WO2009138808A1 - Filtre de puissance actif monophasé à shunt à tension de condensateur d’un filtre adaptatif - Google Patents

Filtre de puissance actif monophasé à shunt à tension de condensateur d’un filtre adaptatif Download PDF

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Publication number
WO2009138808A1
WO2009138808A1 PCT/HR2009/000004 HR2009000004W WO2009138808A1 WO 2009138808 A1 WO2009138808 A1 WO 2009138808A1 HR 2009000004 W HR2009000004 W HR 2009000004W WO 2009138808 A1 WO2009138808 A1 WO 2009138808A1
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WO
WIPO (PCT)
Prior art keywords
filter capacitor
voltage
active power
filter
capacitor voltage
Prior art date
Application number
PCT/HR2009/000004
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English (en)
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WO2009138808A4 (fr
Inventor
Sasa Sladic
Original Assignee
Sasa Sladic
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 Sasa Sladic filed Critical Sasa Sladic
Publication of WO2009138808A1 publication Critical patent/WO2009138808A1/fr
Publication of WO2009138808A4 publication Critical patent/WO2009138808A4/fr

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Classifications

    • 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
    • H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
    • 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
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • 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
    • Y02E40/20—Active power filtering [APF]
    • 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

Definitions

  • This invention targets single-phase shunt active power filter.
  • This circuit has been used for improvement of power factor and as an interface for connecting the renewable energy sources to the electric distribution power network (e.g. 230 V/50 Hz).
  • Electronic converters which are used for power factor improvement and as an interfaces for renewable energy sources connection to distribution network are three- phase and single-phase bridge circuits. Supplied with appropriate algorithm both circuits could operate as a shunt active power filters. Selection of one solution implies generally, one concept of distribution network. Centralized, high voltage, three-phase systems represent an approach which is used in developed world today. In other hand, single-phase shunt active power filter is used in low power single-phase systems. So, it could be used in distributed power systems based on low power renewable energy sources. This issue could be found in literature as ..sustainable development", e.g.:
  • K. M. Smedley has more patents related to power converters and renewable energy sources.
  • Primary goal of invention is improving performances of single-phase shunt active power filter which has constant filter capacitor voltage by additional circuit which is used for voltage adoption.
  • Filter capacitor voltage is adopted to absolute line voltage (added with active power filter or filter capacitor current with appropriate sign).
  • switching voltage on four switches (S 1 , S 2 , S 3 and S 4 ) of single-phase shunt active power filter (Fig. 1) could be reduced.
  • two additional switches (S 5 , S 6 ) for voltage adoption has been added (e.g. Fig. 8) and once more (S 7 ) for operating power point selection of low voltage renewable energy source.
  • Single-phase shunt active power filter (Fig. 1) represents load current compensation current generator (Fig. 2). Its switches Si and S 2 are switching on distribution network frequency and switches S 3 and S 4 are switching on switching frequency which is typically around 2OkHz.
  • Filter capacitor voltage could be adopted to referent values obtained on different ways (Figs. 11 , 16 and 17).
  • the single-phase shunt active power filter acting as a current drain filter capacitor voltage should be close to value of absolute line voltage (1% to 15% higher).
  • the single-phase shunt active power filter with adaptive voltage is acting as a current source filter capacitor voltage should be approximately the same as in case with constant filter capacitor voltage (Fig. 8).
  • single-phase shunt active power filter with adaptive filter capacitor voltage has lower harmonic distortion comparing to classic single-phase shunt active power filter. It also has a circuit that is used for voltage adoption which has additional losses. So, it could be expected that single-phase shunt active power filter with adaptive filter capacitor voltage has decreased efficiency compared to classic single- phase shunt active power filter.
  • single-phase shunt active power filter with adaptive filter capacitor voltage (Fig. 8 or 15) has higher, efficiency (Fig. 7) than classic single-phase shunt active power filter. That is confirmed by simulations, as well by measurement. That could be explained by influence of adaptive voltage to switching conditions on switches in single-phase shunt active power filter (Fig. 1).
  • FIGs. 9 and 10 represent measured waveforms (load power 450 W), line voltage 230 V for single-phase shunt active power filter.
  • Single-phase shunt active power filter is connected with solar cells by additional DC (Boost) converter (Fig. 13).
  • Boost DC
  • Fig. 15 represents implementation of single-phase shunt active power filter with adaptive filter capacitor voltage which has all mentioned advantages.
  • This device has circuit for voltage adoption of filter capacitor voltage and additional Boost converter (L 2 , S 7 with appropriate control circuit) for solar cell voltage step-up.
  • Switching frequency of additional circuit for voltage adoption (Fig. 15) is 5 kHz instead of 20 kHz (Fig. 1 or Fig. 13). Conseguence is improved performance of device (decreased distortion of line current and increased efficiency-Fig. 7). If the switching frequency is higher than 5 kHz it is still possible to obtain line current distortion reduction but in that case efficiency of single-phase shunt active power filter with adaptive voltage of filter capacitor voltage is lower than of classic single-phase shunt active power filter (Fig. 1).
