CN104375064A - Partial discharge on-line monitoring alarm confidence coefficient analysis method and device - Google Patents
Partial discharge on-line monitoring alarm confidence coefficient analysis method and device Download PDFInfo
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- CN104375064A CN104375064A CN201410620388.5A CN201410620388A CN104375064A CN 104375064 A CN104375064 A CN 104375064A CN 201410620388 A CN201410620388 A CN 201410620388A CN 104375064 A CN104375064 A CN 104375064A
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Abstract
The invention discloses a partial discharge on-line monitoring alarm confidence coefficient analysis method. The method includes the steps that partial discharge of electrical equipment is monitored on line to obtain real-time monitoring data; the real-time monitoring data are compared with fault atlas data to generate partial discharge alarm information; according to statistics of the type and the frequency of the partial discharge alarm information, corresponding confidence coefficients are set for the partial discharge alarm information; the confidence coefficients corresponding to the partial discharge alarm information are compared with a threshold value, if the confidence coefficients of the partial discharge alarm information are larger than or equal to the threshold value, the partial discharge alarm information is output, and if the confidence coefficients of the partial discharge alarm information are smaller than the threshold value, the partial discharge alarm information is abandoned. The invention correspondingly provides a partial discharge on-line monitoring alarm confidence coefficient analysis device and system. According to the embodiment, the accuracy and the reliability of partial discharge on-line monitoring alarming can be effectively improved, the invalid working amount is reduced, and the device maintaining cost is saved.
Description
Technical field
The invention belongs to the state-detection field of power equipment, particularly relate to and the present invention relates to partial discharge monitoring field, particularly relate to a kind of partial discharge monitoring alarm Confidence Analysis method, Apparatus and system.
Background technology
At present, in electric system, the apparatus local discharge such as transformer, GIS is carried out to the system widespread use of on-line monitoring analysis.Partial discharge monitoring system, a kind of equipment of monitoring the apparatus local discharge such as transformer, GIS, for helping user, monitoring and warning is carried out, to ensure the secondary device that power grid security effectively runs to the fault such as overheated, electric discharge, insulation whether operating power equipment exists latency.When occurring that Monitoring Data exceedes threshold value, partial discharge monitoring system can send alarm prompt, and alert device managerial personnel carry out corresponding treatment measures.
But because the working environment of partial discharge monitoring system sensor is relatively more severe, be easier to occur instantaneous electromagnetic interference problem, cause partial discharge monitoring system to send the warning information of mistake.Fault alarm information will cause follow-up insignificant off-line analysis, increase non-productive work amount and the various resource of waste.
Summary of the invention
Technical matters to be solved by this invention is, a kind of partial discharge monitoring alarm Confidence Analysis method, Apparatus and system are provided, effectively can improve accuracy and the reliability of partial discharge monitoring alarm, reduce non-productive work amount, save cost of equipment maintenance.
In order to solve the problems of the technologies described above, the one side of the embodiment of the present invention provides a kind of partial discharge monitoring alarm Confidence Analysis method, comprises step:
On-line monitoring is carried out to power equipment shelf depreciation, obtains Real-time Monitoring Data;
Described Real-time Monitoring Data and fault graph modal data are compared, generates shelf depreciation warning information, in described shelf depreciation warning information, include shelf depreciation alarm type;
Add up according to each shelf depreciation alarm type and occurrence number, for each shelf depreciation warning information arranges corresponding degree of confidence;
Degree of confidence corresponding to described each shelf depreciation warning information and a threshold value are compared, if when the degree of confidence of described each shelf depreciation warning information is more than or equal to described threshold value, then exports shelf depreciation warning information; Otherwise, abandon described shelf depreciation warning information.
Preferably, add up according to each shelf depreciation alarm type and occurrence number, the step arranging corresponding degree of confidence for each shelf depreciation warning information comprises further:
Add up the number of times of shelf depreciation alarm type and the appearance comprised in all shelf depreciation warning information in each shelf depreciation warning information and a predetermined period before;
According to the judgment rule pre-set, for each shelf depreciation warning information described arranges corresponding degree of confidence.
