JPS6426324A - Detecting device for torsion of shaft due to interference between generator and dc transmission system - Google Patents

Detecting device for torsion of shaft due to interference between generator and dc transmission system

Info

Publication number
JPS6426324A
JPS6426324A JP62178942A JP17894287A JPS6426324A JP S6426324 A JPS6426324 A JP S6426324A JP 62178942 A JP62178942 A JP 62178942A JP 17894287 A JP17894287 A JP 17894287A JP S6426324 A JPS6426324 A JP S6426324A
Authority
JP
Japan
Prior art keywords
generator
axial
torsion
generation
detected
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
JP62178942A
Other languages
Japanese (ja)
Inventor
Hiroo Konishi
Yasuo Matsuda
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 JP62178942A priority Critical patent/JPS6426324A/en
Publication of JPS6426324A publication Critical patent/JPS6426324A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

  • Protection Of Generators And Motors (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE:To permit the detection of generation of axial torsion in a high speed, by a method wherein the magnitudes of phase differences in the frequency components of axial torsions of the change of angular velocity and the change of an electric torque are compared. CONSTITUTION:A signal, equivalent to the electric torque of a generator 2, is detected by a detecting circuit 73. Another signal, equivalent to the angular velocity of the generator 2, is detected by another detecting circuit 75. These signals are passed through band-pass filters 74, 76 to extract the axial torsion frequency components of these signals. These axial torsion frequency components are inputted into a phase difference comparing circuit 77 to detect phase differences while the generation or non-generation of the axial torsions due to an interference between the generator 2 and a DC transmission system 5 is decided by the magnitudes of the detected values. According to this method, the generation of the axial torsion may be detected in a high speed whereby the axial torsion may be restrained in an early period.
JP62178942A 1987-07-20 1987-07-20 Detecting device for torsion of shaft due to interference between generator and dc transmission system Pending JPS6426324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62178942A JPS6426324A (en) 1987-07-20 1987-07-20 Detecting device for torsion of shaft due to interference between generator and dc transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178942A JPS6426324A (en) 1987-07-20 1987-07-20 Detecting device for torsion of shaft due to interference between generator and dc transmission system

Publications (1)

Publication Number Publication Date
JPS6426324A true JPS6426324A (en) 1989-01-27

Family

ID=16057339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62178942A Pending JPS6426324A (en) 1987-07-20 1987-07-20 Detecting device for torsion of shaft due to interference between generator and dc transmission system

Country Status (1)

Country Link
JP (1) JPS6426324A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010503370A (en) * 2006-09-07 2010-01-28 シーメンス アクチエンゲゼルシヤフト Attenuation adjuster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010503370A (en) * 2006-09-07 2010-01-28 シーメンス アクチエンゲゼルシヤフト Attenuation adjuster

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