CN104200323A - Electric energy quality monitoring and management system - Google Patents
Electric energy quality monitoring and management system Download PDFInfo
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- CN104200323A CN104200323A CN201410442694.4A CN201410442694A CN104200323A CN 104200323 A CN104200323 A CN 104200323A CN 201410442694 A CN201410442694 A CN 201410442694A CN 104200323 A CN104200323 A CN 104200323A
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Abstract
The invention relates to an electric energy quality monitoring and management system which is characterized by comprising a data acquisition unit, a data storage unit, a real-time analysis display unit, a historical analysis display unit, an analysis report unit and an event and alarm unit, wherein the data acquisition unit is used for acquiring electrical data of an installing electric energy quality monitoring terminal in real time and respectively transmitting the electrical data to the data storage unit, the real-time analysis display unit and the event and alarm unit, the data storage unit is used for periodically storing the electrical data, the real-time analysis display unit is used for judging and identifying the electrical data in real time and displaying the data in a picture or chart and graph mode, the historical analysis display unit is used for acquiring the electrical data stored by the data storage unit and displaying historical data in the picture or chart and graph mode, the analysis report unit is used for acquiring, counting and analyzing the electrical data stored by the data storage unit and generating an analysis report, and the event and alarm unit is used for giving an alarm for standard exceeding out-of-limit data according to set conditions and recording startup and shutdown events.
Description
Technical field
The present invention relates to a kind of management system for monitoring, particularly about a kind of electric energy quality monitoring management system.
Background technology
Electric power supply is the mainstay that modern society depends on for existence, under perfect condition, utility network should be with constant frequency, normal voltage and sinusoidal waveform to customer power supply, but the equipment such as the generator in electric system, transformer and circuit are non-linear or asymmetric, load character is changeable at random, in addition control measures imperfection, operation, external interference and various failure and other reasons, produced the variety of issue in operation of power networks, power equipment and power supply link.Along with the development of new high-tech industry, a lot of power electronic equipments and consumer increase the susceptibility of the quality of power supply, and more enterprise and power consumer are also more and more higher to the requirement of power supply quality.But the quality of power supply is different from common product quality, different supply terminals and different power supply moment, its index is different, the quality of power supply on room and time all in dynamic change.It is the first step of analysis and solve power quality problem that power quality index is monitored, and can provide practical foundation for the comprehensive assessment of the quality of power supply.
A kind of electric energy quality monitoring system is disclosed in prior art, it is mainly the monitoring for Utilities Electric Co.'s internal electric energy quality index, it is in monitoring instrument, to be provided with a unified data layout port, server web system need to be identified monitoring device, to obtain its configuration information, status information etc., and by back-end data processing subsystem, data are carried out to stores processor.Simultaneously, along with the rapid progress of the network communications technology and infotech, also many monitoring systems relevant to the quality of power supply have been there are, but all there is following problem in prior art substantially: 1) most monitoring management about the quality of power supply is mainly for Utilities Electric Co. or electrical network, and in fact,, there is tight demand in some enterprises and institutions to quality of power supply sensitivity to the monitoring management of the quality of power supply; 2) most Power quality management mainly concentrates on Real-Time Monitoring, and lacks analysis and statistics to historical data; 3) monitoring rate of the quality of power supply is more general loose, just rests in local scope of disperseing and carries out, and what really need at present is total solution; 4) monitoring management lacks unified data basis.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of applied range, and can be to the electric data relevant to the quality of power supply from collection, alarm to the electric energy quality monitoring management system of adding up, analyzing.
For achieving the above object, the present invention takes following technical scheme: a kind of electric energy quality monitoring management system, is characterized in that: it comprises a data acquisition unit, a data storage cell, a real-time analysis display unit, a historical analysis display unit, an analytical statement unit and an event and Alarm Unit; Described data acquisition unit is arranged on the electric data of the electric energy quality monitoring terminal at each type load and power supply point of presence place for Real-time Collection, and it is sent to respectively to described data storage cell, real-time analysis display unit and event and Alarm Unit; Described data storage cell carries out periodicity storage according to cycle and the data type set to electric data; Described real-time analysis display unit judges electric data in real time and identifies, and shows data with picture or chart graphics mode; Described historical analysis display unit obtains the electric data that described data storage cell is stored, and shows historical data with picture or chart graphics mode; Described analytical statement unit obtains the electric data statistical study that described data storage cell stores and generates analytical statement; Described event and Alarm Unit are reported to the police to the out-of-limit data that exceed standard according to the condition of setting, and split shut down event and carry out record.
