WO2019144716A1 - 户外柱上真空开关的状态评价方法及装置 - Google Patents
户外柱上真空开关的状态评价方法及装置 Download PDFInfo
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- WO2019144716A1 WO2019144716A1 PCT/CN2018/120228 CN2018120228W WO2019144716A1 WO 2019144716 A1 WO2019144716 A1 WO 2019144716A1 CN 2018120228 W CN2018120228 W CN 2018120228W WO 2019144716 A1 WO2019144716 A1 WO 2019144716A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/668—Means for obtaining or monitoring the vacuum
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/04—Power grid distribution networks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/04—Ageing analysis or optimisation against ageing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/12—Timing analysis or timing optimisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/20—Administration of product repair or maintenance
Definitions
- the present disclosure relates to the field of power switch technology, and for example, to a state evaluation method and apparatus for an outdoor column vacuum switch.
- the degree of change of the state quantity is quantified, and the degree of change of the corresponding performance or operation condition of the device can be known. According to the degree of influence of the state quantity itself on the safe operation of the equipment, the corresponding maintenance and repair strategy is formulated.
- the method mainly relies on regular inspection, live detection, routine test and other data for periodic evaluation or dynamic evaluation, due to routine tests and periodic inspections. The patrol is carried out for a long time, and the difficulty in obtaining the state quantity will cause the delay in the health status of the equipment.
- the present disclosure provides a state evaluation method and device for an outdoor column vacuum switch to control the health condition of the outdoor column vacuum switch, and timely detect defects or hidden dangers, thereby avoiding equipment damage, personal electric shock and death, and user power failure.
- an embodiment of the present disclosure provides a method for evaluating a state of an outdoor column vacuum switch, including:
- M is the state evaluation score value
- M i is the i-th state quantity score of the vacuum switch on the column
- M 0 100K T X f
- X f is the repair coefficient
- K T (100- 0.5Y)/100
- Y indicates the operating period.
- an embodiment of the present disclosure provides a state evaluation device for an outdoor column vacuum switch, including:
- a model building module is configured to: construct a state evaluation mathematical model of the vacuum switch on the column, and obtain a state quantity score of the vacuum switch on the column;
- the state evaluation module is configured to: according to the state quantity of the vacuum switch on the column, calculate a state evaluation score value based on the state of the vacuum switch on the column to realize on-line monitoring of the vacuum switch on the column Health status and evaluation of the health status of the vacuum switch on the column;
- M is the state evaluation score value
- M i is the i-th state quantity score of the vacuum switch on the column
- M 0 100K T X f
- X f is the repair coefficient
- K T (100- 0.5Y)/100
- Y indicates the operating period.
- FIG. 1 is a flow chart of a method for evaluating a state of an outdoor column vacuum switch according to an embodiment of the present disclosure
- FIG. 2 is a schematic diagram of another state evaluation method for an outdoor column vacuum switch according to an embodiment of the present disclosure
- FIG. 3 is a schematic structural diagram of a state evaluation device for an outdoor column vacuum switch according to an embodiment of the present disclosure
- FIG. 4 is a flowchart of a method for evaluating a state of an outdoor column vacuum switch according to an embodiment of the present disclosure.
- FIG. 1 is a flowchart of a method for evaluating the state of the vacuum switch on the outdoor column according to the embodiment of the present disclosure. As shown in FIG. 1 , the method includes:
- step 110 a state evaluation mathematical model of the vacuum switch on the column is constructed, and a state quantity score of the vacuum switch on the column is obtained.
- Step 120 According to the state quantity of the vacuum switch on the column, the mathematical model obtains a state evaluation score value based on the state of the vacuum switch on the column, so as to realize online monitoring of the health state of the vacuum switch on the column and The health status of the vacuum switch on the column was evaluated.
- M is the state evaluation score value
- M i is the i-th state quantity score of the vacuum switch on the column
- M 0 100K T X f
- X f is the repair coefficient
- K T (100-0.5Y)/ 100
- Y indicates the number of years of operation.
- the outdoor on-column vacuum switch can be understood as a 35 kv on-column vacuum switch or an on-column vacuum switch below 35 kv, for example, a 10 kv on-column vacuum switch.
- the on-column vacuum switch is an outdoor column vacuum switch.
- the state evaluation method of the outdoor on-column vacuum switch constructs a mathematical model for evaluating the state of the vacuum switch on the column by integrating a plurality of state quantities of the vacuum switch on the column, thereby realizing on-line monitoring of the health status of the vacuum switch on the column. And status evaluation.
- the state quantity of the on-column vacuum switch includes at least one of the following: a lightning parameter status quantity, a temperature status quantity of a feeder terminal unit (FTU) battery, a communication status quantity, and a transformer status.
- the state quantity of the on-column vacuum switch is the lightning parameter state quantity
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the value of the U 0 is analyzed according to a first preset analysis rule, and the score of the state quantity of the lightning parameter is obtained;
- the first preset analysis rule includes: the weight is a first preset value; and when the U 0 is less than or equal to 85 kV, the lightning parameter state quantity is scored into the first preset value. If the U 0 is greater than 85 kV and less than 140 kV or the U 0 is equal to 140 kV, the lightning parameter state quantity is scored as a first rating value, and the first rating value is smaller than the first preset value; in the case of U 0 is greater than 140kV, said lightning parameters of the state quantity U 0 scored on the basis of 140kV per increase 1kV, on the basis of the decrease of the first scores A preset drop value.
- the lightning parameter state quantity scoring method is:
- 85kV and 140kV, etc. are determined according to the actual application, and are not fixed. For example, for a 10kV on-column vacuum switch, it can be set as described above, and for a 35kV on-column vacuum switch, It may not be set as described above. A similar situation exists below and will not be described again.
- the state quantity of the on-column vacuum switch is the temperature state quantity of the FTU battery
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the second preset analysis rule includes: the weight is a second preset value; and when the internal temperature value of the FTU battery is greater than -25.0 ° C and less than 55.0 ° C, the temperature state quantity of the FTU battery Dividing into the second preset value; if the internal temperature value of the FTU battery is greater than 55.1 ° C and less than 64.9 ° C or the internal temperature value of the FTU battery is greater than -25.1 ° C and less than -34.9 ° C In the case, the temperature state quantity of the FTU battery is scored as a second rating value; or the internal temperature value of the FTU battery is greater than 65 ° C and less than 69.999 ° C or the internal temperature value of the FTU battery is greater than -35.1 ° C and less than -39.9 ° C, the temperature state quantity of the FTU battery is scored as a third rating value; in the case where the internal temperature value of the FTU battery is greater than or equal to 70 ° C or in the Where the internal temperature value of the FTU
- the temperature state quantity scoring method of the FTU battery is:
- the state quantity of the on-column vacuum switch is the communication state quantity
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the time is analyzed according to a fourth preset analysis rule, and the score of the communication state quantity is obtained;
- the fourth preset analysis rule includes: the weight is a fourth preset value; and when the absolute value of the difference between the time of the server and the time of the vacuum switch on the column is less than the preset time threshold, the confirmation The vacuum switch communication on the column is normal, and the communication state quantity is divided into the fourth preset value; the absolute value of the difference between the time of the server and the time of the vacuum switch on the column is not less than In the case of the preset time threshold, it is confirmed that the on-column vacuum switch communication is abnormal, and the score of the communication state amount is zero.
