CN112130020A - High-voltage electrical warning method, device, medium and electronic equipment for rolling stock - Google Patents

Abstract

The invention provides a high-voltage electrical appliance early warning method for a rolling stock, which comprises the following steps: receiving monitoring parameters of the high-voltage electrical appliance; determining the state of the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold value; and displaying the early warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance, so that locomotive operators can intervene in advance according to the early warning information, and the safety problem caused by major accidents of the high-voltage electrical appliance is prevented. The invention also provides a high-voltage electrical appliance early warning device, a medium and electronic equipment of the rolling stock.

Description

High-voltage electrical warning method, device, medium and electronic equipment for rolling stock

technical field

The present invention relates to the technical field of early warning of high-voltage electrical appliances of locomotives, in particular to a method, device, medium and electronic equipment for early warning of high-voltage electrical appliances of locomotives.

Background technique

High-voltage electrical appliances are key components of locomotives and vehicles, and their working status directly affects the running status and safety of locomotives and vehicles. However, during the operation of locomotives and vehicles, high-voltage electrical appliances such as high-voltage voltage transformers are in the monitoring blind area, and their own status is unknown, which is likely to cause major pantograph catenary problems. ACCIDENT. Therefore, the pre-warning method of the high-voltage electrical appliance of the locomotive and vehicle of the present invention is proposed.

It should be noted that the information disclosed in the above Background section is only for enhancing understanding of the background of the invention, and therefore may contain information that does not form the prior art known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide an early warning method, device, medium and electronic equipment for high-voltage electrical appliances of locomotives, so that the status of high-voltage electrical appliances can be determined in real time at least to a certain extent, and the high-voltage electrical appliances can be displayed according to the status of the high-voltage electrical appliances. Early warning information of electrical appliances, so that locomotive operators can intervene in advance according to the warning information to prevent safety problems caused by major accidents of high-voltage electrical appliances.

Other features and advantages of the present invention will become apparent from the following detailed description, or be learned in part by practice of the present invention.

According to a first aspect of the embodiments of the present invention, a method for early warning of a high-voltage electrical appliance for a locomotive and vehicle is provided, including: receiving monitoring parameters of the high-voltage electrical appliance; determining the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold The state of the high-voltage electrical appliance is displayed; the warning information of the high-voltage electrical appliance is displayed according to the state of the high-voltage electrical appliance.

In some embodiments of the present invention, the high-voltage electrical appliance includes an electromagnetic voltage transformer, and the monitoring parameters of the high-voltage electrical appliance include any one or more of the following: the primary side current of the high-voltage electrical appliance, the The secondary side current, the leakage current of the high-voltage electrical appliance, and the excitation current of the high-voltage electrical appliance.

In some embodiments of the present invention, the warning information includes any one or more of the following: warning information about excessive heat generation, warning information about excitation abnormality, warning information about resonance, and warning information about insulation abnormality.

In some embodiments of the present invention, determining the state of the high-voltage electrical equipment according to the monitoring parameters of the high-voltage electrical equipment and a preset threshold value includes: comparing the primary side current of the electromagnetic voltage transformer with a first preset threshold value, Or/and comparing the secondary side current of the electromagnetic voltage transformer with the second preset threshold, the first preset threshold is different from the second preset threshold; When the primary side current of the electromagnetic voltage transformer is greater than or equal to the first preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating; or/and when the secondary side current of the electromagnetic voltage transformer is greater than or equal to the At the second preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating.

In some embodiments of the present invention, displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance includes: displaying the heating of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal heating Excessive warning message.

In some embodiments of the present invention, determining the state of the high-voltage electrical equipment according to the monitoring parameters of the high-voltage electrical equipment and a preset threshold value includes: comparing the excitation current of the electromagnetic voltage transformer with a third preset threshold value; When the excitation current of the electromagnetic voltage transformer is greater than or equal to the third preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal excitation.

In some embodiments of the present invention, displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance includes: displaying the excitation of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being an abnormal excitation Abnormal warning information.

In some embodiments of the present invention, determining the state of the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold value includes: comparing the frequency-divided harmonic current of the electromagnetic voltage transformer with a fourth preset threshold, or/and compare the frequency-doubling harmonic current of the electromagnetic voltage transformer with the fifth preset threshold, the fourth preset threshold is different from the fifth preset threshold, the frequency division The harmonic current and the frequency-doubling harmonic current are the components of the primary side current or the component of the secondary side current; the frequency-division harmonic current of the electromagnetic voltage transformer is greater than or equal to the first When the four preset thresholds are used, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance; or/and when the frequency-doubling harmonic current of the electromagnetic voltage transformer is greater than or equal to the fifth preset threshold, it is determined that the The state of the electromagnetic voltage transformer is abnormal resonance.

In some embodiments of the present invention, displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance includes: displaying the resonance of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal resonance Warning information.

