CN107844110B - Fault data recording system for current transformer - Google Patents
Fault data recording system for current transformer Download PDFInfo
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- CN107844110B CN107844110B CN201610840543.3A CN201610840543A CN107844110B CN 107844110 B CN107844110 B CN 107844110B CN 201610840543 A CN201610840543 A CN 201610840543A CN 107844110 B CN107844110 B CN 107844110B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0264—Control of logging system, e.g. decision on which data to store; time-stamping measurements
Abstract
The invention discloses a fault data recording system for a current transformer, which is characterized by comprising the following components: a fault record configuration device configured to provide a fault record configuration matching the current converter system configuration; the fault recording device is configured to receive fault data and convert and save the fault data into fault records based on the fault recording configuration. The recording system has the characteristics of universality and platformization, and can meet the requirements of different occasions; the recording system can record different types of data according to the severity of the fault, so that technicians can analyze, position and process the fault more quickly; furthermore, the recording system of the invention analyzes and collates the complete fault data, and the output fault records contain complete fault codes and records of fault data, thereby being capable of helping to directly position faults.
Description
Technical Field
The invention relates to the electrical field, in particular to a fault data recording system for a current transformer.
Background
The converter is an electronic device which is widely applied in the field of electric appliances. The converter can be out of order during debugging and operation. In order to ensure the normal and smooth operation of equipment, when a converter system breaks down, the fault analysis, positioning and processing are required to be rapidly carried out.
In the prior art, during the operation of a converter, an operation fault is usually monitored by a control system of the converter, and fault data is generated and reported when a fault occurs. And analyzing and positioning the fault reason of the transformer system according to the fault data reported by the control system after the fault occurs by a technician.
Because the types of the current transformer are many, the recording formats of fault data are various; meanwhile, the converter systems with different structures are applied to different occasions, the fault types, fault codes and fault quantities of the converter systems are different, and finally generated fault data are different. If the fault reason is analyzed and positioned according to the fault data and the fault is processed, the structure of the converter system also needs to be analyzed in a targeted manner. This results in a great difficulty in implementing and a long time consumption in analyzing and processing the cause of the failure for the failure data.
Therefore, in the face of various converter system structures and application environments, the fault data reported by the converter control system are difficult to analyze and position the fault reasons in time. This greatly affects the safety of the operation of the device. In order to more simply analyze the fault of the converter system and more timely and accurately locate the fault reason of the converter system, a fault data recording system with more intuitive recording results is needed.
Disclosure of Invention
In order to more simply analyze the fault of the converter system and more timely and accurately locate the fault reason of the converter system, the invention provides a fault data recording system for the converter, which comprises:
a fault record configuration device configured to provide a fault record configuration matching the current converter system configuration;
the fault recording device is configured to receive fault data and convert and save the fault data into fault records based on the fault recording configuration.
In one embodiment, the fault recording device comprises:
a fault trigger management module configured to analyze the fault data to determine a fault type;
and the fault record storage module is configured to convert and store the information in the fault data into a fault record according to a record rule corresponding to the fault type, wherein the data type in the fault record is matched with the fault type.
In an embodiment, the fault trigger management module is configured to classify the fault type according to a fault severity corresponding to the fault data and/or a source of the fault data.
In one embodiment, the fault log saving module comprises:
a fault data caching module configured to cache the fault data based on the fault configuration information;
and the fault storage management module is configured to convert and store the fault data cached in the fault data caching module into fault records when the fault records are required to be stored.
In an embodiment, the fault data caching module is configured to perform caching management on the fault data in a manner of a circular queue.
In one embodiment:
the fault trigger management module comprises a delay trigger unit, and the delay trigger unit is configured to determine the fault recording time of the current fault according to the fault data;
and the fault storage management module is configured to convert and store the fault data cached from the fault starting time to the fault recording time in the fault data caching module as a fault record at the fault recording time.
In an embodiment, the failure data caching module is configured to start caching when the failure data starts to be received, and stop caching at the time of the failure record.
In one embodiment:
the fault data caching module is configured to cache non-fault data of the current converter;
the fault storage management module is configured to convert and store non-fault data before the fault starting time and/or after the fault recording time as a part of the fault record.
The recording system has the characteristics of universality and platformization, and can meet the requirements of different occasions; the recording system can record different types of data according to the severity of the fault, so that technicians can analyze, position and process the fault more quickly; furthermore, the recording system of the invention analyzes and collates the complete fault data, and the output fault records contain complete fault codes and records of fault data, thereby being capable of helping to directly position faults.
Additional features and advantages of the invention will be set forth in the description which follows. Also, some of the features and advantages of the invention will be apparent from the description, or may be learned by practice of the invention. The objectives and some of the advantages of the invention may be realized and attained by the process particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a system architecture diagram according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a caching process according to an embodiment of the invention;
FIG. 3 is a timing diagram of a fault logging delay trigger in accordance with one embodiment of the present invention;
FIG. 4 is a system architecture diagram according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a system portion configuration according to an embodiment of the present invention.
