JPS55103075A - Device for measuring current of harmonic filter - Google Patents

Device for measuring current of harmonic filter

Info

Publication number
JPS55103075A
JPS55103075A JP1041479A JP1041479A JPS55103075A JP S55103075 A JPS55103075 A JP S55103075A JP 1041479 A JP1041479 A JP 1041479A JP 1041479 A JP1041479 A JP 1041479A JP S55103075 A JPS55103075 A JP S55103075A
Authority
JP
Japan
Prior art keywords
filter
harmonic
determined
current
component
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
JP1041479A
Other languages
Japanese (ja)
Inventor
Kunio Saito
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 JP1041479A priority Critical patent/JPS55103075A/en
Publication of JPS55103075A publication Critical patent/JPS55103075A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE: To separate the current to a harmonic filter into a component from a line and another component from a thyristor converter and separately measure the components, by performing calculation.
CONSTITUTION: A harmonic component due to power distortion is separated from higher harmonics introduced into a filter and is determined by a vectorial measuring calculator VMC. The vectorial measurement of the harmonic current is effected after currents determined by current transformers SSCT, FILCT, THYCT and the output of a calculating transformer PT for measuring the voltage on a filter connection point are removed of the fundamental waves. The component due to the power distortion is thus separated from the higher harmonics introduced into the filter and is then determined.
COPYRIGHT: (C)1980,JPO&Japio
JP1041479A 1979-02-02 1979-02-02 Device for measuring current of harmonic filter Pending JPS55103075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1041479A JPS55103075A (en) 1979-02-02 1979-02-02 Device for measuring current of harmonic filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1041479A JPS55103075A (en) 1979-02-02 1979-02-02 Device for measuring current of harmonic filter

Publications (1)

Publication Number Publication Date
JPS55103075A true JPS55103075A (en) 1980-08-06

Family

ID=11749481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1041479A Pending JPS55103075A (en) 1979-02-02 1979-02-02 Device for measuring current of harmonic filter

Country Status (1)

Country Link
JP (1) JPS55103075A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6039374A (en) * 1983-08-12 1985-03-01 Meidensha Electric Mfg Co Ltd Output waveform improving method of inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6039374A (en) * 1983-08-12 1985-03-01 Meidensha Electric Mfg Co Ltd Output waveform improving method of inverter

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