- the communication state quantity scoring method is:
- the weight is 5 points; the absolute value of the difference between the current server time and the time of the vacuum switch on the column (equipment time) is within 15 minutes, indicating that the vacuum switch communication on the column is normal, the current server The absolute value of the difference between the time and the time of the vacuum switch on the column (equipment time) is not within 15 minutes, indicating that the vacuum switch communication on the column is abnormal; 5 points under normal conditions, the abnormality is not scored; the communication status is finally scored as M3. .
- the state quantity of the on-column vacuum switch is the transformer state quantity; and the obtaining the state quantity score of the on-column vacuum switch comprises:
- the fifth preset analysis rule includes: when the three-phase unbalance degree of the current is less than a preset percentage, the first part of the transformer state quantity is scored into a fourth rating value; When the three-phase unbalance of the current is not less than a preset percentage, the first part of the state quantity of the transformer is scored as zero; in the case of non-grounding, when the voltage value is greater than 5.5 kV and less than 6.5 kV Or when the voltage value is equal to 5.5 kV or when the voltage value is equal to 6.5 kV, the second part of the transformer state quantity is scored as the fourth rating value; in the case of non-grounding, When the voltage value is less than 5.5 kV or greater than 6.5 kV, the second portion of the transformer state quantity is scored as zero; the transformer state quantity is scored and the first part of the transformer state quantity is scored and The sum of the scores of the second part of the state quantity of the transformer.
- the transformer state quantity scoring method is:
- the transformer measurement is judged.
- the three-phase unbalance of the current is ⁇ 10%, in the case of non-grounding, the voltage is between 5.5 and 6.5kV, the transformer measurement is normal, and the three-phase unbalance of the current Greater than or equal to 10%, or in the case of non-grounding, when the voltage is not at 5.5 to 6.5kV, the transformer is abnormally measured; the weight of the transformer is 6 points, wherein the current and voltage respectively account for 3 points, and the normal score is 3 points. Abnormal 0 points; the state of the transformer state is finally scored as M4.
- the state quantity of the on-column vacuum switch is the amount of the switch closing state
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the sixth preset analysis rule includes: the weight is a fifth preset value; and when the vacuum switch on the column is in an open state and the current value is less than 3A, the switch is closed and closed
- the meter is divided into the fifth preset value; in the case where the vacuum switch is in the open state and the current value is not less than 3A, the switch splitting state quantity is zero; Where the on-column vacuum switch is in a closed state and the current value is greater than 3A, the switch splitting state quantity is divided into the fifth preset value; the vacuum switch is combined on the column In the case of the gate state and the current value is not more than 3A, the score of the switch closing state quantity is zero.
- the switch splitting state quantity scoring method is:
- the switch is closed and closed.
- the current value is normal when it is ⁇ 3A.
- the current value is greater than or equal to 3A is abnormal.
- the closing state when the current value is >3A, it is normal, and the closing state is normal.
- the current value is less than or equal to 3A is abnormal; the weight of the closing and closing state is 4 points, the normal situation is 4 points, the abnormality is not scored; the amount of closing and closing state is finally divided into M5.
- the state quantity of the on-column vacuum switch is the voltage state quantity of the FTU battery
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the third preset analysis rule includes: the weight is a third preset value; and when the U bat is greater than or equal to 26V, the voltage state quantity of the FTU battery is scored as the third pre- a value; if the U bat is less than 21V, the score of the voltage state quantity of the FTU battery is zero; if the U bat is greater than 21V and less than 26V or the U bat is equal to 21V In the case, the U bat reduces the second preset lowering value based on the third preset value on the basis of 26V.
- the FTU battery voltage state quantity scoring method is:
- the state quantity of the on-column vacuum switch is the opening time state quantity
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the seventh preset analysis rule includes: the weight is a sixth preset value; and when the opening time value is less than 30 ms, the splitting time state quantity is divided into the sixth preset a value; in the case where the opening time value is greater than 30 ms and less than 50 ms or in the case where the opening time value is equal to 30 ms, the opening time state quantity is scored as a fifth rating value; In the case where the opening time value is greater than 50 ms and less than 100 ms or in the case where the opening time value is equal to 50 ms, the opening time state quantity is scored as a sixth rating value; and the opening time value is greater than Or equal to 100 ms, the score of the opening time state quantity is zero; wherein the fifth rating value is smaller than the sixth preset value, and the sixth rating value is smaller than the fifth rating value .
- the method for scoring the status of the opening time is:
- the state quantity score of the on-column vacuum switch includes a bonus point value and a minus point value
- the state meter of the on-column vacuum switch is divided into a result of subtracting the subtraction value from the bonus value.
- the bonus point is added to a score of a state quantity of at least one of: a score of the lightning parameter state quantity, a score of a temperature state quantity of the FTU battery, The scoring of the communication state quantity, the scoring of the transformer state quantity, the scoring of the switch split state quantity, the scoring of the voltage state quantity of the FTU battery, and the opening time state quantity Scoring
- the subtraction value includes at least one of a score of the switch breaking characteristic state amount, a score of the switch reject state amount, and a score of the switch malfunction state amount.
- the state quantity of the on-column vacuum switch is the switch breaking characteristic state quantity; and the obtaining the state quantity score of the on-column vacuum switch comprises:
- the eighth preset analysis rule includes: when the fault current is greater than 0A and less than 5000A, the score of the switch breaking characteristic state quantity is reduced by the third on the basis of the bonus value a preset lowering value; in the case where the fault current is greater than 5000A and less than 10000A or in the case where the fault current is equal to 5000A, the switch breaking characteristic state quantity is scored at the bonus point
- the fourth preset lowering value is reduced on the basis; in the case that the fault current is greater than 10000A and less than 16000A or the fault current is equal to 10000A, the switch breaking characteristic state quantity is scored in the
- the fifth preset lowering value is reduced on the basis of the added value; if the fault current is greater than or equal to 16000A, and the fault splitting number of the circuit breaker is less than 30, the switch breaking characteristic state quantity
- the score is reduced by the sixth preset drop value on the basis of the bonus point; in the case where the number of times the fault current is greater than 10000A is greater than 30, the switch break
- the third preset drop score is a product of the number of fault splits of the circuit breaker and 0.004
- the fourth preset drop score is a number of fault splits of the circuit breaker and a product of 0.04
- the fifth preset down score is a product of the number of fault splits of the circuit breaker and 0.4
- the sixth preset drop score is a number of fault splits of the circuit breaker and 2
- the seventh preset drop score is 40.
- the switch breaking characteristic state quantity scoring method is:
- the state quantity of the vacuum switch on the column is the amount of the switch refusal state
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the ninth preset analysis rule includes: every time the switch is rejected, the switch rejects the state quantity score by decreasing the eighth preset drop value on the basis of the bonus point value; In the case where the cumulative number of preset switch rejections exceeds the first preset time range, the score of the switch rejection state quantity is reduced by the ninth preset lowering value based on the bonus value.
