JP6389945B1 - インバータ用負荷異常検出回路 - Google Patents
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- JP6389945B1 JP6389945B1 JP2017212183A JP2017212183A JP6389945B1 JP 6389945 B1 JP6389945 B1 JP 6389945B1 JP 2017212183 A JP2017212183 A JP 2017212183A JP 2017212183 A JP2017212183 A JP 2017212183A JP 6389945 B1 JP6389945 B1 JP 6389945B1
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- 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
- G01R31/40—Testing power supplies
- G01R31/42—AC power supplies
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the output circuit, e.g. short circuit
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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
- 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
- H02M5/40—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 with intermediate conversion into dc
- H02M5/42—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 with intermediate conversion into dc by static converters
- H02M5/44—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/443—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
- H02M5/45—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M5/452—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform
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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
- 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
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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
- 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
- H02M7/539—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 with automatic control of output wave form or frequency
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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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
- 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
- H02M5/40—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 with intermediate conversion into dc
- H02M5/42—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 with intermediate conversion into dc by static converters
- H02M5/44—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices 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
- 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
- H02M7/4815—Resonant converters
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- 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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
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- General Physics & Mathematics (AREA)
- Inverter Devices (AREA)
Abstract
【解決手段】スイッチング素子として自己消弧素子31を有するとともに位相同期ループで出力周波数が負荷の共振周波数となるように制御されるインバータの運転中に前記負荷の異常を検出するインバータ用負荷異常検出回路50は、自己消弧素子31のオンオフを制御するゲート電圧信号Vgと、負荷2に与えられるインバータの出力電流I1との位相ずれを検出し、この位相ずれに基づき第1負荷異常信号を送出する位相ずれ検出手段を備える。
【選択図】図1
Description
31 自己消弧素子としてのMOSFET
40 位相同期ループとしてのPLL回路
50 負荷異常検出回路
53 位相ずれ検出手段としてのデータフリップフロップ
55 マスク手段を構成する比較器
56 マスク手段を構成する反転器
57 マスク手段を構成する可変抵抗器
60 電流低下検出手段
61 比較器
62 時限手段としてのタイマ
63 マスク手段としてのAND回路
Claims (8)
- スイッチング素子として自己消弧素子を有するとともに位相同期ループで出力周波数が負荷の共振周波数となるように制御されるインバータの運転中に前記負荷の異常を検出するインバータ用負荷異常検出回路であって、
前記自己消弧素子に与えられ、前記自己消弧素子のオンオフを制御するゲート電圧信号の位相と、前記負荷に与えられる前記インバータの出力電流との位相ずれを検出し、この位相ずれに基づき第1負荷異常信号を送出する位相ずれ検出手段を備えるインバータ用負荷異常検出回路。 - 請求項1記載のインバータ用負荷異常検出回路であって、
前記位相ずれ検出手段に入力される前記ゲート電圧信号の波形を整える波形整形器と、
前記位相ずれ検出手段に入力される前記出力電流の波形を整える波形整形器と、
を備えるインバータ用負荷異常検出回路。 - 請求項1又は2記載のインバータ用負荷異常検出回路であって、
前記ゲート電圧信号に対する前記自己消弧素子の応答遅れ時間は、前記インバータの出力周波数における半周期より小さいインバータ用負荷異常検出回路。 - 請求項1から3のいずれか一項記載のインバータ用負荷異常検出回路であって、
前記位相ずれ検出手段として、クロック信号と同時に入力されるデータ信号によりセット状態となり、セット状態の信号であるセット出力を送出するデータフリップフロップが設けられているインバータ用負荷異常検出回路。 - 請求項4に記載のインバータ用負荷異常検出回路であって、
前記データフリップフロップには、前記セット状態からリセット状態へ移行させるリセット信号が入力されるリセット入力が設けられており、
前記負荷に与えられる出力電流の電流値と、予め設定された基準値とを比較し、前記電流値が前記基準値よりも大きくなるまで、前記データフリップフロップへ前記リセット信号を出力し続けるマスク手段をさらに備えるインバータ用負荷異常検出回路。 - 請求項1から5のいずれか一項記載のインバータ用負荷異常検出回路であって、
前記負荷に与えられる前記インバータの出力電流の電流値と、予め設定された基準値とを比較し、前記基準値よりも前記電流値が小さくなると第2負荷異常信号を送出する電流低下検出手段をさらに備えるインバータ用負荷異常検出回路。 - 請求項6に記載のインバータ用負荷異常検出回路であって、
前記電流低下検出手段からの前記第2負荷異常信号が入力され、当該第2負荷異常信号が所定の時間以上継続したときのみ、当該第2負荷異常信号を出力する時限手段が設けられているインバータ用負荷異常検出回路。 - 請求項7に記載のインバータ用負荷異常検出回路であって、
