WO2012119467A1 - Accuracy verification system for digital signal-based electric power quality measuring apparatus - Google Patents
Accuracy verification system for digital signal-based electric power quality measuring apparatus Download PDFInfo
- Publication number
- WO2012119467A1 WO2012119467A1 PCT/CN2011/083159 CN2011083159W WO2012119467A1 WO 2012119467 A1 WO2012119467 A1 WO 2012119467A1 CN 2011083159 W CN2011083159 W CN 2011083159W WO 2012119467 A1 WO2012119467 A1 WO 2012119467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- standard source
- signal
- power quality
- processing unit
- voltage
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
-
- 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
Definitions
- the present invention relates to the field of power quality measurement device accuracy verification technology, and in particular to a power quality measurement device accuracy verification system.
- the traditional power quality measuring device accuracy verification method is to connect the analog signal standard source to the detected device, read the set value of the standard source and the measured value of the detected device, and calculate the measurement error according to DL/T 1028-2006.
- the Power Quality Test Analyzer Verification Protocol requires the determination of the measurement accuracy of the device to be tested.
- the present invention provides a power quality measuring device accuracy detecting system based on a digital signal.
- a digital signal-based power quality measuring device accuracy verification system includes an analog signal standard source and a detected device, wherein the analog signal standard source includes a power standard source and a three-phase relay protection analyzer, wherein the power standard source is used as a harmonic voltage, Standard source of harmonic current and voltage flicker; three-phase relay protection analyzer as a standard source of three-phase voltage unbalance; also includes signal conversion device, the signal conversion device includes signal processing composed of an isolation amplifier and a Hall sensor Unit, 16-bit A/D conversion unit, central processing unit and fiber interface unit based on PowerPC+FPGA+VxWorks architecture; input terminal of signal processing unit composed of isolation amplifier and Hall sensor is connected with analog signal standard source, output terminal and The input of the 16-bit A/D conversion unit is connected; the output of the 16-bit A/D conversion unit is based on The input of the central processing unit of the PowerPC+FPGA+VxWorks architecture is connected; the output of the central processing unit based on the PowerPC+FPGA+VxWorks architecture is connected to the input
- the analog signal standard source is a harmonic, voltage flicker, and three-phase voltage unbalance indicator generating device that meets the accuracy requirements of relevant national standards, and the signal conversion device is a full national standard. Accuracy requirements or certified instruments.
- Figure 1 is a block diagram of the present invention.
- a digital signal-based power quality measuring device accuracy verification system includes an analog signal standard source and a detected device, wherein the analog signal standard source includes a power standard source and a three-phase relay protection analyzer, wherein the power standard source is used as Standard source of harmonic voltage, harmonic current, voltage flicker; three-phase relay protection analyzer as a standard source of three-phase unbalance; characterized by: further comprising a signal conversion device, the signal conversion device comprising an isolation amplifier, A signal processing unit consisting of a Hall sensor, a 16-bit analog-to-digital conversion unit, a central processing unit and a fiber interface unit based on the PowerPC+FPGA+VxWorks architecture; an input terminal and an analog signal of a signal processing unit composed of an isolation amplifier and a Hall sensor Standard source connection, the output is connected to the input of the 16-bit A/D conversion unit; the output of the 16-bit A/D conversion unit is connected to the input of the central processing unit based on the PowerPC+FPGA+VxWork
- the standard source of the analog signal is a harmonic, voltage flicker, three-phase voltage unbalance indicator generating instrument that satisfies the accuracy requirements of relevant national standards, and the signal conversion device is a full national standard accuracy requirement or a certified instrument.
- the main technical indicators of the signal conversion device input range is current 0-120A, voltage 0.05V-180V (phase voltage); sampling rate is 80 points/cycle and above (adjustable); sampling accuracy of voltage and current waveform is better than ⁇ 0.3 %; Support IEC60044-8, IEC61850-9-1, IEC61850-9-2 and GOOSE optical digital message output; with 100Mbps optical Ethernet transceiver port and optical serial port output.
- Device to be detected A power quality measuring device based on digital signals. Different manufacturers have different signal and specifications, mainly used for power quality testing in digital substation or intelligent substation environment.