- the switch refusal state quantity scoring method is:
- the number of times the switch of the statistical device is rejected is determined by the deduction system.
- the SOE contains information such as the total accident and protection actions, but there is no corresponding opening SOE (ie, does not include the switch opening information), then the switch is rejected, and the switch is rejected.
- the amount of switch refusal is finally divided into M9. Among them, information such as total accidents and protection actions can be understood as alarm information.
- the state quantity of the on-column vacuum switch is the amount of the switch malfunction state
- Obtaining a state quantity score of the vacuum switch on the column comprising:
- the number of times of the switch malfunction is analyzed according to the tenth preset analysis rule, and the score of the misoperation state quantity of the switch is obtained;
- the tenth preset analysis rule includes: every time a switch malfunction occurs, the score of the switch error state quantity is reduced by the tenth preset drop value on the basis of the bonus point value, if In the case where the cumulative number of preset switch misoperations is accumulated in the second preset time range, the score of the switch misoperation state amount is reduced by the eleventh preset lowering score value based on the bonus points.
- the method for scoring the state of the switch fault state is: counting the number of times of switch malfunction of the device, and adopting the method of deduction system; when the switch uploads the SOE message, there is no corresponding overcurrent protection and The operation of the dispatcher determines that the switch is malfunctioning.
- the switch is deactivated by 10 points each time. The accumulated number of times on the same day exceeds 2 times, 40 points are deducted, and 1 critical defect is counted. The amount of misoperation of the switch is finally divided into M10.
- the method for obtaining the repair coefficient X f includes:
- the preset fault repair table is searched, and the repair coefficient is obtained from the preset fault repair table.
- the state quantity may further include an inspection state quantity caused by an operation period, a defect, or a failure, and the repair coefficient is obtained by the service state quantity caused by the operation period, the defect, or the failure.
- the life factor K T and the repair factor X F are introduced according to the operating period of the device and the number of troubleshooting times. If the fault or defective component repair is considered as a new fault or the defect is basically eliminated, the component health state can be restored. To a higher level; if the repair of the component is old, the hidden danger of the fault or defect is not completely ruled out, but the health status is significantly better than the state of the unrepaired state, and the state evaluation base score M of the equipment will be moderately reduced.
- the preset fault repair table includes:
- the vacuum switch state quantity on the 10 kV column includes the lightning parameter state quantity, the FTU battery temperature state quantity, the communication state quantity, the transformer state quantity, the FTU battery voltage state quantity, the switch opening and closing state quantity, and the opening. Time state quantity, breaking characteristic state quantity, switch rejection state quantity, switch misoperation state quantity.
- FIG. 2 is a schematic diagram of another state evaluation method for an outdoor column vacuum switch according to an embodiment of the present disclosure.
- the real-time operation condition includes a lightning parameter state quantity, and a temperature state quantity of the FTU battery. , communication status quantity, transformer status quantity, FTU battery voltage status quantity, switch opening and closing status quantity and opening time status quantity.
- the deduction characteristics include the breaking characteristic state quantity, the switch rejection state quantity, and the switch malfunction state quantity.
- the device operating state can be evaluated and ranked:
- Level 1 Normal state, 85 ⁇ M ⁇ 100, equipment operation data is stable, and all electrical parameters meet the standard;
- Level 2 Attention state, 75 ⁇ M ⁇ 85 minutes, one of the main electrical parameters of the equipment is close to the standard limit or exceeds the attention value, or several auxiliary electrical parameters do not meet the standard, but does not affect the operation of the equipment;
- Level 3 abnormal state, 60 ⁇ M ⁇ 75 points, several main electrical parameters of the equipment exceed the standard stack limit, or one main electrical parameter exceeds the standard limit and several auxiliary electrical parameters are obviously abnormal, which has affected the performance index of the equipment. Or may develop into a major abnormal state, and the equipment can continue to operate;
- Level 4 Severe state, M ⁇ 60 points or less, one or more electrical parameters of the equipment are seriously out of standard or severe abnormality, and the equipment can only be operated for a short period of time or immediately.
- FIG. 3 is a schematic structural diagram of a state evaluation device for an outdoor column vacuum switch according to an embodiment of the present disclosure.
- an embodiment of the present disclosure provides a state evaluation device for an outdoor column vacuum switch, including:
- the model building module 310 is configured to: construct a state evaluation mathematical model of the vacuum switch on the column, and obtain a state quantity score of the vacuum switch on the column;
- the state evaluation module 320 is configured to: according to the state quantity of the vacuum switch on the column, evaluate the mathematical model acquisition state evaluation score value based on the state of the vacuum switch on the column to realize online monitoring of the on-column vacuum switch Health status and evaluation of the health status of the vacuum switch on the column;
- M is the state evaluation score value
- M i is the i-th state quantity score of the vacuum switch on the column
- M 0 100K T X f
- X f is the repair coefficient
- K T (100- 0.5Y)/100
- Y indicates the operating period.
- the state evaluation device for the outdoor on-column vacuum switch provided by the embodiment of the present disclosure may perform the state evaluation method of the outdoor on-column vacuum switch provided by any of the above embodiments.
- FIG. 4 is a flowchart of a method for evaluating a state of an outdoor column vacuum switch according to an embodiment of the present disclosure.
- the data acquisition device automatically collects various operating status data and historical text maintenance records (caused by faults or defects) of the vacuum switch on the 10kV column, and classifies them according to the state, and inputs the state evaluation model; the state evaluation model is important according to the multi-class state quantity. The degree is scored, and the mathematical model is evaluated according to the state of the vacuum switch on the column to determine the final score, and the evaluation is graded.
- Provide maintenance information of the device (or equipment) according to the evaluation grading situation carry out equipment maintenance; according to the operational status information provided by the evaluation grading situation, timely adjust and repair the operation status, and then re-evaluate the status.
- the state evaluation method of the outdoor on-column vacuum switch provided by the present disclosure, the state of the vacuum switch on the column can be obtained online from the relevant equipment, does not need to increase the cost, and takes into consideration factors such as the defect repair coefficient and the life coefficient, and evaluates the mathematical model. It meets the actual operation and maintenance conditions and has the following advantages compared with related technologies:
- the embodiments of the present disclosure can perform on-line monitoring of 10kV, 35kV and other outdoor on-column vacuum switches, and carry out in-depth analysis of the uploaded massive data to construct a multi-dimensional outdoor column vacuum switch evaluation system, so as to efficiently carry out the on-column vacuum switch online.
- the status rating and the corresponding fault repair strategy improve the reliability and working life of the equipment and reduce the power outage time.