Described data acquisition unit carries out rough handling to the electric data gathering, then electric data is sent to described data storage cell, real-time analysis display unit and event and Alarm Unit with the frequency of setting; Wherein, described electric data comprises three-phase current, three-phase voltage, harmonic wave, frequency and the power of on-the-spot equipment to be detected.
Described data acquisition unit adopts wired mode or wireless mode when the electric data of electric energy quality monitoring terminal is gathered.
Described data storage cell carries out periodicity storage to data in real time, and specific works process is: 1) receive in real time described data acquisition unit data and store with storage data type according to setting the storage data cycle; 2) in timed task plan mode to the real time data storage of classifying, wherein, classification storage refers to stores the data of collecting by real time data and historical data classification, historical data is by year, month, day, hour classification storage and press the storage of power quality index category classification.
Described real-time analysis display unit sends the frequency to set real-time electric data to described data acquisition unit carries out poll, according to electric data with mark electric data is identified, show by picture or chart figure, wherein, described picture or chart graphics mode are to show monitoring point current waveform, voltage waveform, three-phase voltage phasing degree, harmonic wave, frequency, also can show in real time simultaneously monitoring point the running status of corresponding field apparatus.
Described historical analysis display unit obtains the electric data that described data storage cell is stored, and shows historical data with picture or chart graphics mode, and its course of work is: 1) take out electric data from described data storage cell; 2) power quality index related electric data are added up: to from monitoring point gather all kinds of electric datas on time, day, month, year or random time section add up; 3) monitoring state is added up: working time to the corresponding field apparatus in monitoring point, device parameter are on time, day, month, year or random time section add up; 4) to electric data association analysis: on time, day, month, year or random time section in conjunction with the statistical study of electric utility status of processes parameter association; 5) statistical study represents with post figure, curve, pie chart, form or oscillogram mode.
Described analytical statement unit obtains the electric data statistical study that described data storage cell stores and generates analytical statement, and specific works process is: 1) electric data obtaining is carried out to statistical study by power quality index classification; 2) collect the detailed statistics of power quality problem that monitoring point produces; 3) generate on a time period statistical forms, comprise mean value, maximal value, minimum value, maximal value duration, minimum value duration, the rate that transfinites or no qualified of statistical parameter; 4) be analyzed with the information such as self-defined limits value or GB, by equipment, time, circuit or electric pressure information classification statistics generation analytical statement.
Described event and Alarm Unit are reported to the police to the out-of-limit data that exceed standard according to the condition of setting, and split shut down event and carry out record, and its specific works process is: 1) alarm of the configuration quality of power supply produces sender's information of condition, rank and notice; 2) receive the facility switching machine data that described data acquisition unit sends, switching on and shutting down event refers to the on off state switch data of equipment; 3) receive the real time data that described data acquisition unit sends, the comparison upper limit, lower limit, if exceeded standard, alarm, and warning information is sent to described real-time analysis display unit; 4) event and alarm are sent to notify recipients by voice, note, lettergram mode.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the set data acquisition unit of the present invention is owing to can supporting multi-protocols to communicate by letter with electric energy quality monitoring terminal, can gather in real time the electric data relevant with the quality of power supply producing, and the electric data gathering is carried out to buffer memory after rough handling, transmission frequency according to configuration is sent to event and Alarm Unit, real-time analysis display unit and data storage cell, has solved the standardization issue of data layout and has effectively improved the accuracy that sends data.2, the present invention is owing to monitoring point being carried out to long-time monitoring effectively and to the electric data classification storage gathering, therefore can inquiring about by the dimension such as timesharing, classification historical data.3, the set historical analysis display unit of the present invention and analytical statement unit are due to the system configuration function of multi-functional chart and perfect in shape and function being provided, therefore user not only can be analyzed the historical data of power quality problem intuitively, but also can self-defined configuration form content and comparative analysis condition, when having simplified user's running program, meet user's individual demand.4, the present invention can store without data, data acquisition unit directly sends to real-time analysis display unit by the electric data of collection and analyzes displaying, also can directly electric data be sent to event and Alarm Unit is reported to the police to abnormal data, therefore user can react power quality problem quickly and easily.5, the present invention builds and starts with from overall plan, supports self-defined configuration electric energy quality monitoring content, makes enterprises and institutions to customize electric energy quality monitoring Managed Solution in conjunction with s own situation.In sum, system flexibility of the present invention is strong, and stability is high, to improve the normal work of security, reliability and economy, guarantee consumer of consumer and production continue be efficiently all of great significance.
