CN116660660B - Train power supply safety monitoring system and method - Google Patents
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Abstract
The application relates to the technical field of train power supply safety, and particularly discloses a train power supply safety monitoring system and method, wherein the system comprises the following steps: the electric performance parameter monitoring module is used for monitoring electric performance parameters of each preset point position of the train in real time; the sampling module is used for sampling the electrical performance parameters of each preset point position of the train according to a sampling strategy; the parameter acquisition module is used for acquiring real-time control parameters and real-time state parameters of the train; the simulation analysis module is used for obtaining standard electrical performance parameters of each preset point position of the train according to the real-time control parameters and the real-time state parameters of the train; the analysis early warning module is used for comparing the sampled electrical performance parameters with the standard electrical performance parameters, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result; according to the application, the monitoring degree can be adaptively adjusted according to the actual state by carrying out feedback adjustment on the sampling strategy.
Description
Technical Field
The application relates to the technical field of train power supply safety, in particular to a train power supply safety monitoring system and method.
Background
The supply of electric power safety and stability is one of projects requiring basic assurance in train transportation, and is related to whether the train can effectively perform normal operation and the safety of passengers, so that the safety risk of the power supply process of the train needs to be monitored, analyzed and judged, and potential safety hazards can be treated in advance.
In the prior art, the electric performance parameters of each position of the train are monitored and judged in real time through the electric performance parameter detection module, when a certain monitored electric performance parameter exceeds an early warning interval, an alarm signal is generated to remind electric power maintenance personnel to carry out timely overhaul and maintenance, and meanwhile, the running risk existing in the running process of the train is early warned according to the out-of-tolerance analysis process of each electric performance parameter, so that the early judging process of the power supply risk is realized.
However, because the demand of the calculation force is limited to a certain extent in the running process of the train, when the early warning monitoring is met and the out-of-tolerance quantity is analyzed and judged in real time, the occupation of the calculation force is too high, and the running of other calculation force demands of the train is influenced.
Disclosure of Invention
The application aims to provide a train power supply safety monitoring system and method, which solve the following technical problems:
and how to adaptively monitor and analyze according to the power supply state of the train.
The aim of the application can be achieved by the following technical scheme:
a train power safety monitoring system, the system comprising:
the electric performance parameter monitoring module is used for monitoring electric performance parameters of each preset point position of the train in real time;
the sampling module is used for sampling the electrical performance parameters of each preset point position of the train according to a sampling strategy;
the parameter acquisition module is used for acquiring real-time control parameters and real-time state parameters of the train;
the simulation analysis module is used for obtaining standard electrical performance parameters of each preset point position of the train according to the real-time control parameters and the real-time state parameters of the train;
and the analysis and early warning module is used for comparing the sampled electrical performance parameters with the standard electrical performance parameters, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result.
Further, the sampling strategy includes:
acquiring real-time electrical performance parameters according to the initial sampling frequency and the initial sampling interval duration;
and carrying out feedback adjustment on the initial sampling frequency and the initial sampling interval according to the comparison analysis result.
Further, the process of the comparison analysis includes:
by the formulaCalculating to obtain a power supply risk value of the ith preset point position +.>；
Wherein N is the number of monitored electrical performance parameters;；/>the j electrical performance parameter value is the i preset point position; />For +.>A maximum value; />For +.>An average value;the method comprises the steps that the maximum value of a jth electrical performance parameter standard curve is the ith preset point in a sampling interval; />The average value of a jth electrical performance parameter standard curve of the ith preset point in the sampling interval is set;
when (when)When (I)>；
When (when)When (I)>；
When (when)When (I)>；
When (when)When (I)>；
A first allowable deviation value for the jth electrical property parameter; />A second allowable deviation value for the jth electrical property parameter; />、/>A fixed early warning value is preset corresponding to the jth electrical performance parameter; />The error allowance value of the j-th electrical performance parameter is; />、/>Is a preset adjustment coefficient; />For +.>The number of time points; />Is the sampling duration; />For the j-th electrical performance parameter at +.>Corresponding reference amounts of the sampling duration; />The j-th electrical performance parameter corresponds to a weight coefficient;
according to the power supply risk valueAnd judging the power supply safety of the ith preset point position.