- the system is used to characterize harmonic voltage, harmonic current, interharmonics, harmonic power, voltage flicker and three-phase voltage imbalance indicators of power quality measurement devices based on digital signals.
- DL/T 1028-2006 Power Quality Test Analyzer Verification Protocol
- set the standard source output connect the standard source output port to the analog input interface of the signal conversion device, and convert it into the current digital substation or intelligent substation commonly used to meet IEC61850-
- the digital signal of 9-2 or IEC60044-7/8 protocol is output through the optical fiber interface, and is connected to the optical fiber interface of the detected digital signal-based power quality measuring device to test and determine the measurement accuracy of the detected device.
- ⁇ is the harmonic (interharmonic) voltage and current value
- ⁇ is the fundamental voltage and fundamental current value
- ⁇ and ⁇ are the standard source set output harmonics (interharmonics) voltage content and current contain
- the rate standard value, ⁇ and ⁇ " are harmonic (interharmonic) voltage content and current content measurement values measured by the device under test. 2, harmonic power measurement accuracy verification
- a Ph is the hth harmonic power measurement error of the instrument under test
- Phx is the hth harmonic power measurement value of the instrument under test
- Phs is the hth harmonic power standard value.
- Voltage flicker measurement accuracy verification Set the voltage flicker standard source voltage and the modulation square wave parameters, so that the short-time flicker Pst value of the standard source output is 1 and measure, and calculate the flicker measurement error according to the following error formula. And determine the accuracy of the measurement according to the standard requirements.
- ⁇ is the measured value of the short-time flicker of the device under test
- r is the relative error of the short-term flicker of the device under test.
- ⁇ £ " and ⁇ are the three-phase voltage, current imbalance error, and the three-phase voltage, current imbalance standard value; and the measured value of the three-phase voltage and current imbalance of the device under test.
Abstract
The present invention relates to an accuracy verification system for digital signal-based electric power quality measuring apparatus. The system comprising an analog signal standard source and an apparatus to be measured, the analog signal standard source comprising a power standard source and a three-phase relay protection analyzer, the power standard source is used as a standard source for the harmonic voltage, harmonic current and voltage flicker; the three-phase relay protection analyzer is used as a standard source for the three-phase unbalance factor; the system further comprises a signal conversion apparatus, the signal conversion apparatus comprising a signal processing unit consisting of an isolation amplifier and a Hall sensor, a 16-bit analog/digital conversion unit, a central processing unit (CPU) based on the PowerPC+FPGA+VxWorks architecture and a optical fiber interface unit, each unit connected in sequence. The system inherited the advantages of the traditional verification system for power quality measuring apparatus while simulating the measuring environments of digital transformer substations and intelligent transformer substations, thus able to verify the accuracy of digital signal-based electric power quality measuring apparatus strictly according to existing standards and specifications.
Description
基于数字信号的电能质量测量装置准确度检定系统 技术领域 本发明属于电能质量测量装置准确度检定技术领域，具体涉及电能质量测 量装置准确度检定系统。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of power quality measurement device accuracy verification technology, and in particular to a power quality measurement device accuracy verification system.
背景技术 随着我国智能电网的发展，数字化变电站和智能变电站将是未来变电站建 带有时标符合 IEC60044-7/8或 IEC61850-9-2规约的数字离散信号， 在电能质 量数据的测量方法和方式上有别于传统的测试手段，目前国内市场已出现测量 数字信号的电能质量测量装置。 由于目前没有成熟的 "数字化电能质量标准 源"， 无法直接对基于数字信号的电能质量测量装置准确度进行检定， 因此需 要研究一种检定方法，建立基于数字信号的电能质量测量装置准确度的检定系 统。传统的电能质量测量装置准确度检定方法是将模拟信号标准源与被检测装 置相连， 读取标准源的设置值和被检测装置的测量值， 并计算测量误差， 按照 DL/T 1028-2006《电能质量测试分析仪检定规程》要求对被检测装置的测量准 确度进行判定。 BACKGROUND OF THE INVENTION With the development of smart grids in China, digital substations and intelligent substations will be digital discrete signals with time-scales in accordance with IEC60044-7/8 or IEC61850-9-2, and methods and methods for measuring power quality data. Different from the traditional testing methods, the power quality measuring device for measuring digital signals has appeared in the domestic market. Since there is no mature "digital power quality standard source", it is impossible to directly verify the accuracy of the power quality measurement device based on digital signals. Therefore, it is necessary to study a verification method to establish the accuracy of the power quality measurement device based on digital signals. system. The traditional power quality measuring device accuracy verification method is to connect the analog signal standard source to the detected device, read the set value of the standard source and the measured value of the detected device, and calculate the measurement error according to DL/T 1028-2006. The Power Quality Test Analyzer Verification Protocol requires the determination of the measurement accuracy of the device to be tested.