Detailed Description
The following detailed description will be provided for the embodiments of the present invention with reference to the accompanying drawings and examples, so that the practitioner of the present invention can fully understand how to apply the technical means to solve the technical problems, achieve the technical effects, and implement the present invention according to the implementation procedures. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
The converter is an electronic device which is widely applied in the field of electric appliances. The converter can be out of order during debugging and operation. In order to ensure the normal and smooth operation of equipment, when a converter system breaks down, the fault analysis, positioning and processing are required to be rapidly carried out.
In the prior art, during the operation of a converter, an operation fault is usually monitored by a control system of the converter, and fault data is generated and reported when a fault occurs. And analyzing and positioning the fault reason of the transformer system according to the fault data reported by the control system after the fault occurs by a technician. However, in the face of various converter system structures and application environments, it is difficult to analyze and locate the cause of the fault in time through fault data reported by a converter control system.
Therefore, the invention provides a fault data recording system for a current transformer. The system analyzes and processes the fault data reported by the transformer control system, and converts and stores the fault data into the fault record which is easier to analyze the fault, thereby greatly reducing the implementation difficulty of directly analyzing the fault data to analyze the fault, enabling the fault reason to be more simple and effective, greatly improving the timeliness and the accuracy of fault reason positioning, and further improving the safety degree of equipment operation.
Because the types of the current transformer are many, the recording formats of fault data are various; meanwhile, the converter systems with different structures are applied to different occasions, the fault types, fault codes and fault quantities of the converter systems are different, and finally generated fault data are different. Specifically, when the converter control system reports fault data, different converter systems have different structures, the number of sensors is different from the number of control objects, and fault codes (indicating fault reasons) are different from the number of faults. For such a situation, in an embodiment of the present invention, a unified configuration rule is adopted to incorporate converter systems with different structures and different application occasions into a unified fault data processing platform
Specifically, as shown in fig. 1, the system includes a fault log configuration apparatus 101 and a fault log apparatus 102. The fault record configuration device 101 is configured to provide a fault record configuration matched with the system structure of the current converter; the fault logging device 102 is configured to receive fault data from the converter control system and convert and save the fault data as a fault log based on the fault logging configuration.
Further, in the present embodiment, the fault recording apparatus 102 includes a fault configuration analysis module 110. The fault configuration parsing module 110 is configured to parse the fault record configuration and convert the fault record configuration into fault record configuration parameters that can be directly used by the fault recording device 102.
The fault log configuration generated by the fault log configuration means 101 has a uniform defined configuration rule. Based on the fault record configuration device 101, the converter systems with different structures and different application occasions can generate fault record configuration according to a unified rule. Therefore, the problem that the fault types, fault codes and fault quantities of different converter systems are different is solved.
The fault recording device 102 adopts a corresponding fault data processing mode based on fault recording configuration, and since fault recording configuration rules and the corresponding fault data processing mode can be predefined, fault data processing for converter systems with different structures and different application occasions can be realized.
Further, in actual fault analysis operations, the specific type of fault data required is different for different faults. If the data type in the fault record does not match the fault type, then completion of the fault analysis is not supported.
Therefore, in an embodiment of the present invention, the fault is classified according to the difference of data requirements during fault analysis, and when the fault data is converted and stored as the fault record, the fault type is determined first, and then the corresponding recording rule is selected according to the fault type, and the fault data is converted and stored as the fault record containing the specific data type.
As shown in fig. 1, the fault recording apparatus includes:
a fault trigger management module 120 configured to analyze fault data reported from the converter control system 100 to determine a fault type;
and the fault record storage module 130 is configured to convert and store the information in the fault data into a fault record according to a record rule corresponding to the fault type, wherein the data type in the fault record is matched with the fault type.
Specifically, when fault analysis is actually performed, the requirement for data mainly depends on the severity of the fault (in brief, a more serious fault requires more detailed and more accurate data for fault analysis; a slight fault often only needs to indicate the existence range of the fault). Therefore, in an embodiment of the present invention, the fault types are divided based on the severity of the fault corresponding to the fault data.
Further, in another aspect, the data type of the fault record also depends on the source of the fault data. Specifically, a converter control system mainly comprises logic control and real-time control (including inversion control and logic control) software, and fault reporting mechanisms and data types of different control modes are different. Thus, in one embodiment of the invention, the fault types are divided based on the source of the fault data.
Specifically, in an embodiment of the present invention, the faults are divided into three categories:
a. minor faults, such as idling, coasting faults, etc.;
b. general faults, such as contactor stuck-open, stuck-in faults, etc.;
c. and serious faults, such as inversion control overvoltage, intermediate direct current overcurrent and the like.
