JPS5449542A - Multiterminal dc transmission control device - Google Patents

Multiterminal dc transmission control device

Info

Publication number
JPS5449542A
JPS5449542A JP11556177A JP11556177A JPS5449542A JP S5449542 A JPS5449542 A JP S5449542A JP 11556177 A JP11556177 A JP 11556177A JP 11556177 A JP11556177 A JP 11556177A JP S5449542 A JPS5449542 A JP S5449542A
Authority
JP
Japan
Prior art keywords
current
trouble
set value
inverter
time
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.)
Pending
Application number
JP11556177A
Other languages
Japanese (ja)
Inventor
Makoto Tamai
Noritoshi Fujii
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11556177A priority Critical patent/JPS5449542A/en
Publication of JPS5449542A publication Critical patent/JPS5449542A/en
Pending legal-status Critical Current

Links

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE: To provide the subject device wherein at the time of normal running of the DC transmission system a current set value at the usual driving is imparted to the system and at the time of trouble a current set value on which the DC becomes within the interrupting capacity is imparted thereto, thereby facilitating cutting off of the inverter in trouble.
CONSTITUTION: Taking notice of a fact that even the conventional DC interrupter can interrupt a DC if it is suitable, the set current for each of the inverters is lowered so that the current becomes an interruptable current, thereby to suppress to interrupt the current flowing into the troubled inverter. That is, in a multiterminal DC transmission system in which a plurality of AC-DC inverters are connected to the DC line through respective DC interrupters, a set value Idf at the trouble is provided, in addition to a set value Idp of a constant-current control circuit ACR and a current margin necessary for power inverting time, and if any inverter is in trouble, the unit receives the signal which has detected the trouble, thereby to change over to the set value Idf
COPYRIGHT: (C)1979,JPO&Japio
JP11556177A 1977-09-28 1977-09-28 Multiterminal dc transmission control device Pending JPS5449542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11556177A JPS5449542A (en) 1977-09-28 1977-09-28 Multiterminal dc transmission control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11556177A JPS5449542A (en) 1977-09-28 1977-09-28 Multiterminal dc transmission control device

Publications (1)

Publication Number Publication Date
JPS5449542A true JPS5449542A (en) 1979-04-18

Family

ID=14665580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11556177A Pending JPS5449542A (en) 1977-09-28 1977-09-28 Multiterminal dc transmission control device

Country Status (1)

Country Link
JP (1) JPS5449542A (en)

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