阅读说明：本技术 一种计量设备远程业务功能自动化评测质量分析方法 (Automatic evaluation quality analysis method for remote service function of metering equipment ) 是由 刁新平 李媛 谭煌 刘婧 陈昊 于海波 徐永进 王黎欣 林英鹤 于 2020-09-27 设计创作，主要内容包括：本发明公开了一种计量设备远程业务功能自动化评测质量分析方法,涉及电力运维领域。目前,计量设备完成新装和升级后,没有相应的业务功能实现自动化评测,不利于计量设备质量的管控。本发明根据获取的计量设备信息,对对应的计量设备进行电量采集业务远程评测、负荷采集业务远程评测、及全事件采集业务远程评测；当三评测全部合格时,认为合格；若否,则认为不合格。本技术方案对新安装和升级后的计量设备进行严格审核、多项评测,评测效率高且全面,有效地减少新装和升级导致的采集异常和计量异常,直观的体现了设备质量,助力计量设备总体厂家评价,有效甄别厂商能力。(The invention discloses a method for automatically evaluating quality of remote service functions of metering equipment, and relates to the field of power operation and maintenance. At present, after the metering equipment is newly installed and upgraded, no corresponding service function is available to realize automatic evaluation, which is not beneficial to the quality control of the metering equipment. According to the acquired metering equipment information, carrying out electric quantity acquisition service remote evaluation, load acquisition service remote evaluation and full event acquisition service remote evaluation on corresponding metering equipment; when all the three evaluations are qualified, the evaluation is qualified; if not, the product is determined to be unqualified. According to the technical scheme, the newly installed and upgraded metering equipment is strictly checked and evaluated in multiple items, the evaluation efficiency is high and comprehensive, the abnormal acquisition and metering caused by new installation and upgrade are effectively reduced, the equipment quality is visually reflected, the overall manufacturer evaluation of the metering equipment is assisted, and the manufacturer capability is effectively identified.)

1. A method for automatically evaluating quality of remote service function of metering equipment is characterized by comprising the following steps:

1) acquiring installation and upgrade information of metering equipment;

2) according to the acquired metering equipment information, carrying out electric quantity acquisition service remote evaluation, load acquisition service remote evaluation and full event acquisition service remote evaluation on the corresponding metering equipment;

3) judging whether the remote evaluation of the electric quantity acquisition service, the remote evaluation of the load acquisition service and the remote evaluation of the full event acquisition service are all qualified, if so, determining that the electric quantity acquisition service is qualified; if not, determining that the product is unqualified; the qualification is the qualification corresponding to the newly installed metering equipment or the qualification of the upgrading of the metering equipment;

4) recording and processing unqualified metering equipment; the processing comprises replacement and upgrading again.

2. The automatic evaluation quality analysis method for the remote service function of the metering equipment according to claim 1, characterized in that: in step 1), when the metering device information is acquired, the automatic evaluation of the unified service function is uniformly performed on a batch of metering devices, wherein the batch is a same supplier, a same upgrading time period device, a same unit device, a same area device, a same scheme device, a same bidding batch device, or a same arrival batch device.

3. The automatic evaluation quality analysis method for the remote service function of the metering equipment according to claim 2, characterized in that: in step 2), the remote evaluation of the power acquisition service comprises the following steps:

1A) selecting data items to carry out comprehensive acquisition and evaluation; the data items comprise daily frozen reverse active total electric energy, daily frozen reverse active electric energy rate 1, daily frozen reverse active electric energy rate 2, daily frozen reverse active electric energy rate 3, daily frozen reverse active electric energy rate 4, daily frozen one-quadrant reactive total electric energy indicating value, current one-quadrant reactive total electric energy, daily frozen four-quadrant reactive total electric energy indicating value, current four-quadrant reactive total electric energy, daily frozen forward active electric energy rate 1, daily frozen forward active electric energy rate 2, daily frozen forward active electric energy rate 3 and daily frozen forward active electric energy rate;

1B) recording the acquisition integrity rate m days after installation or upgrading;

