Voltage regulation for a subsea control system

A subsea control system comprises: at least one electrical cable (12, 14) having first and second points spaced apart along the length of the electrical cable or cables; a power supply electrically (6) connected to said first point, and arranged to supply a first alternating voltage to said first po...

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Bibliographische Detailangaben
Hauptverfasser:	Nicola Chiesa, Steinar Midttveit, Trond Benny Bertmand, Gunliev Skofteland, Øyvind Holm Snefjellå
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A subsea control system comprises: at least one electrical cable (12, 14) having first and second points spaced apart along the length of the electrical cable or cables; a power supply electrically (6) connected to said first point, and arranged to supply a first alternating voltage to said first point; at least one subsea control device (4), for assisting in the control of a subsea oil and gas production system, said subsea control device being electrically connected to said second point so as to receive at said second point a second alternating voltage as a result of transmission along said cable or cables of said first alternating voltage; and * a voltage regulator (8) for varying the magnitude of said first alternating voltage in dependence on the electrical load applied to said second point.