CN116702679B

CN116702679B - Control loop simulation system and method for isolating switch operating mechanism

Info

Publication number: CN116702679B
Application number: CN202310964362.1A
Authority: CN
Inventors: 姜天文
Original assignee: Shenzhen Xinchengsida Education Technology Co ltd
Current assignee: Shenzhen Xinchengsida Education Technology Co ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-02-13
Anticipated expiration: 2043-08-02
Also published as: CN116702679A

Abstract

The invention discloses a control loop simulation system and a method for an isolating switch operating mechanism, wherein the system comprises the following components: the isolating switch characteristic parameter acquisition module is used for testing the isolating switch characteristic through the isolating switch operating mechanism to obtain isolating switch characteristic parameters; the data preprocessing module is used for preprocessing the characteristic parameters of the isolating switch; the evaluation value calculation module is used for comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in the standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; and the classification storage module is used for classifying the obtained evaluation values and storing the isolation switch characteristic parameters corresponding to the evaluation values in a classification manner according to classification results. The characteristic parameters of the isolating switch can be compared with standard data in a standard characteristic model to obtain an evaluation value, fault judgment is carried out on the evaluation value, and fault classification judgment is carried out according to specific calculated values more scientifically and reasonably.

Description

Control loop simulation system and method for isolating switch operating mechanism

Technical Field

The invention relates to the technical field of data management, in particular to a control loop simulation system and method of an isolating switch operating mechanism.

Background

With the rapid development of modern electric power technology and the increasing demand for electricity, the use of gas-insulated metal-enclosed switchgear (Gas Insulated Switchgear, abbreviated as GIS) is gradually common, but with the increase of the operation years of the GIS, the failure rate is higher and higher, and some defects of the GIS in terms of materials, processes, designs, installation, maintenance and the like are gradually exposed. At present, means for monitoring the GIS isolating switch on line or off line mainly comprise that SF6 gas density relay is used for monitoring SF6 gas pressure in preventive tests, infrared imaging temperature measurement is carried out, mechanism signal acquisition is used for judging position indication and isolating switch state, insulation performance and conductive loop contact condition are detected by insulation voltage resistance and loop resistance tests, the insulation voltage resistance tests and the loop resistance tests can only be carried out in an off-line mode, particularly the monitoring means can not fully embody comprehensive and objective state of the interior of the isolating switch, and when opening and closing of the interior of the isolating switch are not in place or poor contact is caused, the monitoring means can not effectively monitor the internal state.

Therefore, by testing the switching characteristics of the isolating switch by using the operating mechanism, no scientific management mode exists for effectively monitoring and managing the data obtained by the test.

Disclosure of Invention

The invention provides a control loop simulation system and a control loop simulation method for an isolating switch operating mechanism, which are used for solving the problems in the prior art.

The invention provides a control loop simulation system of an isolating switch operating mechanism, which comprises:

the isolating switch characteristic parameter acquisition module is used for testing the isolating switch characteristic through the isolating switch operating mechanism to obtain isolating switch characteristic parameters;

the data preprocessing module is used for preprocessing the characteristic parameters of the isolating switch, and the preprocessing comprises the following steps: cleaning and noise reduction treatment;

the evaluation value calculation module is used for comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in the standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; the classification storage module is used for classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value.

Preferably, the isolation switch characteristic parameter acquisition module includes:

the operation unit is used for carrying out opening operation and closing operation of the isolating switch based on the isolating switch operation mechanism;

the measuring unit is used for measuring the switching-on and switching-off stroke, the switching-on and switching-off speed, the switching-on and switching-off time, the control loop current and the characteristic curve of the isolating switch in the switching-on and switching-off operation process;

and the parameter forming unit is used for forming the measured data into the isolating switch characteristic parameters.

Preferably, the evaluation value calculation module includes:

the functional label marking unit is used for marking functional labels on the isolating switch according to different functional positions of the isolating switch;

the tag classification unit is used for classifying the isolation switch characteristic parameters obtained by the isolation switch characteristic test of the isolation switches with different function tags according to the function tags;

the standard characteristic model labeling unit is used for labeling corresponding functional labels for each standard characteristic model with different standard characteristic models corresponding to the isolating switches at different functional positions;

the model matching unit is used for matching a standard characteristic model corresponding to the function tag according to the category of the function tag to which the characteristic parameter of the isolating switch belongs;

And the calculation obtaining unit is used for inputting the characteristic parameters of the isolating switch into the matched standard characteristic model and outputting an evaluation value of the characteristic parameters of the isolating switch.

Preferably, the system further comprises: the fault prediction module is used for predicting the faults again according to the isolation switch characteristic parameters corresponding to the evaluation values of the high fault class, the low fault class and the no fault class, and outputting a re-prediction result;

and predicting the characteristic parameters of the isolating switch corresponding to the evaluation values of the high fault class, the low fault class and the no fault class according to the prediction modules with different weight values.

Preferably, the prediction module includes:

acquiring early data in a previous specific time interval of the isolating switch corresponding to the evaluation value of the high fault class; a first predicted evaluation value is predicted by a random forest algorithm based on the previous data,

obtaining historical characteristic data of the isolating switch corresponding to the evaluation value of the low fault class; predicting a second predicted evaluation value through a random forest algorithm based on the historical characteristic data;

aiming at the isolating switch corresponding to the evaluation value of the fault-free class, carrying out the isolating switch characteristic test again by adopting an isolating switch operating mechanism to obtain second characteristic data, and calculating a retest evaluation value corresponding to the second characteristic data; and performing secondary classification according to the first predicted evaluation value, the second predicted evaluation value and the retest evaluation value, and performing classification storage on the isolating switch characteristic parameters corresponding to the corresponding evaluation values according to classification results.