Further, according to the power supply risk valueThe judging process for the power supply safety of the ith point location comprises the following steps:
risk value of power supplyRisk threshold interval with the i-th preset point position +.>And (3) performing comparison:
if it isJudgingThe ith preset point position has a power supply safety problem and generates an overhaul instruction;
if it isJudging that the power supply safety risk exists at the ith preset point position, and adjusting a sampling strategy;
if it isAnd judging that the power supply condition of the ith preset point position is normal.
The train power safety monitoring system of claim 4, wherein the sampling strategy adjustment process comprises:
if it isIncreasing the sampling frequency and delaying the duration of each sampling interval;
sampling frequency after adjustment of ith preset point position；
Sampling interval duration after adjustment of ith preset point position；
wherein ,is the initial sampling frequency; />The initial sampling interval duration is; />Is the first correction coefficient; />Is the second correction coefficient.
Further, the system further comprises:
the power equipment monitoring module is used for acquiring state information of the power equipment;
the state information comprises temperature data of key points, power data of a power equipment heat dissipation module and operation data of power equipment;
and the analysis and early warning module is used for carrying out safety monitoring on the running state of the power equipment according to the state information.
Further, the process of safety monitoring the operation state of the electrical equipment comprises the following steps:
by the formulaCalculating to obtain a real-time device risk value of the electrical device>；
Wherein M is the total number of monitoring points of the power equipment;；/>a real-time temperature value for the kth location point; />Is a first conversion function; />Real-time load values for the electrical equipment; />Is a second transformation function; />Real-time power for the heat dissipation module; />Is a third transformation function; />Is a preset period of time; />The position coefficient of the kth monitoring point position;
x is a judgment function, whenX=b; otherwise, go (L)>；/>Is->An allowable threshold corresponding to the time period; b is an early warning value;
real-time equipment risk valueAnd a preset threshold->And (3) performing comparison:
if it isAnd judging that the operation state of the power equipment has safety risk, and generating an overhaul instruction.
The method completes the monitoring process of the power supply safety of the train through the power supply safety monitoring system of the train, and comprises the following steps:
s1, monitoring the electrical performance parameters of each preset point of a train in real time through an electrical performance parameter monitoring module, and sampling the electrical performance parameters of each preset point of the train according to a sampling strategy by a sampling module;
s2, acquiring real-time control parameters and real-time state parameters of the train through a parameter acquisition module, and acquiring standard electrical performance parameters of each preset point position of the train through a simulation analysis module according to the real-time control parameters and the real-time state parameters of the train;
s3, comparing and analyzing the sampled electrical performance parameters with the standard electrical performance parameters through an analysis and early warning module, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result.
The application has the beneficial effects that:
(1) According to the application, the sampling model is set to sample the electrical performance parameters of each preset point of the train, the sampling process is completed according to the sampling strategy, and the sampling strategy is subjected to feedback adjustment according to the analysis result of the analysis early warning module, so that the monitoring degree can be adaptively adjusted according to the actual state, the occupation of calculation force is reduced, and the early warning of power supply safety is realized; the electrical performance parameters of each preset point of the train monitored in real time by the electrical performance parameter monitoring module are compared with the electrical performance parameters of each preset point of the train, so that analysis and judgment of each preset point and the electrical performance parameters can be realized more accurately, and the accuracy of analysis and judgment is improved.
(2) According to the application, the state information of the power equipment is obtained, and the operation state of the power equipment is safely monitored through the analysis and early warning module according to the state information, so that the safety monitoring process of the operation state of the power equipment on the train can be realized, and the safe and stable operation of the power hub on the train is ensured.
