CN103884929B - A kind of sample rate self adaptation equipment for monitoring power quality based on IEC61850 - Google Patents

A kind of sample rate self adaptation equipment for monitoring power quality based on IEC61850 Download PDF

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CN103884929B
CN103884929B CN201310641937.2A CN201310641937A CN103884929B CN 103884929 B CN103884929 B CN 103884929B CN 201310641937 A CN201310641937 A CN 201310641937A CN 103884929 B CN103884929 B CN 103884929B
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data
power quality
module
iec61850
power
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CN103884929A (en
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何菲
张澄
钱锐
彭祖辉
翟学锋
王红星
陈歆技
冯天祎
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State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Jiangsu Fangtian Power Technology Co Ltd
Taizhou Power Supply Co of Jiangsu Electric Power Co
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State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Jiangsu Fangtian Power Technology Co Ltd
Taizhou Power Supply Co of Jiangsu Electric Power Co
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Abstract

本发明提供了一种基于IEC61850的采样率自适应电能质量监测装置,若干工作站通过站控层网络与若干服务器的输入端连接,若干服务器的输出端依次通过过程层和间隔层与监测装置连接,监测装置包括通讯模块、数据处理模块、数据显示及管理模块和系统配置模块,通讯模块用于与连接电能质量监测设备连接并传输服务器中关于电能质量监测系统所需的统计数据和实时数据,数据处理模块用于对采样数据进行数据处理,计算基本电能质量参数、闪变值及谐波参数;数据显示及管理模块用于对服务器中传输的数据进行数据分区存储,并以图形图表的方式展示电能质量数据;系统配置模块用于检测并配置电能质量监测设备。

The invention provides a sampling rate self-adaptive power quality monitoring device based on IEC61850. Several workstations are connected to the input ends of several servers through the station control layer network, and the output ends of several servers are connected to the monitoring device through the process layer and the interval layer in turn. The monitoring device includes a communication module, a data processing module, a data display and management module and a system configuration module. The communication module is used to connect with the power quality monitoring equipment and transmit the statistical data and real-time data required by the power quality monitoring system in the server. The processing module is used to process the sampled data, and calculate the basic power quality parameters, flicker values and harmonic parameters; the data display and management module is used to partition and store the data transmitted in the server, and display them in the form of graphs and charts Power quality data; the system configuration module is used to detect and configure power quality monitoring equipment.

Description

一种基于IEC61850的采样率自适应电能质量监测装置A Sampling Rate Adaptive Power Quality Monitoring Device Based on IEC61850

技术领域technical field

本发明涉及一种基于IEC61850的采样率自适应电能质量监测装置。The invention relates to a sampling rate adaptive power quality monitoring device based on IEC61850.

背景技术Background technique

当电网中存在电压、电流或频率的偏差时,会造成用电设备的负载能力及性能下降,甚至会导致用电设备不能正常工作。电能质量监测是改善电网电能质量水平的重要环节。随着现代网络技术、光纤通信技术及标准化协议等深入发展,并能为数据采集、远距离传输与共享、及时分析提供成熟的技术支撑,网络化的电能质量监测系统开始成为电能质量监测的主流方式。IEC61850是一套关于变电站自动化系统结构和数据的国际标准,其目的是使不同厂商的智能电子设备(IED)之间通过一种标准协议来实现互操作和信息共享,其兼容的制造报文规范(MMS)能够提供网络对等待实时通信服务。因此,研究架构基于IEC61850通信协议的具备实时监测能力的电能质量监测系统具有重要的意义。然而,到目前为止,在电能质量系统架构领域,IEC61850通信标准仅在某一类模块中实现,而从多平台多语言的电能质量监测系统角度尚未解决实时通道的数据传输问题。When there is a deviation in voltage, current or frequency in the power grid, it will cause the load capacity and performance of the electrical equipment to decline, and even cause the electrical equipment to fail to work normally. Power quality monitoring is an important link to improve the power quality level of the power grid. With the in-depth development of modern network technology, optical fiber communication technology and standardized protocols, and providing mature technical support for data collection, long-distance transmission and sharing, and timely analysis, the networked power quality monitoring system has become the mainstream of power quality monitoring Way. IEC61850 is a set of international standards on the structure and data of substation automation systems. Its purpose is to enable intelligent electronic devices (IEDs) from different manufacturers to achieve interoperability and information sharing through a standard protocol. Its compatible manufacturing message specifications (MMS) can provide the network to wait for the real-time communication service. Therefore, it is of great significance to study the power quality monitoring system with real-time monitoring capability based on the IEC61850 communication protocol. However, so far, in the field of power quality system architecture, the IEC61850 communication standard has only been implemented in a certain type of module, and the problem of data transmission in real-time channels has not been solved from the perspective of a multi-platform and multi-language power quality monitoring system.