In some embodiments of the present invention, determining the state of the high-voltage electrical equipment according to the monitoring parameters of the high-voltage electrical equipment and a preset threshold value includes: comparing the leakage current of the electromagnetic voltage transformer with a sixth preset threshold value; When the leakage current of the electromagnetic voltage transformer is greater than or equal to the sixth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal insulation.

In some embodiments of the present invention, displaying the warning information of the high-voltage electrical equipment according to the state of the high-voltage electrical equipment includes: displaying the insulation of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal insulation. Abnormal warning information.

According to a second aspect of the embodiments of the present invention, there is provided a high-voltage electrical early warning device for a locomotive and vehicle, including: a receiving module for receiving monitoring parameters of the high-voltage electrical equipment; a determination module for monitoring the high-voltage electrical equipment The parameters and the preset threshold determine the state of the high-voltage electrical appliance; the display module is used to display the early warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance.

In some embodiments of the present invention, the high-voltage electrical appliance includes an electromagnetic voltage transformer, and the monitoring parameters of the high-voltage electrical appliance include any one or more of the following: the primary side current of the high-voltage electrical appliance, the The secondary side current, the leakage current of the high-voltage electrical appliance, and the excitation current of the high-voltage electrical appliance.

In some embodiments of the present invention, the warning information includes any one or more of the following: warning information about excessive heat generation, warning information about excitation abnormality, warning information about resonance, and warning information about insulation abnormality.

In some embodiments of the present invention, the above-mentioned determining module is configured to: compare the primary side current of the electromagnetic voltage transformer with a first preset threshold, or/and compare the secondary current of the electromagnetic voltage transformer The secondary side current and the second preset threshold value, the first preset threshold value and the second preset threshold value are different; the primary side current of the electromagnetic voltage transformer is greater than or equal to the first preset threshold value is used to determine that the state of the electromagnetic voltage transformer is abnormal heating; or/and when the secondary side current of the electromagnetic voltage transformer is greater than or equal to the second preset threshold, it is also used to determine the The state of the electromagnetic voltage transformer is abnormal heating.

In some embodiments of the present invention, the above-mentioned display module is configured to display the overheating warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal heating.

In some embodiments of the present invention, the above determination module is further configured to: compare the excitation current of the electromagnetic voltage transformer with a third preset threshold; when the excitation current of the electromagnetic voltage transformer is greater than or equal to the predetermined threshold When the third preset threshold is set, it is determined that the state of the electromagnetic voltage transformer is abnormal excitation.

In some embodiments of the present invention, the above-mentioned display module is further configured to: display the excitation abnormality warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer as the excitation abnormality.

In some embodiments of the present invention, the above determining module is further configured to: compare the frequency-divided harmonic current of the electromagnetic voltage transformer with a fourth preset threshold, or/and compare the electromagnetic voltage transformer The frequency-doubling harmonic current of the frequency converter is different from the fifth preset threshold value, the fourth preset threshold value is different from the fifth preset threshold value, and the frequency-dividing harmonic current and the frequency-doubling harmonic current are the same. The component in the primary side current or the component in the secondary side current; when the frequency division harmonic current of the electromagnetic voltage transformer is greater than or equal to the fourth preset threshold, determine the electromagnetic voltage transformer The state of the electromagnetic voltage transformer is abnormal resonance; or/and when the frequency-doubling harmonic current of the electromagnetic voltage transformer is greater than or equal to the fifth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance.

In some embodiments of the present invention, the above-mentioned display module is further configured to: display the resonance warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal resonance.

In some embodiments of the present invention, the above determination module is further configured to: compare the leakage current of the electromagnetic voltage transformer with a sixth preset threshold; when the leakage current of the electromagnetic voltage transformer is greater than or equal to the When the sixth preset threshold is set, it is determined that the state of the electromagnetic voltage transformer is abnormal insulation.

In some embodiments of the present invention, the above-mentioned display module is further configured to: display the insulation abnormality warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer as insulation abnormality.

According to a third aspect of the embodiments of the present invention, there is provided an electronic device, comprising: one or more processors; a storage device for storing one or more programs, when the one or more programs are stored by the one When executed by the one or more processors, the one or more processors implement the high-voltage electrical warning method for a rolling stock as described in the first aspect of the above embodiment.

According to a fourth aspect of the embodiments of the present invention, there is provided a computer-readable medium on which a computer program is stored, and when the program is executed by a processor, realizes the high voltage of the rolling stock as described in the first aspect of the above embodiments Electrical early warning method.

