KR970002344A - Capacitor replacement time alarm method and device - Google Patents

Capacitor replacement time alarm method and device Download PDF

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Publication number
KR970002344A
KR970002344A KR1019950017874A KR19950017874A KR970002344A KR 970002344 A KR970002344 A KR 970002344A KR 1019950017874 A KR1019950017874 A KR 1019950017874A KR 19950017874 A KR19950017874 A KR 19950017874A KR 970002344 A KR970002344 A KR 970002344A
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South Korea
Prior art keywords
capacitor
phase difference
phase
loss angle
voltage
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KR1019950017874A
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Korean (ko)
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KR0165407B1 (en
Inventor
이진우
강병희
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김광호
삼성전자 주식회사
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Priority to KR1019950017874A priority Critical patent/KR0165407B1/en
Publication of KR970002344A publication Critical patent/KR970002344A/en
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Publication of KR0165407B1 publication Critical patent/KR0165407B1/en

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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
    • G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
    • G01R31/013—Testing passive components
    • G01R31/016—Testing of capacitors
    • 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
    • G01R31/1227—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 of components, parts or materials

Abstract

본 발명은 커패시터(capacitor)의 수명을 체크하여 커패시터의 교환시기를 자동적으로 알려주는 커패시터 교환시기 경보방법 및 장치에 관한 것으로서 커패시터에 부하되는 전압의 위상과 전류의 위상을 각각 검출하는 위상검출단계; 상기 위상검출단계에서 검출된 커패시터에 부하되는 전압의 위상과 전류의 위상차를 계산하는 위상차 계산단계; 상기 위상차 계산단계에서 계산된 위상차를 '90°-(전압과 전류의 위상차)'를 계산하여 커패시터의 수명의 기준의 되는 손실각을 계산하는 손실각 계산단계; 커패시터의 수명의 기준척도가 되는 소정의 기준손실각과 상기 손실각 계산단계에서 계산된 손실각을 비교하는 손실각 비교단계; 및 상기 손실각 비교단계에서 비교하여 기준 손실각보다 상기 손실각 계산단계에서 계산된 커패시터의 손실각이 작으면 정상이고, 그렇지 않으면 커패시터 교환을 알리는 정보를 경보하는 교환경보단계를 포함한다.The present invention relates to a method and apparatus for alerting a capacitor replacement time for automatically informing a capacitor replacement time by checking a lifetime of a capacitor, comprising: a phase detection step of detecting a phase of a voltage and a phase of a current loaded on the capacitor, respectively; A phase difference calculation step of calculating a phase difference between a voltage phase and a current loaded on the capacitor detected in the phase detection step; A loss angle calculation step of calculating a '90 °-(phase difference between voltage and current) 'from the phase difference calculated in the phase difference calculation step and calculating a loss angle that is a reference for the life of the capacitor; A loss angle comparison step of comparing a loss angle calculated in the loss angle calculation step with a predetermined reference loss angle serving as a reference measure of the life of the capacitor; And an exchange alarm step in which the loss angle of the capacitor calculated in the loss angle calculation step is smaller than the reference loss angle in comparison with the loss angle comparison step, and otherwise alerts information informing of the capacitor replacement.

따라서, 커패시터에 부하되는 전압 및 전류간의 위상차를 구하여 소정의 기준위상차와 비교해줌으로써, 커패시터의 교환시기를 자동적으로 알려주는 효과가 있다.Therefore, the phase difference between the voltage and current loaded on the capacitor is obtained and compared with a predetermined reference phase difference, thereby automatically informing the replacement time of the capacitor.

Description

커패시터 교환시기 경보방법 및 장치Capacitor replacement time alarm method and device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 커패시터 교환시기 경보방법을 나타내는 플로우챠트이다, 제2도는 본 발명에 따른 커패시터 교환시기 경보장치를 설명하기 위한 개요도이다, 제3도는 커패시터의 '교환경보'표시수단을 일실시예로서 설명하기 위해 인버터(inverter)에 적용한 도면이다.1 is a flowchart showing a method for alerting a capacitor replacement time according to the present invention. FIG. 2 is a schematic diagram for explaining a capacitor replacement time warning device according to the present invention. In order to explain as an embodiment, it is a drawing applied to an inverter.