Preferably, the system further comprises a fault analysis module, which is used for determining fault reasons for the isolating switch characteristic parameters corresponding to the fault class, the high fault class and the low fault class, and calibrating the isolating switch characteristic parameters on corresponding fault equipment.

Preferably, the fault analysis module includes:

the random data set forming unit is used for randomly combining the data included in the characteristic parameters of the isolating switch to form a random data set; each random data set comprises at least two data;

an initial fault judgment result unit, configured to determine at least one initial fault judgment result for each random data set;

the second fault judging result unit is used for searching one data with the largest deviation from the standard data in each random data set, determining the fault reason with the largest probability corresponding to the data and setting the fault reason as a second fault judging result;

and the final fault cause determining unit is used for determining the final fault cause corresponding to the random data set according to the initial fault judging result and the second fault judging result.

Preferably, the initial failure determination result unit includes:

a setting subunit, configured to set a first weight value for data in each random data set, where the first weight values of the same data in different random data sets are different, and the first weight values of different data in the same random data set are the same or different;

The difference value calculating subunit is used for calculating the difference value between each data in the random data set and the standard data, multiplying each difference value by a first weight value corresponding to the data to form a plurality of product results, and adding all the product results in the random data set to form a result value;

and the calibration subunit is used for dividing each product result by the result value to form a participation proportion value corresponding to each data, sequencing the participation proportion values, calibrating the fault reasons at the first order or the first order, and setting the calibrated fault reasons as initial fault judgment results.

Preferably, the final failure cause determination unit includes:

an overlap judging subunit, configured to judge whether an initial fault judging result and a second fault judging result have overlapping fault reasons, and if so, set the overlapping fault reasons as final fault reasons;

the weight setting subunit is used for setting a second weight value for the initial fault judgment result and setting a third weight value for the second fault judgment result if there is no overlapping fault reason;

the deviation calculating subunit is used for calculating data with the largest deviation between the corresponding data and the standard data in the initial fault judging result, setting the data as a first deviation, taking the first deviation as the judging value of the initial fault judging result, and taking the second deviation of the bit corresponding to the data with the largest standard data deviation in the second fault judging result; the degree value calculating subunit is used for multiplying the first deviation by a second weight value to form a first deviation degree value, and multiplying the second deviation by a third weight value to form a second deviation degree value;

And the reason determining subunit is used for judging the relation between the first deviation degree value and the second deviation degree value, if the first deviation degree value is larger than the second deviation degree value, the initial fault judging result is used as a final fault reason, and if the second deviation degree value is larger than the first deviation degree value, the second fault judging result is used as the final fault reason.

The invention also provides a control loop simulation method of the isolating switch operating mechanism, which comprises the following steps:

s100, performing isolation switch characteristic test through an isolation switch operating mechanism to obtain isolation switch characteristic parameters;

s200, preprocessing the characteristic parameters of the isolating switch, wherein the preprocessing comprises the following steps: cleaning and noise reduction treatment;

s300, comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in a standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value;

s400, classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value.

Compared with the prior art, the invention has the following advantages:

The invention provides a control loop simulation system of an isolating switch operating mechanism, which comprises: the isolating switch characteristic parameter acquisition module is used for testing the isolating switch characteristic through the isolating switch operating mechanism to obtain isolating switch characteristic parameters; the data preprocessing module is used for preprocessing the characteristic parameters of the isolating switch, and the preprocessing comprises the following steps: cleaning and noise reduction treatment; the evaluation value calculation module is used for comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in the standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; the classification storage module is used for classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value. The characteristic parameters of the isolating switch can be compared with standard data in a standard characteristic model to obtain an evaluation value, the evaluation value is used for judging faults, and fault classification judgment is more scientific and reasonable according to specific calculated values.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings. The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic diagram of a control loop simulation system of an isolating switch operating mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an evaluation value calculation module according to an embodiment of the present invention;

fig. 3 is a flowchart of a control loop simulation method of an isolating switch operating mechanism according to an embodiment of the invention.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.

The embodiment of the invention provides a control loop simulation system of an isolating switch operating mechanism, please refer to fig. 1, the system comprises: the isolating switch characteristic parameter acquisition module is used for testing the isolating switch characteristic through the isolating switch operating mechanism to obtain isolating switch characteristic parameters;

The evaluation value calculation module is used for comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in the standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value;

the classification storage module is used for classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value.

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the isolating switch characteristic parameter acquisition module is used for testing the isolating switch characteristic through the isolating switch operating mechanism to obtain the isolating switch characteristic parameter; the data preprocessing module is used for preprocessing the characteristic parameters of the isolating switch, and the preprocessing comprises the following steps: cleaning and noise reduction treatment; the evaluation value calculation module is used for comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in the standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; the classification storage module is used for classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value.

The beneficial effects of the technical scheme are as follows: the isolating switch characteristic parameter acquisition module is used for testing the isolating switch characteristic through the isolating switch operating mechanism to obtain the isolating switch characteristic parameter; the data preprocessing module is used for preprocessing the characteristic parameters of the isolating switch, and the preprocessing comprises the following steps: cleaning and noise reduction treatment; the evaluation value calculation module is used for comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in the standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; the classification storage module is used for classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value. The characteristic parameters of the isolating switch can be compared with standard data in a standard characteristic model to obtain an evaluation value, the evaluation value is used for judging faults, and fault classification judgment is more scientific and reasonable according to specific calculated values.

In another embodiment, the isolation switch characteristic parameter acquisition module includes:

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the isolating switch characteristic parameter acquisition module comprises: the operation unit is used for carrying out opening operation and closing operation of the isolating switch based on the isolating switch operation mechanism; the measuring unit is used for measuring the switching-on and switching-off stroke, the switching-on and switching-off speed, the switching-on and switching-off time, the control loop current and the characteristic curve of the isolating switch in the switching-on and switching-off operation process; and the parameter forming unit is used for forming the measured data into the isolating switch characteristic parameters.