发明内容Contents of the invention

本发明提供了一种基于IEC61850的采样率自适应电能质量监测装置,它可以对电能质量监测终端的IEC61850通信进行全面监测。The invention provides a sampling rate adaptive power quality monitoring device based on IEC61850, which can comprehensively monitor the IEC61850 communication of the power quality monitoring terminal.

本发明采用了以下技术方案:一种基于IEC61850的采样率自适应电能质量监测装置,它包括若干工作站、站控层网络、若干服务器和监测装置,若干工作站通过站控层网络与若干服务器的输入端连接,若干服务器的输出端依次通过过程层和间隔层与监测装置连接,站控层网络用于监测工作站的电力系统中关于电能质量的参数并将参数传输给服务器存储,所述的监测装置包括通讯模块、数据处理模块、数据显示及管理模块和系统配置模块,所述的通讯模块用于与连接电能质量监测设备连接并传输服务器中关于电能质量监测系统所需的统计数据和实时数据,所述的数据处理模块用于对采样数据进行数据处理,计算基本电能质量参数、闪变值及谐波参数;所述的数据显示及管理模块用于对服务器中传输的数据进行数据分区存储,并以图形图表的方式展示电能质量数据;所述的系统配置模块用于检测并配置电能质量监测设备。The present invention adopts the following technical solutions: a sampling rate adaptive power quality monitoring device based on IEC61850, which includes several workstations, a station control layer network, several servers and monitoring devices, and several workstations are input through the station control layer network and several servers The output terminals of several servers are connected to the monitoring device through the process layer and the interval layer in turn. The station control layer network is used to monitor the parameters about the power quality in the power system of the workstation and transmit the parameters to the server for storage. The monitoring device Including a communication module, a data processing module, a data display and management module and a system configuration module, the communication module is used to connect with the power quality monitoring equipment and transmit the statistical data and real-time data required by the power quality monitoring system in the server, The data processing module is used to process the sampling data, and calculates basic power quality parameters, flicker values and harmonic parameters; the data display and management module is used to store the data transmitted in the server in partitions, And display the power quality data in the form of graphics and charts; the system configuration module is used to detect and configure power quality monitoring equipment.

所述的通讯模块是基于IEC61850通信协议,通讯模块采用PQDIF文件数据格式传输统计数据和配置信息,所述的实时数据以IEC61850国际标准中规定的报告形式进行传输。所述数据处理模块可处理数据包括基本电能质量参数、闪变值及谐波参数,数据处理模块采用了采样率自适应算法,采样率自适应算法能自行判断采样值是否为每周波200点,当出现采样值不是每周波200点时,数据处理模块将数据采样值自动插值为每周波200点,从而符合电能质量算法要求,进行分析计算。所述的电能质量的参数为三相电压、电流、频率、功率、功率因数;三相2-50次谐波电压、电流、功率;三相电压波动与闪变、短时电压闪变值、长时电压闪变值;三相电压电流不平衡度。The communication module is based on the IEC61850 communication protocol, the communication module uses the PQDIF file data format to transmit statistical data and configuration information, and the real-time data is transmitted in the report form specified in the IEC61850 international standard. The data that can be processed by the data processing module includes basic power quality parameters, flicker values and harmonic parameters. The data processing module adopts a sampling rate adaptive algorithm, and the sampling rate adaptive algorithm can judge whether the sampling value is 200 points per cycle. When the sampling value is not 200 points per cycle, the data processing module automatically interpolates the data sampling value as 200 points per cycle, so as to meet the requirements of the power quality algorithm for analysis and calculation. The parameters of the power quality are three-phase voltage, current, frequency, power, power factor; three-phase 2-50 harmonic voltage, current, power; three-phase voltage fluctuation and flicker, short-term voltage flicker value, Long-term voltage flicker value; three-phase voltage and current imbalance.