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

In the technical solutions provided by some embodiments of the present invention, monitoring parameters of the high-voltage electrical appliance are received, the state of the high-voltage electrical appliance is determined according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold, and then the state of the high-voltage electrical appliance is displayed according to the state of the high-voltage electrical appliance. Early warning information, so that the locomotive operators can intervene in advance according to the early warning information to prevent safety problems caused by major accidents of high-voltage electrical appliances.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort. In the attached image:

FIG. 1 shows a schematic diagram of an exemplary system architecture of a high-voltage electrical warning method for a rolling stock or a high-voltage electrical warning device for a rolling stock to which an embodiment of the present invention can be applied;

FIG. 2 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to an embodiment of the present invention;

FIG. 3 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention;

FIG. 4 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention;

5 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention;

6 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention;

7 schematically shows a block diagram of a high-voltage electrical warning device for a rolling stock according to an embodiment of the present invention;

FIG. 8 shows a schematic structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present invention.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be employed. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the present invention.

The block diagrams shown in the figures are merely functional entities and do not necessarily necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices entity.

The flowcharts shown in the figures are only exemplary illustrations and do not necessarily include all contents and operations/steps, nor do they have to be performed in the order described. For example, some operations/steps can be decomposed, and some operations/steps can be combined or partially combined, so the actual execution order may be changed according to the actual situation.

FIG. 1 shows a schematic diagram of an exemplary system architecture of a high-voltage electrical warning method for a rolling stock or a high-voltage electrical warning device for a rolling stock to which an embodiment of the present invention can be applied.

As shown in FIG. 1 , the system architecture 100 may include a high-voltage electrical appliance monitoring device 101 , a high-voltage electrical appliance 102 of a rolling stock, a network 103 , and a host 104 . Wherein, L1 and L2 are the loads in the high-voltage electrical appliance, and CT1, CT2, CT3, and CT4 are the zero-flux current transformers in the high-voltage electrical appliance monitoring device 101 . In this embodiment, the zero-flux current transformers CT1, CT2, CT3, and CT4 in the high-voltage electrical monitoring device 101 are connected to the high-voltage electrical equipment 102 of the locomotive, so that the zero-flux current transformers CT1, CT2, CT3, CT4 The high-voltage electrical appliances 102 of the rolling stock can be monitored in real time, and the monitoring parameters of the high-voltage electrical appliances 102 of the rolling stock can be obtained in real time. For example, the monitoring parameters of the high-voltage electrical appliances 102 of the rolling stock can be the primary side current of the high-voltage electrical appliances and the secondary side current of the high-voltage electrical appliances. , leakage current of high-voltage electrical appliances, excitation current of high-voltage electrical appliances, etc. In this embodiment, the high-voltage electrical appliance 102 may be an electromagnetic voltage transformer, and the high-voltage electrical appliance monitoring device 101 may be an electromagnetic voltage transformer detection device.

Referring to FIG. 1, a zero-flux current transformer CT1 is connected to the high-voltage side grounding wire of the high-voltage electrical appliance 102 to monitor and obtain the primary side current of the high-voltage electrical appliance 102; The zero-flux current transformer CT2 is used to monitor and obtain the leakage current of the high-voltage electrical appliance 102 (ie primary to secondary insulation leakage current); The current transformer CT3 is used to monitor and obtain the secondary side current of the high-voltage electrical appliance 102 (ie, the load current of the first output winding of the electromagnetic voltage transformer); The magnetic flux current transformer CT4 is used to monitor and obtain the secondary side current of the high-voltage electrical appliance 102 (ie, the load current of the second output winding of the electromagnetic voltage transformer); the voltage output by any winding on the low-voltage side is connected to the high-voltage electrical appliance monitoring device 101 , the high-voltage electrical appliance monitoring device 101 has a built-in voltage signal conversion module, which converts the output signal of the high-voltage electrical appliance 102 into a suitable electrical signal for the monitoring device to measure and use, so as to realize the voltage sampling of the catenary. Each sampled signal is connected to the high-voltage electrical appliance monitoring device 101, and after transformation, amplification, and arithmetic processing, the frequency-divided harmonic current and the frequency-multiplied harmonic current in the current are calculated. The frequency-divided harmonic current and the frequency-multiplied harmonic current are the components of the primary side current of the high-voltage electrical equipment 102 and the secondary side current of the high-voltage electrical equipment 102 . In this embodiment, the excitation current of the high-voltage electrical appliance 102 can be obtained by calculating the high-voltage electrical appliance monitoring device 101 according to the primary side current of the high-voltage electrical appliance 102 and the secondary side current of the high-voltage electrical appliance 102 .

The network 103 is used as a medium for providing a communication link between the high voltage electrical appliance monitoring device 101 and the host 104 . The network 103 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others. In this embodiment, the host 104 is an electronic device, such as a server, and the server 104 may be a server that provides various services. For example, the server 104 can receive the monitoring parameters of the high-voltage electrical equipment 102 of the rolling stock sent by the high-voltage electrical equipment monitoring device 101 , the server 104 can determine the state of the high-voltage electrical equipment 102 according to the monitoring parameters of the high-voltage electrical equipment 102 and the preset threshold, and then The status of the 102 displays the early warning information of the high-voltage electrical appliance, so that the locomotive operator can intervene in advance according to the warning information, so as to prevent the high-voltage electrical appliance from causing a major accident and causing safety problems.