The beneficial effects of the technical scheme are as follows: the isolating switch characteristic parameter acquisition module adopting the scheme provided by the embodiment comprises: the operation unit is used for carrying out opening operation and closing operation of the isolating switch based on the isolating switch operation mechanism; the measuring unit is used for measuring the switching-on and switching-off stroke, the switching-on and switching-off speed, the switching-on and switching-off time, the control loop current and the characteristic curve of the isolating switch in the switching-on and switching-off operation process; and the parameter forming unit is used for forming the measured data into the isolating switch characteristic parameters.

In another embodiment, referring to fig. 2, the evaluation value calculating module includes:

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the evaluation value calculating module comprises: the functional label marking unit is used for marking functional labels on the isolating switch according to different functional positions of the isolating switch; the tag classification unit is used for classifying the isolation switch characteristic parameters obtained by the isolation switch characteristic test of the isolation switches with different function tags according to the function tags; the standard characteristic model labeling unit is used for labeling corresponding functional labels for each standard characteristic model with different standard characteristic models corresponding to the isolating switches at different functional positions; the model matching unit is used for matching a standard characteristic model corresponding to the function tag according to the category of the function tag to which the characteristic parameter of the isolating switch belongs; and the calculation obtaining unit is used for inputting the characteristic parameters of the isolating switch into the matched standard characteristic model and outputting an evaluation value of the characteristic parameters of the isolating switch.

The beneficial effects of the technical scheme are as follows: the evaluation value calculation module adopting the scheme provided by the embodiment comprises: the functional label marking unit is used for marking functional labels on the isolating switch according to different functional positions of the isolating switch; the tag classification unit is used for classifying the isolation switch characteristic parameters obtained by the isolation switch characteristic test of the isolation switches with different function tags according to the function tags; the standard characteristic model labeling unit is used for labeling corresponding functional labels for each standard characteristic model with different standard characteristic models corresponding to the isolating switches at different functional positions; the model matching unit is used for matching a standard characteristic model corresponding to the function tag according to the category of the function tag to which the characteristic parameter of the isolating switch belongs; and the calculation obtaining unit is used for inputting the characteristic parameters of the isolating switch into the matched standard characteristic model and outputting an evaluation value of the characteristic parameters of the isolating switch.

In another embodiment, the number system further comprises: the fault prediction module is used for predicting the faults again according to the isolation switch characteristic parameters corresponding to the evaluation values of the high fault class, the low fault class and the no fault class, and outputting a re-prediction result;

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the data management system further comprises: the fault prediction module is used for predicting the faults again according to the isolation switch characteristic parameters corresponding to the evaluation values of the high fault class, the low fault class and the no fault class, and outputting a re-prediction result; and predicting the characteristic parameters of the isolating switch corresponding to the evaluation values of the high fault class, the low fault class and the no fault class according to the prediction modules with different weight values.

The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted, and the system further comprises: the fault prediction module is used for predicting the faults again according to the isolation switch characteristic parameters corresponding to the evaluation values of the high fault class, the low fault class and the no fault class, and outputting a re-prediction result; and predicting the characteristic parameters of the isolating switch corresponding to the evaluation values of the high fault class, the low fault class and the no fault class according to the prediction modules with different weight values. And further verifying and accurately judging the fault cause through prediction.

In another embodiment, the prediction module includes:

acquiring early data in a previous specific time interval of the isolating switch corresponding to the evaluation value of the high fault class; predicting a first prediction evaluation value through a random forest algorithm based on the early-stage data to obtain historical characteristic data of the isolating switch corresponding to the evaluation value of the low fault class; predicting a second predicted evaluation value through a random forest algorithm based on the historical characteristic data;

aiming at the isolating switch corresponding to the evaluation value of the fault-free class, carrying out the isolating switch characteristic test again by adopting an isolating switch operating mechanism to obtain second characteristic data, and calculating a retest evaluation value corresponding to the second characteristic data;

and performing secondary classification according to the first predicted evaluation value, the second predicted evaluation value and the retest evaluation value, and performing classification storage on the isolating switch characteristic parameters corresponding to the corresponding evaluation values according to classification results.

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the prediction module comprises: acquiring early data in a previous specific time interval of the isolating switch corresponding to the evaluation value of the high fault class; predicting a first prediction evaluation value through a random forest algorithm based on the early-stage data to obtain historical characteristic data of the isolating switch corresponding to the evaluation value of the low fault class; predicting a second predicted evaluation value through a random forest algorithm based on the historical characteristic data; aiming at the isolating switch corresponding to the evaluation value of the fault-free class, carrying out the isolating switch characteristic test again by adopting an isolating switch operating mechanism to obtain second characteristic data, and calculating a retest evaluation value corresponding to the second characteristic data; and performing secondary classification according to the first predicted evaluation value, the second predicted evaluation value and the retest evaluation value, and performing classification storage on the isolating switch characteristic parameters corresponding to the corresponding evaluation values according to classification results.

The beneficial effects of the technical scheme are as follows: the prediction module adopting the scheme provided by the embodiment comprises: acquiring early data in a previous specific time interval of the isolating switch corresponding to the evaluation value of the high fault class; predicting a first prediction evaluation value through a random forest algorithm based on the early-stage data to obtain historical characteristic data of the isolating switch corresponding to the evaluation value of the low fault class; predicting a second predicted evaluation value through a random forest algorithm based on the historical characteristic data; aiming at the isolating switch corresponding to the evaluation value of the fault-free class, carrying out the isolating switch characteristic test again by adopting an isolating switch operating mechanism to obtain second characteristic data, and calculating a retest evaluation value corresponding to the second characteristic data; and performing secondary classification according to the first predicted evaluation value, the second predicted evaluation value and the retest evaluation value, and performing classification storage on the isolating switch characteristic parameters corresponding to the corresponding evaluation values according to classification results.

