CN103150690A - Client side power supply quality index calculation system and method based on SMART (specific, measurable, attainable, realistic and time-based) criterion - Google Patents
Client side power supply quality index calculation system and method based on SMART (specific, measurable, attainable, realistic and time-based) criterion Download PDFInfo
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Abstract
本发明的基于SMART准则的客户侧供电质量指标计算系统，包括用户、智能电表和供电质量指标计算服务器，特征在于：智能电表连接有用于无线传输用户用电信息的采集终端，所述采集终端依次通过GPRS网络、Internet网络与供电质量指标计算服务器相通信。本发明的客户侧供电质量指标运算方法，包括：a).用电信息采集；b).用电信息发送；c).用电数据接收和处理；d).计算电压合格率；e).计算客户谐波畸变率；f).计算三相电压不平衡；g).供电可靠性检测；h).电能质量问题处理。本发明的系统和运算方法：真实、客观反映供电质量品质，建立供电质量评价指标体系，能准确反映供电可靠性的真实状况。
The client-side power supply quality indicator calculation system based on the SMART criterion of the present invention includes a user, a smart meter and a power supply quality indicator calculation server, and is characterized in that: the smart meter is connected with a collection terminal for wireless transmission of user electricity consumption information, and the collection terminals are in turn Through the GPRS network and the Internet network, it communicates with the power supply quality index calculation server. The client-side power supply quality index calculation method of the present invention includes: a). Collecting power consumption information; b). Sending power consumption information; c). Receiving and processing power consumption data; d). Calculating the qualified rate of voltage; e). Calculate customer harmonic distortion rate; f). Calculate three-phase voltage unbalance; g). Power supply reliability detection; h). Power quality problem handling. The system and calculation method of the present invention: truly and objectively reflect the quality of power supply, establish a power supply quality evaluation index system, and can accurately reflect the real situation of power supply reliability.
Description
Technical field
The present invention relates to a kind of customer side power supply quality indication computing system and method based on the SMART criterion, in particular, relate in particular to a kind of customer side power supply quality indication computing system and the method based on the SMART criterion that can effectively supervise and improve power pack service quality.
Background technology
Electric power has very important status in social economy, be the basic energy resource of national economy, and the development of national economy is played important support and guaranteeing role.Simultaneously, electric power is also the necessary energy during broad masses of the people live.So the quality of electricity market operation direct relation safe operation and the sound development situation of national economy, is matters vital to national well-being and the people's livelihood.Power supply department is all being played the part of important role from start to finish as bridge and tie between electricity power enterprise and electric power terminal user in electricity market.In history, long-term electricity shortage had once been gone through by China, and was once becoming the bottleneck that restricts China's economic development.In new power system reform process, generating and power supply are separated, and power supply enterprise can only by buy the electric energy of electricity power enterprise, then turn and supply with the user.Therefore, electric energy is unique core product that power supply enterprise offers client.Simultaneously, what the present electricity price of China was carried out is national listed power price, and power supply enterprise does not have the electricity price power to make decision.Thereby power supply enterprise both can't the Implement Core product strategy, again can't the exercise price strategy.So power supply enterprise is not in the situation that there is no the electricity price power to make decision, particularly realize that in electricity power enterprise the electricity market of directly powering to the large electricity consumer under the new situation, uniquely can control and can accomplish by the effort of enterprise self, rely on exactly perfect supply network and service system, the service of high-efficiency high-quality is provided to the user.Only in this way, power supply enterprise could obtain larger development space in market economy.
So, from sight long-range and development, power supply enterprise must transfer to focus in power grid construction and services, establishes market-oriented, the service awareness of customer-centric is for solid foundation is established in the continuing of electricity market, healthy, steady growth and development.For further innovate service pattern, Standard Service behavior, lifting service level, improve the good service permanent mechanism.The construction of customer side power supply quality supervisory system is as one of important content of ten behaves, to be further customer needs centered, market-oriented, from objective, real angle reaction power supply quality, constantly update service theory, innovate service pattern, the enterprise objective of practicing " four services ".