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Abstract
一种户外柱上真空开关的状态评价方法,包括:构建柱上真空开关的状态评价数学模型,并获取所述柱上真空开关的状态量计分(110);根据所述柱上真空开关的状态量计分,基于所述柱上真空开关的状态评价数学模型获取状态评价得分值,以实现在线监测所述柱上真空开关的健康状态以及对所述柱上真空开关的健康状态进行评价(120)。
Description
本申请要求在2018年1月23日提交中国专利局、申请号为201810064359.3的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
本公开涉及电力开关技术领域,例如涉及一种户外柱上真空开关的状态评价方法及装置。
随着社会经济发展和人民生活水平的不断提高,用户对供电可靠性的要求越来越高,传统的计划性检修或预防性检修要对电网进行分区的停电以进行电气设备的检修,这会造成较大的浪费,提高检修成本。《配网设备状态检修试验规程》(Q/GDW 643-2011)、《配网设备状态检修导则》(Q/GDW 644-2011)、《配网设备状态评价导则》(Q/GDW 645-2011)提出了对10kV柱上真空开关状态量和评价方法,状态量是直接或间接表征设备状况的多种技术指标、性能和运行情况等参数的总称,用来反应设备的技术性能。当状态量发生变化时,将状态量的变化程度进行量化,可获知设备相应性能或运行情况变化的程度。再根据状态量本身对于设备的安全运行的影响程度,制定相应的检修检修策略,但该方法主要依靠定期巡视、带电检测、例行试验等数据进行定期评价或动态评价,因例行试验、定期巡视开展的时间较长,其状态量获取难的问题将造成设备健康状态研判延缓。
发明内容
本公开提供一种户外柱上真空开关的状态评价方法及装置,以掌控户外柱上真空开关的健康状况,及时发现缺陷或隐患,避免造成设备损坏、人身触电 伤亡、用户停电等事件。
在一实施例中,本公开实施例提供一种户外柱上真空开关的状态评价方法,包括:
构建柱上真空开关的状态评价数学模型,并获取所述柱上真空开关的状态量计分;
根据所述柱上真空开关的状态量计分,基于所述柱上真空开关的状态评价数学模型获取状态评价得分值,以实现在线监测所述柱上真空开关的健康状态以及对所述柱上真空开关的健康状态进行评价;
其中,所述柱上真空开关的状态评价数学模型为:
其中,M为所述状态评价得分值;M
i为柱上真空开关的第i个状态量计分;M
0=100K
TX
f,X
f为修复系数,寿命系数K
T=(100-0.5Y)/100,Y表示运行年限。
在一实施例中,本公开实施例提供一种户外柱上真空开关的状态评价装置,包括:
模型构建模块,设置为:构建柱上真空开关的状态评价数学模型,并获取所述柱上真空开关的状态量计分;
状态评估模块,设置为:根据所述柱上真空开关的状态量计分,基于所述柱上真空开关的状态评价数学模型获取状态评价得分值,以实现在线监测所述柱上真空开关的健康状态以及对所述柱上真空开关的健康状态进行评价;
其中,所述柱上真空开关的状态评价数学模型为:
其中,M为所述状态评价得分值;M
i为柱上真空开关的第i个状态量计分;M
0=100K
TX
f,X
f为修复系数,寿命系数K
T=(100-0.5Y)/100,Y表示运行年限。
图1为本公开实施例提供的一种户外柱上真空开关的状态评价方法的流程图;
图2为本公开实施例提供的另一种户外柱上真空开关的状态评价方法的示意图;
图3为本公开实施例提供的一种户外柱上真空开关的状态评价装置的结构示意图;
图4为本公开实施例提供的还一种户外柱上真空开关的状态评价方法的流程图。
本实施例提供一种户外柱上真空开关的状态评价方法,图1为本公开实施例提供的一种户外柱上真空开关的状态评价方法的流程图,如图1所示,该方法包括:
步骤110,构建柱上真空开关的状态评价数学模型,并获取所述柱上真空开关的状态量计分。
步骤120,根据所述柱上真空开关的状态量计分,基于所述柱上真空开关的状态评价数学模型获取状态评价得分值,以实现在线监测所述柱上真空开关的 健康状态以及对所述柱上真空开关的健康状态进行评价。
其中,所述柱上真空开关的状态评价数学模型为:
其中,M为状态评价得分值;M
i为柱上真空开关的第i个状态量计分;M
0=100K
TX
f,X
f为修复系数,K
T=(100-0.5Y)/100,Y表示运行年限。
在一实施例中,户外柱上真空开关可以理解为35kv的柱上真空开关或者35kv以下的柱上真空开关,例如,10kv的柱上真空开关。
在一实施例中,柱上真空开关即户外柱上真空开关。
本公开实施例提供的户外柱上真空开关的状态评价方法,通过融合柱上真空开关的多个状态量,构建柱上真空开关的状态评价数学模型,实现对柱上真空开关健康状况的在线监测以及状态评价。
在一实施例中,所述柱上真空开关的状态量包括下述至少之一:雷电参数状态量,馈线终端设备(Feeder Terminal Unit,FTU)电池的温度状态量、通信状态量、互感器状态量、FTU电池电压状态量、开关分合闸状态量、分闸时间状态量、开断特性状态量、开关拒动状态量以及开关误动状态量。
在一实施例中,所述柱上真空开关的状态量为所述雷电参数状态量;
所述获取所述柱上真空开关的状态量计分,包括:
按照第一预设分析规则对所述U
0的取值进行分析,获取所述雷电参数状态量的计分;
其中,所述第一预设分析规则包括:权重为第一预设值;在所述U
0小于或等于85kV的情况下,所述雷电参数状态量的计分为所述第一预设值;在所述U
0大于85kV且小于140kV或者所述U
0等于140kV的情况下,所述雷电参数状态量的计分为第一评分值,所述第一评分值小于所述第一预设值;在所述U
0大于140kV的情况下,所述雷电参数状态量的计分为所述U
0在所述140kV的基础上每增加1kV,在所述第一评分值的基础上减少第一预设降分值。
即,在一实施例中,所述雷电参数状态量评分方法为:
通过雷电定位采集柱上真空开关杆塔雷电流幅值大小I、雷击点距杆塔距离S以及所述杆塔的高度h
c,计算直击雷
或感应过电压
权重10分,根据过电压值进行分析:(1)U
0≤85kV,10分;(2)85<U
0≤140kV,8分;(3)U
0>140kV,在140kV的基础上每增加1kV,在8分的基础上扣0.1分,扣完为止;雷电参数状态量最终计分为M1。
在一实施例中,85kV以及140kV等是根据实际应用情况而定的,并不是固定的,例如,对于10kV的柱上真空开关,可以按照上述情况设定,而对于35kV的柱上真空开关,可以不按照上述情况设定。下文存在类似的情况,不再赘述。
在一实施例中,所述柱上真空开关的状态量为所述FTU电池的温度状态量;
所述获取所述柱上真空开关的状态量计分,包括:
实时采集所述FTU电池的内部温度值;
按照第二预设分析规则对所述FTU电池的内部温度值进行分析,获取所述 FTU电池的温度状态量的计分;