In another embodiment, the system further comprises a fault analysis module, which is used for determining fault reasons for the isolating switch characteristic parameters corresponding to the fault class, the high fault class and the low fault class, and calibrating the isolating switch characteristic parameters on corresponding fault equipment.

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment further comprises a fault analysis module, which is used for determining fault reasons for the isolating switch characteristic parameters corresponding to the fault class, the high fault class and the low fault class, and calibrating the isolating switch characteristic parameters on corresponding fault equipment.

The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment further comprises a fault analysis module, wherein the fault analysis module is used for determining fault reasons for the isolating switch characteristic parameters corresponding to the fault class, the high fault class and the low fault class and calibrating the isolating switch characteristic parameters on corresponding fault equipment.

In another embodiment, the fault analysis module includes: the random data set forming unit is used for randomly combining the data included in the characteristic parameters of the isolating switch to form a random data set; each random data set comprises at least two data;

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the fault analysis module comprises: the random data set forming unit is used for randomly combining the data included in the characteristic parameters of the isolating switch to form a random data set; each random data set comprises at least two data; an initial fault judgment result unit, configured to determine at least one initial fault judgment result for each random data set; the second fault judging result unit is used for searching one data with the largest deviation from the standard data in each random data set, determining the fault reason with the largest probability corresponding to the data and setting the fault reason as a second fault judging result; and the final fault cause determining unit is used for determining the final fault cause corresponding to the random data set according to the initial fault judging result and the second fault judging result.

The beneficial effects of the technical scheme are as follows: the fault analysis module adopting the scheme provided by the embodiment comprises: the random data set forming unit is used for randomly combining the data included in the characteristic parameters of the isolating switch to form a random data set; each random data set comprises at least two data; an initial fault judgment result unit, configured to determine at least one initial fault judgment result for each random data set; the second fault judging result unit is used for searching one data with the largest deviation from the standard data in each random data set, determining the fault reason with the largest probability corresponding to the data and setting the fault reason as a second fault judging result; and the final fault cause determining unit is used for determining the final fault cause corresponding to the random data set according to the initial fault judging result and the second fault judging result.

In another embodiment, the initial failure determination result unit includes:

The working principle of the technical scheme is as follows: the scheme adopted in this embodiment is that the initial fault judgment result unit includes: a setting subunit, configured to set a first weight value for data in each random data set, where the first weight values of the same data in different random data sets are different, and the first weight values of different data in the same random data set are the same or different; the difference value calculating subunit is used for calculating the difference value between each data in the random data set and the standard data, multiplying each difference value by a first weight value corresponding to the data to form a plurality of product results, and adding all the product results in the random data set to form a result value; and the calibration subunit is used for dividing each product result by the result value to form a participation proportion value corresponding to each data, sequencing the participation proportion values, calibrating the fault reasons at the first order or the first order, and setting the calibrated fault reasons as initial fault judgment results.

The beneficial effects of the technical scheme are as follows: the initial fault judgment result unit adopting the scheme provided by the embodiment comprises: a setting subunit, configured to set a first weight value for data in each random data set, where the first weight values of the same data in different random data sets are different, and the first weight values of different data in the same random data set are the same or different; the difference value calculating subunit is used for calculating the difference value between each data in the random data set and the standard data, multiplying each difference value by a first weight value corresponding to the data to form a plurality of product results, and adding all the product results in the random data set to form a result value; and the calibration subunit is used for dividing each product result by the result value to form a participation proportion value corresponding to each data, sequencing the participation proportion values, calibrating the fault reasons at the first order or the first order, and setting the calibrated fault reasons as initial fault judgment results.

In another embodiment, the final failure cause determination unit includes:

the deviation calculating subunit is used for calculating data with the largest deviation between the corresponding data and the standard data in the initial fault judging result, setting the data as a first deviation, taking the first deviation as the judging value of the initial fault judging result, and taking the second deviation of the bit corresponding to the data with the largest standard data deviation in the second fault judging result;

the degree value calculating subunit is used for multiplying the first deviation by a second weight value to form a first deviation degree value, and multiplying the second deviation by a third weight value to form a second deviation degree value;

The working principle of the technical scheme is as follows: the solution adopted in this embodiment is that the final fault cause determining unit includes: an overlap judging subunit, configured to judge whether an initial fault judging result and a second fault judging result have overlapping fault reasons, and if so, set the overlapping fault reasons as final fault reasons; the weight setting subunit is used for setting a second weight value for the initial fault judgment result and setting a third weight value for the second fault judgment result if there is no overlapping fault reason; the deviation calculating subunit is used for calculating data with the largest deviation between the corresponding data and the standard data in the initial fault judging result, setting the data as a first deviation, taking the first deviation as the judging value of the initial fault judging result, and taking the second deviation of the bit corresponding to the data with the largest standard data deviation in the second fault judging result; the degree value calculating subunit is used for multiplying the first deviation by a second weight value to form a first deviation degree value, and multiplying the second deviation by a third weight value to form a second deviation degree value; and the reason determining subunit is used for judging the relation between the first deviation degree value and the second deviation degree value, if the first deviation degree value is larger than the second deviation degree value, the initial fault judging result is used as a final fault reason, and if the second deviation degree value is larger than the first deviation degree value, the second fault judging result is used as the final fault reason.