1C) if m days before installation exist, comparing, accumulating the total days m since first installation and upgrade, the current days i, and the acquisition integrity F of the success rate of the data items_iThe total quantity N of the batch of electric energy meters represents the sum of the currently evaluated batch of equipment;

overall acquisition integrity rate before calculation and m days after installation and upgrade, F_iRepresenting the integral acquisition integrity rate after installation and upgrade; f_-iRepresenting the integral acquisition integrity rate before installation and upgrade; wherein, calculatingThe formula is as follows:

when | F_i-F_-iIf the total electric energy of the electric quantity acquisition service is greater than u, and u is greater than 1%, and data items including daily frozen reverse active total electric energy are all successfully acquired, judging that the electric quantity acquisition service is qualified for remote evaluation;

1D) if the data of m days before installation is not available, the data are compared for a new installation user, the total days m since the first installation and the upgrade, the current days i, and the acquisition integrity rate F of the success rate of the data items are accumulated_iThe total quantity N of the batch of electric energy meters represents the sum of the currently evaluated batch of equipment, and the batch is a collection of equipment of the same time period, the same manufacturer or newly put into operation batch of equipment;

the integral acquisition integrity rate before calculation and m days after installation and upgrade is calculated by the following formula:

when | F_iIf the total rate of the electric quantity acquisition service is greater than u, and if all the data items including daily frozen reverse active total electric energy are successfully acquired, the remote evaluation of the electric quantity acquisition service is judged to be qualified.

4. The automatic evaluation quality analysis method for the remote service function of the metering equipment according to claim 2, characterized in that: in the step 2), the remote load acquisition success rate evaluation comprises the following steps:

2A) selecting data items for comprehensive acquisition and evaluation, wherein the data items comprise forward active total electric energy, active power, power factors, current data blocks and voltage data blocks, and the data items are obtained through recall test;

2B) recording the load acquisition integrity rate of m days after single equipment is installed or upgraded;

2C) and calculating the load acquisition integrity rate of all the equipment, wherein the calculation formula is as follows:

in the formula: q represents the total number of batches evaluated remotely, L represents the total number of areas where batch equipment is installed, E_ijAnd e_ijRespectively representing the number of the ith batch of equipment in the jth installation area and the total load acquisition complete rate quantity, and then evaluating the available load acquisition quantity of the system;

2D) when I is_FHCJ＞I_iIn which I_iAnd if the load acquisition integrity rate is the one-time load acquisition integrity rate of the whole province, judging that the load acquisition service of the batch of metering equipment is qualified for remote evaluation.

5. The automatic evaluation quality analysis method for the remote service function of the metering equipment according to claim 4, characterized in that: and m is 7 days.

6. The automatic evaluation quality analysis method for the remote service function of the metering equipment according to claim 2, characterized in that: in step 2), the remote evaluation of the full event collection service comprises the following steps:

3A) selecting event item information, comprising: overcurrent, meter opening cover, electric energy meter zero clearing, power failure, constant magnetic field interference, voltage loss, opening cover button, undervoltage, overvoltage, voltage unbalance, time correction, current loss, phase failure, power supply abnormity, cut-off, voltage reverse phase sequence, power flow reversal, overload, power factor lower limit exceeding, demand zero clearing, event zero clearing, programming, brake pulling, switch closing and total voltage loss;

3B) carrying out full event call and test on all events, determining acquisition success or failure, and recording to obtain event occurrence number data items;

3C) recording the number of all events as m, collecting and testing N times to obtain an m multiplied by N matrix N, wherein 1 represents that the event collection is successful, and 0 represents that the event collection is failed, and the matrix represents the collection success times of each event; using a function sum () to sum all the elements of the matrix;

k＝sum(sum(N))

3D) when I is_FHCJ＞I_iIn which I_iAnd if the threshold value of the full event basic acquisition integrity rate is set, judging that the remote evaluation result of the full event acquisition service of the batch is qualified.

Technical Field

The invention relates to the field of electric power operation and maintenance, in particular to a method for automatically evaluating quality of remote service functions of metering equipment.