其中,所述第二预设分析规则包括:权重为第二预设值;在所述FTU电池的内部温度值大于-25.0℃且小于55.0℃的情况下,所述FTU电池的温度状态量的计分为所述第二预设值;在所述FTU电池的内部温度值大于55.1℃且小于64.9℃的情况下或者在所述FTU电池的内部温度值大于-25.1℃且小于-34.9℃的情况下,所述FTU电池的温度状态量的计分为第二评分值;在所述FTU电池的内部温度值大于65℃且小于69.999℃的情况下或者在所述FTU电池的内部温度值大于-35.1℃且小于-39.9℃的情况下,所述FTU电池的温度状态量的计分为第三评分值;在所述FTU电池的内部温度值大于或等于70℃的情况下或者在所述FTU电池的内部温度值小于或等于-40℃的情况下,所述FTU电池的温度状态量的计分为零;其中,所述第二评分值小于所述第二预设值,所述第三评分值小于所述第二评分值。
即,在一实施例中,所述FTU电池的温度状态量评分方法为:
实时采集FTU电池内部温度,权重5分,根据实际情况进行分析:(1)-25.0℃~55.0℃,5分;(2)55.1℃~64.9℃或-25.1℃~-34.9℃,3分;(3)65℃~69.999℃或-35.1℃~-39.9℃,2分;(4)70℃以上或-40℃以下,0分;FTU电池的温度状态量最终计分为M2。
在一实施例中,所述柱上真空开关的状态量为所述通信状态量;
所述获取所述柱上真空开关的状态量计分,包括:
根据设备时间判断其通信状态,获取所述柱上真空开关的时间;
按照第四预设分析规则对所述时间进行分析,获取所述通信状态量的计分;
其中,所述第四预设分析规则包括:权重为第四预设值;在服务器的时间 与所述柱上真空开关的时间的差值的绝对值小于预设时间阈值的情况下,确认所述柱上真空开关通信正常,所述通信状态量的计分为所述第四预设值;在所述服务器的时间与所述柱上真空开关的时间的差值的绝对值不小于所述预设时间阈值的情况下,确认所述柱上真空开关通信异常,所述通信状态量的计分为零。
即,在一实施例中,所述通信状态量评分方法为:
根据时间判断柱上真空开关的通信状态,权重5分;当前服务器时间与柱上真空开关的时间(设备时间)差值的绝对值在15分钟之内,表示柱上真空开关通信正常,当前服务器时间与柱上真空开关的时间(设备时间)差值的绝对值不在15分钟之内,表示柱上真空开关通信异常;正常情况下得5分,异常不得分;通信状态量最终计分为M3。
在一实施例中,所述柱上真空开关的状态量为所述互感器状态量;所述获取所述柱上真空开关的状态量计分,包括:
获取电流的三相不平衡度以及电压值;
按照第五预设分析规则分别对所述电流的三相不平衡度和所述电压值进行分析,获取所述互感器状态量的计分;
其中,所述第五预设分析规则包括:在所述电流的三相不平衡度小于预设百分比的情况下,所述互感器状态量的第一部分计分为第四评分值;在所述电流的三相不平衡度不小于预设百分比的情况下,所述互感器状态量的第一部分计分为零;在非接地的情况下,当所述电压值大于5.5kV且小于6.5kV时或者当所述电压值等于5.5kV时或者当所述电压值等于6.5kV时,所述互感器状态量的第二部分计分为所述第四评分值;在非接地的情况下,当所述电压值小于 5.5kV或大于6.5kV时,所述互感器状态量的第二部分计分为零;所述互感器状态量的计分为所述互感器状态量的第一部分计分和所述互感器状态量的第二部分计分之和。
即,在一实施例中,所述互感器状态量评分方法为:
根据电流电压是否正常来评判互感器测量,当电流的三相不平衡度<10%,在非接地情况下,电压处于5.5至6.5kV时,互感器测量正常,当电流的三相不平衡度大于或等于10%,或者在非接地情况下,电压不处于5.5至6.5kV时,互感器测量异常;互感器测量权重为6分,其中,电流和电压分别占3分,正常得3分、异常0分;互感器状态量最终计分为M4。
在一实施例中,所述柱上真空开关的状态量为所述开关分合闸状态量;
所述获取所述柱上真空开关的状态量计分,包括:
确定所述柱上真空开关为分闸状态或合闸状态,并在所述分闸状态或所述合闸状态下获取电流值;
按照第六预设分析规则结合所述柱上真空开关的分闸状态或所述柱上真空开关的合闸状态以及所述电流值进行分析,获取所述开关分合闸状态量的计分;
其中,所述第六预设分析规则包括:权重为第五预设值;在所述柱上真空开关为分闸状态且所述电流值小于3A的情况下,所述开关分合闸状态量的计分为所述第五预设值;在所述柱上真空开关为分闸状态且所述电流值不小于3A的情况下,所述开关分合闸状态量的计分为零;在所述柱上真空开关为合闸状态且所述电流值大于3A的情况下,所述开关分合闸状态量的计分为所述第五预设值;在所述柱上真空开关为合闸状态且所述电流值不大于3A的情况下,所述开关分合闸状态量的计分为零。
即,在一实施例中,所述开关分合闸状态量评分方法为:
判断开关分合闸状态,分闸情况下,电流值<3A时为正常,分闸情况下,电流值大于或等于3A为异常;合闸状态下,电流值>3A时为正常,合闸状态下,电流值小于或等于3A为异常;分合闸状态权重4分,正常情况得4分,异常不得分;分合闸状态量最终计分为M5。
在一实施例中,所述柱上真空开关的状态量为所述FTU电池的电压状态量;
所述获取所述柱上真空开关的状态量计分,包括:
获取所述FTU电池的真实电压U
bat;
按照第三预设分析规则对所述U
bat的取值进行分析,获取所述FTU电池的电压状态量的计分;
其中,所述第三预设分析规则包括:权重为第三预设值;在所述U
bat大于或等于26V的情况下,所述FTU电池的电压状态量的计分为所述第三预设值;在所述U
bat小于21V的情况下,所述FTU电池的电压状态量的计分为零;在所述U
bat大于21V且小于26V的情况下或者在所述U
bat等于21V的情况下,所述U
bat在26V的基础上,每下降1V,在所述第三预设值的基础上减少第二预设降分值。
即,在一实施例中,所述FTU电池电压状态量评分方法为:
根据FTU电池的真实电压U
bat状态进行评估,权重15分;(1)U
bat>=26V时,15分;(2)U
bat<21V时,0分;(3)21V<=U
bat<26V时,每下降1V扣3分;FTU电池电压状态量最终计分为M6。
在一实施例中,所述柱上真空开关的状态量为所述分闸时间状态量;
所述获取所述柱上真空开关的状态量计分,包括:
获取所述柱上真空开关的分闸时间值;
按照第七预设分析规则对所述柱上真空开关的分闸时间值进行分析,获取所述分闸时间状态量的计分;
其中,所述第七预设分析规则包括:权重为第六预设值;在所述分闸时间值小于30ms的情况下,所述分闸时间状态量的计分为所述第六预设值;在所述分闸时间值大于30ms且小于50ms的情况下或者在所述分闸时间值等于30ms的情况下,所述分闸时间状态量的计分为第五评分值;在所述分闸时间值大于50ms且小于100ms的情况下或者在所述分闸时间值等于50ms的情况下,所述分闸时间状态量的计分为第六评分值;在所述分闸时间值大于或等于100ms的情况下,所述分闸时间状态量的计分为零;其中,所述第五评分值小于所述第六预设值,所述第六评分值小于所述第五评分值。
即,在一实施例中,所述分闸时间状态量评分方法为:
以开关分闸时间T评估开关性能,权重10分。(1)T<30ms,10分;(2)30ms<=T<50ms,6分;(3)50ms<=T<100ms,2分;(4)T>=100ms,0分;分合闸时间状态量最终计分为M7。
在一实施例中,所述柱上真空开关的状态量计分包括加分值和减分值;
所述柱上真空开关的状态量计分为在所述加分值的基础上与所述减分值进行减法运算的结果。