The beneficial effects of the technical scheme are as follows: the final fault cause determining unit adopting the scheme provided by the embodiment comprises: an overlap judging subunit, configured to judge whether an initial fault judging result and a second fault judging result have overlapping fault reasons, and if so, set the overlapping fault reasons as final fault reasons; the weight setting subunit is used for setting a second weight value for the initial fault judgment result and setting a third weight value for the second fault judgment result if there is no overlapping fault reason; the deviation calculating subunit is used for calculating data with the largest deviation between the corresponding data and the standard data in the initial fault judging result, setting the data as a first deviation, taking the first deviation as the judging value of the initial fault judging result, and taking the second deviation of the bit corresponding to the data with the largest standard data deviation in the second fault judging result; the degree value calculating subunit is used for multiplying the first deviation by a second weight value to form a first deviation degree value, and multiplying the second deviation by a third weight value to form a second deviation degree value; and the reason determining subunit is used for judging the relation between the first deviation degree value and the second deviation degree value, if the first deviation degree value is larger than the second deviation degree value, the initial fault judging result is used as a final fault reason, and if the second deviation degree value is larger than the first deviation degree value, the second fault judging result is used as the final fault reason.

In actual operation, the failure cause may be verified by a specific failure diagnosis step and a specific processing method. Common types of faults of the isolating switch operating mechanism in the invention are as follows: the electric energy-saving switch cannot be opened or closed, the switch cannot be stopped, the switch cannot be self-maintained, the motor cannot operate, the heater fails, and the illuminating lamp is not lightened. And aiming at different fault conditions, different treatments are carried out through analysis of fault diagnosis phenomena. The process and method for the fault diagnosis process can be applied to a teaching scene, and a training learner is taught how to perform the fault diagnosis process by means of animation.

Specifically, different processing modes are performed for different types of faults, and the specific steps are as follows: 1. the method and the steps for diagnosing and processing the faults that the switch can not be opened and the switch can not be closed are as follows:

the first step: and (5) analyzing fault phenomena.

And (3) manually shaking the isolating switch to a half-split and half-closed position, closing the motor loop power supply and controlling the power supply to be opened QF1 and QF2. Pressing a closing button SB1, wherein the closing contactor KM1 is not attracted; when the opening button SB2 is pressed, the opening contactor KM2 is not engaged, and the common part of the control circuit is judged to be faulty.

Pressing a closing button SB1, and closing a closing contactor KM 1; when the brake release button SB2 is pressed, the brake release contactor KM2 is attracted, the motor is not operated, and the failure of the motor circuit components is judged.

And a second step of: method and steps for fault diagnosis processing of a common part of a control loop.

1. The control loop air switch QF2 voltage is measured.

Closing a power supply air switch QF2, measuring the voltage of an upper terminal of the air switch to be about 220V by using an alternating-current voltage gear of a universal meter, and if the lower terminal has no voltage, indicating that the air switch is damaged and needs to be replaced; if the upper end of the air switch has no voltage, the upper power supply is not powered.

2. The external interlock is measured on and off.

The air switch QF2 was turned off and the No. 2 terminal of the air switch QF2 and the external interlock X1-14 terminals were measured using a multimeter buzzer. If the universal meter sounds a beep, the loop is judged to be normal, and if the loop does not sounds a beep, the loop is judged to have broken wires or poor contact points.

3. The manual locking limit switch SP3 is measured to be on-off.

The external interlock X1-14 terminals and the No. 2 terminal of the manual lockout limit switch SP3 were measured using a multimeter buzzer. If the universal meter sounds a beep, the loop is judged to be normal, and if the loop does not sounds a beep, the loop is judged to have broken wires or poor contact points.

4. And measuring the on-off state of the motor protector GDH.

The No. 2 terminal of the manual lockout limit switch SP3 and the No. 96 terminal of the motor protector GDH were measured using a multimeter buzzer. If the universal meter sounds a beep, the loop is judged to be normal, and if the loop does not sounds a beep, the loop is judged to have broken wires or poor contact points.

5. The measurement stop button SB3 is turned on and off.

The 96 th terminal of the motor protector GDH and the 12 th terminal of the stop button SB3 are measured using a multimeter buzzer. If the multimeter does not generate beeping sound, the loop is judged to be normal, and if the multimeter generates beeping sound, the loop is judged to have broken wires or poor contact points.

6. Five-prevention on-off is measured. And the 23 # terminal of the opening button SB2 and the X1-7 # terminals of the five-prevention are measured by using a universal meter buzzer, if the universal meter sounds, the loop is judged to be normal, and if the loop does not sounds, the loop is judged to have broken wires or poor contact points.

7. And measuring the on-off state of the five-prevention air switch QF 2.

And measuring the five-prevention X1-7 terminal and the No. 4 terminal of the air switch QF2 by using a universal meter buzzer, judging that the loop is normal if the universal meter buzzes, and judging that the loop is broken or poor in contact if the loop does not buzzes.

And a third step of: a method and a step for diagnosing and processing the faults of motor loop components.

1. And measuring the power supply voltage of the motor loop.

Measuring the voltage between terminals 1, 3 and 5 of the motor loop power supply air switch QF1 and the voltage between terminals 1 and 5 to be 400 V+/-5 percent by using a universal meter alternating current voltage gear; if the voltage exceeds 400V plus or minus 5%, the voltage is abnormal;

2. the air switch QF1 is measured to be on-off.

The upper power supply is disconnected, the power supply is turned on for opening QF1, the No. 1 terminal, the No. 2 terminal, the No. 3 terminal, the No. 4 terminal and the No. 5 terminal and the No. 6 terminal are respectively measured by using a universal meter buzzer, if the universal meter sounds, the air switch is judged to be normal, and if the air switch does not sound, the air switch is judged to be abnormal.

