CN203405539U - Insulation characteristic parameter acquisition device and online insulation monitoring system - Google Patents
Insulation characteristic parameter acquisition device and online insulation monitoring system Download PDFInfo
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- CN203405539U CN203405539U CN201320507653.XU CN201320507653U CN203405539U CN 203405539 U CN203405539 U CN 203405539U CN 201320507653 U CN201320507653 U CN 201320507653U CN 203405539 U CN203405539 U CN 203405539U
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Abstract
Provided are an insulation characteristic parameter acquisition device and an online insulation monitoring system. A data synchronization processing unit is connected with monitored equipment respectively through a current data acquisition unit and a voltage data acquisition unit; a control processing unit is connected with the data synchronization processing unit; the control processing unit is connected with an environment sensor through an environment parameter processing unit; and the control processing unit corrects an insulation characteristic parameter acquired by an online insulation sampling unit according to an environment characteristic value acquired by an environment sampling unit to obtain an insulation characteristic parameter without environmental impact. The insulation characteristic parameter acquisition device and the online insulation monitoring system have functions of online insulation monitoring and environment monitoring, can correct monitored online insulation monitoring data according to environmental parameters monitored in real time, provide a solution for the problem that monitored data is influenced by environmental factors and improve the accuracy of equipment insulation state assessment.
Description
Technical field
The utility model relates to electrical equipment online supervision field, particularly relates to a kind of dielectric features parameter acquisition device and insulated on-line monitoring system.
Background technology
The safe operation of high voltage electric equipment is the basis of network system safe operation, if the inner insulation defect that exists bad because manufacturing, aging and outside destroy etc. to cause of high voltage electric equipment, the insulation fault of can make a difference equipment and electric power netting safe running.China carries out regular power failure test, inspection and maintenance according to the regulation of electrical equipment preventive test rules to electrical equipment.Because this maintenance and test are regularly to carry out, be difficult to reflect in time the potential faults of device interior.And trial voltage often will be lower than working voltage, therefore, its equivalence is relatively poor, sensitive not to some defect reflection.Along with electric system is towards high voltage, jumbo future development, prophylactic repair is more and more not suitable with the demand that China builds strong intelligent grid.
The on-line monitoring system of general electrical equipment can meet the requirement that realizes repair based on condition of component and intelligent grid.But the extraneous factors such as environment temperature, humidity, air pressure, insulating surface filth may affect the precision of On-line Monitoring for Capacitive Equipment Isolation data, thereby affect the accuracy of follow-up diagnosis.Impact due to ambient temperature and humidity, in one day, dielectric loss on-line monitoring data that system obtains have periodic wave dynamic characteristic, in 1 year, with seasonal variations, also there is cyclic fluctuation, and environmental factor not only affects apparatus insulated dielectric loss characteristic, also affect the monitoring accuracy of sensor, and consequent measuring error is quite large, if therefore do not get rid of the impact of environmental factor, to directly affect the validity of online monitoring data, and then affect the accuracy of apparatus insulated state estimation.
Utility model content
Based on this, be necessary the problem for such environmental effects online monitoring data validity, a kind of dielectric features parameter acquisition device and insulated on-line monitoring system of removing such environmental effects is provided.
A kind of dielectric features parameter acquisition device, comprise insulation on-line sampling unit, environment sampling unit and controlled processing unit, described insulation on-line sampling unit comprises current data collecting unit, voltage data collecting unit and data synchronization processing unit, and described environment sampling unit comprises environmental sensor and environmental parameter processing unit;
Described data synchronization processing unit is connected with described monitored equipment with described voltage data collecting unit by described current data collecting unit respectively, described controlled processing unit is connected with described data synchronization processing unit, and described controlled processing unit is connected with described environmental sensor by described environmental parameter processing unit;
The dielectric features parameter that the described controlled processing unit environmental characteristic value that collection is obtained according to described environment sampling unit is obtained described insulation on-line sampling unit collection is revised, and obtains removing the dielectric features parameter of environmental impact.
, comprise described dielectric features parameter acquisition device and state of insulation confirmation device; Described state of insulation is confirmed the state of insulation of the detected equipment of dielectric features parameter confirmation of the removal environmental impact that device obtains according to described dielectric features parameter acquisition device.
Above-mentioned dielectric features parameter acquisition device and insulated on-line monitoring system, described data synchronization processing unit is connected with described monitored equipment with described voltage data collecting unit by described current data collecting unit respectively, described controlled processing unit is connected with described data synchronization processing unit, and described controlled processing unit is connected with described environmental sensor by described environmental parameter processing unit; The dielectric features parameter that the described controlled processing unit environmental characteristic value that collection is obtained according to described environment sampling unit is obtained described insulation on-line sampling unit collection is revised, and obtains removing the dielectric features parameter of environmental impact.Above-mentioned dielectric features parameter acquisition device and insulated on-line monitoring system have function of insulation online monitoring and environment monitoring function, can to the insulated on-line monitoring data that monitor, revise according to the environment parameter of Real-Time Monitoring, solve Monitoring Data and be subject to the puzzlement of such environmental effects, improved the accuracy of apparatus insulated state estimation.