在一实施例中,所述加分值为对下述至少一项的状态量的计分进行加法运算:所述雷电参数状态量的计分、所述FTU电池的温度状态量的计分、所述通信状态量的计分、所述互感器状态量的计分、所述开关分合闸状态量的计分、所述FTU电池的电压状态量的计分以及所述分闸时间状态量的计分;
所述减分值包括下述至少之一:所述开关开断特性状态量的计分、所述开关拒动状态量的计分以及所述开关误动状态量的计分。
在一实施例中,所述柱上真空开关的状态量为所述开关开断特性状态量;所述获取所述柱上真空开关的状态量计分,包括:
获取断路器的故障分合次数和故障电流;
按照第八预设分析规则对所述故障分合次数和所述故障电流进行分析,获取所述开关开断特性状态量的计分;
其中,所述第八预设分析规则包括:在所述故障电流大于0A且小于5000A的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第三预设降分值;在所述故障电流大于5000A且小于10000A的情况下或者在所述故障电流等于5000A的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第四预设降分值;在所述故障电流大于10000A且小于16000A的情况下或者在所述故障电流等于10000A的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第五预设降分值;在所述故障电流大于或等于16000A,且所述断路器的故障分合次数小于30的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第六预设降分值;在累计所述故障电流大于10000A的次数大于30的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第七预设降分值。
在一实施例中,所述第三预设降分值为所述断路器的故障分合次数与0.004的乘积,所述第四预设降分值为所述断路器的故障分合次数与0.04的乘积,所述第五预设降分值为所述断路器的故障分合次数与0.4的乘积,所述第六预设降分值为所述断路器的故障分合次数与2的乘积,所述第七预设降分值为40。
即,在一实施例中,所述开关开断特性状态量评分方法为:
以断路器的故障分合次数N和故障电流E为依据,采取扣分制的方式;(1)0<E<5000A时,扣分1/10000*N*40;(2)5000A<=E<10000A时,扣分1/1000*N*40;(3)10000A<=E<16000A时,扣分1/100*N*40;(4)E>=16000A且N<30时,扣分1/20*N*40;(5)累计E>=10000A的次数N大于30,扣分40;开断特性状态量最终计分为M8。
在一实施例中,所述柱上真空开关的状态量为所述开关拒动状态量;
所述获取所述柱上真空开关的状态量计分,包括:
统计所述柱上真空开关的开关拒动次数;
按照第九预设分析规则对所述开关拒动次数进行分析,获取所述开关拒动状态量的计分;
其中,所述第九预设分析规则包括:每发生一次开关拒动,所述开关拒动状态量的计分为在所述加分值的基础上减少第八预设降分值;如果在第一预设时间范围内累计超过预设开关拒动次数的情况下,则所述开关拒动状态量的计分为在所述加分值的基础上减少第九预设降分值。
即,在一实施例中,所述开关拒动状态量评分方法为:
统计设备的开关拒动次数,采取扣分制的方式。当故障事件记录顺序(sequence of events,SOE)上传后,SOE包含事故总、保护动作等信息,但是没有对应的分闸SOE(即不包含开关分闸信息)则判定为开关拒动,开关拒动每次扣10分,同一天累计次数超过2次,扣40分,且算1次危急缺陷。开关拒动状态量最终计分为M9。其中,事故总、保护动作等信息可以理解为告警信息。
在一实施例中,所述柱上真空开关的状态量为所述开关误动状态量;
所述获取所述柱上真空开关的状态量计分,包括:
统计所述柱上真空开关的开关误动次数;
按照第十预设分析规则对所述开关误动次数进行分析,获取所述开关误动状态量的计分;
其中,所述第十预设分析规则包括:每发生一次开关误动,所述开关误动状态量的计分为在所述加分值的基础上减少第十预设降分值,如果在第二预设时间范围内累计超过预设开关误动次数的情况下,则所述开关误动状态量的计分为在所述加分值的基础上减少第十一预设降分值。
即,在一实施例中,所述开关误动状态量评分方法为:统计设备的开关误动次数,采取扣分制的方式;当开关上传分闸SOE报文,没有对应的过流保护及调度人员操作则判定为开关误动,开关误动每次扣10分,同一天累计次数超过2次,扣40分,且算1次危急缺陷;开关误动状态量最终计分为M10。
在一实施例中,所述修复系数X
f的获取方法包括:
按照预先划分的缺陷或故障等级以及预先划分的修复状态等级,查找预设故障修复表,从所述预设故障修复表中获取修复系数。
在一实施例中,状态量还可以包括运行年限、缺陷或故障引起的检修状态量,通过运行年限、缺陷或故障引起的检修状态量获取修复系数。
在一实施例中,以设备的运行年限和故障检修次数为因子,引入寿命系数K
T及修复系数X
F,若故障或缺陷部件修复如新可认为故障或缺陷基本排除,部件健康状态可恢复至较高水准;若部件修复如旧则认为故障或缺陷的隐患未完全排除,但健康状态会明显好于未修复时的状态,设备的状态评价基础分值M 将适度减少。
在一实施例中,所述预先划分的缺陷或故障等级包括:L
ev=0表示缺陷或故障不严重、L
ev=1表示缺陷或故障严重、L
ev=2表示缺陷或故障紧急;
所述预先划分的修复状态等级包括:XF=0表示所述缺陷或故障已完全修复,XF=1表示所述缺陷或故障未完全修复,XF=2表示所述缺陷或故障未修复;
所述预设故障修复表包括:
L
ev=0,XF=0,X
f=0.99;
L
ev=0,XF=1,X
f=0.97;
L
ev=0,XF=2,X
f=0.95;
L
ev=1,XF=0,X
f=0.95;
L
ev=1,XF=1,X
f=0.93;
L
ev=1,XF=2,X
f=0.7;
L
ev=2,XF=0,X
f=0.95;
L
ev=1,XF=1,X
f=0.9;
L
ev=2,XF=2,X
f=0.5。
K
T=(100-0.5*Y)/100,其中Y表示运行年限;M
0是变化量,缺陷后的基础分M
0=100*K
T*X
f。
在一实施例中,10kV柱上真空开关状态量包括雷电参数状态量,FTU电池的温度状态量,通信状态量,互感器状态量,FTU电池电压状态量,开关分合闸状态量,分闸时间状态量,开断特性状态量,开关拒动状态量,开关误动状态量。
在一实施例中,图2为本公开实施例提供的另一种户外柱上真空开关的状态评价方法的示意图,参见图2,属于实时运行情况包括雷电参数状态量,FTU电池的温度状态量,通信状态量,互感器状态量,FTU电池电压状态量,开关分合闸状态量和分闸时间状态量。
属于扣分特性情况包括开断特性状态量,开关拒动状态量和开关误动状态量。在一实施例中,基于对上述状态量的评分,能对设备运行状态进行评估分级:
1级:正常状态,85≤M≤100,设备运行数据稳定,所有电参量符合标准;
2级:注意状态,75≤M<85分,设备的一个主电参量接近标准限值或超过注意值,或几个辅助电参量不符合标准,但不影响设备运行;
3级:异常状态,60≤M<75分,设备的几个主电参量超过标堆限值,或一个主电参量超过标准限值并几个辅助电参量明显异常,已影响设备的性能指标或可能发展成重大异常状态,设备仍能继续运行;