Background

The national grid power utilization information acquisition system is popularized nationwide since 2010, and plays an important technical basic support role in business applications such as power transaction settlement, electric quantity calculation, demand side management, distribution network first-aid repair, anti-electricity-stealing inspection, line loss management and the like at present. The electric energy meter is used as an important component of the electricity utilization information acquisition system, the quality of the electric energy meter directly influences the data quality and the application level of the electricity utilization information of the user, the accuracy of electricity utilization metering of the power user and the safe, stable and economic operation of the system, and even the reliability of power supply is directly related. The quality evaluation of the electric energy meter is one of important means for ensuring and improving the quality of the electric energy meter, and is a key link for the whole life cycle management of the electric energy meter. The electric energy meter collects various event data besides electric quantity and load, along with popularization of non-metering services of the intelligent meter over the years by the national network, higher collection requirements are provided for high-frequency load and full data of the electric energy meter, and the integrity of the remote service function of the electric energy meter greatly supports the application level of various non-metering services of the power utilization information collection system. The method has the advantages that various service evaluation quality evaluation models of the electric energy meter are built to comprehensively evaluate the quality of the electric energy metering equipment, further management of a power grid company on suppliers can be assisted, objective and scientific bases can be provided for the power grid company to carry out quality evaluation and supervision on the electric energy meter, and the method has very important practical significance and engineering value for construction of the intelligent power grid.

The traditional metering equipment mainly carries out verification on concentrated verification after warehousing aiming at various standards and specifications of the electric meter, but a perfect evaluation flow is not established after field installation and electric meter upgrading, and an operator cannot know whether each service function of the metering equipment can be normally developed after the installation and the upgrading are finished and the installation is particularly upgraded. The electric meter has multiple service function types, various data items and different acquisition frequencies, under the extensive management mode, the new metering equipment in the whole province and the metering equipment after upgrading cannot be effectively controlled, on the other hand, the upgrading directly provided by a manufacturer cannot ensure 100% reliability, faults of the metering equipment are easily caused during upgrading, certain influence is generated on the safety and stability of the operation of a power grid, and then the legal part and the illegal part are separated along with the popularization of the multicore intelligent electric energy meter which is subjected to the drawing and setting standards of the national grid. The upgrading work of the illegal part becomes a normal state, so that the remote evaluation of the service function of the metering equipment also becomes a hot spot common service.

Disclosure of Invention

The technical problem to be solved and the technical task to be solved by the invention are to perfect and improve the prior technical scheme and provide an automatic evaluation quality analysis method for the remote service function of the metering equipment so as to achieve the aim of comprehensively and accurately auditing the newly installed and upgraded metering equipment. Therefore, the invention adopts the following technical scheme.

A method for automatically evaluating quality of remote service function of metering equipment comprises the following steps:

1) acquiring installation and upgrade information of metering equipment;

2) according to the acquired metering equipment information, carrying out electric quantity acquisition service remote evaluation, load acquisition service remote evaluation and full event acquisition service remote evaluation on the corresponding metering equipment;

3) judging whether the remote evaluation of the electric quantity acquisition service, the remote evaluation of the load acquisition service and the remote evaluation of the full event acquisition service are all qualified, if so, determining that the electric quantity acquisition service is qualified; if not, determining that the product is unqualified; the qualification is the qualification corresponding to the newly installed metering equipment or the qualification of the upgrading of the metering equipment;

4) recording and processing unqualified metering equipment; the processing comprises replacement and upgrading again.

2. The automatic evaluation quality analysis method for the remote service function of the metering equipment according to claim 1, characterized in that: in step 1), when the metering device information is acquired, the automatic evaluation of the unified service function is uniformly performed on a batch of metering devices, wherein the batch is a same supplier, a same upgrading time period device, a same unit device, a same area device, a same scheme device, a same bidding batch device, or a same arrival batch device.

As a preferable technical means: in step 2), the remote evaluation of the power acquisition service comprises the following steps:

1A) selecting data items to carry out comprehensive acquisition and evaluation; the data items comprise daily frozen reverse active total electric energy, daily frozen reverse active electric energy rate 1, daily frozen reverse active electric energy rate 2, daily frozen reverse active electric energy rate 3, daily frozen reverse active electric energy rate 4, daily frozen one-quadrant reactive total electric energy indicating value, current one-quadrant reactive total electric energy, daily frozen four-quadrant reactive total electric energy indicating value, current four-quadrant reactive total electric energy, daily frozen forward active electric energy rate 1, daily frozen forward active electric energy rate 2, daily frozen forward active electric energy rate 3 and daily frozen forward active electric energy rate;