发明内容 Summary of the invention
为了解决无法直接对基于数字信号的电能质量测量装置准确度进行检定 的问题， 本发明提供一种基于数字信号的电能质量测量装置准确度检定系统。 In order to solve the problem that the accuracy of the digital signal-based power quality measuring device cannot be directly verified, the present invention provides a power quality measuring device accuracy detecting system based on a digital signal.
实现上述目的的技术解决方案如下： The technical solutions to achieve the above objectives are as follows:
基于数字信号的电能质量测量装置准确度检定系统，包括模拟信号标准源 和被检测装置， 所述模拟信号标准源包括功率标准源和三相继电保护分析仪， 其中功率标准源作为谐波电压、 谐波电流、 电压闪变的标准源； 三相继电保护 分析仪作为三相电压不平衡度的标准源； 还包括信号转换装置， 所述信号转换 装置包括隔离放大器、霍尔传感器组成的信号处理单元， 16位模 /数转换单元， 基于 PowerPC+FPGA+VxWorks构架的中央处理单元和光纤接口单元； 隔离放 大器、霍尔传感器组成的信号处理单元的输入端与模拟信号标准源连接，输出 端与 16位模 /数转换单元的输入端连接； 16位模 /数转换单元的输出端与基于
PowerPC+FPGA+VxWorks 构架的中央处理单元的输入端连接； 基于 PowerPC+FPGA+VxWorks构架的中央处理单元的输出端与光纤接口单元的输 入端连接； 光纤接口单元的输出端与被检测装置的输入端连接。 A digital signal-based power quality measuring device accuracy verification system includes an analog signal standard source and a detected device, wherein the analog signal standard source includes a power standard source and a three-phase relay protection analyzer, wherein the power standard source is used as a harmonic voltage, Standard source of harmonic current and voltage flicker; three-phase relay protection analyzer as a standard source of three-phase voltage unbalance; also includes signal conversion device, the signal conversion device includes signal processing composed of an isolation amplifier and a Hall sensor Unit, 16-bit A/D conversion unit, central processing unit and fiber interface unit based on PowerPC+FPGA+VxWorks architecture; input terminal of signal processing unit composed of isolation amplifier and Hall sensor is connected with analog signal standard source, output terminal and The input of the 16-bit A/D conversion unit is connected; the output of the 16-bit A/D conversion unit is based on The input of the central processing unit of the PowerPC+FPGA+VxWorks architecture is connected; the output of the central processing unit based on the PowerPC+FPGA+VxWorks architecture is connected to the input of the fiber interface unit; the output of the fiber interface unit and the input of the device under test End connection.
优选的， 在本实施例中， 所述的模拟信号标准源为满足相关国家标准精度 要求的谐波、 电压闪变、 三相电压不平衡度指标发生仪器， 所述信号转换装置 为满座国家标准精度要求或经过认证的仪器。 Preferably, in the embodiment, the analog signal standard source is a harmonic, voltage flicker, and three-phase voltage unbalance indicator generating device that meets the accuracy requirements of relevant national standards, and the signal conversion device is a full national standard. Accuracy requirements or certified instruments.
附图说明 图 1为本发明原理框图。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram of the present invention.
具体实施方式 下面结合图 1 , 通过实施例对本发明作进一步地说明。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be further described by way of embodiments with reference to FIG.
