CN114545074A - Power utilization system abnormity diagnosis method and device and readable storage medium - Google Patents
Power utilization system abnormity diagnosis method and device and readable storage medium Download PDFInfo
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Abstract
The application discloses an electric system abnormity diagnosis method and device and a readable storage medium, and relates to the field of electronic circuits. According to the power consumption system abnormity diagnosis method, whether the power consumption system normally works or not is judged by counting the metering door and whether the secondary short circuit and the power consumption system uncovering time meet preset conditions or not, and compared with the existing abnormity diagnosis method aiming at a specific scene, the power consumption system abnormity diagnosis method has the advantages that data related to the power consumption system abnormity diagnosis method can be obtained on all the power consumption systems basically, specific differences are not shown due to the use of the power consumption systems, and whether various power consumption systems normally work or not can be obtained through the data obtaining, so that the applicability is strong.
Description
Technical Field
The present disclosure relates to the field of electronic circuits, and in particular, to a method and an apparatus for diagnosing an abnormality of an electrical system, and a readable storage medium.
Background
In recent years, with the gradual expansion of the application field of the power utilization information acquisition system and the remarkable improvement of the application effect, the acquisition system can generate various abnormalities such as power utilization, line loss, theft prevention and the like through comparison and analysis of user electric energy data, and a master station and operation and maintenance personnel diagnose and process various abnormal data so as to improve the metering acquisition quality.
The conventional power consumption system abnormity diagnosis method is generally a single diagnosis model, such as a special model for a public basis, namely a household electric meter and the like, a metering basis model for a factory project, a line loss basis model and the like, and the above methods are specific methods for specific scenes, and one or more items of key data of the power consumption system are generally detected only aiming at the functional application of the power consumption system, for example, the power consumption fluctuation of the public basis model is mainly detected, so that the method has strong pertinence but low universality.
In view of the above-mentioned technologies, a general purpose method for diagnosing an abnormality of an electrical system is a problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide an electricity utilization system abnormity diagnosis method so as to solve the problems that the existing electricity utilization system abnormity diagnosis method is single and not high in universality.
In order to solve the above technical problem, the present application provides a method for diagnosing an abnormality of an electrical system, including:
acquiring the opening and closing time of a metering door of an electric system, the secondary short-circuit electric quantity and the uncovering time of an electric energy meter;
if the opening and closing time of a metering door of the electric system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter meet respective corresponding preset conditions, determining that the electric system is normal;
and if any one of the preset conditions is not met, judging that the power utilization system is abnormal.
Preferably, the judging whether the opening and closing time of the metering door of the power utilization system meets a preset condition comprises:
acquiring first opening time and installation time of the metering door;
screening out the second opening time of the metering door from the first opening time except for a normal condition;
determining whether a difference between the second opening time and the installation time is greater than a first threshold;
if not, determining that the opening and closing time of the metering door of the power utilization system is abnormal;
and if so, determining that the opening and closing time of the metering door of the power utilization system is normal.
Preferably, the determining whether the secondary short-circuit electric quantity meets a preset condition includes:
acquiring whether the electric quantity difference value of the power utilization system exceeds a second threshold value within first preset time before and after the secondary short circuit event occurs;
if the electric quantity difference value does not exceed the second threshold value, determining that the electric system is abnormal;
if the electric quantity difference value exceeds the second threshold value, judging whether electric quantity fluctuation in first preset time before and after the secondary short-circuit event occurs is lower than/4 of the second threshold value;
if the electric quantity fluctuation is higher than the second threshold value/4, determining that the secondary short circuit electric quantity of the electric system is abnormal;
and if the electric quantity fluctuation is lower than the second threshold value/4, determining that the secondary short circuit electric quantity of the electric system is normal.
Preferably, the step of judging whether the uncovering time of the electric energy meter meets a preset condition comprises the following steps:
acquiring the latest uncapping event of the electric energy meter, and determining the difference value between the uncapping event time of the electric energy meter and the installation time of the electric energy meter;
judging whether the difference value between the uncapping event time of the electric energy meter and the installation time of the electric energy meter is greater than a third threshold value or not;
if so, the uncovering time of the electric energy meter of the electric system is normal;
and if not, the uncovering time of the electric energy meter of the electric system is abnormal.
