JP2022539177A - 共振回路付きアーク炉電源 - Google Patents
共振回路付きアーク炉電源 Download PDFInfo
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- JP2022539177A JP2022539177A JP2021577569A JP2021577569A JP2022539177A JP 2022539177 A JP2022539177 A JP 2022539177A JP 2021577569 A JP2021577569 A JP 2021577569A JP 2021577569 A JP2021577569 A JP 2021577569A JP 2022539177 A JP2022539177 A JP 2022539177A
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- 239000003990 capacitor Substances 0.000 claims abstract description 23
- 238000010891 electric arc Methods 0.000 claims abstract description 16
- 230000001939 inductive effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- 230000001276 controlling effect Effects 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
- H02M5/12—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/06—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using impedances
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M5/2573—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
- H05B7/148—Automatic control of power
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Control Of Electrical Variables (AREA)
- Inverter Devices (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
- Ac-Ac Conversion (AREA)
Abstract
Description
10 アーク炉
12 電源システム
14 電極
16 容器
18 機械アクチュエータ
20 AC入力
22 電気グリッド
24 AC出力
26 変圧器
28a 一次側相
28b 一次側相
28c 一次側相
30a 二次側相
30b 二次側相
30c 二次側相
32 能動誘導性リアクトル
34 補償コンバータ
36 高調波フィルタ
36a フィルタ構成要素
36b フィルタ構成要素
36c フィルタ構成要素
36d フィルタ構成要素
38 フィルタキャパシタ
40 フィルタインダクタ
42 ラインフィルタ
44 フィルタインダクタ
46a 共振回路
46b 共振回路
46c 共振回路
48 受動フィルタ及び/又はリアクトル
50 受動フィルタ及び/又はリアクトル
52 フィルタインダクタ
54 制御装置
56 回路入力
58 回路出力
60 バイパススイッチ
62 インダクタ
64 キャパシタ
66 主インダクタ
68 サイリスタ
70 分岐
72 入力
74 出力
76 バイパススイッチ
78 インダクタ
82 サイリスタ
Claims (15)
- 電気アーク炉(10)用の電源システム(12)であって、前記電源システム(12)は、
電気グリッド(22)に接続可能なAC入力(20)と、前記電気アーク炉(10)の少なくとも1つの電力電極(14)に供給するためのAC出力(24)と、
前記AC入力(20)と前記AC出力(24)との間に相互接続された共振回路(46a、46b、46c)と、
を備え、
前記共振回路(46a、46b、46c)は、前記共振回路(46a、46b、46c)の回路入力(56)及び回路出力(58)を接続及び切断するための制御可能なバイパススイッチ(60)を備え、
前記共振回路(46a、46b、46c)は、前記バイパススイッチ(60)と並列に接続されているキャパシタ(64)及び主インダクタ(66)を備え、
前記電源システム(12)は、前記バイパススイッチ(60)が閉じられたときに、循環電流が前記共振回路(46a、46b、46c)において形成されるように、前記バイパススイッチ(60)を制御するための制御装置(54)を備え、前記電源システム(12)を通る電流を低下させる、電源システム(12)。 - 更なるインダクタ(62)が、前記回路入力(56)と前記回路出力(58)との間で前記バイパススイッチ(60)と直列に接続されている、請求項1に記載の電源システム(12)。
- 前記更なるインダクタ(62)は、前記キャパシタ(64)及び前記主インダクタ(66)と並列に接続されており、及び/又は
前記キャパシタ(64)及び前記主インダクタ(66)は、直列に接続されている、請求項2に記載の電源システム(12)。 - 前記主インダクタ(66)は、前記更なるインダクタ(62)よりも高いインダクタンスを有する、請求項2又は3に記載の電源システム(12)。
- 前記バイパススイッチ(60)は、半導体スイッチ(68)で構成されており、及び/又は
前記バイパススイッチ(60)は、双方向スイッチである、請求項1~4のいずれか一項に記載の電源システム(12)。 - 前記バイパススイッチ(60)は、2つの逆並列半導体スイッチ(68)を備え、及び/又は
前記バイパススイッチ(60)は、2つの逆並列サイリスタ(68)を備える、請求項1~5のいずれか一項に記載の電源システム(12)。 - 前記AC入力(20)と前記共振回路(46a、46b、46c)との間に相互接続された変圧器(26)、又は
前記共振回路(46a、46b、46c)と前記AC出力(24)との間に相互接続された変圧器、
を更に備える、請求項1~6のいずれか一項に記載の電源システム(12)。 - 前記AC入力(20)において相互接続された高調波フィルタ(36)を更に備え、