FIG. 2 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to an embodiment of the present invention.

As shown in FIG. 2 , the method for early warning of high-voltage electrical appliances for a rolling stock may include steps S210 to S230.

In step S210, monitoring parameters of the high-voltage electrical appliance are received.

In step S220, the state of the high-voltage electrical appliance is determined according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold.

In step S230, the warning information of the high-voltage electrical appliance is displayed according to the state of the high-voltage electrical appliance.

The method can receive the monitoring parameters of the high-voltage electrical appliances, determine the state of the high-voltage electrical appliances according to the monitoring parameters of the high-voltage electrical appliances and a preset threshold value, and then display the early warning information of the high-voltage electrical appliances according to the status of the high-voltage electrical appliances, so that the locomotive operators can be based on the warning information. Information intervenes in advance to prevent safety problems caused by major accidents in high-voltage electrical appliances.

In an embodiment of the present invention, the above-mentioned high-voltage electrical equipment includes an electromagnetic voltage transformer, and the monitoring parameters of the high-voltage electrical equipment include any one or more of the following: the primary side current of the high-voltage electrical equipment, the secondary side current of the high-voltage electrical equipment, The leakage current of high-voltage electrical appliances and the excitation current of high-voltage electrical appliances. In addition, in this embodiment, the high-voltage electrical appliance may be a grid-side high-voltage electrical appliance of the rolling stock.

In one embodiment of the present invention, the primary side current of the high-voltage electrical appliance, the secondary side current of the high-voltage electrical appliance, the leakage current of the high-voltage electrical appliance, and the excitation current of the high-voltage electrical appliance are stored in real time, so that the monitoring parameters of the high-voltage electrical appliance and the high-voltage electrical appliance can be established. The corresponding relationship between the operating states of electrical appliances forms a database model, which can achieve the purpose of intelligent operation and maintenance under the premise of ensuring the reliable operation of high-voltage electrical appliances.

In an embodiment of the present invention, the above-mentioned warning information includes any one or more of the following: excessive heating warning information, excitation abnormality warning information, resonance warning information, and insulation abnormality warning information.

Fig. 3 schematically shows a flow chart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention.

As shown in FIG. 3 , the above step S220 may include steps S310 and S320.

In step S310, the primary side current of the electromagnetic voltage transformer is compared with the first preset threshold value, or/and the secondary side current of the electromagnetic voltage transformer is compared with the second preset threshold value .

In step S320, when the primary side current of the electromagnetic voltage transformer is greater than or equal to the first preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating; or/and when the electromagnetic voltage transformer is in a state of abnormal heating; When the secondary side current of the voltage transformer is greater than or equal to the second preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating.

The method can accurately and quickly determine the locomotive by comparing the primary side current of the electromagnetic voltage transformer with the first preset threshold, and/or by comparing the secondary side current of the electromagnetic voltage transformer with the second preset threshold Whether there is abnormal heating in the high-voltage electrical appliances of the vehicle, for example, when the primary side current of the electromagnetic voltage transformer is greater than or equal to the first preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating, and/or the electromagnetic voltage transformer is in abnormal heating state. When the secondary side current of the voltage transformer is greater than or equal to the second preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating.

In one embodiment of the present invention, displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance includes: displaying the overheating warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal heating, so that the The locomotive operators intervene in advance according to the warning information of excessive heat to prevent safety problems caused by major accidents of high-voltage electrical appliances.

At present, most of the locomotives use electromagnetic high-voltage voltage transformers. The electromagnetic voltage transformers are exploded and damaged. Most of the reasons are that the internal overcurrent causes heat, and finally the heat collapses and explodes. Major accidents caused by heat can be effectively avoided by the above method.

In one embodiment of the present invention, a laboratory test platform is built to simulate catenary voltages of different frequencies, and tests are performed on new high-voltage electrical appliances and high-voltage electrical appliances with different years of operation, and a preset threshold is set according to the test results. The setting threshold may include a first preset threshold, a second preset threshold, a third preset threshold, a fourth preset threshold, a fifth preset threshold and a sixth preset threshold. Wherein, the first preset threshold, the second preset threshold, the third preset threshold, the fourth preset threshold, the fifth preset threshold and the sixth preset threshold are different from each other.

In an embodiment of the present invention, the primary side current of the electromagnetic voltage transformer is I ₁ , the secondary side current of the electromagnetic voltage transformer is I ₂ , the first preset threshold is C ₁ , and the second preset threshold is C 1 . The threshold is C ₂ . For example, when I ₁ ≥ C ₁ , it is determined that the state of the electromagnetic voltage transformer is abnormal heating, and the warning information of excessive heating of the electromagnetic voltage transformer is displayed. For another example, when I ₂ ≥ C ₂ , it is determined that the state of the electromagnetic voltage transformer is abnormal heating, and the warning information of excessive heating of the electromagnetic voltage transformer is displayed. For another example, when I ₁ ≥ C ₁ and I ₂ ≥ C ₂ , it is determined that the state of the electromagnetic voltage transformer is abnormal heating, and the overheating warning information of the electromagnetic voltage transformer is displayed.

