ES8609844A1 - Superimposing AC on HVDC cable to improve dielectric strength - Google Patents

Superimposing AC on HVDC cable to improve dielectric strength

Info

Publication number
ES8609844A1
ES8609844A1 ES547781A ES547781A ES8609844A1 ES 8609844 A1 ES8609844 A1 ES 8609844A1 ES 547781 A ES547781 A ES 547781A ES 547781 A ES547781 A ES 547781A ES 8609844 A1 ES8609844 A1 ES 8609844A1
Authority
ES
Spain
Prior art keywords
voltage
cable
generator
dielectric strength
superimposing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES547781A
Other languages
Spanish (es)
Other versions
ES547781A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pirelli and C SpA
Original Assignee
Pirelli Cavi SpA
Cavi Pirelli SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pirelli Cavi SpA, Cavi Pirelli SpA filed Critical Pirelli Cavi SpA
Publication of ES547781A0 publication Critical patent/ES547781A0/en
Publication of ES8609844A1 publication Critical patent/ES8609844A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

In order to improve the transmissivity characteristics of an electric cable (1), particularly a submarine cable, transmitting power by means of a DC voltage, an AC voltage lower than the DC voltage (E1, E2) is superimposed on the DC voltage to improve dielectric strength. The AC voltage may be generated permanently, intermittently for periods of time, or prior to installation of the cable. Converter stations (4, 5) are provided at each end of the cable for transmitting and receiving power, and one station contains a first AC generator (E1) while the other contains a passive or active AC source (E2) which provides a voltage equal and in phase with the first generator (E1) to cancel out the alternating current flow in the loop comprising the cable and converter stations. The AC generators may be separate voltage generators or may be provided by modulation of the control system controlling the power conversion means in the generator.
ES547781A 1984-10-26 1985-10-11 Superimposing AC on HVDC cable to improve dielectric strength Expired ES8609844A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23347/84A IT1180238B (en) 1984-10-26 1984-10-26 METHOD AND EQUIPMENT TO FEED AN ELECTRIC CABLE WITH A CONTINUOUS VOLTAGE THERE IS AN ALTERNATE VOLTAGE OVERLAPPED

Publications (2)

Publication Number Publication Date
ES547781A0 ES547781A0 (en) 1986-09-01
ES8609844A1 true ES8609844A1 (en) 1986-09-01

Family

ID=11206295

Family Applications (2)

Application Number Title Priority Date Filing Date
ES547782A Expired ES8609845A1 (en) 1984-10-26 1985-10-11 Superimposing AC on HVDC cable to improve dielectric strength
ES547781A Expired ES8609844A1 (en) 1984-10-26 1985-10-11 Superimposing AC on HVDC cable to improve dielectric strength

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES547782A Expired ES8609845A1 (en) 1984-10-26 1985-10-11 Superimposing AC on HVDC cable to improve dielectric strength

Country Status (13)

Country Link
JP (1) JPS61109425A (en)
AU (1) AU4694585A (en)
BR (1) BR8504738A (en)
DE (1) DE3537900A1 (en)
DK (1) DK493085A (en)
ES (2) ES8609845A1 (en)
FI (1) FI854194L (en)
FR (1) FR2572598A1 (en)
GB (1) GB2166305A (en)
GR (1) GR852566B (en)
IT (1) IT1180238B (en)
NO (1) NO854283L (en)
SE (1) SE8505002L (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1557147A (en) * 1968-01-16 1969-02-14
IT1153064B (en) * 1982-11-18 1987-01-14 Pirelli Cavi Spa METHOD AND RELATED SYSTEM TO PROMOTE THE DIELECTRIC RIGIDITY OF A DIRECT CURRENT CABLE INSULATION

Also Published As

Publication number Publication date
SE8505002L (en) 1986-04-27
ES547781A0 (en) 1986-09-01
SE8505002D0 (en) 1985-10-23
FI854194A0 (en) 1985-10-25
IT8423347A0 (en) 1984-10-26
GB8526090D0 (en) 1985-11-27
BR8504738A (en) 1986-02-04
AU4694585A (en) 1986-05-01
DK493085D0 (en) 1985-10-25
ES547782A0 (en) 1986-09-01
NO854283L (en) 1986-04-28
DE3537900A1 (en) 1986-04-30
FR2572598A1 (en) 1986-05-02
GR852566B (en) 1986-02-24
GB2166305A (en) 1986-04-30
JPS61109425A (en) 1986-05-27
IT1180238B (en) 1987-09-23
FI854194L (en) 1986-04-27
ES8609845A1 (en) 1986-09-01
DK493085A (en) 1986-04-27

Similar Documents

Publication Publication Date Title
AU3609197A (en) Device and method for direct current power supply to a traction system by means of converters from different alternating current or direct current voltages
GB1500292A (en) High voltage dc transmission system
MY124133A (en) Hybrid generator apparatus
PL351025A1 (en) A wind power plant and a method for control
CA2011563A1 (en) Power conversion system
CA2056383A1 (en) A system for discharging electrical power from a high-voltage direct current line
SE8105031L (en) emergency power
EP0377328A3 (en) Vscf starter/generator systems
SE9500480D0 (en) Plant for transferring electrical power between two AC networks using high voltage direct current
ES8202203A1 (en) Converter System
DE3664179D1 (en) Method and device for the operation of a hvdc short interconnection in case of power system faults
CA2218938A1 (en) A plant for transmitting electric power to remote facilities which have an electric motor load
DE3664987D1 (en) Device for producing a three-phase voltage system with a neutral cable to be loaded
TR27883A (en) Uninterrupted electrical power supply installation.
DE3463328D1 (en) Hvdc-current coupling station
HK66996A (en) Circuit arrangement for powering a load
SE9701060D0 (en) Electric power transmission system
ES8609844A1 (en) Superimposing AC on HVDC cable to improve dielectric strength
EP0241250A3 (en) Switching mode power supply
SE0202433D0 (en) A plant for transmitting electrical power and a method for operating such a plant
SE9304023L (en) Apparatus for draining electrical power from a high voltage DC transmission line
GB2148619B (en) Three phase a.c. to d.c. voltage converter with improved power line harmonic current reduction
JPS56111922A (en) Power generation system
SU1531797A1 (en) METHOD OF MANAGEMENT OF ELECTRICAL TRANSMISSION
GB191121687A (en) Improvements relating to Systems of Electrical Distribution Employing Rotary Converters.