前記高調波フィルタ(36)は、少なくとも2つのフィルタ構成要素(36a、36b、36c、36d)を備え、その各々は、フィルタキャパシタ(38)とフィルタインダクタ(40)とを備え、その各々は、AC入力電圧の別の高次高調波に適合されている、請求項1~7のいずれか一項に記載の電源システム(12)。 - 前記AC入力(20)に相互接続された能動誘導性リアクトル(32)、ここにおいて、前記能動誘導性リアクトル(32)は、前記AC入力(20)に接続されたバイパススイッチ(76)及びインダクタ(78)を備えており、及び/又は
前記AC入力(20)に相互接続された補償コンバータ(34)、
を更に備え、
前記能動誘導性リアクトル(32)及び/又は前記補償コンバータ(34)は、前記AC入力(20)におけるフリッカを最小化するように制御される、
請求項1~8のいずれか一項に記載の電源システム(12)。 - 前記AC入力(20)は、少なくとも2つの相(28a、28b、28c)を有し、及び/又は、前記AC出力は、少なくとも2つの相(30a、30b、30c)を有し、
共振回路(46a、46b、46c)が、前記AC入力(20)のそれぞれの相(28a、28b、28c)と、及び/又は前記AC出力(24)のそれぞれの相(30a、30b、30c)と相互接続されている、請求項1~9のいずれか一項に記載の電源システム(12)。 - 請求項1~10のいずれか一項に記載の電源システム(12)を制御するための方法であって、前記方法は、
前記少なくとも1つの電力電極(14)に供給される電極電流を決定することと、
前記電極電流が定義された電流に調整されるように、前記バイパススイッチ(60)を制御することと、ここにおいて、前記バイパススイッチ(60)が閉じられたときに、循環電流が前記共振回路(46a、46b、46c)において形成され、前記電源システム(12)を通る電流を低下させるものであり、
を備える、方法。 - 前記バイパススイッチ(60)のデューティサイクルが、前記電極電流を制御するように調整される、請求項11に記載の方法。
- 前記共振回路(46a、46b、46c)における過電圧及び/又はサージ電流を検出することと、
前記過電圧及び/又はサージ電流が検出されたときに、前記バイパススイッチ(60)を開くこと及び/又は閉じることによって、前記バイパススイッチ(60)を用いて前記共振回路(46a、46b、46c)を保護することと、
を更に備える、請求項11又は12に記載の方法。 - 請求項11~13に記載の方法を実行するように適合された、請求項1~10のいずれか一項に記載の電源システム(12)を有する電気アーク炉(10)のための制御装置(54)。
- 請求項1~10のいずれか一項に記載の電源システム(12)と、
金属材料を受容するための容器(16)と、
前記電源システム(12)から電流が供給されたときに、前記金属材料を溶融させるための電力電極(14)と、
を備える電気アーク炉(10)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19182898.7A EP3758211A1 (en) | 2019-06-27 | 2019-06-27 | Arc furnace power supply with resonant circuit |
EP19182898.7 | 2019-06-27 | ||
PCT/EP2020/062915 WO2020259907A1 (en) | 2019-06-27 | 2020-05-08 | Arc furnace power supply with resonant circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022539177A true JP2022539177A (ja) | 2022-09-07 |
JP7500625B2 JP7500625B2 (ja) | 2024-06-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2021577569A Active JP7500625B2 (ja) | 2019-06-27 | 2020-05-08 | 共振回路付きアーク炉電源 |
Country Status (11)
Country | Link |
---|---|
US (1) | US11658585B2 (ja) |
EP (2) | EP3758211A1 (ja) |
JP (1) | JP7500625B2 (ja) |
KR (1) | KR20220025726A (ja) |
CN (1) | CN114026775B (ja) |
AU (1) | AU2020306352B2 (ja) |
BR (1) | BR112021023662A2 (ja) |
CA (1) | CA3141670C (ja) |
ES (1) | ES2938322T3 (ja) |
WO (1) | WO2020259907A1 (ja) |
ZA (1) | ZA202109365B (ja) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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IT1236363B (it) * | 1989-11-30 | 1993-02-25 | Danieli Off Mecc | Forno elettrico ad arco diretto a corrente controllata e procedimento di alimentazione a corrente controllata di un forno ad arco diretto |
DE4232585A1 (de) | 1992-09-23 | 1994-03-24 | Mannesmann Ag | Dreiphasige Lichtbogenofenanlage mit Drossel |
US6274851B1 (en) * | 1999-08-31 | 2001-08-14 | Inverpower Controls Ltd. | Electric arc furnace controller |
WO2001053434A1 (en) | 2000-01-21 | 2001-07-26 | Integrated Environmental Technologies, Llc. | Methods and apparatus for treating waste |