Preferably, the method further comprises:
acquiring a state word of a switch button box of the electric energy meter in a third preset time period;
judging whether the difference value between the time for opening the terminal button box of the electric energy meter and the installation time of the electric energy meter is greater than a time threshold value or not according to the state word;
if so, the power utilization system is normal;
and if not, the power utilization system is abnormal.
Preferably, the method further comprises:
and if the same abnormal event occurs twice in the same time period in the power utilization system, judging that the abnormal event occurring for the second time is invalid.
Preferably, the method further comprises:
and when the power utilization system is abnormal, controlling an alarm device to give an alarm.
In order to solve the above problem, the present application further provides an abnormality diagnosis apparatus for an electric system, including:
the acquisition module is used for acquiring the opening and closing time of a metering door of an electric system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter;
the determining module is used for determining that the electric system is normal when the opening and closing time of a metering door of the electric system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter all meet respective corresponding preset conditions;
and the judging module is used for judging that the power utilization system is abnormal when any one of the opening and closing time of the metering door of the power utilization system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter does not meet the corresponding preset condition.
In order to solve the above problem, the present application further provides an abnormality diagnosis apparatus for an electric system, including a memory for storing a computer program;
a processor for implementing the steps of the power utilization system abnormality diagnosis method as described above when executing the computer program.
In order to solve the above problem, the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the power consumption system abnormality diagnosis method as described above.
According to the power consumption system abnormity diagnosis method, whether the power consumption system normally works or not is judged by counting the metering door and whether the secondary short circuit and the power consumption system uncovering time meet preset conditions or not, and compared with the existing abnormity diagnosis method aiming at a specific scene, the power consumption system abnormity diagnosis method has the advantages that data related to the power consumption system abnormity diagnosis method can be obtained on all the power consumption systems basically, specific differences are not shown due to the use of the power consumption systems, and whether various power consumption systems normally work or not can be obtained through the data obtaining, so that the applicability is strong.
The power utilization system abnormity diagnosis device and the readable storage medium provided by the application correspond to the method, and the beneficial effects are as above.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of an abnormality diagnosis method for an electrical system according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an apparatus for diagnosing an abnormality of an electrical system according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of an abnormality diagnosis apparatus for an electric power consumption system according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The application aims to provide an abnormal diagnosis method for a power utilization system, so that the problems that the existing abnormal diagnosis method for the power utilization system is single and not high in universality are solved.
The fusion model is a comprehensive diagnosis model and is fused on the basis of various diagnosis recovery models such as abnormal electricity utilization, abnormal line loss and the like or a partial single model according to the principles of model abstraction layering, fusion application, comprehensive diagnosis and intelligent recommendation. The fusion model is beneficial to combining with a typical service application scene, the accuracy of model diagnosis is improved, the accuracy of abnormal information and fault information diagnosis is further improved, the troubleshooting treatment of various types of abnormalities is completed in the modes of main station intelligent analysis and field maintenance, the operation and maintenance quality and efficiency are practically improved, and the scheme is a series of improvement through the thinking of the fusion model.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Fig. 1 is a flowchart of an abnormality diagnosis method for an electrical system according to an embodiment of the present application, and as shown in fig. 1, the method includes:
s10: and acquiring the opening and closing time of a metering door of the power utilization system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter.
The measurement door is with the switch of the electric quantity meter of electric system, and the opening and closing time of obtaining the measurement door promptly acquires opening time and corresponding closing time of this measurement door, and is not restricted to the number of times of obtaining the opening and closing time of measurement door in this embodiment to and concrete flow etc. of obtaining.