FIG. 4 schematically shows a flow chart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention.

As shown in FIG. 4 , the above step S220 may further include steps S410 and S420.

In step S410, the excitation current of the electromagnetic voltage transformer is compared with a third preset threshold.

In step S420, when the excitation current of the electromagnetic voltage transformer is greater than or equal to the third preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal excitation.

The method can accurately and quickly determine whether the high-voltage electrical equipment of the locomotive has abnormal excitation by comparing the excitation current of the electromagnetic voltage transformer with the third preset threshold. For example, when the excitation current of the electromagnetic voltage transformer is greater than or equal to the third threshold When the three preset thresholds are used, it is determined that the state of the electromagnetic voltage transformer is abnormal excitation.

In one embodiment of the present invention, displaying the warning information of the high-voltage electrical equipment according to the state of the high-voltage electrical equipment includes: according to the state of the electromagnetic voltage transformer being an abnormal excitation, displaying the abnormal excitation warning information of the electromagnetic voltage transformer, so that the locomotive can be Operators intervene in advance according to the abnormal excitation warning information to prevent safety problems caused by major accidents of high-voltage electrical appliances

In an embodiment of the present invention, the excitation current of the electromagnetic voltage transformer is determined according to the primary side current of the electromagnetic voltage transformer and the secondary side current of the electromagnetic voltage transformer. For example, set the excitation current _Im of the voltage transformer, and the third preset threshold value is C ₃ . When _Im ≥ C ₃ , it is determined that the state of the electromagnetic voltage transformer is abnormal excitation, and the abnormal excitation of the electromagnetic voltage transformer is displayed. Warning information.

FIG. 5 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention.

As shown in FIG. 5 , the above step S220 may further include steps S510 and S520.

In step S510, compare the frequency-division harmonic current of the electromagnetic voltage transformer with a fourth preset threshold, or/and compare the frequency-doubling harmonic current of the electromagnetic voltage transformer with the fifth harmonic current Preset threshold.

In step S520, when the frequency-divided harmonic current of the electromagnetic voltage transformer is greater than or equal to the fourth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance; or/and in the When the frequency-doubling harmonic current of the electromagnetic voltage transformer is greater than or equal to the fifth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance.

In this method, after displaying the abnormal excitation warning information of the electromagnetic voltage transformer, the frequency division harmonic current of the electromagnetic voltage transformer can be compared with the fourth preset threshold, and/or the electromagnetic voltage transformer can be compared The frequency multiplied harmonic current of the transformer and the fifth preset threshold can be used to accurately and quickly determine whether the high-voltage electrical appliances of the rolling stock have abnormal resonance. For example, when the frequency-division harmonic current of the electromagnetic voltage transformer is greater than or equal to the fourth preset When setting the threshold, determine that the state of the electromagnetic voltage transformer is abnormal resonance, and/or determine that the state of the electromagnetic voltage transformer is resonance when the frequency-doubling harmonic current of the electromagnetic voltage transformer is greater than or equal to the fifth preset threshold abnormal.

In an embodiment of the present invention, the fourth preset threshold is different from the fifth preset threshold, and the frequency-divided harmonic current and the frequency-multiplied harmonic current are components in the primary side current or in the secondary side current. amount of.

In one embodiment of the present invention, displaying the warning information of the high-voltage electrical equipment according to the state of the high-voltage electrical equipment includes: according to the state of the electromagnetic voltage transformer being abnormal resonance, displaying the resonance warning information of the electromagnetic voltage transformer, so that the locomotive can be run. Personnel intervene in advance according to the resonance warning information to prevent safety problems caused by major accidents of high-voltage electrical appliances.

In one embodiment of the present invention, let the frequency-divided harmonic current of the electromagnetic voltage transformer be the I1 _component , the frequency-doubling harmonic current of the electromagnetic voltage transformer is the I2 _component , and the fourth preset threshold is _C4 , and the fifth preset threshold is C ₅ . For example, when the I _{1 component} ≥ C ₄ , it is determined that the state of the electromagnetic voltage transformer is abnormal resonance, and the resonance warning information of the electromagnetic voltage transformer is displayed. For another example, when the I _{2 component} ≥ C ₅ , it is determined that the state of the electromagnetic voltage transformer is abnormal resonance, and the resonance warning information of the electromagnetic voltage transformer is displayed. For another example, when the I _{1 component is} greater than or equal to C ₄ and the I _{2 component is} greater than or equal to C ₅ , it is determined that the state of the electromagnetic voltage transformer is abnormal resonance, and the resonance warning information of the electromagnetic voltage transformer is displayed. In this embodiment, the frequency-divided harmonic current of the electromagnetic voltage transformer may also be the I _{2 component} , and the frequency-doubling harmonic current of the electromagnetic voltage transformer may also be the I _{1 component} .