Brief description of the drawings
Fig. 1 is the workflow schematic diagram of electric energy quality monitoring management system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, electric energy quality monitoring management system of the present invention comprises a data acquisition unit 1, a data storage cell 2, a real-time analysis display unit 3, a historical analysis display unit 4, an analytical statement unit 5 and an event and Alarm Unit 6; Data acquisition unit 1 is arranged on the electric data of the electric energy quality monitoring terminal at each type load and power supply point of presence place for Real-time Collection, and it is sent to respectively to data storage cell 2, real-time analysis display unit 3 and event and Alarm Unit 6; Data storage cell 2 carries out periodicity storage according to cycle and the data type set to electric data; Real-time analysis display unit 3 judges electric data in real time and identifies, and shows data with picture or chart graphics mode; Historical analysis display unit 4 obtains the electric data that data storage cell 2 is stored, and shows historical data with picture or chart graphics mode; Analytical statement unit 5 obtains the electric data statistical study that data storage cell 2 stores and generates analytical statement; Event and Alarm Unit 6 are reported to the police to the out-of-limit data that exceed standard according to the condition of setting, and split shut down event and carry out record.
In a preferred embodiment, data acquisition unit 1 carries out rough handling to the electric data gathering, the abnormal data that zero drift phenomenon occurs while filtering out due to instrument measurement or produce due to interference, and mark is set for electric data, that is: for data receiver's (data storage cell 2, real-time analysis display unit 3 and event and Alarm Unit 6) can identification data collecting unit 1) electric data that sends, need transmit leg and take over party to appoint Data Identification, when sending data, data acquisition unit 1 can before every data message, add mark, as 001001, front three 001 represents that device name is the equipment of " 1# ", rear three 001 representation parameters are voltage), again electric data is sent to data storage cell 2 with the frequency of setting, real-time analysis display unit 3 and event and Alarm Unit 6, wherein, electric data can comprise the electric datas relevant to the quality of power supply such as three-phase current, three-phase voltage, harmonic wave, frequency and the power of on-the-spot equipment to be detected.In addition, data acquisition unit 1 can adopt wired mode (RS485, RS232, Ethernet) or wireless mode to carry out communication when the electric data of electric energy quality monitoring terminal is gathered, support to use the agreements such as MODBUS agreement, OPC agreement or DTL645 agreement to set up communication with electric energy quality monitoring terminal and be connected.
In a preferred embodiment, data storage cell 2 carries out periodicity storage to data in real time, specific works process is: 1) receive in real time data acquisition unit 1 data and store with storage data type according to setting the storage data cycle, wherein, data type refers to the electric parameter relevant to power quality problem statistical study, as three-phase voltage, three-phase current, frequency, power or harmonic value; 2) in timed task plan mode to the real time data storage of classifying, and the electric data of storage is sent to historical analysis display unit 4 and analytical statement unit 5, wherein, classification storage refers to stores the data of collecting by real time data and historical data classification, historical data can and be pressed the storage of power quality index category classification by year, month, day, hour classification storage again.The power quality index classification that data storage cell 2 is stored both can comprise five Steady State Power Qualities of voltage deviation, frequency departure, harmonic wave, voltage fluctuation and flickering, tri-phase unbalance factor that GB specifies, also can comprise the temporary unspecified voltage dip of GB, voltage swells and three transient state indexs of voltage interruption.