Drawings
The application is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram of a train power safety monitoring system of the present application;
fig. 2 is a flow chart of the steps of the train power supply safety monitoring method of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, in one embodiment, a train power safety monitoring system is provided, the system comprising:
the electric performance parameter monitoring module is used for monitoring electric performance parameters of each preset point position of the train in real time;
the sampling module is used for sampling the electrical performance parameters of each preset point position of the train according to a sampling strategy;
the parameter acquisition module is used for acquiring real-time control parameters and real-time state parameters of the train;
the simulation analysis module is used for obtaining standard electrical performance parameters of each preset point position of the train according to the real-time control parameters and the real-time state parameters of the train;
and the analysis and early warning module is used for comparing the sampled electrical performance parameters with the standard electrical performance parameters, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result.
According to the technical scheme, the electric performance parameters of each preset point of the train are sampled by setting the sampling model, the sampling process is completed according to the sampling strategy, and the sampling strategy is subjected to feedback adjustment by analyzing the result analyzed by the early warning module, so that the monitoring degree can be adaptively adjusted according to the actual state, the occupation of calculation force is reduced, and the early warning of power supply safety is realized; meanwhile, in the comparison and analysis process of the embodiment, the real-time control parameters and the real-time state parameters of the train are obtained through the parameter acquisition module and the simulation analysis module, and the simulation analysis process is carried out, so that the standard electric performance parameters in a normal state can be obtained, and obviously, the comparison and analysis process of the electric performance parameters of each preset point position of the train monitored in real time through the electric performance parameter monitoring module can be carried out, so that the analysis and judgment of each preset point position and the electric performance parameters can be more accurately realized, and the accuracy of the analysis and judgment is improved.
It should be noted that, in this embodiment, the simulation analysis module is set in advance according to the electric power analysis model in the prior art, and the corresponding standard electric performance parameters can be obtained by inputting the real-time control parameters and the real-time state parameters of the train running state; the selection setting of the preset points in the embodiment is set by electric personnel according to the distribution state of the train circuit, and is not described in detail herein; the electrical performance parameters collected in the embodiment include current, voltage, etc., which are not limited herein, and meanwhile, the electrical performance parameter monitoring module in the present application realizes its functions through the sensors corresponding to the electrical performance parameters, which are not described herein in detail.
As an embodiment of the present application, the sampling strategy includes:
acquiring real-time electrical performance parameters according to the initial sampling frequency and the initial sampling interval duration;
and carrying out feedback adjustment on the initial sampling frequency and the initial sampling interval according to the comparison analysis result.
By the technical scheme, the sampling strategy in the embodiment acquires real-time electrical performance parameters according to the initial sampling frequency and the initial sampling interval duration; and then, carrying out real-time feedback adjustment on the initial sampling frequency and the initial sampling interval according to the comparison analysis result, so that the sampling strategy can be adaptively adjusted according to the existing power supply safety risk, the analysis and judgment accuracy is improved, and meanwhile, the calculation force requirement is adaptively reduced.
As one embodiment of the present application, the process of the alignment analysis includes:
by the formulaCalculating to obtain a power supply risk value of the ith preset point position +.>；
Wherein N is the number of monitored electrical performance parameters;；/>the j electrical performance parameter value is the i preset point position; />For +.>A maximum value; />For +.>An average value;the method comprises the steps that the maximum value of a jth electrical performance parameter standard curve is the ith preset point in a sampling interval; />The average value of a jth electrical performance parameter standard curve of the ith preset point in the sampling interval is set;
when (when)When (I)>；
When (when)When (I)>；
When (when)When (I)>；
When (when)When (I)>；
A first allowable deviation value for the jth electrical property parameter; />A second allowable deviation value for the jth electrical property parameter; />、/>A fixed early warning value is preset corresponding to the jth electrical performance parameter; />The error allowance value of the j-th electrical performance parameter is; />、/>Is a preset adjustment coefficient; />For +.>The number of time points; />Is the sampling duration; />For the j-th electrical performance parameter at +.>Corresponding reference amounts of the sampling duration; />The j-th electrical performance parameter corresponds to a weight coefficient;
according to the power supply risk valueAnd judging the power supply safety of the ith preset point position.