4级:严重状态,M<60分以下,设备的一个或几个电参量严重超出标准或严重异常,设备只能短期运行或立即停役。
图3为本公开实施例提供的一种户外柱上真空开关的状态评价装置的结构示意图,参见图3,本公开实施例提供一种户外柱上真空开关的状态评价装置,包括:
模型构建模块310,设置为:构建柱上真空开关的状态评价数学模型,并获取所述柱上真空开关的状态量计分;
状态评估模块320,设置为:根据所述柱上真空开关的状态量计分,基于所述柱上真空开关的状态评价数学模型获取状态评价得分值,以实现在线监测所述柱上真空开关的健康状态以及对所述柱上真空开关的健康状态进行评价;
其中,所述柱上真空开关的状态评价数学模型为:
其中,M为所述状态评价得分值;M
i为柱上真空开关的第i个状态量计分;M
0=100K
TX
f,X
f为修复系数,寿命系数K
T=(100-0.5Y)/100,Y表示运行年限。
在一实施例中,本公开实施例提供的户外柱上真空开关的状态评价装置可以执行上述任一实施例提供的户外柱上真空开关的状态评价方法。
图4为本公开实施例提供的还一种户外柱上真空开关的状态评价方法的流程图。通过数据采集装置自动采集10kV柱上真空开关的多种运行状态数据及历史文本检修记录(故障或缺陷引起),并按状态评分归类,输入状态评估模型;状态评估模型根据多类状态量重要程度进行评分,按照柱上真空开关的状态评价数学模型确定最终分值,并进行评估分级。根据评估分级情况提供装置(或设备)的检修信息,进行设备检修;根据评估分级情况提供的运行状态信息,对运行状态及时进行调整及修复程度,再重新进行状态评估。
本公开提供的户外柱上真空开关的状态评价方法,柱上真空开关状态量均可以从相关的设备在线获取,不需要增加成本,并考虑了缺陷修复系数及寿命系数等因素,评价数学模型更符合实际运维情况,与相关技术相比具有以下优点:
1、自动采集设备数据,减少人工劳动强度,提高工作效率。
2、综合分析电气一次设备、电气二次设备的状态参数,合理、科学分析设备使用情况,准确掌握设备运行状态。
3、通过信息融合及可视化技术对设备状态进行归类,并快捷、清晰地展示设备基本信息、多个参数状态及状态评分。
4、通过数据挖掘技术对设备的多类状态进行分析、整合、统计。
5、实时更新设备多类参数状态,准确、及时反映设备的运行状态。
本公开实施例可以对10kV、35kV等户外柱上真空开关进行在线监测,通过对上传的海量数据进行深度分析,构建多维度的户外柱上真空开关评价体系,以便高效的开展柱上真空开关在线状态评级及对应的故障抢修策略,提高了设备工作的可靠性和工作寿命,减少停电时间。
Claims (18)
- 根据权利要求1所述的方法,其中,所述柱上真空开关的状态量包括下述至少之一:雷电参数状态量,馈线终端设备FTU电池的温度状态量,通信状态量,互感器状态量,FTU电池的电压状态量,开关分合闸状态量,分闸时间状态量,开断特性状态量,开关拒动状态量以及开关误动状态量。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述雷电参数状态量;所述获取所述柱上真空开关的状态量计分,包括:按照第一预设分析规则对所述U 0的取值进行分析,获取所述雷电参数状态量的计分;其中,所述第一预设分析规则包括:权重为第一预设值;在所述U 0小于或等于85kV的情况下,所述雷电参数状态量的计分为所述第一预设值;在所述U 0大于85kV且小于140kV或者所述U 0等于140kV的情况下,所述雷电参数状态量的计分为第一评分值,所述第一评分值小于所述第一预设值;在所述U 0大于140kV的情况下,所述雷电参数状态量的计分为所述U 0在所述140kV的基础上每增加1kV,在所述第一评分值的基础上减少第一预设降分值。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述FTU电池的温度状态量;所述获取所述柱上真空开关的状态量计分,包括:实时采集所述FTU电池的内部温度值;按照第二预设分析规则对所述FTU电池的内部温度值进行分析,获取所述FTU电池的温度状态量的计分;其中,所述第二预设分析规则包括:权重为第二预设值;在所述FTU电池的内部温度值大于-25.0℃且小于55.0℃的情况下,所述FTU电池的温度状态量的计分为所述第二预设值;在所述FTU电池的内部温度值大于55.1℃且小于64.9℃的情况下或者在所述FTU电池的内部温度值大于-25.1℃且小于-34.9℃的情况下,所述FTU电池的温度状态量的计分为第二评分值;在所述FTU电池的内部温度 值大于65℃且小于69.999℃的情况下或者在所述FTU电池的内部温度值大于-35.1℃且小于-39.9℃的情况下,所述FTU电池的温度状态量的计分为第三评分值;在所述FTU电池的内部温度值大于或等于70℃的情况下或者在所述FTU电池的内部温度值小于或等于-40℃的情况下,所述FTU电池的温度状态量的计分为零;其中,所述第二评分值小于所述第二预设值,所述第三评分值小于所述第二评分值。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述FTU电池的电压状态量;所述获取所述柱上真空开关的状态量计分,包括:获取所述FTU电池的真实电压U bat;按照第三预设分析规则对所述U bat的取值进行分析,获取所述FTU电池的电压状态量的计分;其中,所述第三预设分析规则包括:权重为第三预设值;在所述U bat大于或等于26V的情况下,所述FTU电池的电压状态量的计分为所述第三预设值;在所述U bat小于21V的情况下,所述FTU电池的电压状态量的计分为零;在所述U bat大于21V且小于26V的情况下或者在所述U bat等于21V的情况下,所述U bat在26V的基础上,每下降1V,在所述第三预设值的基础上减少第二预设降分值。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述通信状态量;所述获取所述柱上真空开关的状态量计分,包括:获取所述柱上真空开关的时间;按照第四预设分析规则对所述时间进行分析,获取所述通信状态量的计分;其中,所述第四预设分析规则包括:权重为第四预设值;在服务器的时间与所述柱上真空开关的时间的差值的绝对值小于预设时间阈值的情况下,确认所述柱上真空开关通信正常,所述通信状态量的计分为所述第四预设值;在所述服务器的时间与所述柱上真空开关的时间的差值的绝对值不小于所述预设时间阈值的情况下,确认所述柱上真空开关通信异常,所述通信状态量的计分为零。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述互感器状态量;所述获取所述柱上真空开关的状态量计分,包括:获取电流的三相不平衡度以及电压值;按照第五预设分析规则分别对所述电流的三相不平衡度和所述电压值进行分析,获取所述互感器状态量的计分;其中,所述第五预设分析规则包括:在所述电流的三相不平衡度小于预设百分比的情况下,所述互感器状态量的第一部分计分为第四评分值;在所述电流的三相不平衡度不小于预设百分比的情况下,所述互感器状态量的第一部分计分为零;在非接地的情况下,当所述电压值大于5.5kV且小于6.5kV时或者当所述电压值等于5.5kV时或者当所述电压值等于6.5kV时,所述互感器状态量的第二部分计分为所述第四评分值;在非接地的情况下,当所述电压值小于5.5kV或大于6.5kV时,所述互感器状态量的第二部分计分为零;所述互感器状态量的计分为所述互感器状态量的第一部分计分和所述互感器状态量的第二部分计分之和。