前記インバータの運転信号が入力されるとともに、この運転信号が入力されたときのみ、前記第2負荷異常信号を出力するマスク手段が設けられているインバータ用負荷異常検出回路。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017212183A JP6389945B1 (ja) | 2017-11-01 | 2017-11-01 | インバータ用負荷異常検出回路 |
TW106143567A TWI660185B (zh) | 2017-11-01 | 2017-12-12 | 反向器用負載異常檢測電路 |
KR1020207010947A KR20200081364A (ko) | 2017-11-01 | 2018-08-23 | 인버터 용 부하 이상 검출 회로 |
PCT/JP2018/031233 WO2019087542A1 (en) | 2017-11-01 | 2018-08-23 | Load abnormality detecting circuit for inverter |
CN201880071200.2A CN111295827B (zh) | 2017-11-01 | 2018-08-23 | 用于逆变器的负载异常检测电路 |
EP18766058.4A EP3704788A1 (en) | 2017-11-01 | 2018-08-23 | Load abnormality detecting circuit for inverter |
KR1020227028043A KR20220119178A (ko) | 2017-11-01 | 2018-08-23 | 인버터 용 부하 이상 검출 회로 |
US16/758,147 US11719758B2 (en) | 2017-11-01 | 2018-08-23 | Load abnormality detecting circuit for inverter |
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JP2017212183A JP6389945B1 (ja) | 2017-11-01 | 2017-11-01 | インバータ用負荷異常検出回路 |
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JP6389945B1 true JP6389945B1 (ja) | 2018-09-12 |
JP2019088044A JP2019088044A (ja) | 2019-06-06 |
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JP2017212183A Active JP6389945B1 (ja) | 2017-11-01 | 2017-11-01 | インバータ用負荷異常検出回路 |
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Country | Link |
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US (1) | US11719758B2 (ja) |
EP (1) | EP3704788A1 (ja) |
JP (1) | JP6389945B1 (ja) |
KR (2) | KR20200081364A (ja) |
CN (1) | CN111295827B (ja) |
TW (1) | TWI660185B (ja) |
WO (1) | WO2019087542A1 (ja) |
Cited By (1)
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CN110620520A (zh) * | 2019-10-30 | 2019-12-27 | 渤海大学 | 串联谐振逆变电源功率因数角控制系统 |
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EP3584915B1 (de) * | 2018-06-20 | 2023-12-20 | Siemens Aktiengesellschaft | Eingangsschaltung für eine stromversorgung |
CN114355236A (zh) * | 2021-11-29 | 2022-04-15 | 漳州科华技术有限责任公司 | 整流逆变电路的检测方法、装置及不间断电源 |
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JP6356416B2 (ja) * | 2013-12-19 | 2018-07-11 | 株式会社ダイヘン | インバータ回路の制御回路、この制御回路を備えたインバータ装置、このインバータ装置を備えた誘導加熱装置、および、制御方法 |
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2017
- 2017-11-01 JP JP2017212183A patent/JP6389945B1/ja active Active
- 2017-12-12 TW TW106143567A patent/TWI660185B/zh active
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2018
- 2018-08-23 KR KR1020207010947A patent/KR20200081364A/ko not_active IP Right Cessation
- 2018-08-23 CN CN201880071200.2A patent/CN111295827B/zh active Active
- 2018-08-23 US US16/758,147 patent/US11719758B2/en active Active
- 2018-08-23 EP EP18766058.4A patent/EP3704788A1/en not_active Ceased
- 2018-08-23 KR KR1020227028043A patent/KR20220119178A/ko not_active Application Discontinuation
- 2018-08-23 WO PCT/JP2018/031233 patent/WO2019087542A1/en unknown
Patent Citations (5)
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JPH06284736A (ja) * | 1993-03-31 | 1994-10-07 | Kubota Corp | 誘導融着用電源装置 |
JPH07177757A (ja) * | 1993-12-21 | 1995-07-14 | High Frequency Heattreat Co Ltd | 電流供給型インバータのフェイズトリップ回路及びその信号整形回路 |
JPH11235044A (ja) * | 1998-02-16 | 1999-08-27 | High Frequency Heattreat Co Ltd | インバータ用負荷異常検出回路 |
JP2003086342A (ja) * | 2001-09-14 | 2003-03-20 | Toshiba Corp | 誘導加熱調理器 |
JP2007159174A (ja) * | 2005-11-30 | 2007-06-21 | Denki Kogyo Co Ltd | インバータ回路保護手段を有するインバータ装置およびその制御方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110620520A (zh) * | 2019-10-30 | 2019-12-27 | 渤海大学 | 串联谐振逆变电源功率因数角控制系统 |
CN110620520B (zh) * | 2019-10-30 | 2021-03-26 | 渤海大学 | 串联谐振逆变电源功率因数角控制系统 |
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KR20200081364A (ko) | 2020-07-07 |
KR20220119178A (ko) | 2022-08-26 |
TWI660185B (zh) | 2019-05-21 |
US11719758B2 (en) | 2023-08-08 |
WO2019087542A1 (en) | 2019-05-09 |
CN111295827B (zh) | 2024-04-19 |
TW201918722A (zh) | 2019-05-16 |
CN111295827A (zh) | 2020-06-16 |
US20200284847A1 (en) | 2020-09-10 |
EP3704788A1 (en) | 2020-09-09 |
JP2019088044A (ja) | 2019-06-06 |
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