CN116593926A - Portable information system power supply comprehensive performance detection method and platform - Google Patents
Portable information system power supply comprehensive performance detection method and platform Download PDFInfo
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Abstract
The application discloses a portable information system power comprehensive performance detection method and a platform, wherein the detection method comprises the following steps: classifying power supply equipment in an information system, and respectively establishing a corresponding digital visual model for each type of power supply equipment; creating an electric connection model for detecting the power supply and distribution power quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment in the digital visual model so as to acquire the working parameters of the power supply equipment; and inputting the collected working parameters into a corresponding digital visual model, carrying out data fusion and characteristic value extraction on the relevant working parameters, and outputting the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of corresponding power supply equipment through a comprehensive performance detection module. The application realizes the safe and reliable comprehensive performance detection of the information system power supply equipment, can be completed without power failure, provides reliable basis for overhaul and fault early warning, improves overhaul efficiency and reduces overhaul cost.
Description
Technical Field
The application belongs to the technical field of electrical equipment, and relates to a method and a platform for detecting the comprehensive performance of a portable information system power supply.
Background
The information system power supply equipment is core equipment for guaranteeing normal operation of the information system, and provides safe, reliable and stable power supply and distribution guarantee for communication equipment in the information system. The power supply equipment in the information system mainly refers to power supply equipment of power electronic technology which is widely applied in the information system, and comprises power transformation equipment, a switching power supply, a UPS (uninterrupted Power supply), a comprehensive power supply, a backup power supply and the like.
The large information systems can be divided into a ground fixed information system, an airborne information system and an information system temporarily built in the field, and the ground fixed information system is analyzed from the application environment of the three large information systems, and because an independent communication machine room is arranged in the ground fixed information system, a power environment system in the machine room is relatively stable, the fault rate of power supply and distribution power supply equipment of the ground fixed information system is low and is generally not more than 30%. The airborne information system is designed to realize air and ground maneuvering, has high requirements on the power supply equipment of the information system, has great detection difficulty, and enables a user to feed back the failure rate of the power supply equipment of the airborne information system to exceed 70%. The failure rate of power supply equipment is over 50% due to objective factors such as the use environment and the like of an information system temporarily built in the field.
The current information system power supply main stream power supply equipment belongs to second generation non-intelligent power supply equipment, if the characteristics of self-checking and remote monitoring are not provided, the problem of 70% of daily information system problems fed back by a user belongs to the fault of the information system power supply equipment, the daily use maintenance and detection workload is large, the fault positioning difficulty is high, the maintenance tool is carried out by an independent detection instrument, the maintenance personnel manually judges and analyzes fault points mainly according to experience and single instrument test data results, the efficiency is low, the maintenance cost is high, and the safety, the reliability and the maintainability of the maintenance of the information system power supply equipment are difficult to ensure; the following objective reasons exist in the current information systems:
1. the partial power supply equipment is customized together with the communication equipment, and the standards of the partial power supply equipment are not uniform, the variety is multiple, and the brands and the models are miscellaneous;
2. part of power supplies cannot meet special requirements of field and airborne information systems due to poor environmental adaptability, safety and reliability;
3. the key devices in the power supply equipment are not domestic, and cannot be overhauled on site in time after faults, so that the real-time requirement of an information system cannot be met;
4. the power supply system formed by the power supply equipment cannot perform health evaluation and life early warning analysis, lacks systematic comprehensive detection, evaluation and analysis tools and means, and is completely dependent on personal experience of maintenance personnel for maintenance;
5. the quality of power supply, the efficiency of power supply, safety precaution, fault location, maintenance advice, lightning protection grounding, insulation characteristics of power supply and distribution systems and the like of the information system power supply equipment cannot be quantitatively and comprehensively detected and analyzed;
6. the personnel maintenance log can not be digitally stored and stored in a large data mode, and is manually recorded by manpower, low in efficiency and the like.
The detection of key power supply equipment in the power supply and distribution of the information system at present has a great deal of defects which are increasingly highlighted, and the detection has become a key problem which must be solved for the rapid development of the information system in a serious system in the future.
Disclosure of Invention
In order to solve the problems, the application provides the portable information system power supply comprehensive performance detection method, which realizes the safe and reliable comprehensive performance detection of the information system power supply equipment, can be completed without power failure, provides reliable basis for overhaul and fault early warning, improves overhaul efficiency and reduces overhaul cost.
Another object of the present application is to provide a portable information system power comprehensive performance detection platform.
