CN103884929A - Sampling rate self-adaptive electric energy quality monitoring device based on IEC61850 - Google Patents
Sampling rate self-adaptive electric energy quality monitoring device based on IEC61850 Download PDFInfo
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- CN103884929A CN103884929A CN201310641937.2A CN201310641937A CN103884929A CN 103884929 A CN103884929 A CN 103884929A CN 201310641937 A CN201310641937 A CN 201310641937A CN 103884929 A CN103884929 A CN 103884929A
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Abstract
The invention provides a sampling rate self-adaptive electric energy quality monitoring device based on IEC61850. Multiple work stations are connected with the input ends of multiple servers via a station control layer network. The output ends of the multiple servers are connected with a monitoring device via a process layer and a separation layer in turn. The monitoring device comprises a communication module, a data processing module, a data display and management module and a system configuration module. The communication module is used for being connected with an electric energy quality monitoring device and transmitting the required statistic data and real-time data related to an electric energy quality monitoring system in the servers. The data processing module is used for performing data processing on the sampled data and calculating basic electric energy quality parameters, flicker values and harmonic parameters. The data display and management module is used for performing data partition storage on the data transmitted in the servers and demonstrating the electric energy quality data in a graphic chart way. The system configuration module is used for detecting and configuring the electric energy quality monitoring device.
Description
Technical field
The present invention relates to a kind of sampling rate self-adaptation electric energy quality monitoring device based on IEC61850.
Background technology
In the time there is the deviation of voltage, electric current or frequency in electrical network, can cause load capacity and the hydraulic performance decline of consumer, even can cause consumer cisco unity malfunction.Electric energy quality monitoring is the important step of improving electrical network quality of power supply level.Along with the deeply development such as modern network technology, Fibre Optical Communication Technology and standardization agreement, and can be data acquisition, long-distance transmissions and shared, the timely technical support that provides ripe of analyzing, the electric energy quality monitoring system of networking starts to become the main way of electric energy quality monitoring.IEC61850 is a set of international standard about electric substation automation system structure and data, its objective is between the intelligent electronic device (IED) that makes different vendor and realize interoperability and information sharing by a kind of standard agreement, the manufacture message specification (MMS) of its compatibility can provide network to waiting for real-time communication service.Therefore, the electric energy quality monitoring system that possesses Real-Time Monitoring ability of framework based on IEC61850 communication protocol has great importance.But up to the present, in power quality system framework field, IEC61850 communication standard is only realized in a certain generic module, and not yet solves the data transmission problems of real-time channel from multi-platform multilingual electric energy quality monitoring system angle.
Summary of the invention
The invention provides a kind of sampling rate self-adaptation electric energy quality monitoring device based on IEC61850, it can carry out comprehensive monitoring to the IEC61850 communication of electric energy quality monitoring terminal.
The present invention has adopted following technical scheme: a kind of sampling rate self-adaptation electric energy quality monitoring device based on IEC61850, it comprises some workstations, station level network, some servers and monitoring device, some workstations are connected with the input end of some servers by station level network, the output terminal of some servers is connected with monitoring device with wall by process layer successively, station level network for the electric system at monitoring station about the parameter of the quality of power supply and parameter is transferred to server stores, described monitoring device comprises communication module, data processing module, data demonstration and administration module and system configuration module, described communication module is used for and is connected power quality monitoring device connection transmission server about the required statistics of electric energy quality monitoring system and real time data, described data processing module is for carrying out data processing to sampled data, calculate basic power quality parameter, flickering value and harmonic parameters, described data show and administration module carries out data partition storage for the data that server is transmitted, and show power quality data in the mode of graphical diagrams, described system configuration module for detection of and configure power quality monitoring device.
Described communication module is based on IEC61850 communication protocol, and communication module adopts PQDIF file data form transmission statistic data and configuration information, and described real time data is transmitted with the report form specifying in IEC61850 international standard.Described data processing module can deal with data comprise basic power quality parameter, flickering value and harmonic parameters, data processing module has adopted sampling rate adaptive algorithm, sampling rate adaptive algorithm can judge whether sampled value is every cycle 200 points voluntarily, in the time occurring that sampled value is not 200, every cycle, data processing module is every cycle 200 points by data acquisition sample value automatic interpolation, thereby meet the requirement of quality of power supply algorithm, carry out analytical calculation.The parameter of the described quality of power supply is three-phase voltage, electric current, frequency, power, power factor; Three-phase 2-50 subharmonic voltage, electric current, power; Voltage flicker value when three-phase voltage fluctuation and flickering, short time voltage flickering value, length; Three-phase voltage current degree of unbalancedness.
The present invention has following beneficial effect: adopted after above technical scheme, communication module of the present invention is based on IEC61850 communication protocol, for connecting power quality monitoring device, required statistics and the real time data of electric energy transmitting mass monitoring system; Described data processing module carries out the data processing of sampled data, calculates basic power quality parameter, flickering value and harmonic parameters; Data show and administration module carries out the partitioned storage of data, and show power quality data in modes such as graphical diagrams; Described system configuration module for detection of and configure power quality monitoring device, can carry out comprehensive monitoring to the IEC61850 communication of electric energy quality monitoring terminal like this.Sampling rate adaptive algorithm of the present invention, can be every cycle 200 point sampling values by data acquisition sample value automatic interpolation, meets the requirement of quality of power supply algorithm, carries out analytical calculation.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is data processing structure schematic diagram of the present invention.
