JPS58108735U - Active waveform improvement device - Google Patents

Active waveform improvement device

Info

Publication number
JPS58108735U
JPS58108735U JP580682U JP580682U JPS58108735U JP S58108735 U JPS58108735 U JP S58108735U JP 580682 U JP580682 U JP 580682U JP 580682 U JP580682 U JP 580682U JP S58108735 U JPS58108735 U JP S58108735U
Authority
JP
Japan
Prior art keywords
harmonic current
phase
active waveform
waveform improvement
improvement device
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
JP580682U
Other languages
Japanese (ja)
Other versions
JPH025628Y2 (en
Inventor
速水　一夫
昌克 野村
Original Assignee
株式会社明電舎
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 株式会社明電舎 filed Critical 株式会社明電舎
Priority to JP580682U priority Critical patent/JPS58108735U/en
Publication of JPS58108735U publication Critical patent/JPS58108735U/en
Application granted granted Critical
Publication of JPH025628Y2 publication Critical patent/JPH025628Y2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第２図は従来の能動形波形改善装置のブロッ
ク図、第３図は本考案に係る能動形波形改善装置の一実
施例（要部）を示すブロック図である。　　・ １０・・・電源、２０・・・負荷、３０・・・能動形波
形改２善装置、３１・・」変流器、３３・・・電流補償
部、３４１〜３４ｎ・・・バンドパスフィルタ、３５・
・・加算器、３６１〜３６ｎ・・・位相補償回路。1 and 2 are block diagrams of a conventional active waveform improving device, and FIG. 3 is a block diagram showing an embodiment (main part) of an active waveform improving device according to the present invention.・ 10... Power source, 20... Load, 30... Active waveform improvement device, 31... Current transformer, 33... Current compensation unit, 341 to 34n... Band pass filter , 35・
...Adder, 361-36n...Phase compensation circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 負荷によって電源系統に生じる高調波電流を検出し、こ
れを変調信号としてパルス幅変調を行い、その被変調波
を位相反転させて補償電流を得、これを前記電源系統に
供給する能動形波形改善装置゛において、制御対象とす
る各次高論波に対応した周波数特性を有するバンドパス
フィルタと、これ、ら各バンドパスフィルタ通過後の各
次高調波電流の位相を個々ト補償する位相補償回路と、
位相補償後の各次高調波電流を加え合わせ□る加算器と
で−高調波電流検出回路を構成したことを特徴とする能
動形波形改善装置。Active waveform improvement that detects the harmonic current generated in the power supply system by the load, performs pulse width modulation using this as a modulation signal, inverts the phase of the modulated wave to obtain a compensation current, and supplies this to the power supply system. The device includes a bandpass filter having frequency characteristics corresponding to each harmonic wave to be controlled, and a phase compensation circuit that individually compensates the phase of each harmonic current after passing through each bandpass filter. and,
An active waveform improvement device characterized in that a harmonic current detection circuit is constituted by an adder that adds up each harmonic current after phase compensation.
JP580682U 1982-01-20 1982-01-20 Active waveform improvement device Granted JPS58108735U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP580682U JPS58108735U (en) 1982-01-20 1982-01-20 Active waveform improvement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP580682U JPS58108735U (en) 1982-01-20 1982-01-20 Active waveform improvement device

Publications (2)

Publication Number Publication Date
JPS58108735U true JPS58108735U (en) 1983-07-25
JPH025628Y2 JPH025628Y2 (en) 1990-02-09

Family

ID=30018600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP580682U Granted JPS58108735U (en) 1982-01-20 1982-01-20 Active waveform improvement device

Country Status (1)

Country Link
JP (1) JPS58108735U (en)

Also Published As

Publication number Publication date
JPH025628Y2 (en) 1990-02-09

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