Accompanying drawing explanation
Fig. 1 is the structure drawing of device of one of them embodiment of dielectric features parameter acquisition device;
Fig. 2 is the wherein structure drawing of device of another embodiment of dielectric features parameter acquisition device;
Fig. 3 is the device connection layout of one of them embodiment of insulated on-line monitoring system.
Embodiment
As shown in Figure 1, a kind of dielectric features parameter acquisition device, comprise insulation on-line sampling unit 100, environment sampling unit 200 and controlled processing unit 300, described insulation on-line sampling unit 100 comprises current data collecting unit 110, voltage data collecting unit 120 and data synchronization processing unit 130, and described environment sampling unit 200 comprises environmental sensor 210 and environmental parameter processing unit 220;
Described data synchronization processing unit 130 is connected with described monitored equipment with described voltage data collecting unit 120 by described current data collecting unit 110 respectively, described controlled processing unit 300 is connected with described data synchronization processing unit 130, and described controlled processing unit 300 is connected with described environmental sensor 210 by described environmental parameter processing unit 220;
Described controlled processing unit 300 gathers the environmental characteristic value dielectric features parameter that 100 collections are obtained to described insulation on-line sampling unit obtaining and revises according to described environment sampling unit 200, obtain removing the dielectric features parameter of environmental impact.
In the present embodiment, described insulation online acquisition unit can be by gathering the end shield electric current of monitored equipment at transformer or other equipment with the end shield current adapter of installing on bushing, can also gather by voltage transformer (VT) the busbar voltage of the corresponding bus of monitored equipment, and the dielectric loss of calculating accordingly sleeve pipe is as its dielectric features parameter.Environment sampling module can be connected by described environmental parameter processing unit 220 environment parameters such as gathering monitored equipment environment temperature of living in, humidity, air pressure, surface filth with described environmental sensor 210.Described controlled processing unit 300 can be processed environment parameter by fuzzy neural network, obtains an environment self-adaption factor, then dielectric features parameter is revised, and finally obtains removing the dielectric features parameter of environmental impact.Described controlled processing unit 300 can be used Elman neural network to process, this Elman neural network by input layer, middle layer, accept layer and output layer form, wherein the unit of input layer plays signal transmitting effect, output layer unit plays linear weighted function effect, hidden layer unit adopts linearity or nonlinear function as transport function, accept the output valve that layer is used for remembering hidden layer unit previous moment, can play the effect of a step time delay operator.This Elman neural network has the good network stabilization of ability that adapts to time-varying characteristics.The quantized value scope of in the present embodiment can set environment correction factor input vector getting temperature, humidity and filthy degree is [0 1].Temperature when insulated on-line monitoring system is worked, humidity and filthy degree, carry out obtaining the proper vector that Elman neural network needs after pre-service, then be input in the Elman network having trained and obtain the environmental correction factor, by 300 pairs of described insulation on-line sampling unit of described controlled processing unit 100, gathering the dielectric features parameter obtaining again revises, obtain removing the dielectric features parameter of environmental impact, solved the puzzlement that Monitoring Data is subject to such environmental effects.
Above-mentioned dielectric features parameter acquisition device, described data synchronization processing unit is connected with described monitored equipment with described voltage data collecting unit by described current data collecting unit respectively, described controlled processing unit is connected with described data synchronization processing unit, and described controlled processing unit is connected with described environmental sensor by described environmental parameter processing unit; The dielectric features parameter that the described controlled processing unit environmental characteristic value that collection is obtained according to described environment sampling unit is obtained described insulation on-line sampling unit collection is revised, and obtains removing the dielectric features parameter of environmental impact.Above-mentioned dielectric features parameter acquisition device and insulated on-line monitoring system have function of insulation online monitoring and environment monitoring function, can to the insulated on-line monitoring data that monitor, revise according to the environment parameter of Real-Time Monitoring, solve Monitoring Data and be subject to the puzzlement of such environmental effects, improved the accuracy of apparatus insulated state estimation.
As shown in Figure 2, therein in a kind of embodiment, described dielectric features parameter acquisition device, described current data collecting unit 110 comprises electric current punching sensor and current acquisition unit; Described current acquisition unit is connected with described monitored equipment by described electric current punching sensor, and described data synchronization processing unit 130 is connected with described current acquisition unit.Because leakage current is conventionally milliampere, and necessary by a circle punching structure, with routine transformer, under so little ampere turns, cannot measure at all, in the present embodiment, can adopt the ac leakage current of the insulated on-line monitoring system that aims at various power equipments to sample and the electric current punching sensor of design.The control command that described current acquisition unit can receive 130 transmissions of described data synchronization processing unit gathers the data that described electric current punching sensor transforms.
