JP2020514774A - 複合多機能リレーシステム及びその制御方法 - Google Patents
複合多機能リレーシステム及びその制御方法 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
- H02H3/162—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/46—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to frequency deviations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
-
- 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
- H02H7/08—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 dynamo-electric motors
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims (9)
- 交流電源を入力端子(10)で入力して負荷(20)に供給する交流回路のホットラインに回路で連結された複数のトライアック(ISO−A、ISO−B)と、複数のトライアック(ISO−A、ISO−B)の間に回路で連結された機械式リレー(KC)と、からなる電源制御手段(1);
前記交流回路のホットライン及び中性ラインに、それぞれ電流及び周波数信号を比較・分析できるように第1電流分類器(SH1)を通じて回路で連結された数個の演算増幅器(U1〜U4)からなる第1絶縁差動増幅器(2−1)、及び第2電流分類器(SH2)を通じて回路で連結された数個の演算増幅器(U5〜U8)からなる第2絶縁差動増幅器(2−2);
前記電源制御手段(1)で複数のトライアック(ISO−A、ISO−B)にそれぞれ回路で連結され、機械式リレー(KC)による電源供給を制御し、交流回路のホットライン及び中性ラインにそれぞれ設置された絶縁差動増幅器(2−1、2−2)にそれぞれ回路で連結され、ホットライン及び中性ラインの電流及び周波数信号をモニタリングするように構成されたマイクロプロセッサ(U11);
ホットラインに第1電流分類器(SH1)を通じて連結された第1絶縁差動増幅器(2−1)、及び中性ラインに第2電流分類器(SH2)を通じて連結された第2絶縁差動増幅器(2−2)に比較可能に連結されながらマイクロプロセッサ(U11)に連結され、ホットライン及び中性ラインに流れる電流を比較・感知し、接地故障の有無を確認するように構成された第1比較器(U9);及び
ホットラインに第1電流分類器(SH1)を通じて連結された第1絶縁差動増幅器(2−1)とマイクロプロセッサ(U11)との間に介在するように連結され、ホットラインの第1電流分類器(SH1)を通過する電圧と、ホットラインの第1電流分類器(SH1)の代表信号の電圧スイングの近似値である中間スケールとを比較・感知し、アーク故障の有無を確認するように構成された第2比較器(U10);
を含み、マイクロプロセッサ(U11)のプログラムで各機能別設定値を調整し、電源制御手段(1)を可変できるようにしたことを特徴とする複合多機能リレーシステム。 - マイクロプロセッサ(U11)に一対の第1LED(CR1)及び第2LED(CR2)が電気的に配線で連結され、漏電、過電流及びアークの発生時、そして、誘導負荷運転時にそれぞれ一対の第1LED(CR1)及び第2LED(CR2)の点灯がそれぞれ異なる形に起こるように構成されたことを特徴とする、請求項1に記載の複合多機能リレーシステム。
- デジタル回路とアナログ回路との組み合わせでトライアック(ISO−A、ISO−B)と機械式リレーとを回路で連結するように構成され、
マイクロプロセッサ(U11)を基盤にして交流回路のホットライン及び中性ラインのそれぞれの電流分類器によって収集された電流及び周波数信号を分析し、プログラムで予め設定が可能な各機能別設定値とそれぞれ比較して電源制御手段(1)の機械式リレー(KC)を制御し、誘導負荷運転、過電流遮断機能、アーク遮断機能、漏電遮断機能などの各機能を複合的に行うことを特徴とする複合多機能リレーシステムの制御方法。 - 電源制御手段(1)の制御は、マイクロプロセッサ(U11)のプログラム設定状態で外部制御入力信号によってオン信号である場合、トライアック(ISO−A、ISO−B)を駆動させ、前記トライアック(ISO−A、ISO−B)の両端の電圧差が予め設定・格納された一定値に至ると機械式リレー(KC)を駆動させ、電流の位相がゼロであるときにトライアック(ISO−A、ISO−B)回路を遮断させることを特徴とする、請求項3に記載の複合多機能リレーシステムの制御方法。
- 電源制御手段(1)の制御は、マイクロプロセッサ(U11)のプログラム設定状態で外部制御入力信号によってオフ信号である場合、トライアック(ISO−A、ISO−B)を駆動させ、前記トライアック(ISO−A、ISO−B)の両端の電圧差が予め設定・格納された一定値に至ると機械式リレー(KC)を遮断させ、電流の位相がゼロであるときにトライアック(ISO−A、ISO−B)回路を遮断させることを特徴とする、請求項3に記載の複合多機能リレーシステムの制御方法。