FIG. 6 schematically shows a flowchart of a high-voltage electrical warning method for a rolling stock according to another embodiment of the present invention.

As shown in FIG. 6 , the above step S220 may further include steps S610 and S620.

In step S610, the leakage current of the electromagnetic voltage transformer is compared with a fifth preset threshold.

In step S620, when the leakage current of the electromagnetic voltage transformer is greater than or equal to the sixth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal insulation.

The method can accurately and quickly determine whether the high-voltage electrical appliances of the rolling stock have insulation abnormalities by comparing the leakage current of the electromagnetic voltage transformer with the sixth preset threshold. For example, when the leakage current of the electromagnetic voltage transformer is greater than or equal to the sixth When the preset threshold value is five, it is determined that the state of the electromagnetic voltage transformer is abnormal insulation.

In one embodiment of the present invention, displaying the warning information of the high-voltage electrical equipment according to the state of the high-voltage electrical equipment includes: according to the state of the electromagnetic voltage transformer being an abnormal insulation, displaying the early warning information of the insulation abnormality of the electromagnetic voltage transformer, so that the locomotive can be Operators intervene in advance according to the insulation abnormality warning information to prevent safety problems caused by major accidents of high-voltage electrical appliances.

In one embodiment of the present invention, set the excitation current _IL of the voltage transformer, the _sixth preset threshold is _C6 , when _IL≥C6 , it is determined that the state of the electromagnetic voltage transformer is abnormal insulation, showing that the electromagnetic The insulation abnormality warning information of the type voltage transformer, that is, the primary to secondary insulation abnormality warning information.

FIG. 7 schematically shows a block diagram of a high-voltage electrical warning device of a rolling stock according to an embodiment of the present invention.

As shown in FIG. 7 , the high-voltage electrical warning device 200 of the rolling stock includes a receiving module 210 , a determining module 220 and a displaying module 230 .

Specifically, the receiving module 210 is configured to receive the monitoring parameters of the high-voltage electrical appliance.

A determination module 220, configured to determine the state of the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold.

The display module 230 is configured to display early warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance.

The high-voltage electrical early warning device 200 of the rolling stock can receive the monitoring parameters of the high-voltage electrical equipment, determine the state of the high-voltage electrical equipment according to the monitoring parameters of the high-voltage electrical equipment and the preset threshold, and then display the early warning information of the high-voltage electrical equipment according to the state of the high-voltage electrical equipment, so that It can enable the locomotive operators to intervene in advance according to the warning information, and prevent the safety problems caused by major accidents of high-voltage electrical appliances.

According to an embodiment of the present invention, the high-voltage electrical warning device 200 of the rolling stock can be used to implement the high-voltage electrical warning method of the rolling stock described in the embodiments of FIGS. 2 to 6 .

In some embodiments of the present invention, the above determination module 220 is configured to: compare the primary side current of the electromagnetic voltage transformer with a first preset threshold, or/and compare the electromagnetic voltage transformer with The secondary side current and the second preset threshold; when the primary side current of the electromagnetic voltage transformer is greater than or equal to the first preset threshold, it is used to determine that the state of the electromagnetic voltage transformer is heating or/and when the secondary side current of the electromagnetic voltage transformer is greater than or equal to the second preset threshold, it is also used to determine that the state of the electromagnetic voltage transformer is abnormal heating.

In some embodiments of the present invention, the above-mentioned display module 230 is configured to display the overheating warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal heating.

In some embodiments of the present invention, the above determination module 220 is further configured to: compare the excitation current of the electromagnetic voltage transformer with a third preset threshold; when the excitation current of the electromagnetic voltage transformer is greater than or equal to At the fourth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal excitation.

In some embodiments of the present invention, the above-mentioned display module 230 is further configured to: display the excitation abnormality warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer as the excitation abnormality.

In some embodiments of the present invention, the above determination module 220 is further configured to: compare the frequency-divided harmonic current of the electromagnetic voltage transformer with a fourth preset threshold, or/and compare the electromagnetic voltage The frequency doubled harmonic current of the transformer is different from the fifth preset threshold, the fourth preset threshold is different from the fifth preset threshold, and the divided frequency harmonic current and the frequency doubled harmonic current are The component in the primary side current or the component in the secondary side current; when the frequency division harmonic current of the electromagnetic voltage transformer is greater than or equal to the fourth preset threshold, determine the electromagnetic voltage The state of the transformer is abnormal resonance; or/and when the frequency-doubling harmonic current of the electromagnetic voltage transformer is greater than or equal to the fifth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance.

In some embodiments of the present invention, the above-mentioned display module 230 is further configured to: display the resonance warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer being abnormal resonance.

