High Country Tek HGC-2, Closed Loop Controller - Manual (Page 18)

Hydraulic Generator Controller – HGC-2
18
Operational Guide:
The following section gives the user a generic overview of expected control results once the controllers PID
settings have been optimized for the individual generator set-up being produced. These results are for reference
only and may vary depending on individual circumstances, product technologies
Hydraulic Circuit configuration:
• Prime Mover – 50KW @ 1800 RPM on Variable Frequency Drive
• Pump – 45 cc/rev load-sense pump
• Valve - 2 position, 2 way, non compensated proportional size 12 cartridge with 12 VDC coil
• Oil temperature – forced air cooled with ambient air
• Oil type – Standard Hydraulic Mineral oil
Generator Configuration:
• Armature – Mec Alte' 2 pole, S16F-180/B rated at 8KW @ 3600 RPM (de-rated to 6KW for severe duty service)
• Hydraulic Motor – Sauer Danfoss SNM2-FL/08-SSC06-RZZ1
• Voltage regulator – dual capacitor, passive
Electrical specification:
• Regulated power supply 13 VDC ( from integrated PSU on test application ).
• HV electrical loading by combined resistive and inductive loads
This result shows what can be achieved with the
correct settings on the controller. The graph left
demonstrates the recovery time of the output
frequency when the generators load is fully
applied, then fully removed, then fully applied
once more.
This sequence of instantaneous events is
probably the worst that the generator will see, yet
undershoot, overshoot and steady state are well
controlled and acceptable for the majority of
today's applications.
40
45
50
55
60
65
70
75
1 16 31 46 61 76 91 106 121 136 151 166 181
No load – Full load – No load test
Fre
q
u
e
n
c
y
-
Hz
Time base = Milliseconds
Test Specifications – Stability With Load Changes