- 機械式リレー(KC)の駆動によって負荷(20)が始動してから2秒以内に接地故障及びアーク故障状態を継続してモニタリングしながら、マイクロプロセッサ(U11)では、予め設定・格納されたモーター始動プロファイルと第1電流分類器(SH1)からのホットラインの電流値とを比較した結果、定められた偏差以上となる場合は非正常であると認識し、機械式リレー(KC)の電流の流れを遮断しながらマイクロプロセッサ(U11)に連結された第1LED(CR1)が点灯し、負荷(20)の始動過電流を遮断及び警告することを特徴とする、請求項4に記載の複合多機能リレーシステムの制御方法。
- 機械式リレー(KC)の駆動によって負荷(20)が始動してから2秒以後に接地故障及びアーク故障状態を継続してモニタリングしながら、マイクロプロセッサ(U11)では、予め設定・格納された正常作動プロファイルと第1電流分類器(SH1)からのホットラインの電流値とを比較した結果、定められた偏差以上となる場合は非正常であると認識し、機械式リレー(KC)の電流の流れを遮断しながらマイクロプロセッサ(U11)に連結された第2LED(CR2)が点灯し、作動過電流を遮断及び警告することを特徴とする、請求項4に記載の複合多機能リレーシステムの制御方法。
- 第1電流分類器(SH1)によるホットラインの電流値と、マイクロプロセッサ(U11)に予め設定・格納されたモーター始動プロファイル又はマイクロプロセッサ(U11)に予め設定・格納された正常作動プロファイルと比較した結果、正常である場合は、ホットラインに第1電流分類器(SH1)及び第1絶縁差動増幅器(2−1)によって連結された第2比較器(U10)で電流センサーの信号周波数を示す矩形波を生成してマイクロプロセッサ(U11)に供給した後、マイクロプロセッサ(U11)に予め設定・格納されたアーク故障の表示のための高周波数と流入した信号の周波数とを比較した結果、定められた偏差以上となる場合は非正常であると認識し、機械式リレー(KC)の電流の流れを遮断しながらマイクロプロセッサ(U11)に連結された第1LED(CR1)及び第2LED(CR2)が点灯し、アーク発生を遮断及び警告することを特徴とする、請求項6又は7に記載の複合多機能リレーシステムの制御方法。
- マイクロプロセッサ(U11)に予め設定・格納されたアーク故障の表示のための高周波数と流入した信号の周波数とを比較した結果、正常である場合は、交流回路のホットライン及び中性ラインの電流がそれぞれ第1電流分類器(SH1)及び第1絶縁差動増幅器(2−1)と第2電流分類器(SH2)及び第2絶縁差動増幅器(2−2)によって連結された第1比較器(U9)で比較された値をマイクロプロセッサ(U11)に流入した後、マイクロプロセッサ(U11)で流入した信号を監視しながらホットラインの電流値と中性ラインの電流値との偏差値と、マイクロプロセッサ(U11)に予め設定・格納された接地故障の表示のための範囲値とを比較した結果、ホットラインの電流値と中性ラインの電流値との偏差値が、マイクロプロセッサ(U11)に予め設定・格納された接地故障の表示のための範囲値を超える場合は非正常であると認識し、機械式リレー(KC)の電流の流れを遮断しながらマイクロプロセッサ(U11)に連結された第1LED(CR1)及び第2LED(CR2)が点灯し、接地故障である漏電発生を遮断及び警告することを特徴とする、請求項8に記載の複合多機能リレーシステムの制御方法。
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KR10-2017-0027289 | 2017-03-02 | ||
KR1020170027289A KR101791255B1 (ko) | 2017-03-02 | 2017-03-02 | 복합 다기능 릴레이 시스템 및 그 제어방법 |
PCT/KR2017/011754 WO2018159914A1 (ko) | 2017-03-02 | 2017-10-24 | 복합 다기능 릴레이 시스템 및 그 제어방법 |
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EP (1) | EP3591780A4 (ja) |
JP (1) | JP2020514774A (ja) |
KR (1) | KR101791255B1 (ja) |
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Also Published As
Publication number | Publication date |
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KR101791255B1 (ko) | 2017-10-30 |
US11005255B2 (en) | 2021-05-11 |
CN108388176B (zh) | 2020-12-08 |
CN108388176A (zh) | 2018-08-10 |
EP3591780A1 (en) | 2020-01-08 |
US20200244061A1 (en) | 2020-07-30 |
EP3591780A4 (en) | 2020-12-09 |
WO2018159914A1 (ko) | 2018-09-07 |
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