In a preferred embodiment, real-time analysis display unit 3 judges electric data in real time and identifies, and show data with picture or chart graphics mode, specific works flow process is: real-time analysis display unit 3 electric data that reception data storage cell 1 sends in real time also carries out buffer memory to it, with the frequency of setting, the data of buffer memory are carried out to poll again, according to electric data with mark electric data is identified, show by figure or picture, herein be mainly to show monitoring point current waveform with picture or chart figure, voltage waveform, three-phase voltage phasing degree, harmonic wave, the information such as frequency, also can show in real time simultaneously monitoring point the running status of corresponding field apparatus.
In a preferred embodiment, historical analysis display unit 4 obtains the electric data that data storage cell 2 is stored, and shows historical data with picture or chart graphics mode, and its course of work is: 1) take out electric data from data storage cell 2; 2) power quality index related electric data are added up: to from monitoring point gather all kinds of electric datas (harmonic voltage, harmonic current, frequency, load etc.) on time, day, month, year or random time section add up; 3) monitoring state is added up: working time (switching time, switch duration) to the corresponding field apparatus in monitoring point, device parameter are on time, day, month, year or random time section add up; 4) to electric data association analysis: on time, day, month, year or random time section in conjunction with the statistical study of electric utility status of processes parameter association; 5) statistical study represents with post figure, curve, pie chart, form, oscillogram mode.
In a preferred embodiment, analytical statement unit 5 obtains the electric data statistical study that data storage cell 2 stores and generates analytical statement, specific works process is: 1) electric data obtaining is carried out to statistical study by power quality index classification, wherein, index classification comprises: the power quality index that the GBs such as voltage interruption, current three-phase imbalance specify, and statistical study object is to check by the time information such as number of times that all kinds of quality of power supply occurs, duration, severity level; 2) collect the detailed statistics of power quality problem that monitoring point produces (as the triggered time of power quality problem etc.); 3) generate on a time period statistical forms, comprise the mean value, maximal value, minimum value, maximal value duration, minimum value duration, the rate that transfinites of statistical parameter, whether qualified etc.; 4) with self-defined limits value or be analyzed according to GB, by information classification statistics generation analytical statements such as equipment, time, circuit, electric pressures.Analytical statement unit 5 can provide fundamental voltage, fundamental current trend curve; Voltage deviation trend curve; Voltage, electric current resultant distortion rate curve of secular trend; Voltage, electric current each harmonic curve of secular trend; Voltage, electric current each harmonic spectrum curve; Long-term flickering value, short-term flickering value trend curve; Voltage tri-phase unbalance factor trend curve; Current three-phase degree of unbalancedness trend curve; Power trend curve; The waveform of the transient power quality phenomenons such as voltage swells/rapid drawdown, interruption in short-term shows.
In a preferred embodiment, event and Alarm Unit 6 are reported to the police to the out-of-limit data that exceed standard according to the condition of setting, and split shut down event and carry out record, its specific works process is: 1) alarm of the configuration quality of power supply produces condition, sender's information of rank and notice, wherein, configuration alarm produces condition and arranges according to actual conditions: such as standard voltage value is 220V, the condition that arranges is reported to the police for exceeding 10%, in the time that being greater than 242V, the magnitude of voltage gathering will report to the police so, rank arranges according to actual conditions, for example: carry out classification according to the order of severity, as voltage interruption can be made as seriously, voltage over standard can be set to common, notify sender: configure corresponding alarm the user who needs notice to arrive occurs, 2) receive the facility switching machine data that data acquisition unit 1 sends, switching on and shutting down event refers to the on off state switch data of equipment, 3) receive the real time data (harmonic voltage value, harmonic current value, frequency etc.) that data acquisition unit 1 sends, the comparison upper limit, lower limit, if exceeded standard, alarm, for example: when power limitation is set is 5000W, the frequency collecting is carried out alarm during higher than 5000W, and warning information is sent to real-time analysis display unit 3, 4) event and alarm are sent to notify recipients by voice, note, lettergram mode.