Correspondingly:
a. slight fault does not affect the normal operation of the converter, and only needs to know whether the fault exists in the operation process of the converter;
b. the method comprises the following steps that general faults are reported by logic control, recorded data are from the logic control, the operation period of a logic control program is millisecond level, and the data recording period in fault recording is millisecond level;
c. the serious fault, which is generally reported by real-time control, needs to record real-time control data, the running period of the real-time control is microsecond level, and the data recording period in the fault record is microsecond level.
In an actual operation environment, fault data are sent out by the converter control system when the converter has an operation fault. And further, the failure data is a data stream with a certain duration (i.e. the duration of the failure), and the failure data of a failure is not reported once. For such a situation, in an embodiment of the present invention, the received fault data is buffered by using the buffer, and after the current fault is ended, all the fault data are analyzed and stored uniformly.
Specifically, as shown in fig. 1, the fault record storage module 130 includes:
a fault data caching module 131 configured to cache fault data (from the converter control system 100) based on the fault configuration information (from the fault configuration parsing module 110);
and a fault storage management module 132 configured to convert and save the fault data cached in the fault data caching module 131 into a fault record when the fault record saving is required.
Further, in an embodiment of the present invention, the fault data caching module 131 is configured to perform caching management on fault data in a circular queue. Specifically, as shown in fig. 2, the fault data buffer module 131 performs buffer management in a ring buffer queue manner.
Furthermore, the fault data of a fault is not reported once and is reported at any time along with the fault. And only when the fault is finished, the fault data is reported. In order to determine that complete fault data is acquired when the fault data is converted and stored, in an embodiment of the present invention, a time-delay storage manner is adopted.
And the time delay trigger is used for storing fault data, so that the data after the fault can be completely recorded. That is, when the fault recording device receives the fault data (fault occurrence), the fault data is not immediately converted and stored as the fault record, but the fault data is continuously received first, the time delay is delayed for a period of time, and the conversion and storage are performed when the fault data of the current fault is received.
The timing of the delay triggers is shown in fig. 3. In fig. 3, time t1 is the time of occurrence of the fault, but the fault recording is not started yet, and the fault recording is started only at time t2, and the time interval (t2-t1) is the delay time after the fault occurs, and during this time, the cache of the fault data is still performed.
Specifically, as shown in fig. 1, the fault trigger management module 120 includes a delay triggering unit 121, where the delay triggering unit 121 is configured to determine a fault recording time of a current fault according to fault data. Correspondingly, the fault storage management module 132 is configured to convert and save the fault data cached in the fault data caching module 131 from the fault starting time to the fault logging time as the fault log at the fault logging time.
In order to save cache resources, in an embodiment of the present invention, the fault data caching module is configured to start caching when the fault data starts to be received, and stop caching when the fault data is recorded.
The recording system based on the invention can not only arrange and record the fault data of the converter systems with different system structures and different application environments according to a uniform rule format, but also record the fault data in a grading way according to the grade of the fault after the converter control system has the fault. Compared with the prior art, the recording system provided by the invention can greatly reduce the difficulty of fault analysis, so that technical personnel can more quickly analyze, position and process the fault.
Furthermore, the recording system of the invention analyzes and collates the complete fault data, and the output fault records contain complete fault codes and records of fault data, thereby being capable of helping to directly position faults.
Further, in some operating environments, analyzing faults also requires converter operating data before and/or after the fault occurs. In order to solve this problem, in an embodiment of the present invention, waveform data before and after the occurrence of the fault needs to be recorded to facilitate fault analysis. Specifically, the fault data caching module is configured to cache non-fault data of the current converter; the fault storage management module is configured to convert and save non-fault data before the fault starting time and/or after the fault recording time as a part of the fault record.
The structure of the system according to an embodiment of the present invention will be described next with a specific application example. As shown in fig. 4, in the present embodiment, the converter fault recording system is divided into two parts, a fault recording configuration device and a fault recording device.
The fault recording and configuring device is located in a personal computer and configures fault codes, fault types, data time length required to be recorded after the fault occurs and total fault data time length according to the system structure of the converter. After the configuration is completed, a fault recording configuration file is generated according to a protocol agreed with the fault recording device and then is transmitted to the fault recording device.
The fault recording device is embedded in a converter control system which comprises a Central Processing Unit (CPU) for logic control and a Digital Signal Processor (DSP) for real-time control. As shown in fig. 5, the fault recording apparatus is divided into the following modules:
a. a fault configuration analysis module;
b. a fault trigger management module;
c. a fault data caching module;
d. and a fault storage management module.
