A kind of transformer substation monitoring system
Technical field
The present invention relates to a kind of pilot system of foundation structure, more particularly, to a kind of monitoring system of transformer substation foundation.
Background technology
Transformer station is electric power energy transmission and the important pivot of conversion, as the part of whole power transmission and transformation system, is held
Carry on a shoulder pole the important function formed a connecting link.The usual addressing of past transformer station is in the higher area of physical features, to reduce amount of fill.With warp
The development of Ji society.Land resource is increasingly reduced, and transformer station also has to build the area that should not be built a station in.
Newly-built transformer station for being in back filled region, after ground is after the time test in rainy season, dry season, can all occur not
With the sedimentation of degree.The amplitude of sedimentation is according to the characteristic of soil, the quality of design and construction, the size of carrying and natural climate change
Situation and change.If thinking little of these problems, toppling for electrical equipment may be caused, caused a serious accident, to operation maintenance
Great inconvenience is brought, or even influences normal operation.
Therefore, strengthen the monitoring of transformer station's ground, find settlement of foundation hidden danger in time, reduce and become caused by settlement of foundation
Electric facility damage, it is ensured that power system security stable operation, it has also become it is current in the urgent need to address the problem of.
In the prior art, the monitoring method for transformer substation foundation is to use levelling method, in transformer station's structure
The main monitoring electricity installation settlement observation staff of thing is built, by survey crew's periodical inspection, uses optical level or electronic leveler
Instrument and levelling rod complete each settlement point level high measurement.Traditional measurement of the level advantage is that precision is high, highly reliable;Cost is relative
It is relatively low.But monitoring electric substation sedimentation is a long-term process, it is necessary to which substantial amounts of data are as support, if only dependence
Measuring instrument gathered data manually is used, is not only taken time and effort, and easily receive environmental influence.
201220167119.4 with 201410192810.1 patent individually disclose that transformer substation foundation monitors automatically be
System, but for ground monitoring point simultaneously there is multiple monitoring parameters, if for these monitoring parameters simultaneously supervise
Survey, then monitoring parameter is excessive, and also heavier for system burden.
The content of the invention
The invention provides a kind of transformer substation monitoring system and method, the drawbacks described above of prior art can be overcome.
As one aspect of the present invention, there is provided a kind of transformer substation foundation monitoring system, including:Multiple monitoring points, it is described
Multiple monitoring points set sensing device respectively;Multiple sensing devices, set corresponding to the multiple monitoring point, it is each for monitoring
The underlying parameter of monitoring point, the sensing device set wireless communication interface, can carry out the underlying parameter of each monitoring point
Wireless transceiver;Data monitoring service device, the data monitoring service device are carried out according to the underlying parameter of each monitoring point of reception
Data analysis, it is controlled according to monitoring parameters of the analysis result for each sensing device.
Preferably, Zigbee, GPRS or CDMA are passed through between the sensing device and the data monitoring service device
Carry out data transmission Deng wireless network.
Preferably, the monitoring parameters of each sensing device include monitoring cycle and monitoring object.
Preferably, the sensing device includes settlement sensor, soil pressure sensor, support column load-bearing monitor sensor with
And temperature sensor.
Preferably, the soil pressure sensor, the startup of support column load-bearing monitor sensor and temperature sensor is by institute
State the judgement for the settlement values that data monitoring service device monitors according to the settlement sensor of reception and triggered.
Preferably, the settlement sensor is monitored using the first monitoring cycle, and the settlement values that will be monitored in real time
The data monitoring service device is sent to by wireless network;Base of the data monitoring service device to each monitoring point of reception
Plinth parameter carries out data analysis, the settlement sensor according to the result of data analysis for the abnormal specific monitoring point of settlement values
It is monitored using the second round different from the period 1, the second round is less than the period 1;The data monitoring clothes
Business device also triggers the soil pressure sensor, support column load-bearing monitor sensor and temperature sensor, passes the soil pressure
Sensor, support column load-bearing monitor sensor and temperature sensor are monitored with the respective cycle respectively.
Preferably, the temperature sensor of the abnormal specific monitoring point of the settlement values is monitored with second round, institute
The monitoring cycle for stating soil pressure sensor and support column load-bearing monitor sensor is N times of the second round, and N is more than 1
Integer.
Preferably, after the data monitoring service device receives the settlement values of all monitoring points, all monitoring points are calculated
Settlement values arithmetic mean of instantaneous value and mean square deviation, each monitoring point settlement values and institute are gone out according to the algorithm mean value calculation
The shift value of arithmetic mean of instantaneous value is stated, when the absolute value of the monitoring point shift value is more than M times of the mean square deviation, is judged
The settlement values of the monitoring point are abnormal.
Preferably, after the data monitoring service device data monitoring service device receives the settlement values of all monitoring points,
This settlement values of all monitoring points and the difference S of last settlement values are calculated, and the arithmetic for calculating the difference is put down
Average S1 and mean square deviation △ S, so as to calculate the difference of each monitoring point skew S-S1, when S-S1 absolute value is more than △ S
M times when, M is integer more than 2, judges that the settlement values of the monitoring point are abnormal.
Preferably, after the data monitoring service device data monitoring service device receives the settlement values of all monitoring points,
The difference S, the K for calculating the settlement values that this settlement values of all monitoring points monitor with kth before this monitoring be
Integer more than 2, and the arithmetic mean of instantaneous value S1 and mean square deviation △ S of the difference are calculated, so as to calculate each monitoring point
Difference offsets S-S1, when S-S1 absolute value is more than M times of △ S, judges that the settlement values of the monitoring point are abnormal.