US6603795B2 (en) | 2001-02-08 | 2003-08-05 | Hatch Associates Ltd. | Power control system for AC electric arc furnace |
US6573691B2 (en) | 2001-10-17 | 2003-06-03 | Hatch Associates Ltd. | Control system and method for voltage stabilization in electric power system |
DE102005051232A1 (de) | 2005-10-26 | 2007-05-03 | Sms Demag Ag | Steuervorrichtung für Wechselstrom-Reduktionsöfen |
US20120314728A1 (en) * | 2011-06-08 | 2012-12-13 | Warner Power Llc | System and method to deliver and control power to an arc furnace |
EP3303959B1 (en) * | 2015-06-05 | 2020-10-14 | Hatch Ltd. | Flicker control for electric arc furnace |
WO2017085330A1 (de) | 2015-11-19 | 2017-05-26 | Sms Group Gmbh | Energieversorgungssystem für einen elektroofen |
KR20170135337A (ko) * | 2016-05-31 | 2017-12-08 | 엘에스산전 주식회사 | 무효 전력 보상 시스템 및 그 방법 |
EP3297403A1 (de) * | 2016-09-15 | 2018-03-21 | Primetals Technologies Germany GmbH | Umrichtergespeister lichtbogenofen mit kondensatoranordnung im sekundärkreis |
WO2018176119A1 (en) | 2017-03-31 | 2018-10-04 | Hatch Ltd. | Open arc condition mitigation based on measurement |
WO2019084674A1 (en) * | 2017-10-31 | 2019-05-09 | Hatch Ltd. | Line control circuit configuration |
EP3758446A1 (en) * | 2019-06-27 | 2020-12-30 | ABB Schweiz AG | Arc furnace power supply with converter circuit |
-
2019
- 2019-06-27 EP EP19182898.7A patent/EP3758211A1/en not_active Withdrawn
-
2020
- 2020-05-08 KR KR1020217041086A patent/KR20220025726A/ko active Search and Examination
- 2020-05-08 CA CA3141670A patent/CA3141670C/en active Active
- 2020-05-08 AU AU2020306352A patent/AU2020306352B2/en active Active
- 2020-05-08 BR BR112021023662A patent/BR112021023662A2/pt unknown
- 2020-05-08 US US17/622,439 patent/US11658585B2/en active Active
- 2020-05-08 EP EP20723168.9A patent/EP3991287B1/en active Active
- 2020-05-08 WO PCT/EP2020/062915 patent/WO2020259907A1/en active Application Filing
- 2020-05-08 JP JP2021577569A patent/JP7500625B2/ja active Active
- 2020-05-08 ES ES20723168T patent/ES2938322T3/es active Active
- 2020-05-08 CN CN202080046504.0A patent/CN114026775B/zh active Active
-
2021
- 2021-11-22 ZA ZA2021/09365A patent/ZA202109365B/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3991287B1 (en) | 2022-11-16 |
ES2938322T3 (es) | 2023-04-10 |
AU2020306352B2 (en) | 2022-12-22 |
KR20220025726A (ko) | 2022-03-03 |
US11658585B2 (en) | 2023-05-23 |
US20220352828A1 (en) | 2022-11-03 |
CN114026775A (zh) | 2022-02-08 |
BR112021023662A2 (pt) | 2022-01-04 |
ZA202109365B (en) | 2022-10-26 |
EP3991287A1 (en) | 2022-05-04 |
JP7500625B2 (ja) | 2024-06-17 |
WO2020259907A1 (en) | 2020-12-30 |
CA3141670A1 (en) | 2020-12-30 |
CN114026775B (zh) | 2022-11-01 |
CA3141670C (en) | 2022-06-14 |
EP3758211A1 (en) | 2020-12-30 |
AU2020306352A1 (en) | 2021-12-16 |
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