实施例： Example:
参见图 1 , 基于数字信号的电能质量测量装置准确度检定系统， 包括模拟 信号标准源和被检测装置，所述模拟信号标准源包括功率标准源和三相继电保 护分析仪， 其中功率标准源作为谐波电压、 谐波电流、 电压闪变的标准源； 三 相继电保护分析仪作为三相不平衡度的标准源； 其特征在于： 还包括信号转换 装置， 所述信号转换装置包括隔离放大器、 霍尔传感器组成的信号处理单元， 16位模 /数转换单元， 基于 PowerPC+FPGA+VxWorks构架的中央处理单元和 光纤接口单元； 隔离放大器、霍尔传感器组成的信号处理单元的输入端与模拟 信号标准源连接， 输出端与 16位模 /数转换单元的输入端连接； 16位模 /数转 换单元的输出端与基于 PowerPC+FPGA+VxWorks构架的中央处理单元的输入 端连接； 基于 PowerPC+FPGA+VxWorks构架的中央处理单元的输出端与光纤 接口单元的输入端连接； 光纤接口单元的输出端与被检测装置的输入端连接。 Referring to FIG. 1 , a digital signal-based power quality measuring device accuracy verification system includes an analog signal standard source and a detected device, wherein the analog signal standard source includes a power standard source and a three-phase relay protection analyzer, wherein the power standard source is used as Standard source of harmonic voltage, harmonic current, voltage flicker; three-phase relay protection analyzer as a standard source of three-phase unbalance; characterized by: further comprising a signal conversion device, the signal conversion device comprising an isolation amplifier, A signal processing unit consisting of a Hall sensor, a 16-bit analog-to-digital conversion unit, a central processing unit and a fiber interface unit based on the PowerPC+FPGA+VxWorks architecture; an input terminal and an analog signal of a signal processing unit composed of an isolation amplifier and a Hall sensor Standard source connection, the output is connected to the input of the 16-bit A/D conversion unit; the output of the 16-bit A/D conversion unit is connected to the input of the central processing unit based on the PowerPC+FPGA+VxWorks architecture; Based on PowerPC+FPGA +VxWorks architecture central processing unit output and fiber interface unit An input terminal; output side optical fiber input interface unit connected with the detecting means.
所述的模拟信号标准源为满足相关国家标准精度要求的谐波、 电压闪变、 三相电压不平衡度指标发生仪器，所述信号转换装置为满座国家标准精度要求 或经过认证的仪器。 The standard source of the analog signal is a harmonic, voltage flicker, three-phase voltage unbalance indicator generating instrument that satisfies the accuracy requirements of relevant national standards, and the signal conversion device is a full national standard accuracy requirement or a certified instrument.
信号转换装置的主要技术指标： 输入量程为电流 0— 120A, 电压 0.05V— 180V (相电压）； 采样率为 80点 /周波及以上（可调）； 电压电流波形的采样精 度优于 ± 0.3%; 支持 IEC60044-8、 IEC61850-9-1 , IEC61850-9-2及 GOOSE光 数字报文输出； 具备 100Mbps光纤以太网收发口和光串口输出等。
被检测装置： 基于数字信号的电能质量测量装置。各种厂家的装置信号和 规格不同， 主要用于数字化变电站或智能变电站环境下的电能质量测试。 The main technical indicators of the signal conversion device: input range is current 0-120A, voltage 0.05V-180V (phase voltage); sampling rate is 80 points/cycle and above (adjustable); sampling accuracy of voltage and current waveform is better than ± 0.3 %; Support IEC60044-8, IEC61850-9-1, IEC61850-9-2 and GOOSE optical digital message output; with 100Mbps optical Ethernet transceiver port and optical serial port output. Device to be detected: A power quality measuring device based on digital signals. Different manufacturers have different signal and specifications, mainly used for power quality testing in digital substation or intelligent substation environment.