Preferably, add up according to each shelf depreciation alarm type and occurrence number, the step arranging corresponding degree of confidence for each shelf depreciation warning information comprises further:
In a predetermined period, add up in described predetermined period, the shelf depreciation alarm type comprised in all shelf depreciation warning information and the number of times of appearance;
According to the judgment rule pre-set, for each the shelf depreciation alarm type in described predetermined period arranges corresponding degree of confidence.
Preferably, described predetermined period is for pre-setting, and described shelf depreciation alarm type at least comprises the electric discharge alarm of tube wall burr and superstructure loosening electric discharge alarm; The described judgment rule pre-set specifically comprises:
If receive 3 identical tube wall burr electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 90%;
If receive 1 tube wall burr electric discharge alarm in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 50%;
If receive the electric discharge alarm of 1 tube wall burr and 1 superstructure loosening electric discharge alarm in predetermined period, then 25% is respectively to described tube wall burr electric discharge alarm and the described superstructure loosening degree of confidence that alarm arranges of discharging;
If receive 1 tube wall burr electric discharge alarm and 2 superstructure loosening electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 15%, and the degree of confidence arranged described superstructure loosening electric discharge alarm is 70%.
Preferably, described threshold value is for pre-setting.
Correspondingly, the another aspect of the embodiment of the present invention, also provides a kind of partial discharge monitoring alarm Confidence Analysis device, it is characterized in that, comprising:
Real-time Monitoring Data obtains unit, for carrying out on-line monitoring to power equipment shelf depreciation, obtains Real-time Monitoring Data;
Shelf depreciation warning information generation unit, compares described Real-time Monitoring Data and fault graph modal data, generates shelf depreciation warning information, includes shelf depreciation alarm type in described shelf depreciation warning information;
Degree of confidence setting unit, for according to adding up each shelf depreciation alarm type and occurrence number, for each shelf depreciation warning information arranges corresponding degree of confidence;
Relatively processing unit, for the degree of confidence corresponding to described each shelf depreciation warning information and a threshold value being compared, if when the degree of confidence of described each shelf depreciation warning information is more than or equal to described threshold value, then exports shelf depreciation warning information; Otherwise, abandon described shelf depreciation warning information.
Preferably, described degree of confidence setting unit comprises:
Statistic unit, for adding up the number of times of shelf depreciation alarm type and the appearance comprised in all shelf depreciation warning information in each shelf depreciation warning information and a predetermined period before;
Setting unit, for according to the judgment rule pre-set, for each shelf depreciation warning information described arranges corresponding degree of confidence.
Preferably, described degree of confidence setting unit comprises:
Statistic unit, for every a predetermined period, adds up within the described expectation cycle, the shelf depreciation alarm type comprised in all shelf depreciation warning information and the number of times of appearance;
Setting unit, for the judgment rule pre-set described in basis, for each shelf depreciation alarm type arranges corresponding degree of confidence.
Preferably, described predetermined period is for pre-setting, and described shelf depreciation alarm type at least comprises the electric discharge alarm of tube wall burr and superstructure loosening electric discharge alarm; The described judgment rule pre-set specifically comprises:
If receive 3 identical tube wall burr electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 90%;
If receive 1 tube wall burr electric discharge alarm in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 50%;
If receive the electric discharge alarm of 1 tube wall burr and 1 superstructure loosening electric discharge alarm in predetermined period, then 25% is respectively to described tube wall burr electric discharge alarm and the described superstructure loosening degree of confidence that alarm arranges of discharging;
If receive 1 tube wall burr electric discharge alarm and 2 superstructure loosening electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 15%, and the degree of confidence arranged described superstructure loosening electric discharge alarm is 70%.
Correspondingly, the one side again of the embodiment of the present invention, a kind of partial discharge monitoring alarm Confidence Analysis system is also provided, it comprises: the monitoring sensor being arranged at electric power equipment on-site, the local discharge on-line monitoring device being arranged on transformer station and be arranged on the partial discharge monitoring main website of general headquarters of Utilities Electric Co., and described monitoring sensor, local discharge on-line monitoring device and partial discharge monitoring main website three are connected by data transmission channel; Comprise aforesaid partial discharge monitoring alarm Confidence Analysis device further, wherein, described Real-time Monitoring Data obtains unit and shelf depreciation warning information generation unit is arranged in local discharge on-line monitoring device, described degree of confidence setting unit and compare processing unit and be arranged in partial discharge monitoring main website.