The application adopts the technical scheme that the method for detecting the comprehensive performance of the portable information system power supply comprises the following steps:
s1, classifying all power supply devices in an information system, wherein each type of power supply device respectively establishes a corresponding digital visual model, and the digital visual model comprises a power supply device type, a rated working parameter, a limit working parameter, interface information, a communication protocol and a detection index;
s2, an electric connection model for detecting the power supply and distribution electric energy quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment is established in the digital visual model so as to acquire the working parameters of the power supply equipment;
s3, inputting the collected working parameters into a corresponding digital visual model, carrying out data fusion and characteristic value extraction on the relevant working parameters, and outputting the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of corresponding power supply equipment through a comprehensive performance detection module.
Further, in the S1, the power supply device includes seven types, which are respectively: commercial power, generating set, ATS cabinet or row first cabinet, switching power supply, UPS, lightning protection/ground/insulating/electric leakage equipment, battery.
Further, in the step S3, the method for detecting the quality of the power supplied and distributed power includes: collecting working parameters through an electric connection model of power supply and distribution electric energy quality: voltage, current, active power, reactive power, apparent power, voltage deviation, frequency deviation of the ac power supply device, and voltage, current, power, and ripple of the dc power supply device; comparing each working parameter with the corresponding rated working parameter by combining the corresponding digital visual model, and carrying out weighted summation on the comparison result according to the corresponding weight to obtain the power supply quality of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
Further, in the step S2, the method for detecting power supply and distribution efficiency includes: collecting working parameters through an electric connection model of power supply and distribution efficiency: the alternating current power supply equipment supplies power to the main circuit and multiple harmonics, active power, reactive power, apparent power, voltage deviation, frequency deviation and phase deviation of each branch circuit; and the direct current power supply equipment supplies power to the main circuit and the voltage, current, power and ripple waves of each branch circuit; comparing each working parameter with the corresponding rated working parameter by combining the corresponding digital visual model, and carrying out weighted summation on the comparison result according to the corresponding weight to obtain the comprehensive power supply and distribution efficiency of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
Further, in the step S3, the method for detecting the power supply and distribution safety includes: the electric connection model comprises a lightning grounding detection module which is respectively connected with a temperature acquisition module, a grounding resistance acquisition module, a leakage sampling module and an insulation resistance acquisition module; comparing the collected working temperature, grounding resistance, leakage current and insulation resistance of the corresponding power supply equipment with rated working parameters by combining the corresponding digital visual model, and carrying out weighted summation on comparison results according to the weights corresponding to lightning protection, grounding and insulation to obtain comprehensive safety of power supply and distribution; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
Further, in the step S3, the method for detecting the power supply and distribution security capability includes: collecting the internal resistance of a storage battery, the voltage of a storage battery pack and the output voltage of a switching power supply of a direct-current power supply system through an electric connection model with power supply and distribution ensuring capability; and emergency starting time, oil reserve, output alternating voltage, alternating current, active power and reactive power of the generator set; comparing each working parameter with the rated working parameter by combining the corresponding digital visual model, and carrying out weighted summation on the comparison result according to the corresponding weight to obtain the power supply and distribution efficiency of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
Further, the step S3 further includes: and carrying out weighted average on weighted results corresponding to the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability according to weights corresponding to different types of power supply equipment, obtaining the comprehensive health performance of the power supply of the information system, and determining the weights corresponding to the different types of power supply equipment according to the big data monitoring result of long-term continuous operation of the information system.
Further, the total weight value of the switching power supply, the UPS, the generator set, the storage battery and the lightning protection/grounding/insulation/leakage equipment is 80%; the total weight value of the commercial power, the ATS cabinet or the train head cabinet accounts for 20 percent.
A portable information system power comprehensive performance detection platform, comprising:
the equipment model is used for establishing a digital visual model of power equipment involved in the information system;
the connection model is used for establishing a connection relation for the digital visual model of the power supply equipment and comprises an electric connection model for detecting the power supply and distribution power quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment;
the index system is used for storing detection result indexes of the digital visual model of the power supply equipment, and comprises standard performance indexes and actual measurement indexes;
the detection scheme is used for matching the electric connection model with corresponding indexes to realize local detection and global detection;
and the comprehensive performance detection module is used for outputting the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the corresponding power supply equipment of the information system.
Further, the method also comprises detection engineering, detection scheduling and detection report; the detection engineering provides information system power supply equipment test standard test templates, technical indexes, functional requirements and standard specifications for users; the detection scheduling provides a matched detection equipment scheduling mode required by the detection process for the user.
The beneficial effects of the application are as follows:
1. according to the application, power failure is not needed, the working parameters of the power supply equipment are collected through parallel operation detection engineering and various intelligent sensors under the condition that the information system works normally, and the comprehensive detection result is given according to the industry standard/national standard, so that the continuous operation of the user information system is ensured; the maintenance efficiency is improved, the power supply quality, the power supply and distribution efficiency, the safety and the endurance of the power supply equipment of the information system are guaranteed to meet the real-time requirements of normal operation of the information system, and the hidden trouble of serious interruption of the information system is avoided.