1B) recording the acquisition integrity rate m days after installation or upgrading;

1C) if m days before installation exist, comparing, accumulating the total days m since first installation and upgrade, the current days i, and the acquisition integrity F of the success rate of the data items_iThe total quantity N of the batch of electric energy meters represents the sum of the currently evaluated batch of equipment;

F_irepresenting the integral acquisition integrity rate after installation and upgrade; f_-iRepresenting the integral acquisition integrity rate before installation and upgrade; wherein, the calculation formula is:F_-iis calculated by the method of (1) and_ithe calculation mode is the same;

when | F_i-F_-iIf the total electric energy of the electric quantity acquisition service is greater than u, and u is greater than 1%, and data items including daily frozen reverse active total electric energy are all successfully acquired, judging that the electric quantity acquisition service is qualified for remote evaluation;

1D) if the data of m days before installation is not available, the data are compared for a new installation user, the total days m since the first installation and the upgrade, the current days i, and the acquisition integrity rate F of the success rate of the data items are accumulated_iThe total quantity N of the batch of electric energy meters represents the sum of the currently evaluated batch of equipment, and the batch is a collection of equipment of the same time period, the same manufacturer or newly put into operation batch of equipment;

the integral acquisition integrity rate before calculation and m days after installation and upgrade is calculated by the following formula:

when | F_iIf the total rate of the electric quantity acquisition service is greater than u, and if all the data items including daily frozen reverse active total electric energy are successfully acquired, the remote evaluation of the electric quantity acquisition service is judged to be qualified.

In the technical scheme, even if the metering device is newly installed, the new metering device needs to be compared with the replaced metering device, namely, the integral acquisition integrity rate before installation is obtained, so that the new metering device and the old metering device are compared, the analysis data is more comprehensive, and the two metering devices are better evaluated.

As a preferable technical means: in the step 2), the remote load acquisition success rate evaluation comprises the following steps:

2A) selecting data items for comprehensive acquisition and evaluation, wherein the data items comprise forward active total electric energy, active power, power factors, current data blocks and voltage data blocks, and the data items are obtained through recall test;

2B) recording the load acquisition integrity rate of m days after single equipment is installed or upgraded;

2C) and calculating the load acquisition integrity rate of all the equipment, wherein the calculation formula is as follows:

in the formula: q represents the total number of batches evaluated remotely, L represents the total number of areas where batch equipment is installed, E_ijAnd e_ijRespectively representing the number of the ith batch of equipment in the jth installation area and the total load acquisition complete rate quantity, and then evaluating the available load acquisition quantity of the system;

2D) when I is_FHCJ＞I_iIn which I_iAnd if the load acquisition integrity rate is the one-time load acquisition integrity rate of the whole province, judging that the load acquisition service of the batch of metering equipment is qualified for remote evaluation.

I_iThe success rate of average load acquisition of the whole province (average according to the terminal of each loaded acquisition task) is calculated by the system, and the system has the following calculation logic: the acquisition success rate for all meters at 96 load points per day (load points divided by total points).

As a preferable technical means: and m is 7 days. The 7 days are a week, including the rest day and the working day, the acquisition is more accurate, the calculation precision is improved, and the influence of excessive data on the calculation amount is avoided.

As a preferable technical means: in step 2), the remote evaluation of the full event collection service comprises the following steps:

3A) selecting event item information, comprising: overcurrent, meter opening cover, electric energy meter zero clearing, power failure, constant magnetic field interference, voltage loss, opening cover button, undervoltage, overvoltage, voltage unbalance, time correction, current loss, phase failure, power supply abnormity, cut-off, voltage reverse phase sequence, power flow reversal, overload, power factor lower limit exceeding, demand zero clearing, event zero clearing, programming, brake pulling, switch closing and total voltage loss;

3B) carrying out full event call and test on all events, determining acquisition success or failure, and recording to obtain event occurrence number data items;

3C) recording the number of all events as m, collecting and testing N times to obtain an m multiplied by N matrix N, wherein 1 represents that the event collection is successful, and 0 represents that the event collection is failed, and the matrix represents the collection success times of each event; using a function sum () to sum all the elements of the matrix;

k＝sum(sum(N))

3D) when I is_FHCJ＞I_iIn which I_iAnd if the threshold value of the full event basic acquisition integrity rate is set, judging that the remote evaluation result of the full event acquisition service of the batch is qualified.