Implement the present invention, there is following beneficial effect:
A kind of partial discharge monitoring alarm Confidence Analysis method, Apparatus and system are provided, by carrying out Confidence Analysis to partial discharge monitoring warning information, effectively can improve accuracy and the reliability of partial discharge monitoring alarm, reduce non-productive work amount, save cost of equipment maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of an embodiment of a kind of partial discharge monitoring alarm Confidence Analysis method provided by the invention;
Fig. 2 is the structural representation of an embodiment of a kind of partial discharge monitoring alarm Confidence Analysis device provided by the invention;
Fig. 3 is the structural representation of degree of confidence setting unit in Fig. 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the process flow diagram of an embodiment of a kind of partial discharge monitoring alarm Confidence Analysis method provided by the invention is shown.In this embodiment, this partial discharge monitoring alarm Confidence Analysis method comprises the steps:
Step S10, obtain apparatus local discharge real time on-line monitoring data, identical with general data acquisition system (DAS), the Partial Discharge Data of monitoring sensor collection constantly can be obtained by local discharge on-line monitoring device, thus realize carrying out on-line monitoring to power equipment shelf depreciation, obtain Real-time Monitoring Data;
Step S11 and step S12, generates partial discharge monitoring alarm.Real-time Monitoring Data and fault graph modal data are compared, generates shelf depreciation warning information, in shelf depreciation warning information, include shelf depreciation alarm type;
Particularly, the Partial Discharge Data collected and the fault graph modal data being preset at device compare by local discharge on-line monitoring device, then generate partial discharge monitoring alarm when Partial Discharge Data conforms to the spectrum data of certain class fault, and warning information is sent to partial discharge monitoring main station system.If Partial Discharge Data does not conform to all fault graph modal data, then do not generate partial discharge monitoring alarm.
Step S13, carries out shelf depreciation alarm degree of confidence and arranges.Add up according to each shelf depreciation alarm type and occurrence number, for each shelf depreciation warning information arranges corresponding degree of confidence;
This step can have several implementation:
In one example in which, this step S13 is specially:
Add up the number of times of shelf depreciation alarm type and the appearance comprised in all shelf depreciation warning information in each shelf depreciation warning information and a predetermined period before;
According to the judgment rule pre-set, for each shelf depreciation warning information arranges corresponding degree of confidence.
In another example, this step S13 is specially:
In a predetermined period, add up within this expectation cycle, the shelf depreciation alarm type comprised in all shelf depreciation warning information and the number of times of appearance;
According to the judgment rule pre-set, for each shelf depreciation alarm type arranges corresponding degree of confidence.
Particularly, arrange the principle that shelf depreciation alarm degree of confidence carries out analyzing and be, when there is partial discharges fault, equipment can continue the identical partial discharge phenomenon of generation within a period of time; And when there is instantaneous electromagnetic interference (EMI), partial discharge phenomenon generally can not be identical.Therefore, the equal number of the apparatus local discharge on-line monitoring warning information that can arrive according to set time window reception and varying number, determine the degree of confidence of alarm.Such as in one example in which, this predetermined period is for pre-setting (as 10 minutes), and shelf depreciation alarm type at least comprises the electric discharge alarm of tube wall burr and superstructure loosening electric discharge alarm; The judgment rule pre-set specifically comprises: if receive 3 identical tube wall burr electric discharge alarms in predetermined period, the degree of confidence then arranged tube wall burr electric discharge alarm is 90%, particularly, for in first example, the degree of confidence by current shelf depreciation warning information is set to 90%; For in second example, the degree of confidence by the shelf depreciation warning information containing such shelf depreciation alarm type (being tube wall burr electric discharge alarm) herein in this predetermined period is set to 90%, follow-up identical therewith, repeats no more; If receive 1 tube wall burr electric discharge alarm in predetermined period, then the degree of confidence arranged tube wall burr electric discharge alarm is 50%; If receive the electric discharge alarm of 1 tube wall burr and 1 superstructure loosening electric discharge alarm in predetermined period, then 25% is respectively to the electric discharge alarm of tube wall burr and the superstructure loosening degree of confidence that alarm arranges of discharging; If receive 1 tube wall burr electric discharge alarm and 2 superstructure loosening electric discharge alarms in predetermined period, then the degree of confidence arranged tube wall burr electric discharge alarm is 15%, and the degree of confidence arranged superstructure loosening electric discharge alarm is 70%.
