Transcript Subjects

Proposed Pressure Tolerant Converter Demo
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Located on an existing subsea field
At 1000-3000 m sea depth
Operated and monitored from existing infrastructure
In a pressure compensated vessel
Operating power: 100-200kW
Supplied power: 5-20kW
SINTEF Energy Research
1
Demo Power Circuit and Control
TU
Driver
AP
400V/ 50Hz
(for supply of losses)
LEM
Driver
BP
L
CDC
Driver
BN
Driver
AN
Pressure tolerant power circuit
PTC
Surveillance
Reference
current
Temperature
surveillance
Current
controller
TL
-
Blocking
logic
On
PWM A
+
Simple, pressure tolerant
control and monitoring circuit
AP
AN
Reference
voltage
-
PWM B
BP
+
BN
SINTEF Energy Research
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Proposed Demo
in Pressure Vessel
 Before or in parallel to subsea
installation, the Demo can be
subject to long-term test in a 70
liter 300 bar pressure vessel
 Pressure vessel planned for the
SINTEF subsea laboratory
 The pressure vessel will
accommodate the complete demo
comprising two phase-legs
SINTEF Energy Research
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