The first short circuit and the second short circuit in the circuit represent different short circuit positions. And cannot be simply understood as a short-circuited once and a short-circuited twice. The transformer is used as a boundary in the circuit, the input end is also called a primary end, and the output end is also called a secondary end. If a short circuit occurs at the input terminal (primary terminal), it is called a primary short circuit; if a short circuit occurs at the output terminal (secondary terminal), it is called a secondary short circuit. It can be understood that, in the embodiment, the number of times of acquiring the secondary short-circuit electric quantity and a specific acquiring process are not limited, where the secondary short-circuit electric quantity mentioned in the embodiment is that when a secondary short-circuit event occurs, the related electric quantity changes.
The electric energy meter is an instrument for measuring electric energy, also called watt-hour meter, fire meter, kilowatt hour meter, and is an instrument for measuring various electric quantities, and under the condition of low voltage (not more than 500V) and small current (tens of amperes), the electric energy meter can be directly connected into circuit to make measurement. Under the condition of high voltage or large current, the electric energy meter cannot be directly connected with a circuit and needs to be matched with a voltage transformer or a current transformer for use. The specific manner of obtaining the cover opening time of the electric energy meter is not limited in the embodiment, and it should be noted that the cover opening time of the electric energy meter in the embodiment refers to a specific time point when the cover of the electric energy meter is opened, for example, two afternoon closings before the day, rather than the duration from opening the cover to closing the cover.
S11: judging whether the opening and closing time, the secondary short-circuit electric quantity and the uncovering time of a metering door of the power utilization system meet respective corresponding preset conditions, if so, entering S12, and if not, entering S13;
it should be noted that, the opening and closing time of the metering door of the power consumption system, the secondary short-circuit power amount, and the corresponding preset conditions of the opening time of the electric energy meter are determined to be different, for example, the opening and closing time of the metering door of the power consumption system may be greater than a certain specific value, in this embodiment, the preset conditions corresponding to the above three determination schemes are not limited, and it is only necessary to satisfy the requirement to determine whether the power consumption system is abnormal.
S12: and judging that the power utilization system is normal.
S13: and judging the power utilization system to be abnormal.
It should be noted that after the power utilization system is determined to be normal or abnormal, the power utilization system is usually reported to the user side for subsequent processing, and in this embodiment, no limitation is imposed on subsequent steps after the power utilization system state determination is completed.
According to the power consumption system abnormity diagnosis method, whether the power consumption system normally works or not is judged by counting the metering door and whether the secondary short circuit and the power consumption system uncovering time meet preset conditions or not, and compared with the existing abnormity diagnosis method aiming at a specific scene, the power consumption system abnormity diagnosis method has the advantages that data related to the power consumption system abnormity diagnosis method can be obtained on all the power consumption systems basically, specific differences are not shown due to the use of the power consumption systems, and whether various power consumption systems normally work or not can be obtained through the data obtaining, so that the applicability is strong.
In the above embodiment, there is no limitation on how to determine whether the opening/closing time of the metering door of the power consumption system satisfies the preset condition, and a preferable scheme is provided herein, where determining whether the opening/closing time of the metering door of the power consumption system satisfies the preset condition includes:
acquiring first opening time and installation time of a metering door;
screening out a second opening time of the metering door except a normal condition from the first opening time;
determining whether a difference between the second opening time and the installation time is greater than a first threshold;
if not, determining that the opening and closing time of a metering door of the power utilization system is abnormal;
and if so, determining that the opening and closing time of the metering door of the power utilization system is normal.
It should be noted that, in this embodiment, the specific metering device and related steps for acquiring the first opening time and the installation time of the metering door are not limited, and may be acquired in real time, or data recorded by the related devices may be called. In this embodiment, the specific value of the first threshold and the corresponding generation manner thereof are not limited, and it can be understood that the first threshold is generally obtained by testing a plurality of metering gate time data and corresponding states of the related power system.
In this embodiment, it judges whether the measurement door of power consumption system is normal through measurement door opening and closing time to limited to judge whether the power consumption system is normal according to this information, and the condition takes place whether or not, and measurement door opening and closing time obtains simply, and easily calculates, has consequently reduced and has detected required technical difficulty and technical cost.