In some embodiments of the present invention, the above determination module 220 is further configured to: compare the leakage current of the electromagnetic voltage transformer with a sixth preset threshold; when the leakage current of the electromagnetic voltage transformer is greater than or equal to At the sixth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal insulation.

In some embodiments of the present invention, the above-mentioned display module 230 is further configured to: display the insulation abnormality warning information of the electromagnetic voltage transformer according to the state of the electromagnetic voltage transformer as insulation abnormality.

Since each module of the high-voltage electrical warning device 200 for a rolling stock according to the exemplary embodiment of the present invention can be used to implement the steps of the exemplary embodiments of the high-voltage electrical warning method for a rolling stock described in the above 2 to FIG. For details not disclosed in the example, please refer to the above-mentioned embodiments of the high-voltage electrical warning method for locomotives and vehicles of the present invention.

It can be understood that, the receiving module 210, the determining module 220 and the displaying module 230 may be combined in one module, or any one of the modules may be split into multiple modules. Alternatively, at least part of the functionality of one or more of these modules may be combined with at least part of the functionality of other modules and implemented in one module. According to an embodiment of the present invention, at least one of the receiving module 210, the determining module 220, and the presenting module 230 may be implemented at least partially as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), System-on-a-chip, system-on-substrate, system-on-package, application specific integrated circuit (ASIC), or any other reasonable way to integrate or package circuits, etc. hardware or firmware, or in software, hardware, and firmware An appropriate combination of these implementations can be implemented. Alternatively, at least one of the receiving module 210, the determining module 220, and the presenting module 230 may be implemented at least in part as a computer program module that, when executed by a computer, may perform the functions of the corresponding module.

Referring next to FIG. 8 , it shows a schematic structural diagram of a computer system 300 suitable for implementing an electronic device according to an embodiment of the present invention. The computer system 300 of the electronic device shown in FIG. 8 is only an example, and should not impose any limitation on the function and scope of use of the embodiments of the present invention.

As shown in FIG. 8, the computer system 300 includes a central processing unit (CPU) 301, which can be loaded into a random access memory (RAM) 303 according to a program stored in a read only memory (ROM) 302 or a program from a storage section 308 Instead, various appropriate actions and processes are performed. In the RAM 303, various programs and data necessary for system operation are also stored. The CPU 301 , the ROM 302 , and the RAM 303 are connected to each other through a bus 304 . An input/output (I/O) interface 305 is also connected to bus 304 .

The following components are connected to the I/O interface 305: an input section 306 including a keyboard, a mouse, etc.; an output section 307 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 308 including a hard disk, etc. ; and a communication section 309 including a network interface card such as a LAN card, a modem, and the like. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to the I/O interface 305 as needed. A removable medium 311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is mounted on the drive 310 as needed so that a computer program read therefrom is installed into the storage section 308 as needed.

In particular, the processes described above with reference to the flowcharts may be implemented as computer software programs according to embodiments of the present invention. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the method illustrated in the flowchart. In such an embodiment, the computer program may be downloaded and installed from the network via the communication portion 309 and/or installed from the removable medium 311 . When the computer program is executed by the central processing unit (CPU) 301, the above-described functions defined in the system of the present application are executed.

It should be noted that the computer-readable medium shown in the present invention may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the above two. The computer readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples of computer readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable Programmable read only memory (EPROM or flash memory), fiber optics, portable compact disk read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. In the present invention, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present invention, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code therein. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device . Program code embodied on a computer readable medium may be transmitted using any suitable medium including, but not limited to, wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more logical functions for implementing the specified functions executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams or flowchart illustrations, and combinations of blocks in the block diagrams or flowchart illustrations, can be implemented in special purpose hardware-based systems that perform the specified functions or operations, or can be implemented using A combination of dedicated hardware and computer instructions is implemented.

The units involved in the embodiments of the present invention may be implemented in a software manner, or may be implemented in a hardware manner, and the described units may also be provided in a processor. Among them, the names of these units do not constitute a limitation on the unit itself under certain circumstances.

As another aspect, the present application also provides a computer-readable medium. The computer-readable medium may be included in the electronic device described in the above embodiments; it may also exist alone without being assembled into the electronic device. middle. The above computer readable medium carries one or more programs, when the one or more programs are executed by an electronic device, the electronic device implements the high-voltage electrical warning method for a rolling stock as described in the above embodiments.

For example, the electronic device may implement as shown in FIG. 2: in step S210, the monitoring parameters of the high-voltage electrical appliance are received. In step S220, the state of the high-voltage electrical appliance is determined according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold. In step S230, the warning information of the high-voltage electrical appliance is displayed according to the state of the high-voltage electrical appliance.

It should be noted that although several modules or units of the apparatus for action performance are mentioned in the above detailed description, this division is not mandatory. Indeed, according to embodiments of the present invention, the features and functions of two or more modules or units described above may be embodied in one module or unit. Conversely, the features and functions of one module or unit described above may be further divided into multiple modules or units to be embodied.