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述开关分合闸状态量;所述获取所述柱上真空开关的状态量计分,包括:确定所述柱上真空开关为分闸状态或合闸状态,并在所述分闸状态或所述合闸状态下获取电流值;按照第六预设分析规则结合所述柱上真空开关的分闸状态或所述柱上真空开关的合闸状态以及所述电流值进行分析,获取所述开关分合闸状态量的计分;其中,所述第六预设分析规则包括:权重为第五预设值;在所述柱上真空开关为分闸状态且所述电流值小于3A的情况下,所述开关分合闸状态量的计分为所述第五预设值;在所述柱上真空开关为分闸状态且所述电流值不小于3A的情况下,所述开关分合闸状态量的计分为零;在所述柱上真空开关为合闸状态且所述电流值大于3A的情况下,所述开关分合闸状态量的计分为所述第五预设值;在所述柱上真空开关为合闸状态且所述电流值不大于3A的情况下,所述开关分合闸状态量的计分为零。
- 根据权利要求2所述的方法,其中,所述柱上真空开关的状态量为所述分闸时间状态量;所述获取所述柱上真空开关的状态量计分,包括:获取所述柱上真空开关的分闸时间值;按照第七预设分析规则对所述柱上真空开关的分闸时间值进行分析,获取所述分闸时间状态量的计分;其中,所述第七预设分析规则包括:权重为第六预设值;在所述分闸时间值小于30ms的情况下,所述分闸时间状态量的计分为所述第六预设值;在所述分闸时间值大于30ms且小于50ms的情况下或者在所述分闸时间值等于30ms的情况下,所述分闸时间状态量的计分为第五评分值;在所述分闸时间值大于 50ms且小于100ms的情况下或者在所述分闸时间值等于50ms的情况下,所述分闸时间状态量的计分为第六评分值;在所述分闸时间值大于或等于100ms的情况下,所述分闸时间状态量的计分为零;其中,所述第五评分值小于所述第六预设值,所述第六评分值小于所述第五评分值。
- 根据权利要求2-9任一项所述的方法,其中,所述柱上真空开关的状态量计分包括加分值和减分值;所述柱上真空开关的状态量计分为在所述加分值的基础上与所述减分值进行减法运算的结果。
- 根据权利要求10所述的方法,其中:所述加分值为对下述至少一项的状态量的计分进行加法运算:所述雷电参数状态量的计分、所述FTU电池的温度状态量的计分、所述通信状态量的计分、所述互感器状态量的计分、所述开关分合闸状态量的计分、所述FTU电池的电压状态量的计分以及所述分闸时间状态量的计分;所述减分值包括下述至少之一:所述开关开断特性状态量的计分、所述开关拒动状态量的计分以及所述开关误动状态量的计分。
- 根据权利要求11所述的方法,其中,所述柱上真空开关的状态量为所述开关开断特性状态量;所述获取所述柱上真空开关的状态量计分,包括:获取断路器的故障分合次数和故障电流;按照第八预设分析规则对所述故障分合次数和所述故障电流进行分析,获取所述开关开断特性状态量的计分;其中,所述第八预设分析规则包括:在所述故障电流大于0A且小于5000A的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第三 预设降分值;在所述故障电流大于5000A且小于10000A的情况下或者在所述故障电流等于5000A的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第四预设降分值;在所述故障电流大于10000A且小于16000A的情况下或者在所述故障电流等于10000A的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第五预设降分值;在所述故障电流大于或等于16000A,且所述断路器的故障分合次数小于30的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第六预设降分值;在累计所述故障电流大于10000A的次数大于30的情况下,所述开关开断特性状态量的计分为在所述加分值的基础上减少第七预设降分值。
- 根据权利要求12所述的方法,其中,所述第三预设降分值为所述断路器的故障分合次数与0.004的乘积,所述第四预设降分值为所述断路器的故障分合次数与0.04的乘积,所述第五预设降分值为所述断路器的故障分合次数与0.4的乘积,所述第六预设降分值为所述断路器的故障分合次数与2的乘积,所述第七预设降分值为40。
- 根据权利要求11所述的方法,其中,所述柱上真空开关的状态量为所述开关拒动状态量;所述获取所述柱上真空开关的状态量计分,包括:统计所述柱上真空开关的开关拒动次数;按照第九预设分析规则对所述开关拒动次数进行分析,获取所述开关拒动状态量的计分;其中,所述第九预设分析规则包括:每发生一次开关拒动,所述开关拒动状态量的计分为在所述加分值的基础上减少第八预设降分值;如果在第一预设 时间范围内累计超过预设开关拒动次数的情况下,则所述开关拒动状态量的计分为在所述加分值的基础上减少第九预设降分值。
- 根据权利要求11所述的方法,其中,所述柱上真空开关的状态量为所述开关误动状态量;所述获取所述柱上真空开关的状态量计分,包括:统计所述柱上真空开关的开关误动次数;按照第十预设分析规则对所述开关误动次数进行分析,获取所述开关误动状态量的计分;其中,所述第十预设分析规则包括:每发生一次开关误动,所述开关误动状态量的计分为在所述加分值的基础上减少第十预设降分值,如果在第二预设时间范围内累计超过预设开关误动次数的情况下,则所述开关误动状态量的计分为在所述加分值的基础上减少第十一预设降分值。
- 根据权利要求1-15任一项所述的方法,其中,所述修复系数X f的获取方法包括:按照预先划分的缺陷或故障等级以及预先划分的修复状态等级,查找预设故障修复表,从所述预设故障修复表中获取修复系数。
- 根据权利要求16所述的方法,其中:所述预先划分的缺陷或故障等级包括:L ev=0表示缺陷或故障不严重、L ev=1表示缺陷或故障严重、L ev=2表示缺陷或故障紧急;所述预先划分的修复状态等级包括:XF=0表示所述缺陷或故障已完全修复,XF=1表示所述缺陷或故障未完全修复,XF=2表示所述缺陷或故障未修复;所述预设故障修复表包括:L ev=0,XF=0,X f=0.99;L ev=0,XF=1,X f=0.97;L ev=0,XF=2,X f=0.95;L ev=1,XF=0,X f=0.95;L ev=1,XF=1,X f=0.93;L ev=1,XF=2,X f=0.7;L ev=2,XF=0,X f=0.95;L ev=1,XF=1,X f=0.9;L ev=2,XF=2,X f=0.5。
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CN112213634B (zh) * | 2020-10-26 | 2023-05-09 | 浙江天正电气股份有限公司 | 一种检测断路器运行状态的方法及装置 |
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