本发明具有以下有益效果:采用了以上技术方案后,本发明的通讯模块基于IEC61850通信协议,用于连接电能质量监测设备、传输电能质量监测系统所需的统计数据和实时数据;所述数据处理模块进行采样数据的数据处理,计算基本电能质量参数、闪变值及谐波参数;数据显示及管理模块进行数据的分区存储,并以图形图表等方式展示电能质量数据;所述系统配置模块用于检测并配置电能质量监测设备,这样可以对电能质量监测终端的IEC61850通信进行全面监测。本发明采样率自适应算法,可以将数据采样值自动插值为每周波200点采样值,符合电能质量算法要求,进行分析计算。The present invention has the following beneficial effects: after adopting the above technical scheme, the communication module of the present invention is based on the IEC61850 communication protocol, and is used to connect power quality monitoring equipment and transmit statistical data and real-time data required by the power quality monitoring system; the data processing The module performs data processing of sampling data, and calculates basic power quality parameters, flicker values and harmonic parameters; the data display and management module performs partition storage of data, and displays power quality data in graphics and charts; the system configuration module uses It is used to detect and configure power quality monitoring equipment, so that the IEC61850 communication of the power quality monitoring terminal can be fully monitored. The sampling rate self-adaptive algorithm of the present invention can automatically interpolate the data sampling value as the sampling value of 200 points per cycle, which meets the requirements of the power quality algorithm for analysis and calculation.

附图说明Description of drawings

图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.

图2为本发明的数据处理结构示意图。Fig. 2 is a schematic diagram of the data processing structure of the present invention.

图3为本发明的数据管理结构示意图。Fig. 3 is a schematic diagram of the data management structure of the present invention.

具体实施方式detailed description

实施例一,在图1、图2和图3中,本发明提供了一种基于IEC61850的采样率自适应电能质量监测装置,它包括若干工作站、站控层网络、若干服务器和监测装置,本实施例设有两个工作站和两个服务器,两个工作站通过站控层网络与两个服务器的输入端连接,两个服务器的输出端依次通过过程层和间隔层与监测装置连接,站控层网络用于监测工作站的电力系统中关于电能质量的参数并将参数传输给服务器存储,所述的监测装置包括通讯模块、数据处理模块、数据显示及管理模块和系统配置模块,所述的通讯模块用于与连接电能质量监测设备连接并传输服务器中关于电能质量监测系统所需的统计数据和实时数据,所述的通讯模块是基于IEC61850通信协议,通讯模块采用PQDIF文件数据格式传输统计数据和配置信息,实时数据以IEC61850国际标准中规定的报告形式进行传输,所述的数据处理模块用于对采样数据进行数据处理,计算基本电能质量参数、闪变值及谐波参数,所述数据处理模块可处理数据包括基本电能质量参数、闪变值及谐波参数,数据处理模块采用了采样率自适应算法,采样率自适应算法能自行判断采样值是否为每周波200点,当出现采样值不是每周波200点时,数据处理模块将数据采样值自动插值为每周波200点,从而符合电能质量算法要求,进行分析计算;所述的数据显示及管理模块用于对服务器中传输的数据进行数据分区存储,并以图形图表的方式展示电能质量数据;所述的系统配置模块用于检测并配置电能质量监测设备,所述的电能质量的参数为三相电压、电流、频率、功率、功率因数;三相2-50次谐波电压、电流、功率;三相电压波动与闪变、短时电压闪变值、长时电压闪变值;三相电压电流不平衡度。Embodiment 1, in Fig. 1, Fig. 2 and Fig. 3, the present invention provides a kind of sampling rate adaptive power quality monitoring device based on IEC61850, it comprises several workstations, station control layer network, several servers and monitoring device, this The embodiment is provided with two workstations and two servers, the two workstations are connected to the input ends of the two servers through the station control layer network, the output ends of the two servers are connected to the monitoring device through the process layer and the interval layer in turn, and the station control layer The network is used to monitor parameters about power quality in the power system of the workstation and transmit the parameters to the server for storage. The monitoring device includes a communication module, a data processing module, a data display and management module and a system configuration module. The communication module It is used to connect with the power quality monitoring equipment and transmit the statistical data and real-time data required by the power quality monitoring system in the server. The communication module is based on the IEC61850 communication protocol, and the communication module uses the PQDIF file data format to transmit statistical data and configuration Information, real-time data is transmitted in the report form specified in the IEC61850 international standard, and the data processing module is used to process the sampling data, calculate basic power quality parameters, flicker values and harmonic parameters, and the data processing module The data that can be processed includes basic power quality parameters, flicker values and harmonic parameters. The data processing module adopts the sampling rate adaptive algorithm. The sampling rate adaptive algorithm can judge whether the sampling value is 200 points per cycle. When the sampling value is not When there are 200 points per cycle, the data processing module will automatically interpolate the data sampling value to 200 points per cycle, so as to meet the requirements of the power quality algorithm and perform analysis and calculation; the data display and management module is used to perform data processing on the data transmitted in the server Store in partitions, and display power quality data in the form of graphics and charts; the system configuration module is used to detect and configure power quality monitoring equipment, and the parameters of power quality are three-phase voltage, current, frequency, power, and power factor ;Three-phase 2-50th harmonic voltage, current, power; Three-phase voltage fluctuation and flicker, short-term voltage flicker value, long-term voltage flicker value; Three-phase voltage and current unbalance.

