CN114916235A - 交流电能检测装置 - Google Patents

交流电能检测装置 Download PDF

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Publication number
CN114916235A
CN114916235A CN202080027642.4A CN202080027642A CN114916235A CN 114916235 A CN114916235 A CN 114916235A CN 202080027642 A CN202080027642 A CN 202080027642A CN 114916235 A CN114916235 A CN 114916235A
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CN
China
Prior art keywords
voltage
circuit
tested cable
cable
current
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202080027642.4A
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English (en)
Inventor
王帅
余建伟
周杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Digital Power Technologies Co Ltd
Original Assignee
Huawei Digital Power Technologies Co Ltd
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 Huawei Digital Power Technologies Co Ltd filed Critical Huawei Digital Power Technologies Co Ltd
Publication of CN114916235A publication Critical patent/CN114916235A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • 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
    • G01R15/16—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using capacitive devices
    • 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
    • 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
    • G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/08—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using analogue techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K2005/00286—Phase shifter, i.e. the delay between the output and input pulse is dependent on the frequency, and such that a phase difference is obtained independent of the frequency

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

本申请公开了一种交流电能检测装置，电压检测单元，与被测线缆形成耦合电容，基于实际电压和耦合电容，得到第一电压，并将第一电压输出给数据处理单元；电流检测单元，检测被测线缆电流，输出给数据处理单元；数据处理单元，接收第一电压和被测线缆电流，确定第一电压值和被测线缆电流值；计算第一电压值与被测线缆电压放大倍数的乘积，确定被测线缆电压值；根据被测线缆电压值和被测线缆电流值，计算被测线缆上传输的电能。利用本申请提供的装置，能避免检测装置安装位置受限电气连接点，且检测装置与被测线缆之间无电气连接，在实时检测被测电压的幅值、相位以及被测线缆的所有谐波等信息的前提下，能提高检测装置的安规等级，降低成本。

Description

PCT国内申请，说明书已公开。

Claims (20)

  1. PCT国内申请，权利要求书已公开。
CN202080027642.4A 2020-12-08 2020-12-08 交流电能检测装置 Pending CN114916235A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/134698 WO2022120612A1 (zh) 2020-12-08 2020-12-08 交流电能检测装置

Publications (1)

Publication Number Publication Date
CN114916235A true CN114916235A (zh) 2022-08-16

Family

ID=81974094

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080027642.4A Pending CN114916235A (zh) 2020-12-08 2020-12-08 交流电能检测装置

Country Status (4)

Country Link
US (1) US20230176094A1 (zh)
EP (1) EP4177613A4 (zh)
CN (1) CN114916235A (zh)
WO (1) WO2022120612A1 (zh)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102510284B (zh) * 2011-09-23 2015-05-06 中达电通股份有限公司 一种交流电压信号和交流电流信号的校准方法及其装置
US10352967B2 (en) * 2016-11-11 2019-07-16 Fluke Corporation Non-contact electrical parameter measurement systems
DE102018210568A1 (de) * 2018-06-28 2020-01-02 Siemens Aktiengesellschaft Sensoreinrichtung und Verfahren zur Bestimmung einer Wechselspannung
GB2579376B (en) * 2018-11-29 2020-12-30 Trust Power Ltd Non-invasive electricity monitoring

Also Published As

Publication number Publication date
WO2022120612A1 (zh) 2022-06-16
US20230176094A1 (en) 2023-06-08
EP4177613A1 (en) 2023-05-10
EP4177613A4 (en) 2023-11-01

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