In the above embodiment, the preset condition for determining the secondary short-circuit electric quantity is not limited, and a preferred scheme is provided herein, where determining whether the secondary short-circuit electric quantity satisfies the preset condition includes:
acquiring whether the difference value of the electric quantity of the power utilization system in a first preset time before and after the occurrence of the secondary short-circuit event exceeds a second threshold value;
if the electric quantity difference value does not exceed the second threshold value, determining that the power utilization system is abnormal;
if the electric quantity difference value exceeds a second threshold value, judging whether electric quantity fluctuation in a first preset time before and after the occurrence of the secondary short-circuit event is lower than a second threshold value/4;
if the electric quantity fluctuation is higher than a second threshold value/4, determining that the secondary short-circuit electric quantity of the power utilization system is abnormal;
and if the electric quantity fluctuation is lower than a second threshold value/4, determining that the secondary short-circuit electric quantity of the power utilization system is normal.
It should be noted that, in this embodiment, the relevant time periods are detected before and after the first preset time in the secondary short-circuit event, for example, the corresponding electric quantities of the day before and the day after the event are detected, and a difference is obtained by making a difference between the electric quantities, and in this embodiment, the size of the second threshold is not limited, and for the second preset, it can be understood that, for the first preset time, the extension of two time periods before and after a corresponding event is performed on the basis of the first preset time, for example, the first preset time is the day before and the day after the event occurs, and the second preset time is the two days before and the two days after the event occurs. In this embodiment, specific time points of the first preset time and the second preset time are not limited, and the detection device for acquiring the electric quantity is also not limited, and the inspection by the polling device is preferred. In this embodiment, no limitation is imposed on the specific numerical value of the second threshold and the corresponding generation manner thereof, and it can be understood that the specific numerical value is generally obtained by testing a plurality of secondary short circuit data and corresponding states of the related power consumption systems.
Thereby detect whether normal with the electric system through measuring the secondary short circuit electric quantity in this embodiment, have the abnormal condition of nothing to take place, acquire simply, and easily calculate, consequently reduced and detected required technical difficulty and technical cost.
In the above embodiment, it is not limited to determine whether the cover opening time of the electric energy meter meets the preset condition, and a preferred scheme is provided herein, and determining whether the cover opening time of the electric energy meter meets the preset condition includes:
acquiring the latest uncapping event of the electric energy meter, and determining the difference value between the uncapping event time of the electric energy meter and the installation time of the electric energy meter;
judging whether the difference value between the uncapping event time of the electric energy meter and the installation time of the electric energy meter is greater than a third threshold value or not;
if so, the secondary short-circuit electric quantity of the power utilization system is normal;
and if not, the secondary short-circuit electric quantity of the power utilization system is abnormal.
In this embodiment, the type of the electric energy meter and the device and the method for acquiring the uncovering time of the electric energy meter are not particularly limited, but the uncovering information of the electric energy meter can be acquired by directly acquiring the data of the collecting central station.
Thereby detect whether normal with the electrical system through measuring electric energy meter uncapping time in this embodiment, it takes place to have the abnormal situation, acquires simply, and easily calculates, can directly extract from current device and obtain consequently reduced and detect required technical difficulty and technical cost.
Considering that the corresponding status information can also be obtained through a switch box of the electric energy meter, a preferable scheme is provided, and the method further comprises the following steps:
acquiring a state word of a switch button box of the electric energy meter in a third preset time period;
judging whether the difference value between the time for opening the terminal button box of the electric energy meter and the installation time of the electric energy meter is greater than a time threshold value or not according to the state characters;
if yes, the power utilization system is normal;
if not, the power utilization system is abnormal.
The status word, also called channel status word, is a fixed unit arranged in the main memory for recording the channel and device execution. And a channel state word, namely controlling the specified equipment to complete specified operation after the channel is started, and simultaneously recording the execution conditions of the channel and the equipment in the process of controlling the peripheral equipment by the channel.
Generally, when the above steps are performed, it is necessary to eliminate the normal case of opening the terminal box of the electric energy meter, such as the case of initial installation and normal work order, and at the same time, it is necessary to eliminate the case of logical error of the time for opening the terminal box. The third preset time is not limited in the embodiment, and whether the difference value of the time for opening the terminal button box and the installation of the electric energy meter is larger than the threshold value or not is detected, so that whether the power utilization system is normal or not is judged, the data acquisition is convenient, the scheme is simple and convenient, and the applicability is strong.