The working flow of the fault recording device is as follows:
1. after the power is on, the CPU analyzes a fault record configuration file generated by the fault record configuration device;
2. after the fault record configuration analysis is successful, sending fault record data information to be recorded to the DSP and the fault trigger management module;
3. the logic control and real-time control program writes the fault data into the fault data cache in each operation cycle;
4. the fault triggering management module receives fault data sent by the logic control, determines the current fault type and the time for triggering the fault record in a delayed manner according to the information provided by the fault record configuration file, and informs the fault storage module to record the data after the time for triggering in a delayed manner is up;
5. and the fault storage module stores fault data according to different current fault types.
In the above configuration shown in fig. 5, the failure configuration analysis module includes the following functions:
a. analyzing the fault record configuration file, and acquiring fault information configured in the file, wherein the fault information comprises the following steps: the method comprises the following steps of (1) fault quantity, fault type, total length of fault data, data size needing to be recorded after a fault occurs, a fault record storage path and a fault file name format;
b. sending the analyzed and obtained fault information to a fault data cache module (respectively positioned in a DSP (digital signal processor) and a CPU (central processing unit)) and a fault trigger management module;
the fault trigger management module comprises the following functions:
a. receiving a fault source of the logic program, judging the current fault type according to the information of the fault record configuration file, and determining the source of the fault data needing to be recorded currently;
b. and triggering fault recording in a delayed manner, so as to ensure that the data after the fault can be completely recorded.
The fault data caching module comprises the following functions:
a. receiving fault data of logic control and real-time control;
b. and after the fault is triggered, receiving a fault storage management command, stopping caching data and transmitting the fault data to the storage management module.
The fault storage management module comprises the following functions:
a. generating a file name according to fault file name information in a fault configuration file;
b. and receiving fault data of the fault cache management module and storing the fault data into a file.
Further, in the embodiment shown in fig. 5, the fault data between the CPU and the DSP is transmitted through a Dual Port Random Access Memory (DPRAM). In other embodiments of the present invention, DPRAM may be replaced by other devices such as DDR (random access memory).
Further, in the embodiment shown in FIG. 5, the failure file is finally present in the file. In other embodiments of the present invention, the fault file may be written directly to FLASH memory.
Further, in the embodiment shown in fig. 5, the fault log configuration finally generates a fault configuration file, which is then parsed by the fault logging device. In other embodiments of the invention, the configuration file may not be generated, but the file content may be transmitted directly to the fault recording device by the communication protocol.
In conclusion, the recording system has the characteristics of universality and platformization, and can meet the requirements of different occasions; the recording system can record different types of data according to the severity of the fault, so that technicians can analyze, position and process the fault more quickly; furthermore, the recording system of the invention analyzes and collates the complete fault data, and the output fault records contain complete fault codes and records of fault data, thereby being capable of helping to directly position faults.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. There are various other embodiments of the method of the present invention. Various corresponding changes or modifications may be made by those skilled in the art without departing from the spirit of the invention, and these corresponding changes or modifications are intended to fall within the scope of the appended claims.
Claims (5)
1. A fault data logging system for a current transformer, the system comprising:
a fault record configuration device configured to provide a fault record configuration matching the current converter system configuration;
a fault logging device configured to receive fault data and convert and save the fault data as a fault log based on the fault logging configuration, wherein the fault logging device comprises: the fault record storage module is configured to convert and store information in the fault data into fault records according to a record rule corresponding to the fault type, wherein the data type in the fault records is matched with the fault type;
wherein, the fault record storage module comprises: a fault data caching module configured to cache the fault data based on the fault configuration information; the fault storage management module is configured to convert and store the fault data cached in the fault data caching module into fault records when the fault records need to be stored;
the fault data caching module is configured to perform caching management on the fault data in a mode of adopting a ring queue;
the fault trigger management module comprises a delay trigger unit, and the delay trigger unit is configured to determine the fault recording time of the current fault according to the fault data;
and the fault storage management module is configured to convert and store the fault data cached from the fault starting time to the fault recording time in the fault data caching module as a fault record at the fault recording time.
2. The system of claim 1, wherein the fault logging device further comprises:
a fault trigger management module configured to analyze the fault data to determine a fault type.
3. The system of claim 2, wherein the fault trigger management module is configured to classify the fault type according to a fault severity corresponding to the fault data and/or a source of the fault data.
4. The system of claim 1, wherein the failure data caching module is configured to start caching when the failure data is received and stop caching at the time of failure logging.
5. The system according to claim 1 or 4, wherein:
the fault data caching module is configured to cache non-fault data of the current converter;
the fault storage management module is configured to convert and store non-fault data before the fault starting time and/or after the fault recording time as a part of the fault record.
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| CN112558588A (en) * | 2020-12-04 | 2021-03-26 | 中国航空工业集团公司成都飞机设计研究所 | Fault accompanying data generation method for fault diagnosis |
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