2. The application classifies power supply equipment (low-voltage user side after a transformer) of an information system, establishes a digital visual model, an electric connection model and comprehensive performance detection for each type of power supply equipment, compares each working parameter with a rated working parameter, and obtains the comprehensive performance of the corresponding power supply equipment according to industry standards and big data monitoring results of long-term continuous operation of the information system without completely relying on single-point detection results. Fully associating working parameters such as lightning protection, grounding, insulation and the like with safety indexes of power supply equipment; the linkage detection is established for the diesel generator set, the storage battery, the comprehensive power supply and the UPS, comprehensive consideration is given to the comprehensive detection result of the performance of the power supply and distribution equipment of the information system, the accuracy is higher, the basis is provided for the early intervention and the processing, and the health degree of the power supply of the information system is improved.
3. The whole detection process is automatically carried out without manual intervention, so that the dependence on the speciality and experience of the maintainer is reduced.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of an embodiment of the present application.
FIG. 2 is a schematic diagram of a power comprehensive performance detection platform of an information system according to an embodiment of the present application.
Fig. 3 is a block diagram of an electrical connection for power quality/power efficiency detection in accordance with an embodiment of the present application.
Fig. 4 is a block diagram of lightning protection ground detection of a power supply device of an information system according to an embodiment of the present application.
Fig. 5 is a block diagram of power supply capability detection of a power supply device of an information system according to an embodiment of the present application.
Fig. 6 is a complete electrical topology of the information system power supply and distribution equipment according to an embodiment of the present application.
FIG. 7 is a flowchart of an implementation of the comprehensive performance detection module according to an embodiment of the present application.
FIG. 8 is a performance testing electrical topology of an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The performance detection of the information system power supply comprises performance indexes such as power supply efficiency, power supply quality, power supply capacity, lightning protection, insulation and the like of the power supply equipment, the weight corresponding to different types of the power supply equipment is determined through analysis of tested data and according to industry standards/national standards and big data monitoring results of long-term continuous operation of the information system, the comprehensive performance of the information system power supply is detected, and reliable basis is provided for fault positioning and refurbishment schemes of the power supply equipment. The comprehensive detection platform for the information system power supply can be used for comprehensively detecting various information system power supply devices such as a ground fixed information system, an airborne information system, an information system temporarily built in the field and the like, and comprises the guarantee capacity and the health state of alternating current power supply devices, direct current power supply devices, backup power supply devices, lightning protection grounding devices, insulation protection devices and the like.
In the case of example 1,
a portable information system power comprehensive performance detection platform, as shown in figures 1 and 2, comprises an equipment model, a connection model, an index system, a comprehensive performance detection model, a detection scheme, a detection project, a detection schedule, a detection report, an enterprise cloud and the like. Classifying power supply equipment (low-voltage user side after a transformer) of an information system, and establishing an equipment model, a detection connection electric model and a comprehensive performance detection model for each type of power supply equipment. The power supply device includes seven types, respectively: the utility power, the diesel generating set, the ATS cabinet or the train head cabinet, the switching power supply, the UPS, the lightning protection/grounding/insulation/leakage equipment and the storage battery cover power transformation equipment, the switching power supply, the UPS power supply, the comprehensive power supply, the backup power supply and the like in the information system power supply equipment.
The equipment model is used for establishing a special equipment digital visual model for the power equipment involved in the information system, wherein the digital visual model comprises the type of the power equipment, rated working parameters, limit working parameters, interface information, a communication protocol and detection indexes. The method is characterized in that the method comprises the following steps of: description field of power supply equipment type, national/industry standard and factory index; the interface information of the power supply equipment comprises interface physical specifications, compliance with industry standards and physical topological connection relations, such as CAN, ethernet, 485/232 and the like; the communication protocol of the power supply device includes: TCP/IP protocol, IPX/SPX protocol, netBEUI protocol, mod-bus protocol, etc.; defining working parameters and threshold indexes of power supply equipment; the power supply equipment daily maintenance advice expert database and an evaluation algorithm; software maintenance management log and maintenance database management; and (5) establishing a test model and a test flow.
The connection model establishes a set of connection relations for the information system power supply equipment model and comprises an electric connection model for detecting the power supply and distribution power quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment so as to collect the working parameters of the power supply equipment.
The index system is a detection result index item of the equipment model and comprises a large data set of national standard definition equipment model standard performance indexes and actual detection indexes.
The detection scheme is a big data aggregate for connecting the model and the index system, can flexibly form an equipment detection scheme according to actual application requirements, can be a local and global detection scheme, and is convenient for overhaulers to rapidly locate faults and ensure the detection of the overall performance.