  • Fig. 16 is representing combination of Boost and Buck converter for inverting a renewable source voltage to network with additional Buck-Boost converter for maximum power point tracking.
  • Single-pole double-throw (SPDT) switch is using for MPPT function of solar cells when the optimal current of solar cells is lower than switch S5 current.
  • Single-pole double-throw switch could be realized with only one diode (simple solution) or by transistor switch and diode.
  • Single-pole double-throw switch has been marked by P (Fig. 17) and it has been used instead of electronic switches in order to obtain uniform definition of whole converter.
  • Combination of Boost and Buck converters for voltage adoption (elements S 5 , S 6 , L 2 , L 3 , C 2 , D 2 , D 5 , D 6 ) enables high values of filter capacitor current during its (Ci) charging.
  • Buck-Boost converter (S 7 , D 7 , L 3 ). Its function is to track solar cell/module to its maximum power operating point (MPPT). It is assumed that maximum power point solar cell/module current is higher than charging current of filter capacitor. Switch S 7 is turned on until maximum power point of solar cell is not reached. In this way a high values of solar cell currents could be achieved which is suitable for new technologies of solar cells.
  • Referent voltage of filter capacitor could be defined on different ways. In this case (Fig. 17) it has been shown how referent signal could be generated from line signal Vs and from filter current /> (determinates the sign of one component of filter capacitor voltage). That means capacitor C 2 is charging filter capacitor Ci when the single phase shunt active power filter is relieving its energy to the distribution network. Same function could be applied with measurement of current through filter capacitor (CO but in that case it is necessary to use a filter which brings error (,,dead time”) to process of filter capacitor reference determination.
  • Fig. 5 Measured waveforms of filter capacitor voltage during steady state (V 01 - channel C1), line voltage (V 5 - channel C2), 5 A / div, line current (/ s - channel C3), 5 A / div, and load current (/ L - channel C4), 5 A / div.
  • Fig. 6 Simulation of single-phase shunt active power filter - waveforms Fig. a) single-phase shunt active power filter (state of art) - constant filter capacitor voltage Fig. b) single-phase shunt active power filter with adaptive filter capacitor voltage (invention) (waveforms obtained with circuit shown in Fig. 8) Fig. 7. Efficiency versus power for nonlinear load of class D - printers, rectifiers, office equipment for single-phase shunt active power filter or APF (symbol •) and single-phase shunt active power filter with adaptive filter capacitor voltage APF-AV (symbol ⁇ )
  • Fig. 8 Single-phase shunt active power filter with adaptive filter capacitor voltage (v c1 - adaptive) (solution based on Boost and Buck converters)
  • Fig. 9 Measured waveforms of filter capacitor voltage (v C i- channel C1), line current (/ s - channel C3), filter capacitor current (channel C2) load current (/ L2 - channel C4), voltages 100 V/ div, currents 5 A/div.
  • Fig. 10 Measured waveforms of filter capacitor voltage (v C r channel C1), line current (Z 3 - channel C3), current through inductance L 2 (channel C2) load current (i L2 - channel C4), voltages 100 V/ div, currents S A/div.
  • Fig. 11 Single-phase shunt active power filter with adaptive filter capacitor voltage (solution based on two Buck-Boost converters)
  • Fig. 12 Measured waveforms of filter capacitor voltage (vci- channel C1), load current (/ s - channel C3), line voltage (channel C2) inductance L 2 current (i L2 - channel C4), voltages 100 V/div, currents 5 A/div.
  • Fig. 13 Single-phase shunt active power filter with solar cells (state of art)
  • Boost converter versus duty cycle D with ratio of load resistance and inductance parasitic resistance as a parameter (from the top of figure to the bottom mentioned ratio is changing as follows: 100:1, 50:1, 30:1, 20:1 and 10:1 - lowest trajectory for ratio 10:1 represents lowest efficiency of converter)
  • Fig. 15 Single-phase shunt active power filter with adaptive filter capacitor voltage and solar module
  • Fig. 16 Single-phase shunt active power filter with adaptive filter capacitor voltage (option with measurement of open circuit voltage of solar module)
  • Fig. 18 Microprocessor system based on TMS320LF2407 with Code Composer Studio (Texas Instruments) interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Electrical Variables (AREA)
  • Dc-Dc Converters (AREA)
  • Filters And Equalizers (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Un filtre de puissance actif monophasé à tension de condensateur d’un filtre adaptatif permet d’améliorer le facteur de puissance d’un réseau électrique, et peut servir d’interface pour connecter une source d’énergie renouvelable à un réseau de distribution électrique. Il est différent des filtres de puissance actifs monophasés classiques, car il possède un circuit de tension adaptative qui est capable d’adopter la tension de condensateur d’un filtre en fonction des conditions qui prévalent dans le réseau de distribution électrique. Cela permet en plus de réduire la distorsion harmonique du courant de phase et de faciliter la connexion de sources d’énergie renouvelable. Puisque le circuit supplémentaire permettant l’adoption d’une tension de condensateur d’un filtre provoque des pertes additionnelles dans le système, sa fréquence de commutation est limitée à 5 kHz. Grâce à l’approche basée sur la tension adaptative, il est possible de connecter des sources d’énergie renouvelable ayant des tensions plus basses qu’avec l’approche classique, donnant à un filtre de puissance actif monophasé la tension de condensateur d’un filtre constant.
PCT/HR2009/000004 2008-05-13 2009-02-20 Filtre de puissance actif monophasé à shunt à tension de condensateur d’un filtre adaptatif WO2009138808A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HRP20080209AA HRP20080209C1 (hr) 2008-05-13 2008-05-13 Jednofazni paralelni aktivni učinski filtar s adaptivnim naponom filterskog kondenzatora
HRP20080209A 2008-05-13