From the description of the above embodiments, those skilled in the art can easily understand that the exemplary embodiments described herein may be implemented by software, or may be implemented by software combined with necessary hardware. Therefore, the technical solutions according to the embodiments of the present invention can be embodied in the form of software products, and the software products can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.) or on the network , which includes several instructions to cause a computing device (which may be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiment of the present invention.

Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the invention which follow the general principles of the invention and which include common knowledge or conventional techniques in the art not disclosed by the invention . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

It should be understood that the present invention is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims (14)

1. a high-voltage electrical warning method for locomotives, is characterized in that, comprises: receiving monitoring parameters of the high-voltage electrical appliance; Determine the state of the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold; Display the warning information of the high-voltage electrical equipment according to the state of the high-voltage electrical equipment. 2 . The method according to claim 1 , wherein the high-voltage electrical appliance comprises an electromagnetic voltage transformer, and the monitoring parameters of the high-voltage electrical appliance include any one or more of the following: the primary side current of the high-voltage electrical appliance. 3 . , the secondary side current of the high-voltage electrical appliance, the leakage current of the high-voltage electrical appliance, and the excitation current of the high-voltage electrical appliance. 3 . The method according to claim 2 , wherein the warning information includes any one or more of the following: excessive heat generation warning information, excitation abnormality warning information, resonance warning information, and insulation abnormality warning information. 4 . 4. The method according to claim 3, wherein determining the state of the high-voltage electrical appliance according to monitoring parameters of the high-voltage electrical appliance and a preset threshold value comprises: Comparing the primary side current of the electromagnetic voltage transformer with the first preset threshold, or/and comparing the secondary side current of the electromagnetic voltage transformer with the second preset threshold, the first The preset threshold is different from the second preset threshold; When the primary side current of the electromagnetic voltage transformer is greater than or equal to the first preset threshold value, it is determined that the state of the electromagnetic voltage transformer is abnormal heating; or/and when the second side of the electromagnetic voltage transformer is When the secondary side current is greater than or equal to the second preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal heating. 5 . The method according to claim 4 , wherein displaying the early warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance comprises: 5 . According to the state of the electromagnetic voltage transformer as abnormal heating, the overheating warning information of the electromagnetic voltage transformer is displayed. 6. The method according to claim 3, wherein determining the state of the high-voltage electrical appliance according to a monitoring parameter of the high-voltage electrical appliance and a preset threshold value comprises: comparing the excitation current of the electromagnetic voltage transformer with a third preset threshold; When the excitation current of the electromagnetic voltage transformer is greater than or equal to the third preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal excitation. 7. The method according to claim 6, wherein displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance comprises: According to the state of the electromagnetic voltage transformer as the excitation abnormality, the excitation abnormality warning information of the electromagnetic voltage transformer is displayed. 8. The method according to claim 7, wherein determining the state of the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold value comprises: Compare the frequency-division harmonic current of the electromagnetic voltage transformer with the fourth preset threshold, or/and compare the frequency-multiplied harmonic current of the electromagnetic voltage transformer with the fifth preset threshold, so The fourth preset threshold is different from the fifth preset threshold, and the frequency-divided harmonic current and the frequency-multiplied harmonic current are components of the primary side current or components of the secondary side current. ; When the frequency-divided harmonic current of the electromagnetic voltage transformer is greater than or equal to the fourth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance; or/and when the electromagnetic voltage transformer When the frequency multiplied harmonic current is greater than or equal to the fifth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal resonance. 9 . The method according to claim 8 , wherein displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance comprises: 10 . According to the state of the electromagnetic voltage transformer as abnormal resonance, the resonance warning information of the electromagnetic voltage transformer is displayed. 10. The method according to claim 3, wherein determining the state of the high-voltage electrical appliance according to a monitoring parameter of the high-voltage electrical appliance and a preset threshold value comprises: comparing the leakage current of the electromagnetic voltage transformer with a sixth preset threshold; When the leakage current of the electromagnetic voltage transformer is greater than or equal to the sixth preset threshold, it is determined that the state of the electromagnetic voltage transformer is abnormal insulation. 11 . The method according to claim 10 , wherein displaying the warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance comprises: 11 . According to the status of the electromagnetic voltage transformer as insulation abnormality, the insulation abnormality warning information of the electromagnetic voltage transformer is displayed. 12. A high-voltage electrical early warning device for a rolling stock, characterized in that it comprises: a receiving module for receiving the monitoring parameters of the high-voltage electrical appliance; a determination module, configured to determine the state of the high-voltage electrical appliance according to the monitoring parameters of the high-voltage electrical appliance and a preset threshold; The display module is used to display the early warning information of the high-voltage electrical appliance according to the state of the high-voltage electrical appliance. 13. An electronic device comprising: one or more processors; and A storage device for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement any one of claims 1 to 11 one of the methods described. 14. A computer-readable medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the method according to any one of claims 1 to 11 is implemented.

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