The evaluation scheme is used for giving out the monitoring evaluation of the whole service life of the detection power supply equipment according to national standards and actual detection indexes by analyzing the detected big data statistical algorithm, and can be flexibly configured according to the actual application of users.
The detection engineering provides the information system power supply equipment test standard test template, technical indexes, functional requirements and standard specifications for users, is convenient for the users to rapidly import the objects to be detected, and can be flexibly configured and optimized according to the practical application of the users.
And (3) detecting and scheduling, namely providing a matched detection equipment scheduling strategy such as a load, a standard source and the like required by a detection process for a user.
The system maintenance provides the authorization management, the function management, the big data management and the like of the detection items and the content in the use process of the user, and is convenient for the user to review the detection log, the detection report, the detection content and the like in real time.
The enterprise cloud is mainly used for providing a service platform for storing, managing, inquiring, downloading a detection report and the like for the comprehensive detection software system.
In the case of example 2,
the method for detecting the comprehensive performance of the portable information system power supply is characterized by comprising the following steps of:
s1, classifying all power supply devices in an information system, and respectively establishing a corresponding digital visual model of each type of power supply device, wherein the digital visual model comprises a power supply device type, a rated working parameter, a limit working parameter, interface information, a communication protocol and a detection index.
S2, an electric connection model for detecting the power supply and distribution electric energy quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment is created in the digital visual model so as to acquire the working parameters of the power supply equipment.
The electric connection model for the power quality and the power supply and distribution efficiency of the power supply and distribution is shown in fig. 3, and comprises a three-phase power quality recorder (F1760), wherein the input end of the three-phase power quality recorder is respectively connected with an alternating current sampling module and a direct current sampling module, the alternating current sampling module is connected with an alternating current bus output by a commercial power or diesel generating set, and the commercial power and the diesel generating set are connected with the alternating current bus through an ATS cabinet; the alternating current bus is converted into a direct current bus through the switch power cabinet, and the direct current sampling module is connected with the direct current bus. The method comprises the steps of collecting steady-state data of alternating-current and direct-current power supply quality of power equipment of an information system, wherein collected working parameters comprise: voltage, current, active power, reactive power, power factor (apparent power), voltage deviation, frequency deviation of the ac power supply device, and voltage, current, power, and ripple of the dc power supply device.
The power supply and distribution safety electric connection model, as shown in figure 4, comprises a lightning protection grounding detection module which is respectively connected with a temperature acquisition module, a grounding resistance acquisition module, a leakage sampling module and an insulation resistance acquisition module; the leakage sampling module is used for collecting leakage current of the ATS cabinet; the temperature acquisition module is used for acquiring working temperatures of a generator set, a UPS, a high-frequency switching power supply, a storage battery, safety power supply protection equipment and the like, wherein the temperature is one of working parameters which are required to be sensed and acquired in seven kinds of power supply equipment and is one of core working parameter indexes.
As shown in fig. 5, the electric connection model of the power supply and distribution guarantee capability includes working parameters that need to be collected for independent power supply capability of the storage battery: the internal resistance of the storage battery, the voltage of the storage battery pack and the voltage of the switching power supply 48V are output. Working parameters of the generator set, which need to be collected, are as follows: emergency start time, oil reserve, output ac voltage, ac current, active power and reactive power. The detection results of the F1760 power quality analyzer in fig. 5 include: the detection results of alternating current characteristics (such as voltage deviation, current, frequency deviation, phase deviation, voltage waveform deformity, voltage and current asymmetry, three-phase imbalance and the like) and interference characteristics (such as harmonic waves, direct current in an alternating current network and the like) give a health percentage of specific power supply quality, such as 95%. The alternating current acquisition module acquires voltage, current, active power, reactive power, power factors (apparent power), voltage deviation, frequency deviation, phase deviation and the like of alternating current power supply equipment. The comprehensive tester for the generator detects emergency starting time, oil reserve quantity, output alternating voltage, alternating current, active power and reactive power. The direct current acquisition module acquires voltage, current, power and ripple waves of the direct current power supply equipment.
S3, inputting the collected working parameters into a corresponding digital visual model, carrying out data fusion and characteristic value extraction on the relevant working parameters, outputting the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of corresponding power supply equipment through an evaluation algorithm model, and obtaining the comprehensive performance of the information system power supply. Further, the weighted results corresponding to the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability are weighted and averaged according to the weights corresponding to the different types of power supply equipment, and the comprehensive health performance of the information system power supply is obtained.
