WO2005111858A3 - Systems and methods for the accurate and rapid estimation of time-varying signal components - Google Patents

Systems and methods for the accurate and rapid estimation of time-varying signal components Download PDF

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Publication number
WO2005111858A3
WO2005111858A3 PCT/US2005/016420 US2005016420W WO2005111858A3 WO 2005111858 A3 WO2005111858 A3 WO 2005111858A3 US 2005016420 W US2005016420 W US 2005016420W WO 2005111858 A3 WO2005111858 A3 WO 2005111858A3
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WO
WIPO (PCT)
Prior art keywords
frequency
signal
accurate
systems
methods
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Application number
PCT/US2005/016420
Other languages
French (fr)
Other versions
WO2005111858A2 (en
Inventor
Alexander Domijan Jr
Lin Tao
Original Assignee
Univ Florida
Alexander Domijan Jr
Lin Tao
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 Univ Florida, Alexander Domijan Jr, Lin Tao filed Critical Univ Florida
Publication of WO2005111858A2 publication Critical patent/WO2005111858A2/en
Publication of WO2005111858A3 publication Critical patent/WO2005111858A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/148—Wavelet transforms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G01R23/165—Spectrum analysis; Fourier analysis using filters
    • G01R23/167—Spectrum analysis; Fourier analysis using filters with digital filters

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  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Algebra (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

A signal processing method includes the steps of providing a non-symmetrical polynomial type real basis function having a low pass frequency property, and formulating a transform kernal having a band pass frequency property using the basis function. The transform kernal includes a positive scaling factor and a frequency modulation parameter and provides an adjustable time-frequency window based on the positive scaling factor and frequency modulation parameter. An inner product between the transform kernal and a signal to be analyzed is generated to produce a bandpass complex filtering output. At least one parameter associated with the signal to be analyzed is estimated from the bandpass complex filtering output, such as the amplitude of current/voltage, phase angle, frequency and power of fundamental or harmonic components in the case of an electrical power signal.
PCT/US2005/016420 2004-05-11 2005-05-11 Systems and methods for the accurate and rapid estimation of time-varying signal components WO2005111858A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57026804P 2004-05-11 2004-05-11
US60/570,268 2004-05-11

Publications (2)

Publication Number Publication Date
WO2005111858A2 WO2005111858A2 (en) 2005-11-24
WO2005111858A3 true WO2005111858A3 (en) 2007-05-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/016420 WO2005111858A2 (en) 2004-05-11 2005-05-11 Systems and methods for the accurate and rapid estimation of time-varying signal components

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WO (1) WO2005111858A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105533A (en) * 2011-11-09 2013-05-15 华北电力科学研究院有限责任公司 Intelligent analysis method and intelligent analysis system of sub-synchronous oscillation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055647A1 (en) 2008-10-30 2010-05-06 Bittner, Helmar, Prof. Dr.-Ing. Composite picture signal component detecting method, involves forming synthetic time signal from start values of sine components during cancellation of sine component, and determining number of iteration cycles based on abort criterion
CN106154035A (en) * 2016-06-20 2016-11-23 哈尔滨工业大学 A kind of quickly harmonic wave and harmonic detection method
CN111781421A (en) * 2019-04-05 2020-10-16 苏州建丞节能科技有限公司 Method for analyzing harmonic waves of power system and operation device thereof
CN112269058A (en) * 2020-10-16 2021-01-26 国网江苏省电力有限公司无锡供电分公司 Electric automobile direct current charging signal feature extraction method
CN112485522B (en) * 2020-12-09 2023-05-16 国网四川省电力公司电力科学研究院 Electric energy data perception-based flat-top window function synchronous phasor measurement method and device
CN116735957B (en) * 2023-06-07 2024-02-27 四川大学 Near-frequency harmonic wave and inter-harmonic wave measuring method and system considering main lobe overlapping interference

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
DOMIJAN A ET AL: "On the selection of appropriate wavelet filter bank for power quality monitoring", PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE POWERCON 2003 - SPECIAL THEME: BLACKOUT, 10-12 DECEMBER 2003, NEW YORK, USA, 10 December 2003 (2003-12-10), pages 17 - 21, XP008074366 *
LIN T ET AL: "A wavelet approach to real time estimation of power system frequency", PROCEEDINGS OF THE 40TH SICE ANNUAL CONFERENCE 2001 (SICE 2001), INTERNATIONAL SESSION PAPERS, 25-27 JULY 2001, NAGOYA, JAPAN, 25 July 2001 (2001-07-25), IEEE, pages 58 - 65, XP010573972, ISBN: 0-7803-7306-5 *
LIN T ET AL: "Novel indices for power quality measurement", PROCEEDINGS OF THE 11TH INTERNATIONAL CONFERENCE ON HARMONICS AND QUALITY OF POWER 2004, 12-15 SEPTEMBER 2004, LAKE PLACID, NY, USA, 12 September 2004 (2004-09-12), IEEE, pages 66 - 71, XP010777131, ISBN: 0-7803-8746-5 *
LIN T ET AL: "On power quality indices and real time measurement", IEEE TRANSACTIONS ON POWER DELIVERY, vol. 20, no. 4, October 2005 (2005-10-01), IEEE, pages 2552 - 2562, XP011139947 *
LIN T ET AL: "Real time measurement of power disturbances. Part 1: Survey and a novel complex filter approach", ELECTRIC POWER SYSTEMS RESEARCH, vol. 76, no. 12, August 2006 (2006-08-01), Elsevier, pages 1027 - 1032, XP005512407, ISSN: 0378-7796 *
LIN T ET AL: "Real-time measurement of power disturbances. Part 2: Implementation and evaluation of the novel complex filter/recursive algorithm", ELECTRIC POWER SYSTEMS RESEARCH, vol. 76, no. 12, August 2006 (2006-08-01), Elsevier, pages 1033 - 1039, XP005512408, ISSN: 0378-7796 *
LIN T ET AL: "Wavelet approach to power quality monitoring", PROCEEDINGS OF THE 27TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2001 (IECON'01), 29 NOVEMBER - 2 DECEMBER 2001, DENVER, CO, USA, vol. 1, 29 November 2001 (2001-11-29), IEEE, pages 670 - 675, XP010573594, ISBN: 0-7803-7108-9 *
MALLAT S G ET AL: "Matching pursuits with time-frequency dictionaries", IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol. 41, no. 12, December 1993 (1993-12-01), IEEE, pages 3397 - 3415, XP002164631, ISSN: 1053-587X *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105533A (en) * 2011-11-09 2013-05-15 华北电力科学研究院有限责任公司 Intelligent analysis method and intelligent analysis system of sub-synchronous oscillation
CN103105533B (en) * 2011-11-09 2015-05-20 华北电力科学研究院有限责任公司 Intelligent analysis method and intelligent analysis system of sub-synchronous oscillation

Also Published As

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