3. And measuring the on-off state of the three-phase contact of the closing contactor.

Pressing down the actuation part of the closing contactor KM1, measuring the terminals No. 2, no. 4 and No. 6 of the power supply empty-opening QF1 and the terminals No. 2, no. 4 and No. 6 of the closing contactor KM1 by using a universal meter buzzer, judging that the loop is normal if the universal meter generates a buzzer, and judging that the loop is broken or poor in contact with the contact if the multimeter does not generate the buzzer.

4. And measuring the on-off state of the three-phase contact of the opening contactor.

Pressing the suction part of the opening contactor KM2, respectively measuring the No. 2, 4 and 6 terminals of the power supply empty-opening QF1 and the No. 2, 4 and 6 terminals corresponding to the opening contactor KM2 by using a multimeter buzzer, judging that the loop is normal if the multimeter sounds, and judging that the loop is broken or poor in contact if the multimeter does not sounds.

5. And measuring the on-off state of the motor protector GDH.

Closing a motor loop power supply idle-opening QF1 and a control loop power supply idle-opening QF1, pressing a closing button SB1, stopping after the motor rotates for 2-4 seconds, cutting off the motor loop power supply idle-opening QF1 and the control loop power supply idle-opening QF1, checking terminals 95 and 96 of a motor protector GDH by using a universal meter buzzer, judging that the motor current exceeds the rated action current if the universal meter does not generate a buzzer, and starting the protector. And checking the terminals 97 and 98 of the GDH of the motor protector by using a multimeter buzzer, and judging that the motor current exceeds the rated action current if the multimeter sounds.

6. And measuring the connection on-off of the motor.

Opening the motor junction box, using the universal meter buzzer to measure the No. 2 terminal and the motor U1 terminal, the No. 4 terminal and the V1 terminal, the No. 6 terminal and the W1 terminal of closing contactor KM1, if the universal meter sends the beeping sound, judging that the loop is normal, if the beeping sound is not sent out, judging that the loop has broken wire or poor contact.

7. Insulation resistance of the motor coil and the housing is measured.

And (3) disconnecting the wiring on the terminals of the motors U1, V1 and W1, disconnecting the connecting sheets on the terminals of the motors U2, V2 and W2, and measuring the insulation resistance of the U1 or U2, the housing, the V1 or V2, the housing and the W1 or W2 and the housing by using a 500V megameter respectively, wherein the insulation resistance is not less than 0.5MΩ, the motor is normal, and if the insulation resistance is less than 0.5MΩ, the motor is abnormal.

8. The resistance value of the motor coil is measured.

The resistance values of the terminals U1 and U2, the resistance values of the terminals V1 and V2 and the resistance values of the terminals W1 and W2 of the motor are measured by using a universal meter resistance gear, the difference of the resistance values of the three-phase coils is less than 2%, the motor is normal, and if the difference is more than 2%, the motor is abnormal.

2. The method and the steps for diagnosing and processing the switching-on fault are as follows:

the first step: and (5) analyzing fault phenomena.

And (3) manually shaking the isolating switch to a half-split and half-closed position, closing the motor loop power supply and controlling the power supply to be opened QF1 and QF2. Pressing a closing button SB1, closing a closing contactor KM1, operating a three-phase alternating current motor M, loosening the closing button SB1, continuously operating the three-phase alternating current motor M, opening a closing limit switch SP1 after closing in place, opening the closing contactor KM1, and stopping the three-phase alternating current motor M; pressing the brake release button SB2, the brake release contactor KM2 is not attracted, and the fault is shown in the brake release loop part, and the fault range is locked in four components such as a brake release limit switch SP2, the brake release contactor KM2, a remote/on-site knob SA and the brake release button SB 2.

And a second step of: fault diagnosis and handling.

1. And measuring the on-off state of the brake-separating limit switch.

And a multimeter buzzer is used for measuring a No. 2 terminal of the brake separating limit switch SP2 and a No. 2 terminal of the brake separating contactor KM2, if the multimeter sounds a beep, the loop is judged to be normal, and if the multimeter does not sounds a beep, the loop is judged to have broken wires or poor contact points.

2. And measuring the coil resistance of the brake-separating contactor KM 2.

Measuring the resistance value between the A1 and A2 terminals (coils) of the opening contactor KM2 by using a universal meter resistance gear, wherein the resistance value is normal within +/-5% of the rated resistance value of the coils; if the resistance value exceeds the rated resistance value by + -5%, the coil is indicated to be damaged.

3. The remote/on-site knob SA is measured on and off.

A1 terminal of the opening contactor KM2 and a 7 terminal of the remote/on-site knob SA are measured by using a multimeter buzzer, if the multimeter sounds, the loop is judged to be normal, and if the multimeter does not sounds, the loop is judged to have broken wires or poor contact points. 4. The switch-off button SB2 is measured to be on-off.

Pressing the opening button SB2, measuring the No. 7 terminal of the remote/on-site knob SA and the No. 23 terminal of the opening button SB2 by using a multimeter buzzer, judging that the loop is normal if the multimeter sounds, and judging that the loop has broken wires or poor contact points if the loop does not sounds.

3. The method and the steps for diagnosing and processing the fault that the switch can be opened and the switch cannot be closed are as follows:

the first step: and (5) analyzing fault phenomena.

And (3) manually shaking the isolating switch to a half-split and half-closed position, closing the motor loop power supply and controlling the power supply to be opened QF1 and QF2. Pressing a brake separating button SB2, sucking a brake separating contactor KM2, operating a three-phase alternating current motor M, loosening the brake separating button SB2, continuously rotating the three-phase alternating current motor M, opening a brake separating limit switch SP2 after brake separating is in place, opening the brake separating contactor KM2, and stopping the three-phase alternating current motor M; when the closing button SB1 is pressed, the closing contactor KM1 is not attracted, so that the fault is in a closing loop part, and the fault range is locked on four components of the closing limit switch SP1, the closing contactor KM1, a remote/on-site knob SA, the closing button SB1 and the like.