The power supply quality detection method of the power supply equipment comprises the following steps: combining the corresponding digital visual model, comparing the voltage, current, active power, reactive power, apparent power, voltage deviation and frequency deviation of the alternating current power supply equipment or the voltage, current, power and ripple of the direct current power supply equipment with corresponding working parameters respectively, and carrying out weighted summation on comparison results according to corresponding weights to obtain the power supply quality of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system. In the embodiment, F1760 of Fulu's is adopted as a main body of the performance detection module, and the comprehensive performance detection of power supply power quality, power supply efficiency, power factors, active power, reactive power and the like of the alternating-current equipment is realized by matching with sensing equipment of a voltage acquisition and current transformer, so that a health evaluation result is obtained.
The power supply efficiency detection method of the power supply equipment comprises the following steps: combining a corresponding digital visual model, and carrying out multiple harmonic waves, active power, reactive power, apparent power, voltage deviation, frequency deviation and phase deviation on an alternating current power supply main circuit and each branch circuit; or the voltage, current, power and ripple of the power supply trunk and each branch of the direct-current power supply equipment are respectively compared with corresponding working parameters, and the comparison results are weighted and summed according to corresponding weights to obtain the comprehensive power supply and distribution efficiency of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system, and overhauling and maintenance of the power supply system are facilitated for overhauling staff.
The detection method of power supply and distribution safety comprises the following steps: and combining a corresponding digital visual model, comparing the working temperatures, grounding resistance, leakage current and insulation resistance acquired by various intelligent sensors with rated working parameters, weighting and summing comparison results according to weights corresponding to lightning protection, grounding and insulation to obtain comprehensive safety of power supply and distribution, providing safety early warning and fault positioning, and improving working efficiency of overhaul maintainers. The corresponding weight is determined according to industry standard and big data monitoring result of long-term continuous operation of the information system.
The lightning protection grounding device comprises lightning protection equipment, a lightning rod, grounding equipment and a grounding wire, and the technical index and the working parameter of the lightning protection grounding system are differentiated to a certain extent according to the size of the detected lightning protection grounding system. The detection method of the lightning protection grounding system comprises the following steps: detecting the effectiveness of the lightning protection device, and connectivity of a lightning arrester, pins, a grounding device and the like; detecting the effective grounding resistance of the lightning grounding system; and detecting whether the ground insulation resistance of the lightning protection system is within an allowable range, whether the ground system is safe, and whether the instantaneous clamping voltage value changes. For the signal lightning protection system of the information system, whether the connection resistance belongs to the allowable value of the parameter or not is detected, whether the instantaneous clamping voltage value changes or not is detected, and the normal value of the ground insulation resistance is detected.
The specific implementation method comprises the following steps: confirming a grounding lead or an equipotential connection box of a lightning protection grounding grid, inserting two test piles of 0.4 meter into the soil of a power supply system test point, wherein one test pile is 20m away from the test point, the other test pile is 40m away from the test point, soil is needed to be arranged around the test point by 42m, connecting two ends of the test pile to a port of a detection device, and detecting a test model through an integrated lightning protection grounding resistance test module inside the test device; the smaller the ground resistance value, the better. When the design requirement exists, judging according to an index preset by the design requirement, and when the design requirement does not exist, the preset value of the grounding resistor is smaller than 4Ω. The lightning protection devices and the grounding terminals with different capacities are deployed according to construction requirements in the power supply and distribution systems with different scales, the test model gives out grounding impedance national standard parameters of the lightning protection devices and the grounding terminals with different capacities, the equipment content integrated lightning protection grounding resistance test module tests on-site grounding impedance, and the test data and the grounding impedance national standard specified by the test model carry out threshold comparison analysis and give out reliability analysis results.
The detection method of the power supply and distribution guarantee capability comprises the following steps: aiming at a direct-current power supply system, combining a corresponding digital visual model, respectively comparing the internal resistance of a storage battery, the voltage of a storage battery pack and the output voltage of a switching power supply with corresponding rated working parameters, and carrying out weighted summation on comparison results according to corresponding weights to obtain the power supply and distribution efficiency of direct-current power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system. And outputting the endurance capacity, fault early warning and positioning of the direct-current backup power supply system, and providing suggestions for attenuating the performance of the storage battery or replacing the storage battery.
For an alternating current power supply system, combining a corresponding digital visual model, respectively comparing emergency starting time, oil reserve quantity, output alternating current voltage, alternating current, active power and reactive power of a diesel generating set with corresponding rated working parameters, and carrying out weighted summation on comparison results according to corresponding weights to obtain power supply and distribution efficiency of direct current power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system. Outputting the endurance capacity and fault early warning and positioning of the alternating current backup power system.
The detection of the power supply capacity of the information system power supply equipment is the core of the detection of the whole information system power supply and distribution equipment, and particularly, under the condition that the commercial power is suddenly interrupted, the backup power supply can independently support the information system to continuously and normally work.