Step S14-S16: judge whether to export shelf depreciation alarm.Partial discharge monitoring main station system is after the degree of confidence determining shelf depreciation alarm, and in step S14, the confidence threshold value that degree of confidence and that is corresponding to each shelf depreciation alarm type or each shelf depreciation warning information pre-sets compares.Wherein, in one embodiment, this threshold value is 60%.
If when degree of confidence is more than or equal to threshold value, then in step S15, export shelf depreciation warning information corresponding to shelf depreciation alarm type or current shelf depreciation warning information, alert device managerial personnel carry out follow-up work; Otherwise, in step s 16, abandon shelf depreciation warning information corresponding to shelf depreciation alarm type or current shelf depreciation alarm data.
Correspondingly, the embodiment of the present invention also provides a kind of partial discharge monitoring alarm Confidence Analysis device 1, and wherein, shelf depreciation is the omen that local overheating, electric elements and mechanical organ are aging.Partial discharge monitoring system is generally formed by being operated in the monitoring sensor of device context, the local discharge on-line monitoring device being operated in transformer station, the partial discharge monitoring main website being operated in corporate HQ and data transmission channel.
This partial discharge monitoring alarm Confidence Analysis device 1 comprises:
Real-time Monitoring Data obtains unit 10, for carrying out on-line monitoring to power equipment shelf depreciation, obtains Real-time Monitoring Data;
Shelf depreciation warning information generation unit 12, compares Real-time Monitoring Data and fault graph modal data, generates shelf depreciation warning information, includes shelf depreciation alarm type in shelf depreciation warning information;
Degree of confidence setting unit 14, for according to adding up each shelf depreciation alarm type and occurrence number, for each shelf depreciation warning information arranges corresponding degree of confidence;
Relatively processing unit 16, for the degree of confidence corresponding to each shelf depreciation warning information and a threshold value being compared, if when the degree of confidence of each shelf depreciation warning information is more than or equal to threshold value, then exports shelf depreciation warning information; Otherwise abandon shelf depreciation warning information, in one embodiment, this threshold value is 60%.When being understandable that, this threshold value can be revised according to the actual needs.
Particularly, degree of confidence setting unit 14 can be realized by two kinds of modes.
In one example in which, this degree of confidence setting unit 14 comprises:
Statistic unit 140, for adding up the number of times of shelf depreciation alarm type and the appearance comprised in all shelf depreciation warning information in each shelf depreciation warning information and a predetermined period before;
Setting unit 142, for according to the judgment rule pre-set, for each shelf depreciation warning information arranges corresponding degree of confidence.
In another example, this degree of confidence setting unit 14 comprises:
Statistic unit 140, for every a predetermined period, adds up within the expectation cycle, the shelf depreciation alarm type comprised in all shelf depreciation warning information and the number of times of appearance;
Setting unit 142, for according to the judgment rule pre-set, for each shelf depreciation alarm type arranges corresponding degree of confidence.
Wherein, in one embodiment, this predetermined period is for pre-setting (as 10 minutes), and shelf depreciation alarm type at least comprises the electric discharge alarm of tube wall burr and superstructure loosening electric discharge alarm; The judgment rule pre-set specifically comprises:
If receive 3 identical tube wall burr electric discharge alarms in predetermined period, then the degree of confidence arranged tube wall burr electric discharge alarm is 90%;
If receive 1 tube wall burr electric discharge alarm in predetermined period, then the degree of confidence arranged tube wall burr electric discharge alarm is 50%;
If receive the electric discharge alarm of 1 tube wall burr and 1 superstructure loosening electric discharge alarm in predetermined period, then 25% is respectively to the electric discharge alarm of tube wall burr and the superstructure loosening degree of confidence that alarm arranges of discharging;
If receive 1 tube wall burr electric discharge alarm and 2 superstructure loosening electric discharge alarms in predetermined period, then the degree of confidence arranged tube wall burr electric discharge alarm is 15%, and the degree of confidence arranged superstructure loosening electric discharge alarm is 70%.