Preferably, the settlement sensor is not provided with datum mark, when installing settlement sensor, measured value will be set to first
A reference value, it is set to zero;The numerical value of later single measurement is with the difference of a reference value as settlement values.
Brief description of the drawings
Fig. 1 is the schematic diagram of transformer substation monitoring system of the present invention.
Embodiment
In order to illustrate more clearly of technical scheme, embodiment will be used simply to be situated between the present invention below
Continue, it should be apparent that, in describing below is only one embodiment of the present of invention, is come for those of ordinary skill in the art
Say, without having to pay creative labor, other technical schemes can also be obtained according to these embodiments, fallen within
Disclosure of the invention scope.
The transformer substation foundation monitoring system of the present invention, as shown in figure 1, including multiple monitoring points, wireless network and data
Monitoring server.Wherein, each multiple monitoring points set sensing device respectively, for monitoring the underlying parameter of each monitoring point.
Sensing device includes settlement sensor, soil pressure sensor, support column load-bearing monitor sensor and temperature sensor.Wherein,
Settlement sensor is used for the settling data for monitoring monitoring point, and observation stake can be set in monitoring point, is monitored using displacement transducer
The observation stake, so as to obtain the settling data of the datum mark.Soil pressure sensor, support column load-bearing monitor sensor and temperature
Sensor can use pressure sensor well known in the prior art and temperature sensor.
Wireless communication interface is provided with sensing device, the underlying parameter of each monitoring point can be passed by wireless network
Data monitoring service device is sent to, by the operational order that data monitoring service device can be also received by wireless network.It can make
Carried out data transmission with wireless networks such as known cordless communication network such as Zigbee, GPRS or CDMA.
Data monitoring service device carries out data analysis according to the underlying parameter of each monitoring point of reception, according to analysis result
It is controlled for the monitoring parameters of each sensing device.In Basic monitoring, settling data is to influence substation equipment most
Whole factor, and remaining monitoring parameters is to be used for auxiliary monitoring.Therefore, in the monitoring system of the present invention, sensed using sedimentation
Condition of the abnormal data of device as triggering other sensors monitoring.Data monitoring service device controls the sedimentation of each monitoring point to pass
Sensor is monitored using the first monitoring cycle, and the settlement values monitored are sent into data monitoring by wireless network in real time
Server.
Data monitoring service device carries out data analysis to the underlying parameter of each monitoring point of reception, when monitoring single prison
During the settling data exception of measuring point, used for the settlement sensor of the abnormal specific monitoring point of settlement values different from first week
The second round of phase is monitored, and the second round is less than the period 1.Meanwhile data monitoring service device also triggers the monitoring point
Soil pressure sensor, support column load-bearing monitor sensor and temperature sensor make the soil pressure sensor, support column by
Power monitors sensor and temperature sensor is monitored with the respective cycle respectively.Due to soil pressure and support column stress
Amplitude of variation is relatively small, can be by the temperature sensor of the abnormal specific monitoring point of settlement values and second round identical week
Phase is monitored, and soil pressure sensor and support column load-bearing monitor sensor is monitored with the period 3, the period 3
For N times of the second round, N is the integer more than 1.
The settlement of foundation of transformer station is divided into uniform settlement and differential settlement.In general, ground produces uniform settlement, right
Electrical equipment will not cause additional internal stress in itself, will not cause big harm, but should then cause foot to uneven settlement of foundation
It is enough to pay attention to.When differential settlement, which exceedes, bears limit, the cracking of electrical equipment will be produced, tilts or even collapses, jeopardizes peace
Entirely.Therefore, the settlement sensor of the application is not provided with datum mark, when installing settlement sensor, will be set to base by measured value first
Quasi- value, is set to zero;The numerical value of later single measurement is with the difference of a reference value as settlement values;It is each by analyzing
The bulk settling data of monitoring point are analyzed, and determine the abnormal ground of differential settlement.
After data monitoring service device receives the settlement values of all monitoring points, the settlement values of all monitoring points are calculated
Arithmetic mean of instantaneous value and mean square deviation, each monitoring point settlement values and the arithmetic mean of instantaneous value are gone out according to the algorithm mean value calculation
Shift value, when the absolute value of the monitoring point shift value is more than M times of the mean square deviation, M is the integer more than 2,
Judge that the settlement values of the monitoring point are abnormal.
Sedimentation value it is excessive can to react monitoring point sedimentation, it is possible to create risk when more than threshold value.But monitoring
When exceeding threshold value to sedimentation value, harm may have been produced.Preferably, data monitoring service device receives the heavy of all monitoring points
After dropping numerical value, this settlement values of all monitoring points and the difference S of last settlement values are calculated, and calculate the difference
Arithmetic mean of instantaneous value S1 and mean square deviation △ S, so as to calculate the difference of each monitoring point skew S-S1, when S-S1 absolute value
During more than M times of △ S, judge that the settlement values of the monitoring point are abnormal.It is further preferred that the data monitoring service device receives
To after the settlement values of all monitoring points, this settlement values and kth before this monitoring for calculating all monitoring points monitor
Settlement values difference S, the K is the integer more than 2, and calculates the arithmetic mean of instantaneous value S1 and mean square deviation △ of the difference
S, so as to calculate the difference of each monitoring point skew S-S1, when S-S1 absolute value is more than M times of △ S, judge the prison
The settlement values of measuring point are abnormal.
Embodiment described above only expresses the embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.