Has the advantages that: the invention strictly audits and evaluates the newly installed and upgraded metering equipment, has high and comprehensive evaluation efficiency, effectively reduces the acquisition abnormity and the metering abnormity caused by new installation and upgrade, visually embodies the quality of the equipment, assists the overall manufacturer evaluation of the metering equipment and effectively discriminates the manufacturer capability. The newly installed and upgraded metering equipment is subjected to automatic function verification and upgraded batch quality evaluation, and the evaluation result is used as the basis for evaluating the running quality of the metering equipment, so that the quality of products and the success rate of upgrading are improved, the problem point is determined from multiple aspects, and improvement of equipment and software is helped;

an automatic evaluation flow is introduced to detect various service functions such as various electric quantity data items, load data items, full event support, various setting parameter items and the like, so that the manual operation and monitoring cost is reduced, the intelligent application level of the system is improved, the objectivity is improved, and the influence of subjective factors is reduced.

And the on-site operation service function capability after the metering equipment is installed and upgraded is comprehensively monitored, and the electric power is assisted.

Through evaluation of the remote service function of the metering equipment, the support of the remote service function of the new and old equipment is improved, and the improvement of non-metering service application of the electric energy meter is facilitated.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

The technical scheme of the invention is further explained in detail by combining the drawings in the specification.

As shown in fig. 1, the present invention comprises the steps of:

s01: acquiring installation and upgrade information of metering equipment; the method comprises the steps that automatic evaluation of unified service functions is uniformly carried out on metering equipment in a batch, and the batch can be equipment in the same supply manufacturer, equipment in the same upgrading time period, equipment in the same unit, equipment in the same area, equipment in the same scheme, equipment in the same bidding batch and equipment in the same delivery batch;

s02: according to the acquired metering equipment information, carrying out electric quantity acquisition service remote evaluation, load acquisition service remote evaluation and full event acquisition service remote evaluation on the corresponding metering equipment; each evaluation is described in detail below:

1. carrying out remote electric quantity acquisition and evaluation:

A) selecting 14 data items of daily frozen reverse active total electric energy, daily frozen reverse active electric energy rate 1, daily frozen reverse active electric energy rate 2, daily frozen reverse active electric energy rate 3, daily frozen reverse active electric energy rate 4, daily frozen one-quadrant reactive total electric energy indicating value, current one-quadrant reactive total electric energy, daily frozen four-quadrant reactive total electric energy indicating value, current four-quadrant reactive total electric energy, daily frozen forward active electric energy rate 1, daily frozen forward active electric energy rate 2, daily frozen forward active electric energy rate 3 and daily frozen forward active electric energy rate 4 to carry out comprehensive acquisition and evaluation;

B) recording the acquisition integrity rate m days after installation or upgrading;

C) if m days before installation exist, comparing, accumulating the acquisition integrity rate F of the 14 success rates since the total number m of days after the first installation and the upgrade, the current number i of days and the accumulated total number F of the success rates of the previous complaints_iThe total quantity N of the batch of electric energy meters represents the sum of the currently evaluated batch of equipment;

①calculating the integral acquisition integrity rate before installation and m days after upgrade;

②|F_i-F_-iif u is greater than 1%, and every data item such as daily frozen reverse active total electric energy is used successfully, and F_iJudging to be qualified;

D) if the data of m days before installation is not available, the data are compared for a new installation user, the total number of days m since the first installation and the upgrade, the current number of days i, and the acquisition integrity rate F of accumulating the 14 success rates of the complaints_iThe total quantity N of the batch of electric energy meters represents the sum of the currently evaluated batch of equipment, and the batch can be a collection of equipment of the same time period, the same manufacturer or newly put into operation batch of equipment;

①integral acquisition integrity rate before calculation and m days after installation and upgrade

②|F_iIf u is greater than the total collection rate, the total collection rate is equal to the average collection rate, the daily freezing reverse active power total electric energy and other data items are successfully collected, and F_iJudging to be qualified;

2. carrying out remote load acquisition success rate evaluation:

A) selecting items of positive active total electric energy, active power, power factors, current data blocks and voltage data blocks to carry out comprehensive acquisition and evaluation, and carrying out recall and evaluation;

B) recording the load collection integrity rate m days after installation or upgrade, wherein m is 7 days

C) The load collection integrity rate may be:

in the formula: q represents the total number of batches evaluated remotely, L represents the total number of areas where the batch equipment is installed, Nij, E_ijAnd e_ijRespectively representing the number of the ith batch of equipment in the jth installation area and the total load collection complete rate, and then evaluating the available load collection amount of the system.