In view of the possibility that a plurality of faults may occur in a time period due to the power utilization system, a preferable scheme is proposed herein for the convenience of handling, and the method further comprises:
and if the same abnormal event occurs twice in the same time period in the power utilization system, judging that the abnormal event occurring for the second time is invalid.
It should be noted that the same reference in this document means that the abnormal states are completely the same, for example, the fluctuation of the electric quantity does not conform to the preset range, and the fluctuation values are equal, at this time, only the previous abnormal event needs to be processed, and the second time is generally the same derivation of the first event, so that the labor cost is saved.
Considering that when the power utilization system is abnormal, a user needs to be reminded to perform timely treatment, a preferred scheme is provided, and the method further comprises the following steps:
when the power utilization system is abnormal, the alarm device is controlled to give an alarm.
By giving an alarm, the user is prompted to timely handle the abnormal events, the safety of the power utilization system is guaranteed, and the damage to the power utilization system caused by the abnormal events such as electricity stealing and the like is prevented.
In the above embodiments, the power consumption system abnormality diagnosis method is described in detail, and the present application also provides embodiments corresponding to the power consumption system abnormality diagnosis apparatus. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Fig. 2 is a schematic diagram of an apparatus for diagnosing an abnormality of an electrical system according to an embodiment of the present application, where the apparatus includes:
the acquisition module 10 is used for acquiring the opening and closing time of a metering door of an electric system, the secondary short-circuit electric quantity and the uncovering time of an electric energy meter;
the determining module 11 is used for determining that the power utilization system is normal when the opening and closing time of a metering door of the power utilization system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter all meet respective corresponding preset conditions;
the judging module 12 is configured to judge that the power consumption system is abnormal when any one of the opening and closing time of the metering door of the power consumption system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter does not meet the corresponding preset condition.
Since the embodiment of the apparatus portion and the embodiment of the method portion correspond to each other, reference is made to the description of the embodiment of the method portion for the embodiment of the apparatus portion and the corresponding advantageous effects, which are not repeated herein.
Fig. 3 is a block diagram of an electrical system abnormality diagnosis apparatus according to another embodiment of the present application, and as shown in fig. 3, the electrical system abnormality diagnosis apparatus includes: a memory 20 for storing a computer program;
the processor 21 is configured to implement the steps of the power system abnormality diagnosis method as mentioned in the above embodiments when executing the computer program.
The power system abnormality diagnosis apparatus provided in this embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, or the like.
The processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The Processor 21 may be implemented in at least one hardware form of Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in a wake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a Graphics Processing Unit (GPU) which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 21 may further include an Artificial Intelligence (AI) processor for processing computational operations related to machine learning.
The memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing the following computer program 201, wherein after being loaded and executed by the processor 21, the computer program can implement the relevant steps of the power utilization system abnormality diagnosis method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202, data 203, and the like, and the storage manner may be a transient storage manner or a permanent storage manner. Operating system 202 may include, among others, Windows, Unix, Linux, and the like. The data 203 may include, but is not limited to, data and the like involved in the above-described power system abnormality diagnosis method.
In some embodiments, the power system abnormality diagnosis apparatus may further include a display screen 22, an input/output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
It will be understood by those skilled in the art that the structure shown in fig. 3 does not constitute a limitation of the electrical system abnormality diagnostic apparatus, and may include more or less components than those shown.
The power consumption system abnormality diagnosis device provided by the embodiment of the application comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized: the power consumption system abnormality diagnosis method in the above embodiment.
Since the embodiment of the apparatus portion and the embodiment of the method portion correspond to each other, reference is made to the description of the embodiment of the method portion for the embodiment of the apparatus portion and the corresponding advantageous effects, which are not repeated herein.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Since the embodiment of the readable storage medium portion corresponds to the embodiment of the method portion, reference is made to the description of the embodiment of the method portion for the embodiment of the apparatus portion and the corresponding advantageous effects thereof, which are not repeated herein.
