JP2021507660A - インバータアセンブリのためのコンデンサ放電方法 - Google Patents
インバータアセンブリのためのコンデンサ放電方法 Download PDFInfo
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- 239000003990 capacitor Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000012546 transfer Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 40
- 230000008520 organization Effects 0.000 claims description 17
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
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- 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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
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- 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
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- 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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
-
- 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
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
-
- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
-
- 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
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration
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- 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
Abstract
Description
従って、例えば、放電されるコンデンサ及びDCリンクコンデンサの(公知の)静電容量を考慮することによって、入力又は出力回路編成のコンデンサの電荷がDCリンクコンデンサに移送された場合、DCリンクコンデンサがどれだけの電圧を取るかが特定される。電荷移送は、DCリンク電圧を監視しながら行われる。入力又は出力電圧が下限電圧値以下に低下することなく、特定された最大値に達した場合、方法は終了し、従って、インバータがPV発電機又は電力供給網から未だ切断されていないことを示すことができる。そうでなければ、方法が終了した後、インバータが実際にPV発電機又は電力供給網から切断されたことは確実である。その場合、入力又は出力回路編成のコンデンサは、同時に既に放電されている。
2 DC回路遮断器
3 入力線
4 インバータ
41 入力回路編成
42 DC/DCコンバータ
43 DCリンクコンデンサ
44 ブリッジ編成
45 出力回路編成
46 制御装置
5 出力線
6 AC回路遮断器
7 変圧器
8 電力供給網
Ue 入力における供給電圧(入力電圧)
Ua 出力における供給電圧(出力電圧)
Uz DC流リンク電圧
S1〜S9 方法ステップ
S11、S12、S71、S72、S81、S82 ケース
Claims (8)
- 電力供給網(8)に電流を供給するためのインバータ(4)の入力又は出力回路編成(41、45)のコンデンサを放電するための方法であって、
−前記入力又は出力回路編成(41、45)の接続部において供給電圧(Ue、Ua)を特定するステップと、
−前記インバータ(4)のDCリンクコンデンサ(43)のDCリンク電圧(Uz)を特定するステップと、
−前記測定された供給電圧(Ue、Ua)及び前記測定されたDCリンク電圧(Uz)に基づいて、前記DCリンクコンデンサ(43)の上限電圧値(Umax)を計算するステップと、
−前記入力又は出力回路編成(41、45)の前記コンデンサからのエネルギーを前記DCリンクコンデンサ(43)に移送するように、前記インバータ(4)の入力側DC/DCコンバータ(42)又は出力側ブリッジ編成(44)を動作させるステップであって、前記DCリンクコンデンサ(43)両端の前記電圧を監視するステップと、
−前記上限電圧値(Umax)を超えた場合は前記方法を終了するステップと、そうでなければ、
−前記コンデンサが下限電圧値(Umin)以下に放電されるまで、前記入力又は出力回路編成(41、45)の前記コンデンサから前記DCリンクコンデンサ(43)に前記エネルギーを移送し続けるステップと、
を有することを特徴とする方法。 - 請求項1に記載の方法において、前記上限電圧値(Umax)は、前記入力又は出力回路編成(41、45)の前記コンデンサの電荷の全てが損失なく前記DCリンクコンデンサ(43)に移送される場合に得られる計算された電圧であることを特徴とする方法。
- 請求項2に記載の方法において、正のオフセット電圧値が、前記上限電圧値(Umax)を特定するために、前記計算された電圧に更に追加されることを特徴とする方法。
- 請求項1乃至3の何れか1項に記載の方法において、放電される前記コンデンサは前記入力側DC/DCコンバータ(42)のエネルギー貯蔵であり、前記DC/DCコンバータ(42)は前記コンデンサを放電する昇圧型コンバータとして動作することを特徴とする方法。
- 請求項1乃至3の何れか1項に記載の方法において、放電される前記コンデンサは出力側フィルタ素子であり、前記ブリッジ編成(44)は前記コンデンサを放電する昇圧型コンバータとして動作することを特徴とする方法。
- 請求項1乃至5の何れか1項に記載の方法において、前記下限電圧値(Umin)は安全低電圧に相当することを特徴とする方法。
- 請求項1乃至6の何れか1項に記載の方法において、前記上限電圧値(Umax)を超えたことを理由に前記方法が終了した場合、信号が出力されることを特徴とする方法。
- 入力側DC/DCコンバータ(42)と、DCリンクコンデンサ(43)を有するDCリンクと、出力側ブリッジ編成(44)と、前記DC/DCコンバータ(42)及び/又は前記ブリッジ編成(44)の半導体スイッチング素子を動作させるための制御装置(46)も有するインバータ(4)であって、前記制御装置(46)は請求項1乃至7の何れか1項に記載の方法を実行するよう構成されることを特徴とするインバータ(4)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102017130882.2 | 2017-12-21 | ||
DE102017130882.2A DE102017130882A1 (de) | 2017-12-21 | 2017-12-21 | Wechselrichter und Betriebsverfahren für einen Wechselrichter |
PCT/EP2018/084994 WO2019121405A1 (de) | 2017-12-21 | 2018-12-14 | Verfahren zur kondensatorentladung fuer eine wechselrichteranorndung |
Publications (2)
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JP2021507660A true JP2021507660A (ja) | 2021-02-22 |
JP7410858B2 JP7410858B2 (ja) | 2024-01-10 |
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JP2020532971A Active JP7410858B2 (ja) | 2017-12-21 | 2018-12-14 | インバータアセンブリのためのコンデンサ放電方法 |
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US (1) | US11736001B2 (ja) |
EP (1) | EP3729624B1 (ja) |
JP (1) | JP7410858B2 (ja) |
CN (1) | CN111656659B (ja) |
DE (1) | DE102017130882A1 (ja) |
WO (1) | WO2019121405A1 (ja) |
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EP3605813A1 (de) * | 2018-07-30 | 2020-02-05 | Fronius International GmbH | Wechselrichter mit zwischenkreisschutz |
DE102019118927A1 (de) * | 2019-07-12 | 2021-01-14 | Vacon Oy | Gleichstromzwischenkreisladeanordnung und Verfahren zum Laden eines Gleichstromzwischenkreiskondensators |
CN111725981B (zh) * | 2020-07-22 | 2022-07-12 | 阳光电源股份有限公司 | 一种光伏逆变器、光伏系统及放电控制方法 |
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JP7410858B2 (ja) | 2024-01-10 |
CN111656659B (zh) | 2024-02-13 |
WO2019121405A1 (de) | 2019-06-27 |
DE102017130882A1 (de) | 2019-06-27 |
CN111656659A (zh) | 2020-09-11 |
US20200321852A1 (en) | 2020-10-08 |
EP3729624B1 (de) | 2021-06-02 |
US11736001B2 (en) | 2023-08-22 |
EP3729624A1 (de) | 2020-10-28 |
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