该系统用于检定基于数字信号的电能质量测量装置的谐波电压、 谐波电 流、 间谐波、 谐波功率、 电压闪变和三相电压不平衡度指标。 根据 DL/T 1028-2006《电能质量测试分析仪检定规程》， 设置标准源输出， 将标准源输出 端口连接至信号转换装置的模拟输入接口，转换成现在数字化变电站或智能变 电站常用的满足 IEC61850-9-2或 IEC60044-7/8规约的数字信号， 通过光纤接 口输出， 接入被检测的基于数字信号的电能质量测量装置的光纤接口进行测 试， 并判断被检测装置的测量准确度。 The system is used to characterize harmonic voltage, harmonic current, interharmonics, harmonic power, voltage flicker and three-phase voltage imbalance indicators of power quality measurement devices based on digital signals. According to DL/T 1028-2006 "Power Quality Test Analyzer Verification Protocol", set the standard source output, connect the standard source output port to the analog input interface of the signal conversion device, and convert it into the current digital substation or intelligent substation commonly used to meet IEC61850- The digital signal of 9-2 or IEC60044-7/8 protocol is output through the optical fiber interface, and is connected to the optical fiber interface of the detected digital signal-based power quality measuring device to test and determine the measurement accuracy of the detected device.
工作原理如下： The working principle is as follows:
1、 谐波（间谐波） 测量准确度检定 1, harmonic (interharmonic) measurement accuracy verification
设置谐波标准源输出基波和谐波（间谐波）含有率并进行测量， 按照以下 误差公式计算谐波（间谐波）测量误差，并根据标准要求进行测量准确度判定。 Set the harmonic standard source output fundamental wave and harmonic (interharmonic) content rate and measure it. Calculate the harmonic (interharmonic) measurement error according to the following error formula, and make the measurement accuracy judgment according to the standard requirements.
HRU ' - HRU, HRU ' - HRU,
Uh≥YMJ N ,H S% x l00% U h ≥ YMJ N , HS% x l00%
HRU HRU
U h < 1%U N ,U h误差 δ% = \HRU _ HRU U h < 1%U N , U h error δ% = \HRU _ HRU
HRIhs - HR HRI hs - HR
≥3%IN，Ih误差 δ% x l00% ≥3%I N , I h error δ% x l00%
HRI HRI
< 3%/w , /¾误差 % =
- HRI <3% / w, / ¾% = error - HRI
其中^和 为谐波（间谐波） 电压和电流值， 和 ^为基波电压和基波 电流值， ^和^ 为标准源设置输出的谐波（间谐波） 电压含有率和电流 含有率标准值， ^和^" 为被检测装置测量的谐波（间谐波） 电压含有率 和电流含有率测量值。
2、 谐波功率测量准确度检定 Where ^ is the harmonic (interharmonic) voltage and current value, and ^ is the fundamental voltage and fundamental current value, ^ and ^ are the standard source set output harmonics (interharmonics) voltage content and current contain The rate standard value, ^ and ^" are harmonic (interharmonic) voltage content and current content measurement values measured by the device under test. 2, harmonic power measurement accuracy verification
设置谐波标准源输出相应的谐波电压和谐波电流含有率并进行测量，按照 以下误差公式计算谐波功率测量误差， 并根据标准要求进行测量准确度判定。 Set the harmonic standard source to output the corresponding harmonic voltage and harmonic current content and measure it. Calculate the harmonic power measurement error according to the following error formula, and judge the measurement accuracy according to the standard requirements.
△ Ph=Phx-Phs △ Ph=Phx-Phs
其中 A Ph为被检仪器第 h次谐波功率测量误差， Phx为被检仪器第 h次谐 波功率测量值， Phs为第 h次谐波功率标准值。 Among them, A Ph is the hth harmonic power measurement error of the instrument under test, Phx is the hth harmonic power measurement value of the instrument under test, and Phs is the hth harmonic power standard value.
3、 电压闪变测量准确度检定 设置电压闪变标准源的电压和调制方波的参数，使标准源输出的短时间闪 变 Pst值为 1并进行测量， 按照以下误差公式计算闪变测量误差， 并根据标准 要求进行测量准确度判定。
3. Voltage flicker measurement accuracy verification Set the voltage flicker standard source voltage and the modulation square wave parameters, so that the short-time flicker Pst value of the standard source output is 1 and measure, and calculate the flicker measurement error according to the following error formula. And determine the accuracy of the measurement according to the standard requirements.