Through the above technical solution, the present embodiment uses the power supply risk valueJudging the power supply safety risk state corresponding to the preset point position, wherein the power supply risk value +.>Peak out-of-tolerance state according to electrical performance parameters>，Mean value out of tolerance state->Parameter value fluctuation status->And (3) comprehensive judgment is carried out, and comprehensive analysis is carried out by combining the influence degrees of different electrical performance parameters, so that the judgment of potential problems of power supply safety is realized.
The reference amounts referred to in the above formulas are to be notedPreset adjustment coefficient->、Error allowance value of electrical performance parameter>Weight coefficient corresponding to electrical performance parameter>Are obtained after fitting according to empirical test data, and are not described in detail herein; wherein, the standard value->、/>The standard electrical performance parameters obtained according to the analog analysis module are not described in detail herein; in addition, the electrical performance parameter corresponds to a preset fixed pre-warning value +.>、/>Is a preset fixed value when->Or, corresponding power supply risk value +.>Exceeding the threshold range.
As one embodiment of the application, the power supply risk value is usedThe judging process for the power supply safety of the ith point location comprises the following steps:
risk value of power supplyRisk threshold interval with the i-th preset point position +.>And (3) performing comparison:
if it isJudging that the power supply safety problem exists at the ith preset point position, and generating an overhaul instruction;
if it isJudging that the power supply safety risk exists at the ith preset point position, and adjusting a sampling strategy;
if it isAnd judging that the power supply condition of the ith preset point position is normal.
Through the technical scheme, the embodiment adopts the power supply risk valueRisk threshold interval->The risk judgment is carried out by a comparison method, wherein the risk threshold value interval is +.>Obtained by fitting empirical data, thus inWhen the risk is large, an overhaul instruction is generated, and the risk problem is treated in time; if it isJudging that the safety risk exists, and according to the power supply risk value +.>And adjusting the sampling strategy, and further adaptively adjusting the sampling strategy.
As one embodiment of the present application, the sampling strategy adjustment process includes:
if it isIncreasing the sampling frequency and delaying the duration of each sampling interval;
sampling frequency after adjustment of ith preset point position；
Ith preset pointBit-adjusted sample interval duration；
wherein ,is the initial sampling frequency; />The initial sampling interval duration is; />Is the first correction coefficient; />Is the second correction coefficient.
Through the technical scheme, the embodiment passes through the formulaA kind of electronic device with high-pressure air-conditioning systemRespectively adaptively adjusting the sampling frequency and the sampling interval duration, wherein +.>Is the initial sampling frequency; />The initial sampling interval duration is; />Is the first correction coefficient; />For the second correction factor, +.>Is->Are all reasonable according to the difference value of the risk threshold value intervalThe sampling strategy is executed through the adjusted sampling frequency and the sampling interval duration, so that the effect of adaptively reducing the calculation force requirement while improving the analysis and judgment accuracy can be realized.
As an embodiment of the present application, the system further comprises:
the power equipment monitoring module is used for acquiring state information of the power equipment;
the state information comprises temperature data of key points, power data of a power equipment heat dissipation module and operation data of power equipment;
and the analysis and early warning module is used for carrying out safety monitoring on the running state of the power equipment according to the state information.
Through above-mentioned technical scheme, the system in this embodiment has still set up power equipment monitoring module, through the state information who acquires power equipment to carry out safety monitoring to power equipment running state according to state information through analysis early warning module, and then can realize the safety monitoring process to power equipment running state on the train, guarantee the safe and stable operation of power pivot on the train.