As shown in Figure 2, therein in a kind of embodiment, described dielectric features parameter acquisition device, described voltage data collecting unit 120 comprises voltage sensor and voltage acquisition unit; Described voltage acquisition unit is connected with described monitored equipment by described voltage sensor, and described data synchronization processing unit 130 is connected with described voltage acquisition unit.In the present embodiment, the control command that described voltage acquisition unit can receive 130 transmissions of described data synchronization processing unit gathers the data that described voltage sensor transforms, and described data can be the data messages such as voltage magnitude, phase place.
Therein in a kind of embodiment, described dielectric features parameter acquisition device, described environmental sensor 210 comprises miniature weather station and pollution sensor.In the present embodiment, can gather the environment parameters such as monitored equipment environment temperature of living in, humidity, air pressure, surface filth by miniature weather station and pollution sensor, being convenient to described controlled processing unit 300 processes environment parameter by fuzzy neural network, obtain an environment self-adaption factor, then dielectric features parameter is revised, finally obtained removing the dielectric features parameter of environmental impact.
As shown in Figure 3, therein in a kind of embodiment, a kind of insulated on-line monitoring system, comprises that dielectric features parameter acquisition device and the state of insulation described in the claims 1-4 any one confirmed device 400; Described state of insulation is confirmed the state of insulation of the detected equipment of dielectric features parameter confirmation of the removal environmental impact that device obtains according to described dielectric features parameter acquisition device.
Above-mentioned insulated on-line monitoring system, described data synchronization processing unit is connected with described monitored equipment with described voltage data collecting unit by described current data collecting unit respectively, described controlled processing unit is connected with described data synchronization processing unit, and described controlled processing unit is connected with described environmental sensor by described environmental parameter processing unit; The dielectric features parameter that the described controlled processing unit environmental characteristic value that collection is obtained according to described environment sampling unit is obtained described insulation on-line sampling unit collection is revised, and obtains removing the dielectric features parameter of environmental impact.Above-mentioned dielectric features parameter acquisition device and insulated on-line monitoring system have function of insulation online monitoring and environment monitoring function, can to the insulated on-line monitoring data that monitor, revise according to the environment parameter of Real-Time Monitoring, solve Monitoring Data and be subject to the puzzlement of such environmental effects, improved the accuracy of apparatus insulated state estimation.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (5)
1. a dielectric features parameter acquisition device, it is characterized in that, comprise insulation on-line sampling unit, environment sampling unit and controlled processing unit, described insulation on-line sampling unit comprises current data collecting unit, voltage data collecting unit and data synchronization processing unit, and described environment sampling unit comprises environmental sensor and environmental parameter processing unit;
Described data synchronization processing unit is connected with monitored equipment with described voltage data collecting unit by described current data collecting unit respectively, described controlled processing unit is connected with described data synchronization processing unit, and described controlled processing unit is connected with described environmental sensor by described environmental parameter processing unit;
The dielectric features parameter that the described controlled processing unit environmental characteristic value that collection is obtained according to described environment sampling unit is obtained described insulation on-line sampling unit collection is revised, and obtains removing the dielectric features parameter of environmental impact.
2. dielectric features parameter acquisition device according to claim 1, is characterized in that, described current data collecting unit comprises electric current punching sensor and current acquisition unit; Described current acquisition unit is connected with described monitored equipment by described electric current punching sensor, and described data synchronization processing unit is connected with described current acquisition unit.
3. dielectric features parameter acquisition device according to claim 1 and 2, is characterized in that, described voltage data collecting unit comprises voltage sensor and voltage acquisition unit; Described voltage acquisition unit is connected with described monitored equipment by described voltage sensor, and described data synchronization processing unit is connected with described voltage acquisition unit.
4. dielectric features parameter acquisition device according to claim 1 and 2, is characterized in that, described environmental sensor comprises miniature weather station and pollution sensor.
5. an insulated on-line monitoring system, is characterized in that, comprises that dielectric features parameter acquisition device and the state of insulation described in the claims 1-4 any one confirmed device; Described state of insulation is confirmed the state of insulation of the detected equipment of dielectric features parameter confirmation of the removal environmental impact that device obtains according to described dielectric features parameter acquisition device.
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| CN201320507653.XU CN203405539U (en) | 2013-08-19 | 2013-08-19 | Insulation characteristic parameter acquisition device and online insulation monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504348A (en) * | 2020-12-11 | 2021-03-16 | 厦门汇利伟业科技有限公司 | Object state display method and system fusing environmental factors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504348A (en) * | 2020-12-11 | 2021-03-16 | 厦门汇利伟业科技有限公司 | Object state display method and system fusing environmental factors |
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