The method, the device and the readable storage medium for diagnosing the abnormality of the power utilization system provided by the application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. An abnormality diagnosis method for a power utilization system, comprising:
acquiring the opening and closing time of a metering door of an electric system, the secondary short-circuit electric quantity and the uncovering time of an electric energy meter;
if the opening and closing time of a metering door of the electric system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter meet respective corresponding preset conditions, determining that the electric system is normal;
and if any one of the preset conditions is not met, judging that the power utilization system is abnormal.
2. The method for diagnosing the abnormality of the power consumption system according to claim 1, wherein the step of determining whether the opening/closing time of the metering door of the power consumption system satisfies a preset condition includes:
acquiring first opening time and installation time of the metering door;
(ii) screening out from the first opening times the second opening times of the metering door except for normal conditions;
determining whether a difference between the second opening time and the installation time is greater than a first threshold;
if not, determining that the opening and closing time of the metering door of the power utilization system is abnormal;
and if so, determining that the opening and closing time of the metering door of the power utilization system is normal.
3. The power consumption system abnormality diagnosis method according to claim 1, wherein determining whether the secondary short-circuit electric quantity satisfies a preset condition includes:
acquiring whether the electric quantity difference value of the power utilization system exceeds a second threshold value within first preset time before and after the secondary short circuit event occurs;
if the electric quantity difference value does not exceed the second threshold value, determining that the electric system is abnormal;
if the electric quantity difference value exceeds the second threshold value, judging whether electric quantity fluctuation in first preset time before and after the secondary short-circuit event occurs is lower than/4 of the second threshold value;
if the electric quantity fluctuation is higher than the second threshold value/4, determining that the secondary short circuit electric quantity of the electric system is abnormal;
and if the electric quantity fluctuation is lower than the second threshold value/4, determining that the secondary short circuit electric quantity of the electric system is normal.
4. The method for diagnosing the abnormality of the power consumption system according to claim 1, wherein the judging whether the cover opening time of the electric energy meter meets a preset condition includes:
acquiring the latest uncapping event of the electric energy meter, and determining the difference value between the uncapping event time of the electric energy meter and the installation time of the electric energy meter;
judging whether the difference value between the uncapping event time of the electric energy meter and the installation time of the electric energy meter is greater than a third threshold value or not;
if so, the uncovering time of the electric energy meter of the electric system is normal;
and if not, the uncovering time of the electric energy meter of the electric system is abnormal.
5. The method for diagnosing the abnormality of the electric system according to any one of claims 1 to 4, further comprising:
acquiring a state word of a switch button box of the electric energy meter in a third preset time period;
judging whether the difference value between the time for opening the terminal button box of the electric energy meter and the installation time of the electric energy meter is greater than a time threshold value or not according to the state word;
if so, the power utilization system is normal;
and if not, the power utilization system is abnormal.
6. The power consumption system abnormality diagnosis method according to claim 5, characterized by further comprising:
and if the same abnormal event occurs twice in the same time period in the power utilization system, judging that the abnormal event occurring for the second time is invalid.
7. The power consumption system abnormality diagnosis method according to claim 6, characterized by further comprising:
and when the power utilization system is abnormal, controlling an alarm device to give an alarm.
8. An electrical system abnormality diagnosis apparatus, comprising:
the acquisition module is used for acquiring the opening and closing time of a metering door of an electric system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter;
the determining module is used for determining that the electric system is normal when the opening and closing time of a metering door of the electric system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter all meet respective corresponding preset conditions;
and the judging module is used for judging that the power utilization system is abnormal when any one of the opening and closing time of the metering door of the power utilization system, the secondary short-circuit electric quantity and the uncovering time of the electric energy meter does not meet the corresponding preset condition.
9. An abnormality diagnosis apparatus for an electric system, comprising a memory for storing a computer program;
a processor for implementing the steps of the power system abnormality diagnosis method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, realizes the steps of the power system abnormality diagnosis method according to any one of claims 1 to 7.
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