Correspondingly, the one side again of the embodiment of the present invention, a kind of partial discharge monitoring alarm Confidence Analysis system is also provided, it comprises: the monitoring sensor being arranged at electric power equipment on-site, the local discharge on-line monitoring device being arranged on transformer station and be arranged on the partial discharge monitoring main website of general headquarters of Utilities Electric Co., and monitoring sensor, local discharge on-line monitoring device and partial discharge monitoring main website three are connected by data transmission channel; Wherein, comprise aforesaid partial discharge monitoring alarm Confidence Analysis device further, wherein, Real-time Monitoring Data obtains unit 10 and shelf depreciation warning information generation unit 12 and can be arranged in local discharge on-line monitoring device, degree of confidence setting unit 14 and compare processing unit 16 and can be arranged in partial discharge monitoring main website.
Implement the present invention, there is following beneficial effect:
A kind of partial discharge monitoring alarm Confidence Analysis method, Apparatus and system are provided, by carrying out Confidence Analysis to partial discharge monitoring warning information, effectively can improve accuracy and the reliability of partial discharge monitoring alarm, reduce non-productive work amount, save cost of equipment maintenance.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a partial discharge monitoring alarm Confidence Analysis method, is characterized in that, comprise step:
On-line monitoring is carried out to power equipment shelf depreciation, obtains Real-time Monitoring Data;
Described Real-time Monitoring Data and fault graph modal data are compared, generates shelf depreciation warning information, in described shelf depreciation warning information, include shelf depreciation alarm type;
Add up according to each shelf depreciation alarm type and occurrence number, for each shelf depreciation warning information arranges corresponding degree of confidence;
Degree of confidence corresponding to described each shelf depreciation warning information and a threshold value are compared, if when the degree of confidence of described each shelf depreciation warning information is more than or equal to described threshold value, then exports shelf depreciation warning information; Otherwise, abandon described shelf depreciation warning information.
2. partial discharge monitoring alarm Confidence Analysis method as claimed in claim 1, it is characterized in that, add up according to each shelf depreciation alarm type and occurrence number, the step arranging corresponding degree of confidence for each shelf depreciation warning information comprises further:
Add up the number of times of shelf depreciation alarm type and the appearance comprised in all shelf depreciation warning information in each shelf depreciation warning information and a predetermined period before;
According to the judgment rule pre-set, for each shelf depreciation warning information described arranges corresponding degree of confidence.
3. partial discharge monitoring alarm Confidence Analysis method as claimed in claim 1, it is characterized in that, add up according to each shelf depreciation alarm type and occurrence number, the step arranging corresponding degree of confidence for each shelf depreciation warning information comprises further:
In a predetermined period, add up in described predetermined period, the shelf depreciation alarm type comprised in all shelf depreciation warning information and the number of times of appearance;
According to the judgment rule pre-set, for each the shelf depreciation alarm type in described predetermined period arranges corresponding degree of confidence.
4. partial discharge monitoring alarm Confidence Analysis method as claimed in claim 2 or claim 3, is characterized in that, described predetermined period is for pre-setting, and described shelf depreciation alarm type at least comprises the electric discharge alarm of tube wall burr and superstructure loosening electric discharge alarm; The described judgment rule pre-set specifically comprises:
If receive 3 identical tube wall burr electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 90%;
If receive 1 tube wall burr electric discharge alarm in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 50%;
If receive the electric discharge alarm of 1 tube wall burr and 1 superstructure loosening electric discharge alarm in predetermined period, then 25% is respectively to described tube wall burr electric discharge alarm and the described superstructure loosening degree of confidence that alarm arranges of discharging;
If receive 1 tube wall burr electric discharge alarm and 2 superstructure loosening electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 15%, and the degree of confidence arranged described superstructure loosening electric discharge alarm is 70%.