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WO2009138808A1 true WO2009138808A1 (fr) 2009-11-19
WO2009138808A4 WO2009138808A4 (fr) 2010-06-03

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102830268A (zh) * 2012-08-31 2012-12-19 天津理工大学 一种基于dsp的sapf的实时相移检测系统及其工作方法
FR2982680A1 (fr) * 2011-11-15 2013-05-17 Schneider Toshiba Inverter Procede et systeme de commande pour corriger les tensions a appliquer a une charge electrique
CN104065077A (zh) * 2014-06-01 2014-09-24 思源清能电气电子有限公司 串联电压补偿装置的控制方法
CN104617581A (zh) * 2015-03-05 2015-05-13 太原理工大学 一种四桥臂有源电力滤波器的软启动控制方法
US10396695B2 (en) 2017-04-18 2019-08-27 General Electric Company Method for protecting an electrical power system
US10587121B2 (en) 2017-05-23 2020-03-10 General Electric Company Electrical power systems and subsystems
US10763674B2 (en) 2017-09-29 2020-09-01 General Electric Company System and method for controlling cluster-based wind farms
US10778112B2 (en) 2018-04-04 2020-09-15 General Electric Company DFIG converter with active filter
US10784685B2 (en) 2017-05-08 2020-09-22 General Electric Company Electrical power systems and subsystems
US10784689B2 (en) 2017-05-08 2020-09-22 General Electric Company Electrical power systems and methods using distortion filters
US10951030B2 (en) 2017-05-05 2021-03-16 General Electric Company System and method for reactive power control of a wind farm
US11081891B2 (en) 2017-05-05 2021-08-03 General Electric Company Electrical power systems having reactive power and harmonic support components
US11736056B2 (en) 2019-05-30 2023-08-22 General Electric Company System and method for controlling harmonics in a renewable energy power system