The major significance of project construction is embodied in following several aspect: (1) adapts to intelligent grid and builds new demand.Improving power supply reliability, improve the quality of power supply, the customer service of high-quality is provided, is the main target that intelligent grid is built.Intelligent grid is built and is implemented, and need to take into full account the improvement to client's power supply quality, and the customer side power supply quality of intelligent grid is made comprehensive assessment, and Reasonable Orientation provides the evaluation foundation of science for intelligent grid safety, high-quality, economical operation and development.(2) satisfy company's sustainable development requirement.Power supply quality is as the important evidence of service quality, and improving the power supply quality level, strengthening the lean management is the powerful guarantee of in-depth " rainbow engineering " good service, is also the requirement of building the digitizing marketing, strengthening company's capability of sustainable development; (3) promote the development of power marketing business cooperation.Customer side power supply quality appraisement system is by the test and appraisal to all kinds of power quality indexs such as voltage deviation, voltage fluctuation, frequency departures, percentage of head rice and the accuracy rate of every image data such as the voltage of further raising power information acquisition system, electric current, thus promote the lifting (4) of every operating mode index to enrich power supply quality evaluation study achievement.In the face of the quality of power supply, the power supply reliability requirement that improves constantly, adopt which type of evaluation model to promote better the power industry that is lifted at of customer side power supply quality that precedent is not also arranged.
Summary of the invention
The present invention provides a kind of customer side power supply quality indication computing system and the method based on the SMART criterion that can effectively supervise and improve power pack service quality in order to overcome the shortcoming of above-mentioned technical matters.
Customer side power supply quality indication computing system based on the SMART criterion of the present invention, the power supply quality index calculation server that comprises user, intelligent electric meter and a computing and control action, its special feature is: described intelligent electric meter is connected with the acquisition terminal for wireless transmission user power utilization information, described acquisition terminal communicates by GPRS network and power supply quality index calculation server successively, and GPRS network is carried out protocol conversion by the GGSN gateway.
Intelligent electric meter is realized the measurement to the every power information of user's side, and sends the data of measuring to acquisition terminal, acquisition terminal with the user power utilization information that receives through wireless network transmissions to power supply quality index calculation server.Power supply quality index calculation server carries out computing to the data that receive, in order to the quality of power supply and the power supply reliability of customer side judged.
Customer side power supply quality indication computing system based on the SMART criterion of the present invention, comprise the sales service application server that communicates by Intranet with power supply quality index calculation server, power information acquisition server and.
Customer side power supply quality indication computing system based on the SMART criterion of the present invention, described intelligent electric meter (7) can be realized magnitude of voltage, current value, the voltage-phase of customer power supply, the measurement of harmonic signal, and intelligent electric meter and acquisition terminal (8) communicate by the RS485 bus; Be provided with the GPRS communication module of realizing wireless data transceiving on acquisition terminal.
