45%, running time of genset 2 is longer than
genset 3, and then genset 3 will start and take on load. If it meets "Call Less Sets (%)" condition, genset 2 will ramp-off
load and stop.
Current load is 166kW, start genset percentage is 83%, which is above "Call More Sets (80%)", other gensets will request
to start, and then genset 2 will start and take on load.
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