Claims (1)

1.一种基于IEC61850的采样率自适应电能质量监测装置,其特征是它包括若干工作站、站控层网络、若干服务器和监测装置,若干工作站通过站控层网络与若干服务器的输入端连接,若干服务器的输出端依次通过过程层和间隔层与监测装置连接,站控层网络用于监测工作站的电力系统中关于电能质量的参数并将参数传输给服务器存储,所述的监测装置包括通讯模块、数据处理模块、数据显示及管理模块和系统配置模块,所述的通讯模块用于与连接电能质量监测设备连接并传输服务器中关于电能质量监测系统所需的统计数据和实时数据,所述的数据处理模块用于对采样数据进行数据处理,计算电能质量参数;所述的数据显示及管理模块用于对服务器中传输的数据进行数据分区存储,并以图形图表的方式展示电能质量数据;所述的系统配置模块用于检测并配置电能质量监测设备,所述的通讯模块是基于IEC61850通信协议,通讯模块采用PQDIF文件数据格式传输统计数据和配置信息,所述的实时数据以IEC61850国际标准中规定的报告形式进行传输,所述数据处理模块可处理数据包括电能质量参数,数据处理模块采用了采样率自适应算法,采样率自适应算法能自行判断采样值是否为每周波200点,当出现采样值不是每周波200点时,数据处理模块将数据采样值自动插值为每周波200点,从而符合电能质量算法要求,进行分析计算,所述的电能质量参数为三相电压、电流、频率、功率、功率因数;三相2-50次谐波电压、电流、功率;三相电压波动与闪变、短时电压闪变值、长时电压闪变值;三相电压电流不平衡度。1. A sampling rate adaptive power quality monitoring device based on IEC61850 is characterized in that it includes some workstations, a station control layer network, some servers and monitoring devices, and some workstations are connected with the input ends of some servers through the station control layer network, The output ends of several servers are connected to the monitoring device through the process layer and the interval layer in turn. The station control layer network is used to monitor the parameters about the power quality in the power system of the workstation and transmit the parameters to the server for storage. The monitoring device includes a communication module , a data processing module, a data display and management module and a system configuration module, the communication module is used to connect with the power quality monitoring equipment and transmit the statistical data and real-time data required by the power quality monitoring system in the server, the described The data processing module is used to process the sampled data and calculate the power quality parameters; the data display and management module is used to partition and store the data transmitted in the server, and display the power quality data in the form of graphs and charts; The system configuration module described above is used to detect and configure power quality monitoring equipment. The communication module is based on the IEC61850 communication protocol. The communication module uses the PQDIF file data format to transmit statistical data and configuration information. The real-time data is based on the IEC61850 international standard The specified report form is transmitted. The data processing module can process data including power quality parameters. The data processing module adopts a sampling rate adaptive algorithm. The sampling rate adaptive algorithm can judge whether the sampling value is 200 points per cycle. When the sampling value is not 200 points per cycle, the data processing module will automatically interpolate the data sampling value as 200 points per cycle, so as to meet the requirements of the power quality algorithm and perform analysis and calculation. The power quality parameters described are three-phase voltage, current, frequency, Power, power factor; three-phase 2-50th harmonic voltage, current, power; three-phase voltage fluctuation and flicker, short-term voltage flicker value, long-term voltage flicker value; three-phase voltage and current unbalance.
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