Claims (2)

소정의 시스템내에서 커패시터의 정상 기능수행여부의 기준척도가 되는 전압과 전류의 위상차를 기준위상차를 설정하여 두고, 커패시터에 부하되는 전압 및 전류의 위상차를 검출하여, 커패시터의 정상상태 및 교환경보를 표시하기 위한 커패시터 교환시기 경보방법에 있어서, 커패시터에 부하되는 전압의 위상과 전류의 위상을 각각 검출하는 위상검출단계; 상기 위상검출단계에서 검출된 커패시터에 부하되는 전압의 위상과 전류의 위상차를 계산하는 위상차 계산단계; 상기 위상차 계산단계에서 계산된 위상차를 '90°-(전압과 전류의 위상차)'를 계산하여 커패시터의 수명의 기준의 되는 손실각을 계산하는 손실각 계산단계; 커패시터의 수명의 기준척도가 되는 소정의 기준손실각과 상기 손실각 계산단계에서 계산된 손실각을 비교하는 손실각 비교단계; 및 상기 손실각 비교단계에서 비교하여 기준 손실각보다 상기 손실각 계산단계에서 계산된 커패시터의 손실각이 작으면 정상이고, 그렇지 않으면 커패시터 교환을 알리는 정보를 경보하는 교환경보단계를 포함하는 커패시터 교환시기 경보방법.Set the phase difference between the voltage and the current which is the reference measure of the normal functioning of the capacitor within a certain system, and set the phase difference between the voltage and the current loaded on the capacitor to detect the steady state and exchange alarm of the capacitor. A capacitor exchange time alarm method for displaying, comprising: a phase detection step of detecting a phase of a voltage and a phase of a current loaded on a capacitor, respectively; A phase difference calculation step of calculating a phase difference between a voltage phase and a current loaded on the capacitor detected in the phase detection step; A loss angle calculation step of calculating a '90 °-(phase difference between voltage and current) 'from the phase difference calculated in the phase difference calculation step and calculating a loss angle that is a reference for the life of the capacitor; A loss angle comparison step of comparing a loss angle calculated in the loss angle calculation step with a predetermined reference loss angle serving as a reference measure of the life of the capacitor; And an exchange alarm step in which the loss angle of the capacitor calculated in the loss angle calculation step is smaller than the reference loss angle in comparison with the loss angle comparison step, and alerts information informing of the replacement of the capacitor. Alarm method. 소정의 시스템내에서 커패시터의 정상 기능수행여부의 기준척도가 되는 전압과 전류의 위상차를 기준위상차로 설정하여 두고, 커패시터에 부하되는 전압 및 전류의 위상차를 검출하여, 커패시터의 정상상태 및 교환경보를 표시하기 위한 커패시터 교환시기 경보장치에 있어서, 커패시터에 부하되는 전압의 위상을 검출하는 전압위상검출수단; 커패시터에 부하되는 전류의 위상을 검출하는 전류위상검출수단; 상기 전압위상검출수단 및 전류위상검출수단에서 검출한 커패시터의 전압 및 전류의 위상차를 검출하는 위상차 검출수단; 상기 기준위상차와 상기 위상차 검출수단에서 검출된 전압 및 전류의 실제위상차를 비교하는 위상차 비교수단; 상기 위상차비교수단에서 비교된 결과가 기준위상차가 실제위상차보다 크면 커패시터의 상태가 정상임을 표시하는 '정상'표시수단; 및 상기 위상차 비교수단에서 비교된 결과가 기준위상차가 실제위상차보다 작거나 같으면 커패시터의 상태가 교환시기가 되었음을 일라기 위한 커패시터 교환경보를 표시하는 '커패시터 교환경보'표시수단을 포함하는 커패시터 교환시기 경보장치.The phase difference between voltage and current, which is the reference measure of the capacitor's normal functioning, is set as the reference phase difference, and the phase difference between voltage and current loaded on the capacitor is detected. 1. A capacitor exchange time alarm device for displaying, comprising: voltage phase detection means for detecting a phase of a voltage loaded on a capacitor; Current phase detection means for detecting a phase of a current loaded on the capacitor; Phase difference detecting means for detecting a phase difference between the voltage and the current of the capacitor detected by the voltage phase detecting means and the current phase detecting means; Phase difference comparing means for comparing the actual phase difference between the reference phase difference and the voltage and current detected by the phase difference detecting means; 'Normal' display means for indicating that the state of the capacitor is normal when the result of comparison in the phase difference comparing means is larger than the actual phase difference; And a 'capacitor exchange alarm' display means for displaying a capacitor exchange alarm for indicating that the state of the capacitor is due to be replaced when the result of the phase difference comparison means is less than or equal to the actual phase difference. Device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017874A 1995-06-28 1995-06-28 Capacitor change time alarm method and apparatus KR0165407B1 (en)

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KR1019950017874A KR0165407B1 (en) 1995-06-28 1995-06-28 Capacitor change time alarm method and apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101418177B1 (en) * 2012-12-20 2014-07-10 현대오트론 주식회사 Fault diagnosis device for fuel cell stack having phase difference correction circuit, and phase difference correction method for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101418177B1 (en) * 2012-12-20 2014-07-10 현대오트론 주식회사 Fault diagnosis device for fuel cell stack having phase difference correction circuit, and phase difference correction method for the same

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