CA1068824A - Root mean square detector - Google Patents

Root mean square detector

Info

Publication number
CA1068824A
CA1068824A CA236,952A CA236952A CA1068824A CA 1068824 A CA1068824 A CA 1068824A CA 236952 A CA236952 A CA 236952A CA 1068824 A CA1068824 A CA 1068824A
Authority
CA
Canada
Prior art keywords
voltage
circuit arrangement
value
current
regulator
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.)
Expired
Application number
CA236,952A
Other languages
English (en)
French (fr)
Inventor
Dierk Schroder
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Application granted granted Critical
Publication of CA1068824A publication Critical patent/CA1068824A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/001—Measuring real or reactive component; Measuring apparent energy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/02—Measuring effective values, i.e. root-mean-square values
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation
    • 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
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
    • 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
    • Y02E40/10—Flexible AC transmission systems [FACTS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Mechanical Operated Clutches (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Control Of Electric Motors In General (AREA)
CA236,952A 1974-10-02 1975-10-01 Root mean square detector Expired CA1068824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2446943A DE2446943C2 (de) 1974-10-02 1974-10-02 Schaltungsanordnung zur schnellen Erfassung und Kompensation der Verbraucherblindleistungsaufnahme in ein- oder mehrphasigen Wechselstromnetzen

Publications (1)

Publication Number Publication Date
CA1068824A true CA1068824A (en) 1979-12-25

Family

ID=5927291

Family Applications (1)

Application Number Title Priority Date Filing Date
CA236,952A Expired CA1068824A (en) 1974-10-02 1975-10-01 Root mean square detector

Country Status (7)

Country Link
US (1) US4041370A (en:Method)
BR (1) BR7506382A (en:Method)
CA (1) CA1068824A (en:Method)
CH (1) CH612020A5 (en:Method)
DE (1) DE2446943C2 (en:Method)
NO (1) NO144051C (en:Method)
SE (1) SE408733B (en:Method)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234842A (en) * 1978-04-03 1980-11-18 Westinghouse Electric Corp. Voltage regulator and flicker compensator
DE2851871C2 (de) * 1978-11-30 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Bedämpfung von Leistungspendelungen in Netzen
US4255700A (en) * 1979-03-09 1981-03-10 Mitsubishi Denki Kabushiki Kaisha Control circuit of reactive power compensation apparatus
US4507722A (en) * 1981-11-30 1985-03-26 Park-Ohio Industries, Inc. Method and apparatus for controlling the power factor of a resonant inverter
US4977513A (en) * 1984-08-20 1990-12-11 Power Solutions, Inc. Circuit breaker current monitoring
DE3708468A1 (de) * 1986-03-17 1987-09-24 Siemens Ag Verfahren und vorrichtung zum kompensieren von oberschwingungsbelastungen und/oder blindlast in einem versorgungsnetz
CH670894A5 (en:Method) * 1986-10-13 1989-07-14 Landis & Gyr Ag
DE19516604A1 (de) * 1995-05-09 1997-02-13 Siemens Ag Verfahren und Vorrichtung zur statischen und dynamischen Stützung einer Netzspannung mittels einer statischen Kompensationseinrichtung mit einem selbstgeführten Stromrichter
JP5893544B2 (ja) * 2011-10-31 2016-03-23 パナソニック株式会社 電圧制御装置、電圧制御方法、電力調整装置、及び電圧制御プログラム
WO2020154849A1 (zh) * 2019-01-28 2020-08-06 深圳大学 获取交流电力网中源荷的支路圴方电流分量的对称方法
EP4584597A1 (en) * 2022-09-05 2025-07-16 Ariel Scientific Innovations Ltd. Methods and systems for fast correction of voltage during a fraction of an ac period

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE348602B (en:Method) * 1971-01-18 1972-09-04 Asea Ab
AT327332B (de) * 1973-01-05 1976-01-26 Siemens Ag Steueranordnung fur eine energieverteilungsanlage zur kompensation von blindleistung
AT332940B (de) * 1973-04-05 1976-10-25 Bbc Brown Boveri & Cie Zwangsloschbare stromrichteranordnung fur einen aus einem ein- oder mehrphasigen wechselspannungsnetz gespeisten gleichstromverbraucher
US3936727A (en) * 1973-10-12 1976-02-03 General Electric Company High speed control of reactive power for voltage stabilization in electric power systems
US3940687A (en) * 1974-05-02 1976-02-24 Enver Bejukovich Akhundov Method for controlling active power distribution in power transmission lines and a controller for effecting same

Also Published As

Publication number Publication date
NO144051C (no) 1981-06-10
CH612020A5 (en:Method) 1979-06-29
BR7506382A (pt) 1976-08-17
NO144051B (no) 1981-03-02
SE408733B (sv) 1979-07-02
DE2446943A1 (de) 1976-04-15
NO753308L (en:Method) 1976-04-05
SE7510955L (sv) 1976-04-05
DE2446943C2 (de) 1982-06-16
US4041370A (en) 1977-08-09

Similar Documents

Publication Publication Date Title
CA1068824A (en) Root mean square detector
JP3133386B2 (ja) 交流母線に供給するための電流源変換装置用制御装置
US4459534A (en) Method for controlling induction motor and apparatus therefor
USRE28986E (en) Static inverter wherein a plurality of square waves are so summed as to produce a sinusoidal output wave
US5091839A (en) Method and apparatus for supplying voltage to a three-phase voltage system having a load-carrying neutral conductor with a pulse width modulated three phase invertor
CA1048107A (en) Method and apparatus for the static compensation of reactive power
US3343063A (en) Variable frequency converter with volts per cycle per second regulation
US3278827A (en) Static inverter
US5204606A (en) Induction motor control apparatus
US3470444A (en) Control circuit for rectifiers using silicon controlled rectifiers
US3458795A (en) Circuit for controlling the application of firing pulses to controlled devices in a static converter operating in the inversion mode
US3829759A (en) Means for generating reactive power
US3444457A (en) Voltage regulator system utilizing a center-tapped inductor
GB2258958A (en) Ac-dc converter for a d.c. voltage consumer and a method for supplying the consumer
US3329883A (en) Power control system with wide range phase control
US3424970A (en) Self-regulated rapid response phase-controlled rectifier
US3641418A (en) Frequency conversion system
US3686558A (en) Control for frequency converters
GB1352949A (en) Feedback controls for cycloconverters
US3444451A (en) Closed loop motor control system
US3708739A (en) Regulated electrical inverter system
US3390321A (en) Poly-phase regulated rectifier
US2680831A (en) Synchronous electric switching apparatus
JPS6194585A (ja) Ｐｗｍインバ−タの制御装置
US3584286A (en) Phase shift circuit for phase controlled rectifiers