The various embodiments described above are only for illustrating the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (8)
1. an electric energy quality monitoring management system, is characterized in that: it comprises a data acquisition unit, a data storage cell, a real-time analysis display unit, a historical analysis display unit, an analytical statement unit and an event and Alarm Unit;
Described data acquisition unit is arranged on the electric data of the electric energy quality monitoring terminal at each type load and power supply point of presence place for Real-time Collection, and it is sent to respectively to described data storage cell, real-time analysis display unit and event and Alarm Unit; Described data storage cell carries out periodicity storage according to cycle and the data type set to electric data; Described real-time analysis display unit judges electric data in real time and identifies, and shows data with picture or chart graphics mode; Described historical analysis display unit obtains the electric data that described data storage cell is stored, and shows historical data with picture or chart graphics mode; Described analytical statement unit obtains the electric data statistical study that described data storage cell stores and generates analytical statement; Described event and Alarm Unit are reported to the police to the out-of-limit data that exceed standard according to the condition of setting, and split shut down event and carry out record.
2. a kind of electric energy quality monitoring management system as claimed in claim 1, it is characterized in that: described data acquisition unit carries out rough handling to the electric data gathering, then electric data is sent to described data storage cell, real-time analysis display unit and event and Alarm Unit with the frequency of setting; Wherein, described electric data comprises three-phase current, three-phase voltage, harmonic wave, frequency and the power of on-the-spot equipment to be detected.
3. a kind of electric energy quality monitoring management system as claimed in claim 2, is characterized in that: described data acquisition unit adopts wired mode or wireless mode when the electric data of electric energy quality monitoring terminal is gathered.
4. a kind of electric energy quality monitoring management system as described in claim 1 or 2 or 3, it is characterized in that: described data storage cell carries out periodicity storage to data in real time, specific works process is: 1) receive in real time described data acquisition unit data and store with storage data type according to setting the storage data cycle; 2) in timed task plan mode to the real time data storage of classifying, wherein, classification storage refers to stores the data of collecting by real time data and historical data classification, historical data is by year, month, day, hour classification storage and press the storage of power quality index category classification.
5. a kind of electric energy quality monitoring management system as described in claim 1 or 2 or 3, it is characterized in that: described real-time analysis display unit sends the frequency to set real-time electric data to described data acquisition unit carries out poll, according to electric data with mark electric data is identified, show by picture or chart figure, wherein, described picture or chart graphics mode are to show monitoring point current waveform, voltage waveform, three-phase voltage phasing degree, harmonic wave, frequency, also can show in real time simultaneously monitoring point the running status of corresponding field apparatus.
6. a kind of electric energy quality monitoring management system as described in claim 1 or 2 or 3, it is characterized in that: described historical analysis display unit obtains the electric data that described data storage cell is stored, show historical data with picture or chart graphics mode, its course of work is: 1) take out electric data from described data storage cell; 2) power quality index related electric data are added up: to from monitoring point gather all kinds of electric datas on time, day, month, year or random time section add up; 3) monitoring state is added up: working time to the corresponding field apparatus in monitoring point, device parameter are on time, day, month, year or random time section add up; 4) to electric data association analysis: on time, day, month, year or random time section in conjunction with the statistical study of electric utility status of processes parameter association; 5) statistical study represents with post figure, curve, pie chart, form or oscillogram mode.
7. a kind of electric energy quality monitoring management system as described in claim 1 or 2 or 3, it is characterized in that: described analytical statement unit obtains the electric data statistical study that described data storage cell stores and generates analytical statement, and specific works process is: 1) electric data obtaining is carried out to statistical study by power quality index classification; 2) collect the detailed statistics of power quality problem that monitoring point produces; 3) generate on a time period statistical forms, comprise mean value, maximal value, minimum value, maximal value duration, minimum value duration, the rate that transfinites or no qualified of statistical parameter; 4) be analyzed with the information such as self-defined limits value or GB, by equipment, time, circuit or electric pressure information classification statistics generation analytical statement.
8. a kind of electric energy quality monitoring management system as described in claim 1 or 2 or 3, it is characterized in that: described event and Alarm Unit are reported to the police to the out-of-limit data that exceed standard according to the condition of setting, and split shut down event and carry out record, its specific works process is: 1) alarm of the configuration quality of power supply produces sender's information of condition, rank and notice; 2) receive the facility switching machine data that described data acquisition unit sends, switching on and shutting down event refers to the on off state switch data of equipment; 3) receive the real time data that described data acquisition unit sends, the comparison upper limit, lower limit, if exceeded standard, alarm, and warning information is sent to described real-time analysis display unit; 4) event and alarm are sent to notify recipients by voice, note, lettergram mode.
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