As one embodiment of the present application, a process for safely monitoring an operation state of an electrical device includes:
by the formulaCalculating to obtain a real-time device risk value of the electrical device>；
Wherein M is the total number of monitoring points of the power equipment;；/>a real-time temperature value for the kth location point; />Is a first conversion function; />Real-time load values for the electrical equipment; />Is a second transformation function; />Real-time power for the heat dissipation module; />Is a third transformation function; />Is a preset period of time; />The position coefficient of the kth monitoring point position;
x is a judgment function, whenX=b; otherwise, go (L)>；/>Is->An allowable threshold corresponding to the time period; b is an early warning value;
real-time equipment risk valueAnd a preset threshold->And (3) performing comparison:
if it isJudging the operation state of the power equipmentThe state presents a safety risk and generates an overhaul instruction.
Through the technical scheme, the method for safely monitoring the operation state of the power equipment is provided, and the method is characterized by comprising the following steps ofCalculating to obtain a real-time device risk value of the electrical device>The method comprises the steps of carrying out a first treatment on the surface of the Risk value ∈by real-time device>And a preset threshold->The comparison between them is->When the power equipment operation state is judged to have safety risk, and an overhaul instruction is generated, so that the monitoring process of the power equipment operation state is realized, wherein a first conversion function in a formula is ∈>Second transformation function->Third transformation function->Are obtained according to the fitting of the test data under the normal operation state of the power equipment, thus the real-time load value brought into the power equipment is obtainedReal-time power of heat dissipation module>And the monitored real-time temperature value->Further by judgingThe function gives an early warning of the existence of a safety risk.
The preset time period is as followsAccording to the experience data, the setting is selected and can be adaptively adjusted according to specific application power equipment; monitoring the position coefficient of a point location ∈>The selection setting is based on the states of different monitoring points, and is not described in detail herein; in addition, when x=b, the magnitude of the early warning value B ensures the real-time equipment risk value +.>。
Referring to fig. 2, in one embodiment, a method for monitoring power supply safety of a train is provided, where the method completes a monitoring process of power supply safety of the train through the power supply safety monitoring system of the train, and includes:
s1, monitoring the electrical performance parameters of each preset point of a train in real time through an electrical performance parameter monitoring module, and sampling the electrical performance parameters of each preset point of the train according to a sampling strategy by a sampling module;
s2, acquiring real-time control parameters and real-time state parameters of the train through a parameter acquisition module, and acquiring standard electrical performance parameters of each preset point position of the train through a simulation analysis module according to the real-time control parameters and the real-time state parameters of the train;
s3, comparing and analyzing the sampled electrical performance parameters with the standard electrical performance parameters through an analysis and early warning module, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result.
The foregoing describes one embodiment of the present application in detail, but the description is only a preferred embodiment of the present application and should not be construed as limiting the scope of the application. All equivalent changes and modifications within the scope of the present application are intended to be covered by the present application.
