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TWI264545B - Method of checking a missing-phase state occurred in a three-phase power source - Google Patents

Method of checking a missing-phase state occurred in a three-phase power source Download PDF

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Publication number
TWI264545B
TWI264545B TW094105421A TW94105421A TWI264545B TW I264545 B TWI264545 B TW I264545B TW 094105421 A TW094105421 A TW 094105421A TW 94105421 A TW94105421 A TW 94105421A TW I264545 B TWI264545 B TW I264545B
Authority
TW
Taiwan
Prior art keywords
phase
voltage
stipulations
under
value
Prior art date
Application number
TW094105421A
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English (en)
Other versions
TW200630617A (en
Inventor
Ting-Chung Hsieh
Shih-Chieh Liao
Original Assignee
Delta Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delta Electronics Inc filed Critical Delta Electronics Inc
Priority to TW094105421A priority Critical patent/TWI264545B/zh
Priority to US11/196,245 priority patent/US7355866B2/en
Publication of TW200630617A publication Critical patent/TW200630617A/zh
Application granted granted Critical
Publication of TWI264545B publication Critical patent/TWI264545B/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16—Measuring asymmetry of polyphase networks
    • 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
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16547—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies voltage or current in AC supplies
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inverter Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Description

1264545 九、發明說明： 【發明所屬之技術領域】 、本發明係關於一種電源狀態檢測方法，特別是一種以軟體方 式判斷三相電源欠相之檢測方法。 【先前技術】 隨著電力電子的應用曰益普及，不斷電系統及變頻器等電力 轉換器的使用非$廣泛，請茶照「第1圖」，係為一般變頻器的系 統方塊圖，三相電源透過整流器10將交流電壓整流為直流I壓。 電路20將整流後的脈動直流電壓濾波後變為更穩定的直 心L電尾(直 匯;^排）’以提供給變頻器％使用；接著，變頻哭3〇 =產生馬達50運轉所需的電源，而控制電路則用以控制整^哭 、濾:波電路20及變頻器3〇的電路動作。 當二相電源發生欠相狀況時，會導致整流器10中輸入電流 及直流II流排上漣波電壓酿波振幅變大，如此，將影塑 中電容器的壽命，而目前電源欠相檢& 了 進行偵測與判斷’其硬體電路檢測方式除 Ιί要?？=置成本外，亦需佔用—定的容置空間且其電子零件 具有一定壽命，即故障機率也較高。 八电卞Υ仟 究人Γ種低成本的電社她财法，成為研 【發明内容】 欠相ΐίϊίί Ίίί，主要目的在於提供-種三相電源 斷電源狀態是否為欠相If 壓的變化’以判 方法，、包括^下4^ f ’本發明所揭露之三相電源欠相之檢測 iS银的㊣㈣ 人相狀悲條件為頻率值小於或等於欠相狀態頻率值 1264545 H’Hz〜13GHz) ’且電壓值大於或等於設定的欠相狀態連波電 流匯：目ίίί相之f測方法，利用取樣與持續檢測直 明如^關本發_特徵與實作，紐合圖示作最佳實 【實施方式】 源電的漣波3電制頻率值約為6倍的電
漣”值為 360Hz疋 Ϊ 電 連 J 頻率值為300Hz。 i肩手m為一相5ϋΗζ %，其漣波 、、盾相^源發生欠相情況時，即由三相電源變成單相雷 ;值源電壓頻率值，例，當電源電壓頻 其漣ϊΐΐ值「5著r匕?養㈣二: 意圖，直流匯流排電壓之波形示 等於電驟101) ’包含有：小於或 測上，與電壓檢測下限值^三I:測上限值及介於電壓檢 .--^-ΐΐϊί f I264545 週週期計數上限值(步驟107);若漣波電⑶=於-週期ϋ上赚日H週聊域波或极一週 ^算(步驟106)，以減少檢測誤差H週平均值 續檢測與計算漣波電壓的週期。 驟⑻，以持 互為=【獲；率 得漣波電壓的頻率值。 』飞料（V週期）’因此，亦可取 圖，ίί冗之步驟流程 漣波電壓值，並將最 值為兩ϊ的電％ί值:以：電時值’而欠相狀態頻率 雷檢取樣直流匯流排電壓(步驟2〇1)，並比對 於或Ϊ於目前的最大值(步驟202);若取樣值大 取樣f彳f ί於，的最小值_2〇4);若 小^持不^ 值未小於或等於目前的最小值’則目前的ί /η、田ί妾了來:於步驟2〇3、步驟204及步驟205之後，均刹斷一 ΪΊίίΙ間是否到達(步驟206) ’即一個週期時間‘否到
«ϊίΕί；；|^^ ? 201J 始，去!f j 下間開 取樣的直流匯流排電壓的 取以 7 1264545 最大健最小_初始值，以作為下—_的參考值 ⑼合並=時欠^ 少誤差ί 料式，以減 、二?到設備保護與彈性運用的目的。 流匯流排上的漣波電塵'^率目樣與持續檢測直 低檢測電源欠相成本的目的W更體電路檢測方式，糟以達到降 定本’ «蝴以限 内，當可作此哞之爭#Λ偽、者在不脫離本發明之精神和範圍 圖； a所扣之直流匯流排漣波電壓之波形示意 ϊ it，所提之《計算之步驟流程圖；及 【主要元^符、號說明所提之電源欠相檢測之步驟流程圖。 10 整流器 11 lla lib 12 13 20 直流匯流排漣波電壓 直流匯流排電壓的最大值 直流匯流排電壓的最小值 電壓檢測上限值 電壓檢測下限值 濾波電路 1264545 30 變頻器 40 控制電路 50 馬達 步驟100 步驟101 步驟102 步驟103 步驟104 步驟105 步驟106 步驟107
步驟108 步驟200 步驟201 步驟202 步驟203 步驟204 步驟205 步驟206 步驟207 步驟208 步驟209
檢測直流匯流排電壓的即時值 =直流随排電壓與設定龍檢耻、下限值的 則一態為正半週？ 切換為負半週週期計數 前一態為負半週？ 切換為正半週週期計數 一週週期計數平均 等於一週週期計數上限 漣波電壓週期是否大於或 值？
、期為直流匯流排漣波電壓的 初巧化及設定欠相檢測條件 J 持績檢測並取樣直流匯流排電壓 超出目前的最大值？ 超出目前的最小值？ 二個週期時間到達？ 電壓值及下一個週期時間的開始 ίίΐ波電壓頻率值與電壓值是否符合&狀態 決定電源為欠相狀態