其中 为短时间闪变标准值， ^为被检装置短时间闪变的测量值， r为 被检装置短时间闪变的相对误差。 Where is the short-term flicker standard value, ^ is the measured value of the short-time flicker of the device under test, and r is the relative error of the short-term flicker of the device under test.
4、 三相电压不平衡度测量准确度检定 4, three-phase voltage imbalance measurement accuracy verification
设置三相电压不平衡度标准源的电压、 电流幅值和相角，输出额定的三相 电压或三相电流不平衡度并进行测量，按照以下误差公式计算三项不平衡度测 量误差， 并根据标准要求进行测量准确度判定。
Set the voltage, current amplitude and phase angle of the three-phase voltage unbalance standard source, output the rated three-phase voltage or three-phase current unbalance and measure it, calculate the three unbalance measurement errors according to the following error formula, and The measurement accuracy is judged according to the standard requirements.
其中 Δ£ "和^为三相电压、 电流不平衡度误差， 和 为三相电压、 电 流不平衡度标准值； 和 为 被检装置三相电压、 电流不平衡度的测量值。
Where Δ£ " and ^ are the three-phase voltage, current imbalance error, and the three-phase voltage, current imbalance standard value; and the measured value of the three-phase voltage and current imbalance of the device under test.
Claims
1、 基于数字信号的电能质量测量装置准确度检定系统， 包括模拟信号标 准源和被检测装置，所述模拟信号标准源包括功率标准源和三相继电保护分析 仪， 其中功率标准源作为谐波电压、 谐波电流、 电压闪变的标准源； 三相继电 保护分析仪作为三相电压不平衡度的标准源； 其特征在于： 1. A digital signal-based power quality measuring device accuracy verification system, comprising an analog signal standard source and a detected device, wherein the analog signal standard source comprises a power standard source and a three-phase relay protection analyzer, wherein the power standard source is used as a harmonic Standard source for voltage, harmonic current, and voltage flicker; a three-phase relay protection analyzer as a standard source for three-phase voltage imbalance; characterized by:
还包括信号转换装置， 所述信号转换装置包括隔离放大器、霍尔传感器组 成的信号处理单元， 16位模 /数转换单元， 基于 PowerPC+FPGA+VxWorks构 架的中央处理单元和光纤接口单元； 隔离放大器、霍尔传感器组成的信号处理 单元的输入端与模拟信号标准源连接，输出端与 16位模 /数转换单元的输入端 连接； 16位模 /数转换单元的输出端与基于 PowerPC+FPGA+VxWorks构架的 中央处理单元的输入端连接； 基于 PowerPC+FPGA+VxWorks构架的中央处理 单元的输出端与光纤接口单元的输入端连接；光纤接口单元的输出端与被检测 装置的输入端连接。 Also included is a signal conversion device including an isolation amplifier, a signal processing unit composed of a Hall sensor, a 16-bit analog-to-digital conversion unit, a central processing unit and a fiber interface unit based on the PowerPC+FPGA+VxWorks architecture; and an isolation amplifier The input end of the signal processing unit composed of the Hall sensor is connected to the analog signal standard source, and the output end is connected to the input end of the 16-bit A/D conversion unit; the output end of the 16-bit A/D conversion unit is based on PowerPC+FPGA+ The input end of the central processing unit of the VxWorks architecture is connected; the output end of the central processing unit based on the PowerPC+FPGA+VxWorks architecture is connected to the input end of the optical interface unit; the output end of the optical interface unit is connected to the input end of the device to be detected.