Claims (4)
1. A train power safety monitoring system, the system comprising:
the electric performance parameter monitoring module is used for monitoring electric performance parameters of each preset point position of the train in real time;
the sampling module is used for sampling the electrical performance parameters of each preset point position of the train according to a sampling strategy;
the parameter acquisition module is used for acquiring real-time control parameters and real-time state parameters of the train;
the simulation analysis module is used for obtaining standard electrical performance parameters of each preset point position of the train according to the real-time control parameters and the real-time state parameters of the train;
the analysis early warning module is used for comparing the sampled electrical performance parameters with the standard electrical performance parameters, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result;
the sampling strategy comprises the following steps:
acquiring real-time electrical performance parameters according to the initial sampling frequency and the initial sampling interval duration;
performing feedback adjustment on the initial sampling frequency and the initial sampling interval according to the comparison analysis result;
the process of the comparison and analysis comprises the following steps:
by the formulaCalculating to obtain a power supply risk value of the ith preset point position +.>；
Wherein N is the number of monitored electrical performance parameters;；/>the j electrical performance parameter is the i preset pointA numerical value; />For +.>A maximum value; />For +.>An average value;the method comprises the steps that the maximum value of a jth electrical performance parameter standard curve is the ith preset point in a sampling interval; />The average value of a jth electrical performance parameter standard curve of the ith preset point in the sampling interval is set;
when (when)When (I)>The method comprises the steps of carrying out a first treatment on the surface of the When (when)When (I)>The method comprises the steps of carrying out a first treatment on the surface of the When (when)When (I)>The method comprises the steps of carrying out a first treatment on the surface of the When->In the time-course of which the first and second contact surfaces,；
a first allowable deviation value for the jth electrical property parameter; />A second allowable deviation value for the jth electrical property parameter;a fixed early warning value is preset corresponding to the jth electrical performance parameter; />The error allowance value of the j-th electrical performance parameter is;is a preset adjustment coefficient; />For +.>The number of time points; />Is the sampling duration;for the j-th electrical performance parameter at +.>Corresponding reference amounts of the sampling duration; />The j-th electrical performance parameter corresponds to a weight coefficient;
according to the power supply risk valueJudging the power supply safety of the ith preset point position;
according to the power supply risk valueThe judging process for the power supply safety of the ith point location comprises the following steps:
risk value of power supplyRisk threshold interval with the i-th preset point position +.>And (3) performing comparison:
if it isJudging that the power supply safety problem exists at the ith preset point position, and generating an overhaul instruction;
if it isJudging that the power supply safety risk exists at the ith preset point position, and adjusting a sampling strategy;
if it isJudging that the power supply condition of the ith preset point position is normal;
the sampling strategy adjustment process comprises the following steps:
if it isIncreasing the sampling frequency and delaying the duration of each sampling interval;
sampling frequency after adjustment of ith preset point position；
Sampling interval duration after adjustment of ith preset point position；
wherein ,is the initial sampling frequency; />The initial sampling interval duration is; />Is the first correction coefficient; />Is the second correction coefficient.
2. The train power safety monitoring system of claim 1, further comprising:
the power equipment monitoring module is used for acquiring state information of the power equipment;
the state information comprises temperature data of key points, power data of a power equipment heat dissipation module and operation data of power equipment;
and the analysis and early warning module is used for carrying out safety monitoring on the running state of the power equipment according to the state information.
3. The train power safety monitoring system of claim 2, wherein the process of safety monitoring the operating condition of the power equipment comprises:
by the formulaCalculating to obtain a real-time device risk value of the electrical device>；
Wherein M is the total number of monitoring points of the power equipment;；/>a real-time temperature value for the kth location point;is a first conversion function; />Real-time load values for the electrical equipment; />Is a second transformation function; />Real-time power for the heat dissipation module; />Is a third transformation function; />Is a preset period of time; />The position coefficient of the kth monitoring point position;
x is a judgment function, whenX=b; otherwise the first set of parameters is selected,；
is->An allowable threshold corresponding to the time period; b is an early warning value;
real-time equipment risk valueAnd a preset threshold->And (3) performing comparison:
if it isAnd judging that the operation state of the power equipment has safety risk, and generating an overhaul instruction.
4. A train power supply safety monitoring method, wherein the method completes a train power supply safety monitoring process through the train power supply safety monitoring system according to any one of claims 1 to 3, and the method comprises the following steps:
s1, monitoring the electrical performance parameters of each preset point of a train in real time through an electrical performance parameter monitoring module, and sampling the electrical performance parameters of each preset point of the train according to a sampling strategy by a sampling module;
s2, acquiring real-time control parameters and real-time state parameters of the train through a parameter acquisition module, and acquiring standard electrical performance parameters of each preset point position of the train through a simulation analysis module according to the real-time control parameters and the real-time state parameters of the train;
s3, comparing and analyzing the sampled electrical performance parameters with the standard electrical performance parameters through an analysis and early warning module, judging the power supply safety of the train according to the comparison and analysis result, and feeding back and adjusting the sampling strategy according to the judgment result.
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