5. the partial discharge monitoring alarm Confidence Analysis method as described in any one of claims 1 to 3, it is characterized in that, described threshold value is for pre-setting.
6. a partial discharge monitoring alarm Confidence Analysis device, is characterized in that, comprising:
Real-time Monitoring Data obtains unit, for carrying out on-line monitoring to power equipment shelf depreciation, obtains Real-time Monitoring Data;
Shelf depreciation warning information generation unit, compares described Real-time Monitoring Data and fault graph modal data, generates shelf depreciation warning information, includes shelf depreciation alarm type in described shelf depreciation warning information;
Degree of confidence setting unit, for according to adding up each shelf depreciation alarm type and occurrence number, for each shelf depreciation warning information arranges corresponding degree of confidence;
Relatively processing unit, for the degree of confidence corresponding to described each shelf depreciation warning information and a threshold value being compared, if when the degree of confidence of described each shelf depreciation warning information is more than or equal to described threshold value, then exports shelf depreciation warning information; Otherwise, abandon described shelf depreciation warning information.
7. partial discharge monitoring alarm Confidence Analysis device as claimed in claim 6, it is characterized in that, described degree of confidence setting unit comprises:
Statistic unit, for adding up the number of times of shelf depreciation alarm type and the appearance comprised in all shelf depreciation warning information in each shelf depreciation warning information and a predetermined period before;
Setting unit, for according to the judgment rule pre-set, for each shelf depreciation warning information described arranges corresponding degree of confidence.
8. partial discharge monitoring alarm Confidence Analysis device as claimed in claim 6, it is characterized in that, described degree of confidence setting unit comprises:
Statistic unit, for every a predetermined period, adds up within the described expectation cycle, the shelf depreciation alarm type comprised in all shelf depreciation warning information and the number of times of appearance;
Setting unit, for the judgment rule pre-set described in basis, for each shelf depreciation alarm type arranges corresponding degree of confidence.
9. partial discharge monitoring alarm Confidence Analysis device as claimed in claim 7 or 8, is characterized in that,
Described predetermined period is for pre-setting, and described shelf depreciation alarm type at least comprises the electric discharge alarm of tube wall burr and superstructure loosening electric discharge alarm; The described judgment rule pre-set specifically comprises:
If receive 3 identical tube wall burr electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 90%;
If receive 1 tube wall burr electric discharge alarm in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 50%;
If receive the electric discharge alarm of 1 tube wall burr and 1 superstructure loosening electric discharge alarm in predetermined period, then 25% is respectively to described tube wall burr electric discharge alarm and the described superstructure loosening degree of confidence that alarm arranges of discharging;
If receive 1 tube wall burr electric discharge alarm and 2 superstructure loosening electric discharge alarms in predetermined period, then the degree of confidence arranged described tube wall burr electric discharge alarm is 15%, and the degree of confidence arranged described superstructure loosening electric discharge alarm is 70%.
10. a partial discharge monitoring alarm Confidence Analysis system, it comprises: the monitoring sensor being arranged at electric power equipment on-site, the local discharge on-line monitoring device being arranged on transformer station and be arranged on the partial discharge monitoring main website of general headquarters of Utilities Electric Co., and described monitoring sensor, local discharge on-line monitoring device and partial discharge monitoring main website three are connected by data transmission channel; It is characterized in that, comprise the partial discharge monitoring alarm Confidence Analysis device as described in any one of claim 6 to 9 further, wherein, described Real-time Monitoring Data obtains unit and shelf depreciation warning information generation unit is arranged in local discharge on-line monitoring device, described degree of confidence setting unit and compare processing unit and be arranged in partial discharge monitoring main website.
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| CN110927537A (en) * | 2019-11-27 | 2020-03-27 | 国网江苏省电力有限公司电力科学研究院 | Partial discharge monitoring device and method based on Internet of things edge calculation |
| CN110927537B (en) * | 2019-11-27 | 2022-04-05 | 国网江苏省电力有限公司电力科学研究院 | Partial discharge monitoring device and method based on Internet of things edge calculation |
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Application publication date: 20150225 |