2、 根据权利要求 1所述的基于数字信号的电能质量测量装置准确度检定 系统， 其特征在于： 2. The digital signal based power quality measuring device accuracy verification system according to claim 1, wherein:
所述的模拟信号标准源为满足相关国家标准精度要求的谐波、 电压闪变、 三相电压不平衡度指标发生仪器，所述信号转换装置为满座国家标准精度要求 或经过认证的仪器。 The standard source of the analog signal is a harmonic, voltage flicker, three-phase voltage unbalance indicator generating instrument that satisfies the accuracy requirements of relevant national standards, and the signal conversion device is a full national standard accuracy requirement or a certified instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2801140A CA2801140A1 (en) | 2011-03-07 | 2011-11-29 | Accuracy verification system for digital signal-based electric power quality measuring apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120056204.9 | 2011-03-07 | ||
| CN 201120056204 CN202008526U (en) | 2011-03-07 | 2011-03-07 | Accuracy verification system for digital signal based electric energy quality measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012119467A1 true WO2012119467A1 (en) | 2012-09-13 |
Family
ID=44750186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2011/083159 WO2012119467A1 (en) | 2011-03-07 | 2011-11-29 | Accuracy verification system for digital signal-based electric power quality measuring apparatus |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202008526U (en) |
| CA (1) | CA2801140A1 (en) |
| WO (1) | WO2012119467A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353558A (en) * | 2013-05-31 | 2013-10-16 | 深圳市康必达控制技术有限公司 | Power quality monitoring method |
| CN103439591A (en) * | 2013-05-31 | 2013-12-11 | 深圳市康必达控制技术有限公司 | Electric energy quality monitoring and controlling system |
| CN103792508A (en) * | 2014-01-27 | 2014-05-14 | 国家电网公司 | Error test system and method for digitized metering device |
| CN104535948A (en) * | 2014-11-30 | 2015-04-22 | 国网河南省电力公司电力科学研究院 | Power quality online monitoring device batch calibration system and calibration method |
| CN106443552A (en) * | 2016-07-27 | 2017-02-22 | 国网重庆市电力公司电力科学研究院 | Line and method for simulating operation environment of metering box to switch power supply phases |
| CN113884970A (en) * | 2021-09-24 | 2022-01-04 | 广西电网有限责任公司电力科学研究院 | On-site online calibration method for harmonic parameters of power quality monitoring device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202008526U (en) * | 2011-03-07 | 2011-10-12 | 安徽省电力科学研究院 | Accuracy verification system for digital signal based electric energy quality measurement device |
| CN102654937B (en) * | 2012-05-15 | 2014-01-15 | 东北电力科学研究院有限公司 | IEC61850 detection platform of power quality monitoring terminal and detection method thereof |
| CN102841330B (en) * | 2012-08-02 | 2016-05-25 | 中国电力科学研究院 | A kind of calibration steps for calibration analyte instrument |
| CN103823141A (en) * | 2014-02-28 | 2014-05-28 | 国家电网公司 | Method for simultaneously measuring qualities of electric energy of multiple alternating current circuits based on digital signals |
| CN104833939B (en) * | 2015-05-29 | 2017-08-04 | 广东电网有限责任公司佛山供电局 | Voltage transient failure calibrating instrument based on equipment for monitoring power quality |
| CN106154202B (en) * | 2016-07-26 | 2018-09-21 | 东莞市广安电气检测中心有限公司 | A kind of calibration method of electrical short-circuit testing ＆ measuring system |
| CN111308188A (en) * | 2020-03-31 | 2020-06-19 | 湖南省计量检测研究院 | High-precision direct-current electric energy meter metering device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080172192A1 (en) * | 2005-01-27 | 2008-07-17 | Electro Industries/Gauge Tech. | Intelligent Electronic Device with Board-Range High Accuracy |
| CN201583643U (en) * | 2010-01-19 | 2010-09-15 | 山东省计量科学研究院 | Automatic test and calibration device of electric energy quality analyzer |
| CN101968537A (en) * | 2010-08-23 | 2011-02-09 | 太原市优特奥科电子科技有限公司 | Error magnitude calibration device and transferring method for digital power quality analyzer |
| CN202008526U (en) * | 2011-03-07 | 2011-10-12 | 安徽省电力科学研究院 | Accuracy verification system for digital signal based electric energy quality measurement device |
-
2011
- 2011-03-07 CN CN 201120056204 patent/CN202008526U/en not_active Expired - Lifetime
- 2011-11-29 WO PCT/CN2011/083159 patent/WO2012119467A1/en active Application Filing
- 2011-11-29 CA CA2801140A patent/CA2801140A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080172192A1 (en) * | 2005-01-27 | 2008-07-17 | Electro Industries/Gauge Tech. | Intelligent Electronic Device with Board-Range High Accuracy |