Fig. 3 is data management structure schematic diagram of the present invention.
Embodiment
Embodiment mono-, at Fig. 1, in Fig. 2 and Fig. 3, the invention provides a kind of sampling rate self-adaptation electric energy quality monitoring device based on IEC61850, it comprises some workstations, station level network, some servers and monitoring device, the present embodiment is provided with two workstations and two servers, two workstations are connected with the input end of two servers by station level network, the output terminal of two servers is connected with monitoring device with wall by process layer successively, station level network for the electric system at monitoring station about the parameter of the quality of power supply and parameter is transferred to server stores, described monitoring device comprises communication module, data processing module, data demonstration and administration module and system configuration module, described communication module is used for and is connected power quality monitoring device connection transmission server about the required statistics of electric energy quality monitoring system and real time data, described communication module is based on IEC61850 communication protocol, communication module adopts PQDIF file data form transmission statistic data and configuration information, real time data is transmitted with the report form specifying in IEC61850 international standard, described data processing module is for carrying out data processing to sampled data, calculate basic power quality parameter, flickering value and harmonic parameters, described data processing module can deal with data comprise basic power quality parameter, flickering value and harmonic parameters, data processing module has adopted sampling rate adaptive algorithm, sampling rate adaptive algorithm can judge whether sampled value is every cycle 200 points voluntarily, in the time occurring that sampled value is not 200, every cycle, data processing module is every cycle 200 points by data acquisition sample value automatic interpolation, thereby meet the requirement of quality of power supply algorithm, carry out analytical calculation, described data show and administration module carries out data partition storage for the data that server is transmitted, and show power quality data in the mode of graphical diagrams, described system configuration module for detection of and configure power quality monitoring device, the parameter of the described quality of power supply is three-phase voltage, electric current, frequency, power, power factor, three-phase 2-50 subharmonic voltage, electric current, power, voltage flicker value when three-phase voltage fluctuation and flickering, short time voltage flickering value, length, three-phase voltage current degree of unbalancedness.
Claims (4)
1. the sampling rate self-adaptation electric energy quality monitoring device based on IEC61850, it is characterized in that it comprises some workstations, station level network, some servers and monitoring device, some workstations are connected with the input end of some servers by station level network, the output terminal of some servers is connected with monitoring device with wall by process layer successively, station level network for the electric system at monitoring station about the parameter of the quality of power supply and parameter is transferred to server stores, described monitoring device comprises communication module, data processing module, data demonstration and administration module and system configuration module, described communication module is used for and is connected power quality monitoring device connection transmission server about the required statistics of electric energy quality monitoring system and real time data, described data processing module is for carrying out data processing to sampled data, calculate basic power quality parameter, flickering value and harmonic parameters, described data show and administration module carries out data partition storage for the data that server is transmitted, and show power quality data in the mode of graphical diagrams, described system configuration module for detection of and configure power quality monitoring device.
2. the sampling rate self-adaptation electric energy quality monitoring device based on IEC61850 according to claim 1, it is characterized in that described communication module is based on IEC61850 communication protocol, communication module adopts PQDIF file data form transmission statistic data and configuration information, and described real time data is transmitted with the report form specifying in IEC61850 international standard.
3. the sampling rate self-adaptation electric energy quality monitoring device based on IEC61850 according to claim 1, it is characterized in that described data processing module can deal with data comprise basic power quality parameter, flickering value and harmonic parameters, data processing module has adopted sampling rate adaptive algorithm, sampling rate adaptive algorithm can judge whether sampled value is every cycle 200 points voluntarily, in the time occurring that sampled value is not 200, every cycle, data processing module is every cycle 200 points by data acquisition sample value automatic interpolation, thereby meet the requirement of quality of power supply algorithm, carry out analytical calculation.
4. the sampling rate self-adaptation electric energy quality monitoring device based on IEC61850 according to claim 1, is characterized in that the parameter of the described quality of power supply is three-phase voltage, electric current, frequency, power, power factor; Three-phase 2-50 subharmonic voltage, electric current, power; Voltage flicker value when three-phase voltage fluctuation and flickering, short time voltage flickering value, length; Three-phase voltage current degree of unbalancedness.
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Cited By (3)
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| CN105158556A (en) * | 2015-08-28 | 2015-12-16 | 国家电网公司 | Resident user power supply voltage quality monitoring method |
| CN106707151A (en) * | 2016-12-15 | 2017-05-24 | 中国南方电网有限责任公司超高压输电公司贵阳局 | High-voltage breaker online monitoring system |
| CN108387794A (en) * | 2018-01-09 | 2018-08-10 | 国网山东省电力公司滨州供电公司 | A kind of electrical energy monitoring system |
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| CN103884929B (en) | 2017-06-16 |
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