JPS563574A - Power source filter device - Google Patents

Power source filter device

Info

Publication number
JPS563574A
JPS563574A JP7686779A JP7686779A JPS563574A JP S563574 A JPS563574 A JP S563574A JP 7686779 A JP7686779 A JP 7686779A JP 7686779 A JP7686779 A JP 7686779A JP S563574 A JPS563574 A JP S563574A
Authority
JP
Japan
Prior art keywords
output
signal
signals
current
power source
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.)
Granted
Application number
JP7686779A
Other languages
Japanese (ja)
Other versions
JPS611761B2 (en
Inventor
Toshiaki Okuyama
Yasuo Matsuda
Takeo Maeda
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 JP7686779A priority Critical patent/JPS563574A/en
Publication of JPS563574A publication Critical patent/JPS563574A/en
Publication of JPS611761B2 publication Critical patent/JPS611761B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from ac input or output

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To enable injurious power source higher harmonics to be eliminated, by controlling inverter's output current in such a manner as to proportion it to harmonic component contained in a transducer 1's input current. CONSTITUTION:Output signals of integrators 9 and 10 and multipliers 7 and 8 are integrated for a prescribed time, and signals resulted from the integration are to become the signals which, of harmonic component contained in an input current of a transducer 1, agree in frequency with a signal of an oscillator 6 and are in proportion to magnitude of components of the same phase of all the signals. The output is put into an amplifier 18 through sample-holding circuits 11 and 12 and also multipliers 14 and 15, and a signal which corresponds to a deviation from an output corresponding to an output signal of a current detector 17 is put out. This is compared with an output signal of an oscillator 19 and the result is impressed onto a thyrister of an inverter 2 as a gate signal, and it is controlled in such a manner that as a result of having R-phase voltage controlled, R-phase output current becomes proportional to an output signal of an adder 16.
JP7686779A 1979-06-20 1979-06-20 Power source filter device Granted JPS563574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7686779A JPS563574A (en) 1979-06-20 1979-06-20 Power source filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7686779A JPS563574A (en) 1979-06-20 1979-06-20 Power source filter device

Publications (2)

Publication Number Publication Date
JPS563574A true JPS563574A (en) 1981-01-14
JPS611761B2 JPS611761B2 (en) 1986-01-20

Family

ID=13617591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7686779A Granted JPS563574A (en) 1979-06-20 1979-06-20 Power source filter device

Country Status (1)

Country Link
JP (1) JPS563574A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870088U (en) * 1981-11-04 1983-05-12 株式会社明電舎 Control device for harmonic suppression device
JPS5870090U (en) * 1981-10-30 1983-05-12 株式会社明電舎 Protection circuit for harmonic suppressor
JPS5928842A (en) * 1982-07-30 1984-02-15 ウエスチングハウス　エレクトリック　コ−ポレ−ション Stationary reactive power compensating device
JPS6086616A (en) * 1983-10-18 1985-05-16 Toshiba Corp Control method of reactive power compensating device
JPS6093537A (en) * 1983-10-27 1985-05-25 Toshiba Corp Compensating device for reactive power and higher harmonic current
JPS6149663A (en) * 1984-08-17 1986-03-11 Japanese National Railways<Jnr> Controller of power converter
JPS6216065A (en) * 1985-07-12 1987-01-24 Toshiba Corp Higher harmonic inhibitor for power converter
JPS6223322A (en) * 1985-07-18 1987-01-31 日新電機株式会社 Active filter
JPS62172294U (en) * 1986-04-19 1987-10-31
JPS6380721A (en) * 1986-09-22 1988-04-11 東洋電機製造株式会社 Harmonic compensator
JPS63190521A (en) * 1987-02-02 1988-08-08 関西電力株式会社 Active filter
JPS63217928A (en) * 1987-03-04 1988-09-12 関西電力株式会社 Active filter with injection circuit
EP0419217A2 (en) * 1989-09-18 1991-03-27 Mitsubishi Denki Kabushiki Kaisha Thyristor converter system with higher harmonics suppression
US5347441A (en) * 1989-09-18 1994-09-13 Mitsubishi Denki Kabushiki Kaisha Thyristor converter system with higher harmonics suppression

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870090U (en) * 1981-10-30 1983-05-12 株式会社明電舎 Protection circuit for harmonic suppressor
JPH0514715Y2 (en) * 1981-10-30 1993-04-19
JPH047667Y2 (en) * 1981-11-04 1992-02-27
JPS5870088U (en) * 1981-11-04 1983-05-12 株式会社明電舎 Control device for harmonic suppression device
JPS5928842A (en) * 1982-07-30 1984-02-15 ウエスチングハウス　エレクトリック　コ−ポレ−ション Stationary reactive power compensating device
JPS6086616A (en) * 1983-10-18 1985-05-16 Toshiba Corp Control method of reactive power compensating device
JPS6093537A (en) * 1983-10-27 1985-05-25 Toshiba Corp Compensating device for reactive power and higher harmonic current
JPS6149663A (en) * 1984-08-17 1986-03-11 Japanese National Railways<Jnr> Controller of power converter
JPS6216065A (en) * 1985-07-12 1987-01-24 Toshiba Corp Higher harmonic inhibitor for power converter
JPH0423513B2 (en) * 1985-07-12 1992-04-22 Tokyo Shibaura Electric Co
JPS6223322A (en) * 1985-07-18 1987-01-31 日新電機株式会社 Active filter
JPS62172294U (en) * 1986-04-19 1987-10-31
JPS6380721A (en) * 1986-09-22 1988-04-11 東洋電機製造株式会社 Harmonic compensator
JPS63190521A (en) * 1987-02-02 1988-08-08 関西電力株式会社 Active filter
JPS63217928A (en) * 1987-03-04 1988-09-12 関西電力株式会社 Active filter with injection circuit
EP0419217A2 (en) * 1989-09-18 1991-03-27 Mitsubishi Denki Kabushiki Kaisha Thyristor converter system with higher harmonics suppression
US5347441A (en) * 1989-09-18 1994-09-13 Mitsubishi Denki Kabushiki Kaisha Thyristor converter system with higher harmonics suppression

Also Published As

Publication number Publication date
JPS611761B2 (en) 1986-01-20

Similar Documents

Publication Publication Date Title
JPS563574A (en) Power source filter device
JPS5676637A (en) Phase synchronizing circuit
JPS54160150A (en) Frequency selecting circuit
JPS5737907A (en) Fm wave detector
JPS5786767A (en) Detection circuit for rate of higher harmonic component
JPS5243965A (en) Flicker prevention device
JPS5329531A (en) Filter circuit
JPS561627A (en) Noise eliminating circuit
ES8306299A1 (en) Frequency converter and phase locked loop circuit
JPS57155840A (en) Distortion reducing circuit
JPS5614757A (en) Frequency modulation system
SU1483465A1 (en) Harmonic signal shaper
JPS54118149A (en) Comparator circuit
JPS52111642A (en) Input converter
SU124522A1 (en) DC / AC signal converter
JPS55151817A (en) Clock reproducing circuit
JPS5518183A (en) Crystal oscillator
JPS55103074A (en) Phase controlling synchronization circuit
JPS5479417A (en) Inverter control circuit for motor driveng
JPS57145440A (en) Phase synchronizing circuit
JPS5743600A (en) Phase control device
JPS5588600A (en) Motor generator
JPS54147442A (en) Relay inspection system for second harmonic detection
JPS5336279A (en) Calculating device for amplitude value
JPS5571315A (en) Limit cycle reduction system of digital filter