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FI911203A0 - ANORDINATION FOR MAINTENANCE OF EFFECTIVE EFFECTS AND ELDER REACTIVING EFFECTS WITH REFERENCE FORMAL FOREIGN LIQUID. - Google Patents

ANORDINATION FOR MAINTENANCE OF EFFECTIVE EFFECTS AND ELDER REACTIVING EFFECTS WITH REFERENCE FORMAL FOREIGN LIQUID.

Info

Publication number
FI911203A0
FI911203A0 FI911203A FI911203A FI911203A0 FI 911203 A0 FI911203 A0 FI 911203A0 FI 911203 A FI911203 A FI 911203A FI 911203 A FI911203 A FI 911203A FI 911203 A0 FI911203 A0 FI 911203A0
Authority
FI
Finland
Prior art keywords
effects
real
reactive power
reactiving
anordination
Prior art date
Application number
FI911203A
Other languages
Finnish (fi)
Other versions
FI911203A7 (en
Inventor
Friedemann Fries
Ulrich Link
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI911203A0 publication Critical patent/FI911203A0/en
Publication of FI911203A7 publication Critical patent/FI911203A7/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inverter Devices (AREA)
  • General Induction Heating (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Control Of Electrical Variables (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The invention relates to a device (4) for measuring real and/or reactive power (PW, PB) at one phase (U, V, W) of an inverter (2), a measurement signal (iU, iV, iW) corresponding to the phase current being connected, directly for detecting the real power (PW) or after phase rotation by pi /2 for detecting the reactive power (PB), to a switch (8, 10, 12 respectively, 18, 20, 22) which can be operated by means of a control signal, the real or reactive power (PW and PB, respectively) corresponding to a smoothed output signal of a ripple section (14 and 24, respectively). According to the invention, the actual switching state (ZU, ZV, ZW) of the converter valve (TU1 to TW2), operating on this phase (U, V, W), of the inverter (2) is provided as control signal, these switching state signals (ZU, ZV, ZW) in each case being determined by means of a detection device (26, 28, 30). This provides a device (4) for detecting real and/or reactive power, in which measurement errors due to dead times and/or switching times are avoided. <IMAGE>
FI911203A 1990-04-06 1991-03-12 ANORDNING FOER MAETNING AV AVGIVEN EFFEKT OCH/ELLER REAKTIV EFFEKT VID VAEXELRIKTARE ANFATTANDE FORCERAD LIKSTROEM. FI911203A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90106585A EP0455839B1 (en) 1990-04-06 1990-04-06 Circuit for measuring of the real and/or reactive power at a converter with impressed direct voltage

Publications (2)

Publication Number Publication Date
FI911203A0 true FI911203A0 (en) 1991-03-12
FI911203A7 FI911203A7 (en) 1991-10-07

Family

ID=8203864

Family Applications (1)

Application Number Title Priority Date Filing Date
FI911203A FI911203A7 (en) 1990-04-06 1991-03-12 ANORDNING FOER MAETNING AV AVGIVEN EFFEKT OCH/ELLER REAKTIV EFFEKT VID VAEXELRIKTARE ANFATTANDE FORCERAD LIKSTROEM.

Country Status (4)

Country Link
EP (1) EP0455839B1 (en)
AT (1) ATE100940T1 (en)
DE (1) DE59004440D1 (en)
FI (1) FI911203A7 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7602327B2 (en) * 2007-05-08 2009-10-13 Telefonaktiebolaget Lm Ericsson (Publ) Digitally controllable on-chip resistors and methods
GB2556946A (en) * 2016-11-29 2018-06-13 Bombardier Primove Gmbh A method and a device for determining a switching current of a converter and a method of control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT392177B (en) * 1984-05-04 1991-02-11 Siemens Ag DEVICE FOR DETECTING THE TORQUE PERFORMANCE ON A PHASE OF AN INVERTER WITH A PRESET INPUT DC VOLTAGE, IN PARTICULAR A PULSE INVERTER
DE3625011A1 (en) * 1985-11-08 1987-05-21 Aeg Elotherm Gmbh Device for measuring the active power in a load circuit, constructed as resonance circuit, of an electrical static converter

Also Published As

Publication number Publication date
ATE100940T1 (en) 1994-02-15
EP0455839A1 (en) 1991-11-13
EP0455839B1 (en) 1994-01-26
DE59004440D1 (en) 1994-03-10
FI911203A7 (en) 1991-10-07

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Legal Events

Date Code Title Description
FD Application lapsed