D)I_FHCJ＞I_iIn which I_iIf the load is the load collection integrity rate of one time of the whole province, judging that the equipment integrity rate of the batch is qualified;

3. and (3) carrying out integrity evaluation of the full event data item:

A) selecting all kinds of full events of overcurrent (ABC three-phase), meter opening cover, electric energy meter zero clearing, power failure, constant magnetic field interference, voltage loss (ABC three-phase), opening cover button, undervoltage (ABC three-phase), overvoltage (ABC three-phase), voltage unbalance, timing, current loss (ABC three-phase), phase failure (ABC three-phase), power supply abnormity, current failure (ABC three-phase), voltage phase inversion sequence, power flow reversal, overload (ABC three-phase), power factor lower limit (ABC three-phase), demand zero clearing, event zero clearing, programming, brake pulling, switch closing and full voltage loss;

B) carrying out full event calling on all events, mainly taking event occurrence number data items, determining whether the acquisition is successful or failed, and recording;

C) recording the number of all events as m, collecting and testing N times to obtain an m multiplied by N matrix N, wherein 1 represents that the event collection is successful, and 0 represents that the event collection is failed, and the matrix can respectively represent the collection success times of each event; using a function sum () to sum all the elements of the matrix;

k＝sum(sum(N))

D)I_FHCJ＞I_iin which I_iIf the full event basic acquisition integrity rate is set, judging that the full event acquisition result of the batch is qualified;

s03: judging whether the remote evaluation of the electric quantity acquisition service, the remote evaluation of the load acquisition service and the remote evaluation of the full event acquisition service are all qualified, if so, determining that the electric quantity acquisition service is qualified; if not, determining that the product is unqualified; the qualification is the qualification corresponding to the newly installed metering equipment or the qualification of the upgrading of the metering equipment;

s04: recording and processing unqualified metering equipment; the processing comprises replacement and upgrading again.

The technical scheme carries out automatic function verification and batch quality evaluation after upgrading on newly-installed and upgraded metering equipment, and the evaluation result is used as the basis for evaluating the running quality of the metering equipment, so that good effects can be achieved in the aspects of production, management and the like:

1. an automatic evaluation flow is introduced to detect various service functions such as various electric quantity data items, load data items, full event support, various setting parameter items and the like, so that the manual operation and monitoring cost is reduced, and the intelligent application level of the system is improved.

2. The method has the advantages that the on-site operation service function capability after the metering equipment is installed and upgraded is comprehensively monitored, the electric power company is assisted to strengthen the full-life management capability of the metering equipment, the quality control capability is improved, and the traceability and accountability are carried out on quality problems provided by manufacturers.

3. Through evaluation of the remote service function of the metering equipment, the support of the remote service function of the new and old equipment is improved, and the improvement of non-metering service application of the electric energy meter is facilitated.

The effects of the specific data will be described further below.

Evaluation case result analysis:

analysis was performed for 5 batches of equipment according to month 5 and 6 of 2020:

according to the example evaluation result, the technical scheme has feasibility, provides the method for evaluating the service function of the metering equipment, provides support for the evaluation of manufacturers on the basis, and saves a large amount of manpower and material resources. The method has certain innovation and practicability, can be gradually applied to a quality evaluation system of a metering equipment manufacturer, and lays a foundation for the development and improvement of electric energy meter quality control in future.

The method for automatically evaluating quality of metering equipment remote service function shown in fig. 1 is a specific embodiment of the present invention, already embodies the substantial features and progress of the present invention, and can make equivalent modifications in shape, structure and the like according to the practical use requirements and under the teaching of the present invention, all falling within the scope of protection of the present scheme.