CN114175186A - 一种磁性器件的电流采样系统、方法、磁性器件及功率变换器 - Google Patents

一种磁性器件的电流采样系统、方法、磁性器件及功率变换器 Download PDF

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Publication number
CN114175186A
CN114175186A CN202080005533.2A CN202080005533A CN114175186A CN 114175186 A CN114175186 A CN 114175186A CN 202080005533 A CN202080005533 A CN 202080005533A CN 114175186 A CN114175186 A CN 114175186A
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CN
China
Prior art keywords
winding
current
transformer
inductor
magnetic device
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Pending
Application number
CN202080005533.2A
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English (en)
Inventor
杨泽洲
易立琼
梁泽华
钟曙
谢涛
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Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies Co Ltd
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Publication date
Application filed by Huawei Digital Power Technologies Co Ltd filed Critical Huawei Digital Power Technologies Co Ltd
Publication of CN114175186A publication Critical patent/CN114175186A/zh
Pending legal-status Critical Current

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    • 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
    • G01R19/2509—Details concerning sampling, digitizing or waveform capturing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • 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
    • G01R19/10—Measuring sum, difference or ratio
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • 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
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current 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
    • H02M5/10—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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

本申请公开了一种磁性器件的电流采样系统、方法、磁性器件及功率变换器，该电流采样系统包括磁性器件和电流检测电路，磁性器件为电感或变压器，电感或变压器包括至少一个绕组；绕组至少包括以下两部分：第一部分和第二部分；第一部分的第一端和第二部分的第一端连接在一起，第一部分的第二端和第二部分的第二端分离，第二部分的第二端连接电流检测电路；电流检测电路，用于采样流过第二部分的电流，根据采样的流过第二部分的电流和预设比例获得绕组的总电流；绕组的总电流为流过第一部分的电流与流过第二部分的电流之和。不直接采样绕组的总电流，而是采样绕组的部分电流，使被采样的电流降低，进而使电路中产生的热损耗会降低。

Description

PCT国内申请，说明书已公开。

Claims (21)

  1. PCT国内申请，权利要求书已公开。
CN202080005533.2A 2020-07-03 2020-07-03 一种磁性器件的电流采样系统、方法、磁性器件及功率变换器 Pending CN114175186A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/100222 WO2022000487A1 (zh) 2020-07-03 2020-07-03 一种磁性器件的电流采样系统、方法、磁性器件及功率变换器

Publications (1)

Publication Number Publication Date
CN114175186A true CN114175186A (zh) 2022-03-11

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CN202080005533.2A Pending CN114175186A (zh) 2020-07-03 2020-07-03 一种磁性器件的电流采样系统、方法、磁性器件及功率变换器

Country Status (4)

Country Link
US (1) US20230194579A1 (zh)
EP (1) EP4170688A4 (zh)
CN (1) CN114175186A (zh)
WO (1) WO2022000487A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201242561Y (zh) * 2008-07-04 2009-05-20 盛弘电气有限公司 电源电流检测装置
CN103578706A (zh) * 2012-08-07 2014-02-12 伊顿公司 一种通过电感绕组实现分流测量的功率电感装置和方法
EP3133405A1 (de) * 2015-08-19 2017-02-22 Siemens Aktiengesellschaft Vorrichtung und verfahren zur messung einer stromstärke in einem elektrischen leiter
CN110706903A (zh) * 2019-10-16 2020-01-17 台达电子企业管理（上海）有限公司 整合式磁性元件

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675401B (zh) * 2012-09-19 2017-12-05 山特电子（深圳）有限公司 电流分流采样装置和方法
CN104485198B (zh) * 2014-06-26 2017-12-08 国家电网公司 空心电抗器及空心电抗器电流测量方法
CN111190039B (zh) * 2018-11-14 2022-06-28 台达电子工业股份有限公司 功率变换器的电流检测电路

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201242561Y (zh) * 2008-07-04 2009-05-20 盛弘电气有限公司 电源电流检测装置
CN103578706A (zh) * 2012-08-07 2014-02-12 伊顿公司 一种通过电感绕组实现分流测量的功率电感装置和方法
EP3133405A1 (de) * 2015-08-19 2017-02-22 Siemens Aktiengesellschaft Vorrichtung und verfahren zur messung einer stromstärke in einem elektrischen leiter
CN110706903A (zh) * 2019-10-16 2020-01-17 台达电子企业管理（上海）有限公司 整合式磁性元件

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US20230194579A1 (en) 2023-06-22
EP4170688A4 (en) 2023-08-02
EP4170688A1 (en) 2023-04-26
WO2022000487A1 (zh) 2022-01-06

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