And a second step of: fault diagnosis and handling.

1. And measuring the on-off state of the closing limit switch SP 1.

And measuring a No. 2 terminal of the closing limit switch SP1 to an A No. 2 terminal of the closing contactor KM1 by using a multimeter buzzer, judging that the loop is normal if the multimeter buzzes, and judging that the loop is broken or poor in contact if the multimeter does not buzzes.

2. And measuring the resistance value of the coil of the closing contactor KM 1.

And measuring the resistance value between the A1 and A2 terminals (coils) of the switching-on contactor KM1 by using a universal meter resistance gear, wherein the resistance value is normal within +/-5% of the rated resistance value of the coils, and if the resistance value exceeds +/-5% of the rated resistance value, the coils are damaged.

3. The remote/on-site knob SA is measured on and off.

And the A1 terminal of the switching-on contactor KM1 and the 3 terminal of the remote/local knob SA are measured by using a universal meter buzzer, if the universal meter generates a buzzer, the loop is judged to be normal, and if the multimeter does not generate a buzzer, the loop is judged to have broken wires or poor contact points.

4. The switch-on button SB1 is measured to be on-off.

Pressing the closing button SB1, measuring the No. 3 terminal of the remote/on-site knob SA and the No. 23 terminal of the closing button SB1 by using a multimeter buzzer, judging that the loop is normal if the multimeter buzzes, and judging that the loop is broken or poor in contact if the multimeter does not buzzes.

4. The method and the step that the opening and closing can not stop fault diagnosis processing are as follows: the first step: and (5) analyzing fault phenomena.

And (3) manually shaking the isolating switch to a half-split and half-closed position, closing the motor loop power supply and controlling the power supply to be opened QF1 and QF2. Pressing a closing button SB1, closing a closing contactor KM1, driving a three-phase alternating current motor M, loosening the closing button SB1, driving the three-phase alternating current motor M still, pressing a stop button SB3 or closing in place, keeping the motor from stopping until a motor protector GDH starts a cut-off circuit after locked-rotor, pressing a separating button SB2, closing a separating contactor KM2, driving the three-phase alternating current motor M, loosening the separating button SB2, driving the three-phase alternating current motor M still, pressing the stop button SB3 or separating in place, driving the motor still until the motor protector GDH starts the cut-off circuit after locked-rotor, and locking the fault range at three components such as the stop button SB3, the closing limit switch SP1, the separating limit switch SP2 and the like.

And a second step of: fault diagnosis and handling.

1. The measurement stop button SB3 is turned on and off.

The stop button SB3 is pressed, and the terminals 11 and 12 of the stop button SB3 are measured by using the multimeter buzzer, if the multimeter does not generate a beep, the button is judged to be normal, and if the multimeter generates a beep, the button is judged to have broken wires or poor contact points.

2. And measuring the on-off state of the closing limit switch SP 1.

3. The switch-off limit switch SP2 is measured to be switched on and off.

5. The method and the step of fault diagnosis processing that the opening and closing cannot be self-maintained are as follows:

the first step: and (5) analyzing fault phenomena.

And (3) manually shaking the isolating switch to a half-split and half-closed position, closing the motor loop power supply and controlling the power supply to be opened QF1 and QF2. Pressing a switching-on button SB1, sucking a switching-on contactor KM1, rotating a three-phase alternating current motor M, loosening the switching-on button SB1, disconnecting the switching-on contactor KM1, stopping rotating the three-phase alternating current motor M, pressing a switching-off button SB2, sucking a switching-off contactor KM2, rotating the three-phase alternating current motor M, loosening the switching-off button SB2, disconnecting the switching-off contactor KM2, stopping rotating the three-phase alternating current motor M, and indicating that a fault occurs in a self-holding loop part, wherein a fault range is locked between two components of an auxiliary contact of the switching-on contactor KM1 and an auxiliary contact of the switching-off contactor KM 2.

And a second step of: fault diagnosis and handling. 1. And measuring the on-off of auxiliary contacts of the closing contactor KM 1.

And pressing down the suction part of the closing contactor KM1, measuring terminals 13 and 14 of the closing contactor KM1 by using a multimeter buzzer, judging that the contact is normal if the multimeter sounds, and judging that the contact is bad if the multimeter does not sounds.

2. And measuring the on-off of auxiliary contacts of the brake-separating contactor KM 2.

The actuation part of the opening contactor KM2 is pressed, terminals 13 and 14 of the opening contactor KM2 are measured by using a multimeter buzzer, if the multimeter sounds, the contact is judged to be normal, and if the multimeter does not sounds, the contact is judged to be bad.

6. Method and steps for diagnosing failure of motor operation:

the first step: and (5) analyzing fault phenomena.

And (3) manually shaking the isolating switch to a half-split and half-closed position, closing the motor loop power supply and controlling the power supply to be opened QF1 and QF2. Pressing a closing button SB1, and closing a closing contactor KM 1; pressing the opening button SB2, the opening contactor KM2 is attracted, the motor does not operate, the fault is indicated to be in a motor loop, and the fault range is locked in five components such as a power supply and air switch QF1, a three-phase contact of the closing contactor KM1, a three-phase contact of the opening contactor KM2, a motor protector GDH and a motor M.

And a second step of: fault diagnosis and treatment method.

1. And measuring the power supply voltage of the motor loop.

2. the air switch QF1 is measured to be on-off.