Claims (1)

1264545 卜、申請專利範圍： I一種三相電源欠相之檢測方法，包含有： 設定一欠相狀態檢測條件； 、於一取樣週期時間内，檢測一直流匯流排之電壓變化， 以取得該直流匯流排上之漣波電壓之電壓值與頻率值； 依據該欠相狀態檢測條件比對該電壓值與該頻率值· 定該值符合該欠相㈣檢測條件時:決 2. tti專利範圍第1項所述之檢測方法，其中欠相檢測條件 • ΐ二ΐ專第2項所述之檢測方法，其中於該取樣^!期 4 ^更：電職之最大值 4·=申請專利範圍第3項所述之檢測方法，其中於 5 6s申電Μ第大㈣ 圍第2斯述之檢财法，財取得該頻率值 *電择芏niiKissir1斷該;連 半週SSi連波電壓之該前一態為正半週時，切換為-負 所取ii=之^ 項一 數之步驟以 耗圍第2項所述之檢測方法，其中該欠相狀態條 10 1264545 件為該頻率值小於或等於該欠相狀態頻率值且該電壓值大 於或等於該欠相狀態漣波電壓值。 9.如申請專利範圍第8項所述之檢測方法，其中該欠相狀態頻 率值為90Hz〜130Hz。
11
TW094105421A 2005-02-23 2005-02-23 Method of checking a missing-phase state occurred in a three-phase power source TWI264545B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094105421A TWI264545B (en) 2005-02-23 2005-02-23 Method of checking a missing-phase state occurred in a three-phase power source
US11/196,245 US7355866B2 (en) 2005-02-23 2005-08-04 Method of detecting phase-loss state of three-phase power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094105421A TWI264545B (en) 2005-02-23 2005-02-23 Method of checking a missing-phase state occurred in a three-phase power source