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CN111130123A (zh) * 2019-12-30 2020-05-08 华中科技大学 一种并联型有源电力滤波器的自适应控制方法

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US5771161A (en) * 1997-01-10 1998-06-23 Northrop Grumman Corporation Uninterruptable capability for an active power line conditioner
WO2005062440A1 (fr) * 2003-12-15 2005-07-07 General Electric Company Convertisseur de puissance photovoltaique de configuration pour la compensation d'harmoniques de charge

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US5319535A (en) * 1993-08-19 1994-06-07 Westinghouse Electric Corp. Active power line conditioner having capability for rejection of common-mode disturbances
US5726504A (en) * 1996-05-24 1998-03-10 Pecukonis; Joseph P. Apparatus and method for adaptively canceling harmonic currents in a power line
US5771161A (en) * 1997-01-10 1998-06-23 Northrop Grumman Corporation Uninterruptable capability for an active power line conditioner
WO2005062440A1 (fr) * 2003-12-15 2005-07-07 General Electric Company Convertisseur de puissance photovoltaique de configuration pour la compensation d'harmoniques de charge

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982680A1 (fr) * 2011-11-15 2013-05-17 Schneider Toshiba Inverter Procede et systeme de commande pour corriger les tensions a appliquer a une charge electrique
WO2013072246A1 (fr) * 2011-11-15 2013-05-23 Schneider Toshiba Inverter Europe Sas Procédé et système de commande pour corriger les tensions à appliquer à une charge électrique
US9515578B2 (en) 2011-11-15 2016-12-06 Schneider Toshiba Inverter Europe Sas Control method and system for correcting the voltages to be applied to an electrical load
CN102830268A (zh) * 2012-08-31 2012-12-19 天津理工大学 一种基于dsp的sapf的实时相移检测系统及其工作方法
CN104065077A (zh) * 2014-06-01 2014-09-24 思源清能电气电子有限公司 串联电压补偿装置的控制方法
CN104617581A (zh) * 2015-03-05 2015-05-13 太原理工大学 一种四桥臂有源电力滤波器的软启动控制方法
US10396695B2 (en) 2017-04-18 2019-08-27 General Electric Company Method for protecting an electrical power system
US10951030B2 (en) 2017-05-05 2021-03-16 General Electric Company System and method for reactive power control of a wind farm
US11081891B2 (en) 2017-05-05 2021-08-03 General Electric Company Electrical power systems having reactive power and harmonic support components
US10784685B2 (en) 2017-05-08 2020-09-22 General Electric Company Electrical power systems and subsystems
US10784689B2 (en) 2017-05-08 2020-09-22 General Electric Company Electrical power systems and methods using distortion filters
US10587121B2 (en) 2017-05-23 2020-03-10 General Electric Company Electrical power systems and subsystems
US10763674B2 (en) 2017-09-29 2020-09-01 General Electric Company System and method for controlling cluster-based wind farms
US10778112B2 (en) 2018-04-04 2020-09-15 General Electric Company DFIG converter with active filter
US11736056B2 (en) 2019-05-30 2023-08-22 General Electric Company System and method for controlling harmonics in a renewable energy power system

Also Published As

Publication number Publication date
HRP20080209A2 (en) 2009-11-30
HRP20080209C1 (hr) 2018-08-10
WO2009138808A4 (fr) 2010-06-03
HRPK20080209B3 (en) 2010-10-31

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