The operational method of the customer side power supply quality indication computing system based on the SMART criterion of the present invention is characterized in that, comprises the following steps:
A). the power information collection, by intelligent electric meter (7) collection user's (9) power supply instantaneous voltage, electric voltage frequency, day rate of qualified voltage, phase angles data, harmonic data, power failure information; B). power information sends, and acquisition terminal sends the data of intelligent electric meter collection by the GPRS communication module; C). electricity consumption data receiver and processing, power supply quality index calculation server receives by GPRS network the data that acquisition terminal sends, and the line correlation of going forward side by side calculates and processes, in order to estimate the quality of power supply and the power supply reliability of user's side; D). the calculating voltage qualification rate according to the mode of connection, is the mean value of A, C two-phase qualification rate for its total voltage qualification rate of client of phase three-wire three; Its total voltage qualification rate of client for three-phase and four-line is A, B, C three-phase qualification rate mean value; By the data pre-service of power supply quality index calculation server, realize the calculating of three-phase qualification rate is gathered, obtain total rate of qualified voltage client's every day; E). the computing client percent harmonic distortion, calculate hour percent harmonic distortion according to each odd harmonic containing ratio in per hour, gather a hour total percent harmonic distortion according to the mode of connection; Client's day percent harmonic distortion is 24 percent harmonic distortion maximal values every day; The data pre-service realizes that the calculating to the three phase harmonic aberration rate gathers and to the gathering of 24 percent harmonic distortions every day, obtains total percent harmonic distortion of client's day; F). calculate imbalance of three-phase voltage, phase three-wire three is the Voltage unbalance rate of A, C two-phase, and three-phase and four-line is the Voltage unbalance rate of A, B, C three-phase, per hour calculates once; The imbalance of three-phase voltage rate of client every day is the maximal value of 24 three-phase imbalance rates every day; G). power supply reliability detects, and power supply quality index calculation server calculates user's every day or power supply reliability per month, the average power off time of user and the average frequency of power cut of user according to the data that receive; H). power quality problem is processed, and the judgement quality of power supply is underproof to be occurred and produces relevant or be correlated with distribution, if relevant to production, processed problem and is implemented reason by production division; If department is relevant to distribution, processes problem and implement reason by distribution department; I). inquiry service, can and inquire about for electrical stability user's the quality of power supply by logon server, estimate and instruct in order to the service of power supply department is made.
The invention has the beneficial effects as follows: customer side power supply quality indication computing system and operational method based on the SMART criterion of the present invention: (1) is based on comprehensive, the objectively monitoring of customer side data realization to power supply quality, the power supply quality supervisory system relies on the customer side basis electricity consumption data that gather, the monitoring point is extended to customer side from traditional transformer station, the public platform district side that becomes, true from client's angle, objectively respond the power supply quality quality, for power grid construction, operation and transformation provide decision-making foundation.(2) according to comprehensive, objective, practical, typical evaluation index selection principle, set up the power supply quality assessment indicator system of classification, power supply quality is monitored objectively and estimated, clear and definite power supply quality is estimated leading indicator and evaluation criterion.(3) realize take the power failure information real-time automatic monitoring of terminal power failure item as the basis, traditional power supply reliability index is calculated needed power-off event and is depended on manual entry, may produce error in data in Input Process, even produce problems such as reporting by mistake, fail to report, cause the accuracy of power supply reliability achievement data to descend, can not accurately reflect the real conditions of power supply reliability.Simultaneously, because the manual maintenance power-off event has certain delay, can not effectively be satisfied for the real-time of power failure information monitoring.Customer side power supply quality supervisory system utilizes stopping of sending on the power information acquisition terminal item that powers on to come the real-time judge scene whether power-off event occurs, and has effectively avoided power failure information the problem such as to report, fail to report by mistake, simultaneously, has also guaranteed the ageing of power failure information.(4) utilize the functions such as workform management, set up comprehensive PDCA power supply quality closed loop management, customer side power supply quality supervisory system has effectively promoted the collaborative works of relevant departments in power supply quality work such as marketing, production, distribution, covers whole flow processs of power supply quality monitoring comprehensively.Utilize the application functions such as workform management, setting up in advance has control, has afterwards and analyze and constantly promote the PDCA circulation management system of power supply quality by effective rectification in planned, thing, give full play to the effect of supervisory system in full company scope.The construction of customer side power supply quality Inspect-estimate System, the contact of having strengthened marketing and the departments such as production, distribution is interactive, really realized customer needs centered, market-oriented, organize intensive efficient, management unified standard, information shared resources, the collaborative orderly Novel marketing organizational framework of work, realize system innovation, management innovation and the service innovation of marketing with technological innovation.
Description of drawings
Fig. 1 is the schematic diagram of customer side power supply quality indication computing system of the present invention;
Fig. 2 is the operational method process flow diagram of customer side power supply quality indication computing system of the present invention;
Fig. 3 is the process flow diagram of power quality problem treatment step in the present invention;
Fig. 4 is the system figure of customer side power supply quality evaluation index in the present invention.