The single-point detection and acquisition data of each sensor are input into a hardware module integrated in the detection platform through an internal and external interface of the detection platform, the hardware module carries out filtering, amplification and digital-to-analog conversion on the acquired data, the converted data are input into a corresponding power supply equipment model according to the test content, the data model operates on an industrial control operation platform, the industrial control operation platform gives out a detection result according to the output result of the model operation and national standard, the detection result is uploaded to an enterprise cloud platform for storage, and the enterprise cloud platform provides services of storage, management, inquiry detection report downloading and the like of the detection big data.
The embodiment of the application internally covers the electrical topological structure of the power supply and distribution equipment of the information system with different scales and the comprehensive performance detection and maintenance scheme of a plurality of groups of power supply equipment, as shown in fig. 6, the detection content can be autonomously defined according to the user requirements; the detected content indexes and working parameters are public indexes and parameters of a power supply and distribution system of power equipment in the field and are known in the field; the method can be defined by self according to the detection content, and improves the detection efficiency and the detection quality. The covered scale comprises safety and reliability detection of alternating current system power supply equipment, direct current system power supply equipment, backup power supply equipment and information system power supply and distribution power supply equipment. The embodiment of the application realizes real-time detection of the diesel generating set, the commercial power, the ATS cabinet or the train head cabinet, the switching power supply, the storage battery, the UPS and the like, and gives the health evaluation result according to the detection result.
The method comprises the steps of inputting parameters such as voltage, current, active power, power factors, voltage deviation and frequency deviation of the alternating-current and direct-current power supply equipment of the collected power supply equipment, such as voltage current, power, ripple, temperature, grounding resistance and the like of the direct-current power supply equipment into an evaluation algorithm and a data analysis model (comprehensive performance detection module), specifically realizing a flow, combining collected data fusion and characteristic extraction, combining standard parameters and national standard of the power supply equipment, outputting a detection result through a KANO algorithm model analysis method, if the result is normal, providing a detection report, and uploading the detection data to an enterprise cloud; if the detection result is abnormal, performing routine evaluation and positioning analysis, and outputting a fault detection report and related data. The comprehensive performance detection report provided by the embodiment of the application is shown in table 1.
TABLE 1 field test detection report of an embodiment of the application
For example, the key parameters of the backup power supply of the storage battery are four parameters of internal resistance, temperature, voltage and current of the storage battery, and the four models are input into a storage battery detection model, so that the detection model can provide capacity and guarantee capability of the storage battery. And then, according to the Carnot analysis method, the health evaluation level of the actual running of the storage battery is given out from four dimensions of the factory working parameters, the national standard, the actual detection capacity and the guarantee capacity of the power supply equipment. If the indexes of the power supply equipment to be tested are more, such as alternating current equipment, besides voltage, current, frequency, phase, power factor, unbalance and harmonic waves, the acquired parameters can be input into a power supply equipment model to be tested, the power supply model to be tested can output two maintenance key indexes, such as a power quality index and power supply efficiency, and the comprehensive detection evaluation level is given from the power quality index, the power supply efficiency, the working parameters of the alternating current equipment and the national standard by combining a Carnot analysis method.
The built-in navigation system can guide the user to automatically complete the comprehensive performance detection of the information system power supply equipment, has no special industry experience requirement on maintenance personnel, has the characteristics of simple use, strong practicality and operability, high intelligent degree and the like, and the detection completion provides the industry for the user to accord with the national standard comprehensive performance detection report, and the detection effect is shown in table 2.
TABLE 2 comparison of the inventive and conventional detection effects
The capacity expansion and specific load types of a future system cannot be preset in the early stage of power supply and distribution construction of the information system; the performance, the function and the like of the AC/DC power supply equipment are all lost and deteriorated along with the continuous operation, the existing system can only present visual fault results, and the conventional performance and function deterioration is difficult to embody in the quantitative detection of the existing information system. The traditional power supply detection is carried out by means of a single instrument and professional experience of operators, and the single-point instrument detection result is isolated and cannot accurately judge the power supply and distribution safety performance for lightning protection, insulation and the like of power supply and distribution power supply equipment; and the traditional detection is finally analyzed by means of discrete single-point detection results, basically the problem is re-detected as a target, the early intervention treatment is difficult, the large problem is easy to be generated, and the comprehensive performance quantitative detection requirement of a power supply system is difficult to be met. For example, lightning grounding detection is carried out, a detector carries a grounding resistance detection instrument to measure on site, and measured data judges whether the detection requirement of lightning grounding is met according to project construction power supply equipment construction standards and manual experience. The method is characterized in that the method is used for judging different detection contents by means of single-point meters and manual experience, a complex power supply and distribution system cannot meet comprehensive detection requirements and provide comprehensive detection reports, and fault positioning and operation and maintenance suggestions cannot be given to fault points. The potential safety hazards and faults of the information system power supply equipment are not only caused by the degradation of the performance index of certain power supply equipment, but also are comprehensive system factors, the performance attenuation has extremely high concealment, the detection index of a single node or equipment cannot determine the potential hazard points or the safety fault risk points, a whole set of comprehensive detection and evaluation means aiming at the performance and the safety is needed to be provided for detection, the health degree of the system, including potential safety and fault risk points, is represented by quantitative indexes, and intervention and prevention are given in advance. And the accident caused by the failure of the information system is prevented.