| CN201583643U (en) * | 2010-01-19 | 2010-09-15 | 山东省计量科学研究院 | Automatic test and calibration device of electric energy quality analyzer |
| CN101968537A (en) * | 2010-08-23 | 2011-02-09 | 太原市优特奥科电子科技有限公司 | Error magnitude calibration device and transferring method for digital power quality analyzer |
| CN202008526U (en) * | 2011-03-07 | 2011-10-12 | 安徽省电力科学研究院 | Accuracy verification system for digital signal based electric energy quality measurement device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353558A (en) * | 2013-05-31 | 2013-10-16 | 深圳市康必达控制技术有限公司 | Power quality monitoring method |
| CN103439591A (en) * | 2013-05-31 | 2013-12-11 | 深圳市康必达控制技术有限公司 | Electric energy quality monitoring and controlling system |
| CN103792508A (en) * | 2014-01-27 | 2014-05-14 | 国家电网公司 | Error test system and method for digitized metering device |
| CN104535948A (en) * | 2014-11-30 | 2015-04-22 | 国网河南省电力公司电力科学研究院 | Power quality online monitoring device batch calibration system and calibration method |
| CN106443552A (en) * | 2016-07-27 | 2017-02-22 | 国网重庆市电力公司电力科学研究院 | Line and method for simulating operation environment of metering box to switch power supply phases |
| CN106443552B (en) * | 2016-07-27 | 2019-03-01 | 国网重庆市电力公司电力科学研究院 | A kind of analog measurement case running environment carries out the separate switching route of electricity consumption and method |
| CN113884970A (en) * | 2021-09-24 | 2022-01-04 | 广西电网有限责任公司电力科学研究院 | On-site online calibration method for harmonic parameters of power quality monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202008526U (en) | 2011-10-12 |
| CA2801140A1 (en) | 2012-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012119467A1 (en) | Accuracy verification system for digital signal-based electric power quality measuring apparatus | |
| CN201444193U (en) | Comprehensive error detection device used for digital electric energy measuring device | |
| CN101872004B (en) | Calibrating test device of electronic type transformer checking instrument | |
| CN102072999B (en) | Connection testing device of electric energy metering device and using method thereof | |
| Cataliotti et al. | A novel approach to current transformer characterization in the presence of harmonic distortion | |
| WO2012159400A1 (en) | Online check meter of high-voltage electric energy metering device | |
| CN111025218B (en) | System and method for online real-time self-calibration of clamp-on ammeter | |
| CN104407209B (en) | A kind of Energy Efficiency of Distribution Transformer gauge check method | |
| CN103675749A (en) | Performance detector of electric energy meter under direct current and even harmonic conditions | |
| CN204065394U (en) | A kind of digital electric energy meter in-situs tester based on IEC61850 | |
| CN202041583U (en) | Sweep-frequency measuring device for short-circuit impedance of transformer | |
| WO2018018467A1 (en) | Method for calibrating short circuit test measurement system for electric appliance | |
| CN106546938A (en) | A kind of anti-DC component of current transformer and test even system | |
| CN110045318A (en) | The device and method that assessment dynamic harmonic and temperature change influence electric energy meter error | |
| CN201689168U (en) | Calibration test device of an electronic transformer calibration instrument | |
| CN204116451U (en) | A kind of Energy Efficiency of Distribution Transformer measuring and testing device | |
| CN106772197B (en) | Calibration device for load box of mutual inductor | |
| CN203572957U (en) | On-site meter calibration system | |
| CN203551762U (en) | Electronic instrument transformer and merging unit verification system | |
| WO2022252664A1 (en) | Wireless electrical sensor, and electrical parameter measurement and calculation apparatus, method and system | |
| CN202002900U (en) | Soil moisture, conductivity measurement instrument based on phase detection | |
| CN203629536U (en) | Transformer winding analyzer | |
| CN216013476U (en) | Measuring system for no-load current and no-load voltage of transformer | |
| CN216144942U (en) | Wireless electric sensor, electric parameter measurement and calculation device and system | |
| CN201837694U (en) | Wiring tester for electric energy metering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11860152 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2801140 Country of ref document: CA |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 11860152 Country of ref document: EP Kind code of ref document: A1 |