Publications (2)

Publication Number Publication Date
TW200630617A TW200630617A (en) 2006-09-01
TWI264545B true TWI264545B (en) 2006-10-21

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US (1) US7355866B2 (zh)
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CN100488022C (zh) * 2003-06-24 2009-05-13 阿斯克尔控股责任有限公司 循环泵中同步电动机的控制方法
US7480124B2 (en) * 2007-01-31 2009-01-20 Rockwell Automation Technologies, Inc. Detection of an AC input phase-loss on a multi-phase AC servo drive
EP2284986A4 (en) * 2008-04-28 2017-05-03 Daikin Industries, Ltd. Inverter control device and power conversion device
TWI356566B (en) * 2008-10-03 2012-01-11 Ablerex Electronics Co Ltd Ripple voltage suppression method for dc/dc conver
TWI403747B (zh) * 2009-08-05 2013-08-01 Univ Nat Cheng Kung 無刷馬達之缺相診斷系統及方法暨具缺相診斷功能之無刷馬達控制系統
KR101558022B1 (ko) * 2011-05-13 2015-10-07 엘에스산전 주식회사 입력 결상 검출 장치 및 그 방법
GB2504494A (en) * 2012-07-30 2014-02-05 Eaton Aerospace Ltd Phase loss or input voltage drop detection using common-mode voltage in rectified signal
US9036382B2 (en) 2013-03-06 2015-05-19 Rockwell Automation Technologies, Inc. Method and apparatus for ripple and phase loss detection
US9755568B2 (en) * 2014-07-09 2017-09-05 Nidec Motor Corporation System and method for detecting loss of input phase by sensing before power rectifier
US10063181B2 (en) 2014-07-14 2018-08-28 Nidec Motor Corporation System and method for detecting loss of input phase by sensing after power rectifier
CN104865430B (zh) * 2015-05-28 2019-01-01 武汉精测电子集团股份有限公司 一种自动测试纹波的装置和方法
US10008972B2 (en) 2015-11-23 2018-06-26 Regal Beloit America, Inc. Systems and methods for determining loss of phase for power provided to an electric motor
US10263558B2 (en) 2016-03-16 2019-04-16 Rockwell Automation Technologies, Inc. Phase loss detection in active front end converters
CN106329469B (zh) * 2016-11-25 2018-11-06 广西大学 三相负载防断相保护电路
US11498147B2 (en) * 2018-05-01 2022-11-15 Illinois Tool Works Inc. Single phase input detection and power source protection
PL3636376T3 (pl) 2018-10-12 2022-01-24 Dallan S.P.A. Urządzenie do cięcia laserowego lub plazmowego kawałków materiału warstwowego
JP7205187B2 (ja) * 2018-11-21 2023-01-17 富士電機株式会社 装置、電源装置、方法およびプログラム
JP7148203B2 (ja) * 2019-11-13 2022-10-05 Ｎｅｃプラットフォームズ株式会社 電子機器
CN115079037A (zh) 2021-03-11 2022-09-20 台达电子工业股份有限公司 三相交流电源的欠相检测装置与欠相检测方法
TWI767605B (zh) * 2021-03-11 2022-06-11 台達電子工業股份有限公司 三相交流電源之欠相偵測裝置與欠相偵測方法
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CN114295887B (zh) * 2021-12-22 2023-07-18 科德数控股份有限公司 一种掉电检测方法
CN115201587A (zh) * 2022-06-20 2022-10-18 青岛海尔空调电子有限公司 用于缺相检测的方法及装置、缺相检测设备、存储介质

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Publication number Publication date
TW200630617A (en) 2006-09-01
US7355866B2 (en) 2008-04-08
US20060187683A1 (en) 2006-08-24

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