In figure: 1 sales service application server, 2 power information acquisition servers, 3 power supply quality index calculation servers, 4 Intranets, 5 GGSN gateways, 6 GPRS network, 7 intelligent electric meters, 8 acquisition terminals, 9 users.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, provided customer side power supply quality index of the present invention and calculated the schematic diagram of the decorum, it comprise sales service application server 1, power information acquisition server 2, power supply quality index calculation server 3,, Intranet 4, GGSN gateway 5, GPRS network 6, intelligent electric meter 7, acquisition terminal 8, user 9.The user is the client.Intelligent electric meter 7 is arranged in client's supply line, is used for realizing the measurement of user power utilization information, and intelligent electric meter 7 to acquisition terminal 8, finally sends by the power information of acquisition terminal 8 with the client communication that gathers with wireless form.The data that acquisition terminal 8 sends transfer in power supply quality index calculation server 3 through GPRS network 6, Intranet 4, after carrying out computing and analysis by the data of 3 pairs of user's sides of power supply quality index calculation server, draw the quality of power supply and the power supply reliability of user's side.
Shown GPRS network 6 is carried out protocol conversion with Intranet 4 by the GGSN gateway.Communicate by Intranet 4 between sales service application server 1, power information acquisition server 2 and power supply quality index calculation server 3.
Body series adopts the SMART design criteria to build customer side power supply quality assessment indicator system.SMART is writing a Chinese character in simplified form of forming of the initial letter of five words, these five words are: specific (Specific), measurable (Measurable), available (Attainable), (Relevant) that is correlated with, traceable (Trackable).Specifically (Specific), index system is the objective description of essential characteristic, composition structure and inscape thereof to evaluation object, and is certain specific activity service of estimating.For the purpose of appraisal, index system should have specificity and technicality.Measurable (Measurable), the measurability of evaluation index refers to: for index evaluation, corresponding standard should be arranged, as unified yardstick, weigh the performance that is evaluated object with identical standard.It not is to emphasize it must is quantitative target that the measurability here requires, as long as set up detailed evaluation criterion for the measurement of qualitative index, thinks measurable yet.The concept of index is correct, connotation is clear, is the prerequisite of setting up detailed evaluation criterion.Detailed evaluation criterion can be avoided as far as possible or reduce subjective judgement, guarantees the coordinating and unifying between inner each index of index system.Available (Attainable), the design of index system should be taken into account the possibility that the checking desired data obtains.If the difficulty that can not obtain or obtain in reality for the data of an index investigation is very large, cost is very high, the operability of this index just is worth doubting so.These acquisition mode and channels of investigating data should be paid attention to when Index System Design.In practical operation, there is the acquisition of quite a few data to have difficulty, particularly some qualitative indexes, can adopt some approximation methods to obtain data.(Relevant) that is correlated with, each index of assessment indicator system should be correlated with, and index system is not piling up of many indexs, but is made of one group of index that has each other organic connections, has certain internal logical relationship between index.The inherent Relativity aspect here refers to that each index should be relevant with the purpose of estimating, for estimating the aim service of activity; Refer to that on the other hand the various aspects that the reply of each Index Theory and method is evaluated object describe, and has relevance between them, can complement one another, mutually verify, contain, contain and make their intension overlapping but should note not allowing each index too much information occur.
