BR112022003326A2 - Método e inversor fotovoltaico para determinação da capacitância de sistema de um sistema fotovoltaico para a terra - Google Patents

Método e inversor fotovoltaico para determinação da capacitância de sistema de um sistema fotovoltaico para a terra

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Publication number
BR112022003326A2
BR112022003326A2 BR112022003326A BR112022003326A BR112022003326A2 BR 112022003326 A2 BR112022003326 A2 BR 112022003326A2 BR 112022003326 A BR112022003326 A BR 112022003326A BR 112022003326 A BR112022003326 A BR 112022003326A BR 112022003326 A2 BR112022003326 A2 BR 112022003326A2
Authority
BR
Brazil
Prior art keywords
photovoltaic
earth
determining
capacitance
voltage
Prior art date
Application number
BR112022003326A
Other languages
English (en)
Other versions
BR112022003326B1 (pt
Inventor
Fischereder Franz
Luger Andreas
Pernegger Christoph
Pirchenfellner Jürgen
Original Assignee
Fronius Int Gmbh
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 Fronius Int Gmbh filed Critical Fronius Int Gmbh
Publication of BR112022003326A2 publication Critical patent/BR112022003326A2/pt
Publication of BR112022003326B1 publication Critical patent/BR112022003326B1/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/04—Voltage dividers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Inverter Devices (AREA)
  • Control Of Electrical Variables (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Photovoltaic Devices (AREA)

Abstract

MÉTODO E INVERSOR FOTOVOLTAICO PARA DETERMINAÇÃO DA CAPACITÂNCIA DE SISTEMA DE UM SISTEMA FOTOVOLTAICO PARA A TERRA. A invenção refere-se a um método e a um inversor fotovoltaico (2) para determinação da capacitância de sistema (CPV) de um sistema fotovoltaico (1) em relação à terra (PE). De acordo com a invenção, a tensão requerida para a medição pode ser provida na forma da tensão de circuito intermediário (UZK) a partir do circuito intermediário (6), e o dispositivo de medição (13) é projetado para acionar um interruptor de curto-circuito de entrada (SBoost) para curto-circuitar a entrada CC (3) quando o separador CA (8) está aberto, de modo que a tensão do circuito intermediário (UZK) pode ser aplicada à entrada CC (3) na direção oposta, e o dispositivo de medição (13) é configurado para determinar a capacitância de sistema (CPV) a partir da forma de onda temporal da tensão de medição (UM2) após o interruptor (Siso) do divisor de tensão (14) ser fechado.
BR112022003326-5A 2020-03-11 2021-03-10 Método e inversor fotovoltaico para determinação da capacitância de sistema de um sistema fotovoltaico para a terra BR112022003326B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20162310.5 2020-03-11
EP20162310.5A EP3879283A1 (de) 2020-03-11 2020-03-11 Verfahren und photovoltaik-wechselrichter zur bestimmung der anlagenkapazität einer photovoltaik-anlage gegen erde
PCT/EP2021/055970 WO2021180754A1 (de) 2020-03-11 2021-03-10 Verfahren und photovoltaik-wechselrichter zur bestimmung der anlagenkapazität einer photovoltaik-anlage gegen erde

Publications (2)

Publication Number Publication Date
BR112022003326A2 true BR112022003326A2 (pt) 2022-10-11
BR112022003326B1 BR112022003326B1 (pt) 2023-11-14

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Country Status (8)

Country Link
US (1) US11656256B2 (pt)
EP (2) EP3879283A1 (pt)
CN (1) CN115210586B (pt)
AU (1) AU2021234993B2 (pt)
BR (1) BR112022003326B1 (pt)
ES (1) ES2932775T3 (pt)
PL (1) PL3980795T3 (pt)
WO (1) WO2021180754A1 (pt)

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EP3879277A1 (de) * 2020-03-11 2021-09-15 FRONIUS INTERNATIONAL GmbH Verfahren und photovoltaik-wechselrichter zur bestimmung des isolationswiderstands einer photovoltaik-anlage gegen erde
CN115133567A (zh) * 2021-03-27 2022-09-30 华为数字能源技术有限公司 光伏***和光伏***的漏电流控制方法
CN114280370B (zh) * 2021-11-19 2024-08-09 国网冀北电力有限公司张家口供电公司 一种用于新型光伏逆变器涉网运行性能的工程测试***
EP4203294A1 (de) 2021-12-23 2023-06-28 FRONIUS INTERNATIONAL GmbH Verfahren zum betreiben einer wechselrichter-anordnung und wechselrichter-anordnung zur durchführung des verfahrens
CN116722815B (zh) * 2023-08-08 2023-12-05 锦浪科技股份有限公司 一种pid效应抑制***及其控制方法以及光伏***

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JP2003158282A (ja) 2001-08-30 2003-05-30 Canon Inc 太陽光発電システム
JP5819602B2 (ja) * 2010-11-29 2015-11-24 Ｊｘ日鉱日石エネルギー株式会社 地絡検出装置、地絡検出方法、太陽光発電システム、及び地絡検出プログラム
DE102011050590A1 (de) * 2011-05-24 2012-11-29 Sma Solar Technology Ag Isolationsüberwachung mit einem Prüfsignal variabler Frequenz
CN102279318B (zh) * 2011-06-23 2013-04-17 广东易事特电源股份有限公司 光伏并网逆变器的对地绝缘电阻在线检测***
CN103208937A (zh) 2013-03-19 2013-07-17 广东工业大学 一种单相光伏并网逆变器
DE102013227174B4 (de) * 2013-12-27 2019-06-19 Fronius International Gmbh Vorrichtung und Verfahren zur Ermittlung eines Isolationswiderstandes einer Photovoltaikanlage
DE102015114916A1 (de) * 2015-09-07 2017-03-09 Robert Bosch Automotive Steering Gmbh Bestimmung der Zwischenkreiskapazität
CN106788216B (zh) * 2017-02-10 2020-01-24 阳光电源股份有限公司 一种光伏逆变***以及光伏逆变方法
DE102017113192B3 (de) 2017-06-14 2018-07-12 Sma Solar Technology Ag Einfehlersichere Isolationswiderstandsbestimmung in einer Photovoltaikanlage
DE102017129083A1 (de) 2017-12-06 2019-06-06 Sma Solar Technology Ag Fehlabschaltsicheres Betriebsverfahren für eine dezentrale Energieerzeugungsanlage

Also Published As

Publication number Publication date
PL3980795T3 (pl) 2023-01-09
CN115210586A (zh) 2022-10-18
AU2021234993A1 (en) 2022-06-23
ES2932775T3 (es) 2023-01-25
CN115210586B (zh) 2023-07-28
EP3879283A1 (de) 2021-09-15
US11656256B2 (en) 2023-05-23
EP3980795B1 (de) 2022-10-26
WO2021180754A1 (de) 2021-09-16
US20220334159A1 (en) 2022-10-20
AU2021234993B2 (en) 2023-04-27
BR112022003326B1 (pt) 2023-11-14
EP3980795A1 (de) 2022-04-13

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/03/2021, OBSERVADAS AS CONDICOES LEGAIS