According to the embodiment of the application, safety indexes of lightning protection, grounding, insulation and other engineering participation power supply equipment are fully correlated, detection and comprehensive analysis are carried out, a diesel generator set, a storage battery, a comprehensive power supply and UPS are established for linkage detection engineering, the linkage detection engineering comprises comprehensive acquisition of power supply guaranteeing capability, power supply and distribution efficiency, power supply and distribution power quality, power supply and distribution safety and the like, and then comprehensive detection results of the performance of the information system power supply and distribution equipment are provided for maintenance personnel according to national standards, so that the accuracy is higher, the reliability is higher, the basis is provided for early intervention and processing, and the health degree of the power supply of the information system is improved.
In the actual application, for three-phase ac input and dc output capability detection, a hardware detection electrical topology is constructed as shown in fig. 8, and the detection requirement of the embodiment is satisfied under the condition that the power supply device works. In particular to the detection of the direct current output quality, efficiency and power supply capacity. The whole detection system adopts a parallel mutual inductance acquisition and adjustable direct current compensation load mode, the tested equipment is generally matched with a certain redundancy, under the condition of unclear redundancy, the limit and normal working parameters of three-phase input and direct current output of the tested equipment can be accurately detected through the adjustable direct current load and the parallel mutual inductance acquisition, the measurement accuracy and the actual running industrial parameters of the power supply equipment are ensured, and the possibility is provided for comprehensive detection of the power supply equipment.
And the direct-current electric energy acquisition module CR-CJ02B is used for acquiring voltage, current and ripple of the direct-current electric energy output by the high-frequency switching power supply and uploading data to the comprehensive detection system platform through the CAN bus.
And the power quality module (namely F1760 power quality detection module) is used for collecting the steady-state data of the alternating-current and direct-current power supply quality of the information system power supply equipment and uploading the steady-state data to the comprehensive detection system platform.
The embodiment of the application overcomes the defects that various power supply devices such as alternating current devices, direct current devices, power distribution devices, backup power supply devices, safety protection devices and the like in an information system, the power level, the voltage level, the insulation level, the capacity level and the like among different devices are not identical to the performance difference and the communication protocol and the like among different brands with different performances, and how to realize comprehensive performance detection under the condition of external influences of brands, performance, protocol and the like needs to overcome a plurality of technical barriers. The embodiment of the application realizes the quantitative comprehensive detection capability and platform realization under the condition of numerous uncertain factors. The comprehensive detection of power supply and distribution of single-point power supply equipment is solved, systematic and comprehensive detection is carried out according to factory indexes and national technical requirement indexes of the power supply equipment, the whole detection process is independent of human experience, the detection result is accurate and reliable, fault detection reports and transfer maintenance suggestions are provided, cloud-based comprehensive detection reports and detection big data management can be provided, and the operation and maintenance efficiency is improved. The comprehensive performance detection quantization index of the information system power supply equipment is provided for operation and maintenance personnel and management personnel, the basis of the quantization index is provided for the establishment and decision-making of a subsequent technical rectification scheme, the expansion and reconstruction pertinence of the information system is greatly improved, and the hidden danger of the system caused by blind expansion is avoided.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (10)
1. The method for detecting the comprehensive performance of the portable information system power supply is characterized by comprising the following steps of:
s1, classifying all power supply devices in an information system, wherein each type of power supply device respectively establishes a corresponding digital visual model, and the digital visual model comprises a power supply device type, a rated working parameter, a limit working parameter, interface information, a communication protocol and a detection index;
s2, an electric connection model for detecting the power supply and distribution electric energy quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment is established in the digital visual model so as to acquire the working parameters of the power supply equipment;
s3, inputting the collected working parameters into a corresponding digital visual model, carrying out data fusion and characteristic value extraction on the relevant working parameters, and outputting the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of corresponding power supply equipment through a comprehensive performance detection module.
