Jan van der Akker - Subsea UK
Jan van der Akker - Subsea UK Jan van der Akker - Subsea UK
The Medium Future (or nearer) • Increased transmission voltage will lower losses • Use DC/DC converters at distribution layer Basic technology already in use for all electric trees 22 SUBSEA SYSTEMS
More Calculation Examples Generic calculations l (150 W/SCM) • Standard Cameron electrohydraulic (EH) control system architecture • Standard Cameron EH control system equipment • Standard industry power transmission and distribution components • Qualified and field-proven Characteristics Generic Drill Centre Power distribution Dedicated quad No of SCMs 5 Max input power per SCM 150 W Min SCM input voltage 900 VDC EPU output voltage 1200 VDC Typical cable cross Maximum stepout section, sq.mm distance, km 6 54.8 10 92.2 16 146.7 25 232.1 35 322.0 * Note, the calculations are based on a mid-range SCM input voltage of 900 VDC, which integrates a considerable safety margin. Further increase in step-out distances can be achieved through assuming a lower SCM input voltage, i.e., reducing this margin. 23 SUBSEA SYSTEMS
- Page 1 and 2: Long step-outs, but avoiding increa
- Page 3 and 4: What do we want? Modular power and
- Page 5 and 6: What can we offer tomorrow? • Sys
- Page 7 and 8: Recent project examples Jack & St.
- Page 9 and 10: MCS EPU HPU UTA SCM SDU / SAM SCM S
- Page 11 and 12: Communications Distribution: Compar
- Page 13 and 14: Power Distribution 13 SUBSEA SYSTEM
- Page 15 and 16: Examples of remote switching 15 SUB
- Page 17 and 18: Examples of remote switching • Mo
- Page 19 and 20: Cross Section Calculations Field sc
- Page 21: The Near Future: Higher Power Requi
- Page 25 and 26: Summary • High-speed communicatio
More Calculation Examples<br />
Generic calculations l (150 W/SCM)<br />
• Standard Cameron electrohydraulic<br />
(EH) control system<br />
architecture<br />
• Standard Cameron EH control<br />
system equipment<br />
• Standard industry power<br />
transmission and distribution<br />
components<br />
• Qualified and field-proven<br />
Characteristics<br />
Generic Drill Centre<br />
Power distribution<br />
Dedicated quad<br />
No of SCMs 5<br />
Max input power per SCM<br />
150 W<br />
Min SCM input voltage<br />
900 VDC<br />
EPU output voltage<br />
1200 VDC<br />
Typical cable cross<br />
Maximum stepout<br />
section, sq.mm<br />
distance, km<br />
6 54.8<br />
10 92.2<br />
16 146.7<br />
25 232.1<br />
35 322.0<br />
*<br />
Note, the calculations are based on a mid-range SCM<br />
input voltage of 900 VDC, which integrates a consi<strong>der</strong>able<br />
safety margin. Further increase in step-out distances can<br />
be achieved through assuming a lower SCM input<br />
voltage, i.e., reducing this margin.<br />
23<br />
SUBSEA SYSTEMS
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