As shown in Figure 2, provided the operational method process flow diagram of customer side power supply quality indication computing system of the present invention, it comprises the following steps:
A). the power information collection, by intelligent electric meter (7) collection user's (9) power supply instantaneous voltage, electric voltage frequency, day rate of qualified voltage, phase angles data, harmonic data, power failure information;
B). power information sends, and acquisition terminal sends the data of intelligent electric meter collection by the GPRS communication module;
C). electricity consumption data receiver and processing, power supply quality index calculation server receives by GPRS network the data that acquisition terminal sends, and the line correlation of going forward side by side calculates and processes, in order to estimate the quality of power supply and the power supply reliability of user's side;
D). the calculating voltage qualification rate according to the mode of connection, is the mean value of A, C two-phase qualification rate for its total voltage qualification rate of client of phase three-wire three; Its total voltage qualification rate of client for three-phase and four-line is A, B, C three-phase qualification rate mean value; By the data pre-service of power supply quality index calculation server, realize the calculating of three-phase qualification rate is gathered, obtain total rate of qualified voltage client's every day;
E). the computing client percent harmonic distortion, calculate hour percent harmonic distortion according to each odd harmonic containing ratio in per hour, gather a hour total percent harmonic distortion according to the mode of connection; Client's day percent harmonic distortion is 24 percent harmonic distortion maximal values every day; The data pre-service realizes that the calculating to the three phase harmonic aberration rate gathers and to the gathering of 24 percent harmonic distortions every day, obtains total percent harmonic distortion of client's day;
F). calculate imbalance of three-phase voltage, phase three-wire three is the Voltage unbalance rate of A, C two-phase, and three-phase and four-line is the Voltage unbalance rate of A, B, C three-phase, per hour calculates once; The imbalance of three-phase voltage rate of client every day is the maximal value of 24 three-phase imbalance rates every day;
G). power supply reliability detects, and power supply quality index calculation server calculates user's every day or power supply reliability per month, the average power off time of user and the average frequency of power cut of user according to the data that receive;
H). power quality problem is processed, and the judgement quality of power supply is underproof to be occurred and produces relevant or be correlated with distribution, if relevant to production, processed problem and is implemented reason by production division; If department is relevant to distribution, processes problem and implement reason by distribution department;
As shown in Figure 3, provided the process flow diagram of power quality problem treatment step;
I). inquiry service, can and inquire about for electrical stability user's the quality of power supply by logon server, estimate and instruct in order to the service of power supply department is made.
As shown in Figure 4, provided the system figure of customer side power supply quality evaluation index in the present invention, the index of the shown evaluation quality of power supply comprises voltage deviation rate, imbalance of three-phase voltage, voltage harmonic aberration rate, voltage fluctuation and flicker and frequency departure etc.The index of power supply reliability comprises the average power off time of user, power supply reliability, the average frequency of power cut of user, user's mean failure rate frequency of power cut, average pre-frequency of power cut, the system blackout equivalence hourage of arranging of user.
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| CN107392437A (en) * | 2017-06-29 | 2017-11-24 | 国网天津市电力公司 | Power marketing digitizes management and control index system and method for exhibiting data |
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| CN105160445A (en) * | 2015-01-19 | 2015-12-16 | 国家电网公司 | Evaluation system and method for power supply reliability for important user |
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| CN108226664A (en) * | 2016-12-16 | 2018-06-29 | 中国矿业大学 | A kind of user side electric energy quality synthesis evaluation system and method |
| CN107392437A (en) * | 2017-06-29 | 2017-11-24 | 国网天津市电力公司 | Power marketing digitizes management and control index system and method for exhibiting data |
| CN110571925A (en) * | 2019-08-19 | 2019-12-13 | 西安理工大学 | A method for analyzing power quality using distribution network monitoring terminal data |
| CN110713560A (en) * | 2019-10-12 | 2020-01-21 | 国网北京市电力公司 | Monitoring method of station area management based on low-voltage power line broadband carrier communication of electric energy meter |
| CN111861796A (en) * | 2020-07-30 | 2020-10-30 | 江苏华旭电力设计有限公司 | Method for comprehensively evaluating electric energy quality of regional power distribution network |
| CN115115282A (en) * | 2022-08-25 | 2022-09-27 | 国网安徽省电力有限公司巢湖市供电公司 | Data analysis method for high-voltage transformer area power system |
| CN116523547A (en) * | 2023-07-03 | 2023-08-01 | 厦门闽投科技服务有限公司 | Digital marketing service management platform |
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Application publication date: 20130612 |