2. The method for detecting the comprehensive performance of a portable information system power supply according to claim 1, wherein in S1, the power supply device includes seven types, respectively: the system comprises a mains supply, a generator set, an ATS cabinet/train head cabinet, a switching power supply, a UPS, lightning protection/grounding/insulation/leakage equipment and a storage battery.
3. The method for detecting the comprehensive performance of a portable information system power supply according to claim 1, wherein in S3, the method for detecting the quality of power supplied and distributed power is as follows: collecting working parameters including voltage, current, active power, reactive power, apparent power, voltage deviation and frequency deviation of alternating current power supply equipment and voltage, current, power and ripple of direct current power supply equipment through an electric connection model of power quality of power supply and distribution; comparing each working parameter with the corresponding rated working parameter by combining the corresponding digital visual model, and carrying out weighted summation on the comparison result according to the weight to obtain the power supply quality of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
4. The method for detecting the comprehensive performance of a portable information system power supply according to claim 1, wherein in S2, the method for detecting the power supply and distribution efficiency is as follows: the working parameters collected through the electric connection model of the power supply and distribution efficiency comprise multiple harmonics, active power, reactive power, apparent power, voltage deviation, frequency deviation and phase deviation of an alternating current power supply main circuit/each branch circuit of the alternating current power supply equipment; and the voltage, current, power and ripple of the main/each branch of the power supply of the direct current power supply device; comparing each working parameter with the corresponding rated working parameter by combining the corresponding digital visual model, and carrying out weighted summation on the comparison result according to the weight to obtain the comprehensive power supply and distribution efficiency of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
5. The method for detecting the comprehensive performance of a portable information system power supply according to claim 1, wherein in S3, the method for detecting the safety of power supply and distribution is as follows: the electric connection model comprises a lightning grounding detection module which is respectively connected with a temperature acquisition module, a grounding resistance acquisition module, a leakage sampling module and an insulation resistance acquisition module; the collected working temperature, grounding resistance, leakage current and insulation resistance of the corresponding power supply equipment are respectively compared with the corresponding rated working parameters by combining the corresponding digital visual model, and the comparison results are weighted and summed according to the weight corresponding to lightning protection, grounding and insulation to obtain the comprehensive safety of power supply and distribution; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
6. The method for detecting the comprehensive performance of a portable information system power supply according to claim 1, wherein in S3, the method for detecting the power supply and distribution ensuring capability is as follows: collecting the internal resistance of a storage battery, the voltage of a storage battery pack and the output voltage of a switching power supply of a direct-current power supply system through an electric connection model with power supply and distribution guarantee capability; and emergency starting time, oil reserve, output alternating voltage, alternating current, active power and reactive power of the generator set; comparing each working parameter with the corresponding rated working parameter by combining the corresponding digital visual model, and carrying out weighted summation on the comparison result according to the weight to obtain the power supply and distribution efficiency of the corresponding power supply equipment; the weight is determined according to industry standards and big data monitoring results of long-term continuous operation of the information system.
7. The method for detecting the comprehensive performance of a portable information system power supply according to claim 6, wherein S3 further comprises: and carrying out weighted average on weighted results corresponding to the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability according to weights corresponding to different types of power supply equipment, obtaining the comprehensive health performance of the power supply of the information system, and determining the weights corresponding to the different types of power supply equipment according to the big data monitoring result of long-term continuous operation of the information system.
8. The method for detecting the comprehensive performance of a portable information system power supply according to claim 2, wherein the total weight value of the switching power supply, the UPS, the generator set, the storage battery and the lightning protection/grounding/insulation/leakage equipment is 80%; the total weight value of the mains supply and the ATS cabinet/train head cabinet accounts for 20%.
9. A portable information system power comprehensive performance detection platform, characterized in that the method for detecting the comprehensive performance of the portable information system power comprehensive performance based on the method of claim 1 comprises the following steps:
the equipment model is used for establishing a digital visual model of power equipment involved in the information system;
the connection model is used for establishing a connection relation for the digital visual model of the power supply equipment and comprises an electric connection model for detecting the power supply and distribution power quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the power supply equipment;
the index system is used for storing detection result indexes of the digital visual model of the power supply equipment, and comprises standard performance indexes and actual measurement indexes;
the detection scheme is used for matching the electric connection model with corresponding indexes to realize local detection and global detection;
and the comprehensive performance detection module is used for outputting the power supply quality, the power supply and distribution efficiency, the power supply and distribution safety and the power supply and distribution guarantee capability of the corresponding power supply equipment of the information system.
10. The portable information system power comprehensive performance testing platform according to claim 9, further comprising testing engineering, testing scheduling and testing reporting; the detection engineering provides information system power supply equipment test standard test templates, technical indexes, functional requirements and standard specifications for users; the detection scheduling provides a matched detection equipment scheduling mode required by the detection process for the user.
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