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KR900019318A - Active filter control device - Google Patents

Active filter control device Download PDF

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Publication number
KR900019318A
KR900019318A KR1019890006365A KR890006365A KR900019318A KR 900019318 A KR900019318 A KR 900019318A KR 1019890006365 A KR1019890006365 A KR 1019890006365A KR 890006365 A KR890006365 A KR 890006365A KR 900019318 A KR900019318 A KR 900019318A
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KR
South Korea
Prior art keywords
current
signal
active filter
load
component
Prior art date
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Application number
KR1019890006365A
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Korean (ko)
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KR920007408B1 (en
Inventor
다게아끼 아사에다
Original Assignee
시기 모리야
미쓰비시뎅끼 가부시끼가이샤
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Priority to KR1019890006365A priority Critical patent/KR920007408B1/en
Publication of KR900019318A publication Critical patent/KR900019318A/en
Application granted granted Critical
Publication of KR920007408B1 publication Critical patent/KR920007408B1/en
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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

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

Abstract

내용 없음No content

Description

액티브 필터의 제어장치Active filter control device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 이 발명의 한 실시예에 의한 액티브 필터의 제어장치를 표시하는 회로 구성도, 제3도는 이 발명의 다른 실시예를 표시하는 회로구성도.1 is a circuit diagram showing a control device of an active filter according to an embodiment of the present invention, and FIG. 3 is a circuit diagram showing another embodiment of the present invention.

Claims (3)

단상 교류전원에 접속된 부하에 병렬 접속되어 해당부하의 고조파 전류성분을 흡수하도록 작동하는 액티브 필터에 있어서, 상기 단상교류전원에 동기한 위상신호를 발생하는 PLL회로와, 상기 위상신호를 입력하여 출력신호 sinθ 및 cosθ를 얻는 ROM회로와, 상기부하의 부하전류검출신호와 상기 출력신호 sinθ 및 cosθ를 승산하는 제1의 승산기와, 상기 제1의 승산기의 출력신호를 상기 단상교류전원의 1주기의 기간마다 적분하는 적분기와, 상기 적분기의 적분최종치를 홀드 하여 상기 부하전류의 기본파 성분을 구성하는 유효전류성분과 무효전류성분의 피크치를 구하는 샘플홀드회로와 상기 피크치와 상기 출력신호 sinθ 및 cosθ를 승산하는 제2승산기와, 상기 제2승산기에서 출력된 상기 기본파성분의 유효전류성분과 무효전류성분을 합성하여 얻어지는 기본파 전류신호를 상기단상 교류전원의 다음의 1주기의 기간의 상기 부하 전류의 기본파 전류신호로서 이용하여, 이 기본파전류신호와 상기 부하전류검출신호와의 차로서 얻어지는 고조파 전류신호를 기준신호로서 상기 액티브 필터의 입력 전류를 PWM제어하는 PWM제어회로와를 구비한 것을 특징으로 하는 액티브필터의 제어장치.An active filter connected in parallel to a load connected to a single-phase AC power source and operating to absorb harmonic current components of a corresponding load, the active filter comprising: a PLL circuit for generating a phase signal synchronized with the single-phase AC power supply; A ROM circuit for obtaining signals sinθ and cosθ, a first multiplier for multiplying the load current detection signal of the load and the output signals sinθ and cosθ, and an output signal of the first multiplier in one cycle of the single phase AC power supply. A sample hold circuit for finding the peak values of the active current component and the reactive current component constituting the fundamental wave components of the load current by holding the integrator integrated at each period and the integral final value of the integrator, and the peak values and the output signals sinθ and cosθ. A second multiplier multiplied and obtained by synthesizing an active current component and an reactive current component of the fundamental wave component output from the second multiplier A harmonic current signal obtained as a difference between the fundamental wave current signal and the load current detection signal is used as a reference signal by using the main wave current signal as a fundamental wave current signal of the load current in a period of one cycle following the single-phase AC power supply. And a PWM control circuit for PWM controlling the input current of the active filter. 제1항에 있어서 액티브필터를 전압형인벙터로서 구성한 경우에는 그출력전압을 또 전류형 인버터로서 구성한 경우에는 그출력전류를 해당출력전압 혹은 출력전류의 기준신호와 비교하여 그 차분을 증폭하여 유효전류성분에 가산하는 것을 특징으로 하는 액티브 필터의 제어장치.The method of claim 1, when the active filter is configured as a voltage type bunker, when the output voltage is configured as a current type inverter, and the output current is compared with a reference signal of the corresponding output voltage or output current, the difference is amplified and the effective current. The control apparatus of the active filter characterized by adding to a component. 제1항에 있어서 복수조 설치한 적분기 및 샘플 홀드회로를 시분할 다중구성으로하여 동작시켜 전기 각조의 샘플홀드회로의 출력신호를 시분할 타이밍 신호에 동기시켜 선택하고 부하전류의 기본파성분을 구성하는 유효전류성분과 무효전력성분의 피크치를 구하는 것을 특징으로 하는 액티브 필터의 제어장치.The effective operation of selecting a plurality of sets of integrators and sample hold circuits in a time division multiple configuration to select the output signals of the respective sample hold circuits in synchronism with the time division timing signals and to configure fundamental wave components of the load current. A control device for an active filter, characterized by obtaining peak values of a current component and a reactive power component. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890006365A 1989-05-11 1989-05-11 Controller for active filter Expired KR920007408B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890006365A KR920007408B1 (en) 1989-05-11 1989-05-11 Controller for active filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890006365A KR920007408B1 (en) 1989-05-11 1989-05-11 Controller for active filter

Publications (2)

Publication Number Publication Date
KR900019318A true KR900019318A (en) 1990-12-24
KR920007408B1 KR920007408B1 (en) 1992-08-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890006365A Expired KR920007408B1 (en) 1989-05-11 1989-05-11 Controller for active filter

Country Status (1)

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KR (1) KR920007408B1 (en)

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Publication number Publication date
KR920007408B1 (en) 1992-08-31

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