5. And measuring the on-off state of the motor protector GDH.

6. And measuring the connection on-off of the motor.

7. Insulation resistance of the motor coil and the housing is measured.

8. The resistance value of the motor coil is measured.

7. Method and steps for heater failure fault diagnosis processing:

the first step: and (5) analyzing fault phenomena.

The heating/lighting loop power is turned on and QF3 is turned off. When the temperature is reduced to 5 ℃ or the humidity is reduced to 85%, the heater EH does not heat, and when the temperature is increased to 10 ℃ or the humidity is reduced to 80%, the heater EH cannot stop heating, so that the fault is in a heating loop part, and the fault range locks three components such as an air switch QF3, a temperature and humidity controller WSK and the heater EH.

And a second step of: fault diagnosis and handling.

1. The heating loop supply voltage is measured.

And when the air switch QF3 of the power supply is closed, the voltage of the No. 1 terminal and the No. X2-9 terminal of the air switch is 220 V+/-5% by using the alternating voltage gear of the universal meter, the power supply is normal, if the No. 2 terminal and the No. X2-9 terminal of the air switch have no voltage, the air switch is damaged, the air switch needs to be replaced, and if the No. 1 terminal and the No. X2-9 terminal of the air switch have no voltage, the upper power supply is not powered.

2. And detecting the temperature and humidity controller WSK. The manual/select button on the temperature and humidity controller WSK is manually pressed once, the manual heating indicator lamp starts to flash, the manual heating is started, whether the heating plate is heated or not is measured by the thermometer, the manual/select button is pressed once again, the heating indicator lamp stops flashing, and whether the heating plate is stopped or not is measured by the thermometer.

3. The heater EH resistance is measured.

And (3) disconnecting the terminals 1 and 2 of the heater EH, measuring the resistance values of the terminals 1 and 2 of the heater EH by using a universal meter buzzer, and if the resistance values are within +/-5% of the rated resistance values, normally, and if the resistance values are exceeded, indicating that the heater is damaged.

8. Method and steps for fault diagnosis treatment of an illumination loop:

the first step: and (5) analyzing fault phenomena.

The heating/lighting loop power is turned on and QF3 is turned off. Pressing the button of the lighting lamp HL, the lighting lamp HL is not lightened, and the fault is indicated to be in a lighting loop, and the fault range locks two components such as a power supply, a power supply air switch QF3, the lighting lamp HL and the like.

And a second step of: fault diagnosis and handling.

1. The lighting loop supply voltage is measured.

2. The lamp HL voltage was measured.

Closing a power supply air switch QF3, measuring terminals 1 and 2 of an illuminating lamp HL by using an alternating-current voltage gear of a universal meter to check whether voltage exists, if so, breaking a wire or causing poor contact, otherwise, checking whether the voltage exists

3. The illumination lamp HL is detected.

And pressing a button switch of the illuminating lamp HL, and judging that the illuminating lamp HL is damaged if the illuminating lamp is not on.

The fault diagnosis analysis and processing process can be displayed to the trained students through the corresponding produced animation, so that the application of teaching scenes is realized. In another embodiment, the present embodiment further provides a method for simulating a control loop of an isolating switch operating mechanism, referring to fig. 3, the method includes:

The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the isolation switch operating mechanism is used for testing the isolation switch characteristics, so that the isolation switch characteristic parameters are obtained; preprocessing the characteristic parameters of the isolating switch, wherein the preprocessing comprises the following steps: cleaning and noise reduction treatment; comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in a standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value.

The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to test the characteristics of the isolating switch through the isolating switch operating mechanism, so that the characteristic parameters of the isolating switch are obtained; preprocessing the characteristic parameters of the isolating switch, wherein the preprocessing comprises the following steps: cleaning and noise reduction treatment; comparing the preprocessed characteristic parameters of the isolating switch with standard characteristic data in a standard characteristic model, and evaluating the characteristic parameters of the isolating switch to obtain an evaluation value; classifying the obtained evaluation values into the following categories: and the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result and the isolation switch characteristic parameters corresponding to the evaluation value.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A control loop simulation system for an isolating switch operating mechanism, comprising:

the classification storage module is used for classifying the obtained evaluation values into the following categories: the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result;

The system further comprises: the fault prediction module is used for predicting the faults again according to the isolation switch characteristic parameters corresponding to the evaluation values of the high fault class, the low fault class and the no fault class, and outputting a re-prediction result;

2. The system of claim 1, wherein the isolation switch operating mechanism control loop simulation module comprises:

3. The isolation switch operating mechanism control loop simulation system of claim 1, wherein the evaluation value calculation module comprises:

4. The isolation switch operating mechanism control loop simulation system of claim 1, wherein the prediction module comprises:

acquiring early data in a previous specific time interval of the isolating switch corresponding to the evaluation value of the high fault class; predicting a first prediction evaluation value through a random forest algorithm based on the earlier data;

5. The system of claim 1, further comprising a fault analysis module configured to determine a cause of a fault for the parameters of the isolation switch characteristic corresponding to the fault class, the high fault class, and the low fault class, and to calibrate the fault cause to the corresponding fault device.

6. The isolation switch operating mechanism control loop simulation system of claim 5, wherein the fault analysis module comprises:

7. The system according to claim 6, wherein the initial failure determination result unit includes:

8. The disconnecting switch operating mechanism control loop simulation system according to claim 6, wherein the final fault cause determination unit includes:

9. A control loop simulation method of an isolating switch operating mechanism is characterized by comprising the following steps:

s400, classifying the obtained evaluation values into the following categories: the fault class, the high fault class, the low fault class and the no fault class are classified and stored according to the classification result;

further comprises: performing fault re-prediction on the characteristic parameters of the isolating switch corresponding to the evaluation values of the high fault class, the low fault class and the no fault class, and outputting a re-prediction result;