CN108009697A - A kind of comprehensive estimation method of power quality controlling scheme - Google Patents
A kind of comprehensive estimation method of power quality controlling scheme Download PDFInfo
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- CN108009697A CN108009697A CN201610971965.4A CN201610971965A CN108009697A CN 108009697 A CN108009697 A CN 108009697A CN 201610971965 A CN201610971965 A CN 201610971965A CN 108009697 A CN108009697 A CN 108009697A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000011156 evaluation Methods 0.000 claims abstract description 41
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 27
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 4
- 238000011234 economic evaluation Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- 238000010606 normalization Methods 0.000 claims description 3
- 238000001308 synthesis method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- G06Q10/06395—Quality analysis or management
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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
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/80—Management or planning
- Y02P90/82—Energy audits or management systems therefor
Abstract
The present invention proposes a kind of comprehensive estimation method of power quality controlling scheme, realizes following functions：Power quality controlling schemes synthesis evaluation index system is established, combination weights are carried out to evaluation index with reference to the strong analytic hierarchy process (AHP) of subjectivity and the strong entropy weight analysis method of objectivity, then realized by Grey Incidence and Scientific evaluation is carried out to system under evaluation.The present invention proposes a kind of comprehensive estimation method of power quality controlling scheme, and the effective comprehensive energy efficiency for assessing power quality controlling scheme is horizontal.
Description
Technical field
The present invention relates to a kind of comprehensive estimation method of power quality controlling scheme, belongs to power distribution network management of power supply and power utilization neck
Domain.
Background technology
In modern power systems, non-linear, impact, fluctuation and out-of-balance load substantial increase, various power electronics
The application of equipment is more and more extensive, causes the power quality problems such as Voltage Drop, fluctuation and flickering, harmonic wave to be on the rise,
Extreme influence is produced to terminal power consumer, is interrupted as product quality declines even production process, causes huge economic loss.
Now, requirement of the user to power quality is higher and higher, and the only resource for improving existing issue is to carry out electric energy
Quality controlling, its main target are：
(1) influence of the pollution sources access to power grid is reduced, improves power grid power quality index；
(2) improve pollution sources enterprises miscellaneous equipment operating condition, improve working life, reduce failure rate；
(3) energy is saved, reduces unnecessary loss；
(4) improve the service condition of nonlinear-load, improve work efficiency；
(5) influence of the pollution sources to proximal subscribers is reduced, reduces the dispute and complaint of power quality accident.
The present invention provides a kind of comprehensive estimation method of power quality controlling scheme, it is comprehensive to establish power quality controlling scheme
Evaluation index system is closed, it is comprehensive to evaluation index progress with reference to the strong analytic hierarchy process (AHP) of subjectivity and the strong entropy weight analysis method of objectivity
The power of tax is closed, then is realized by Grey Incidence and Scientific evaluation is carried out to system under evaluation.The present invention proposes a kind of power quality and controls
The comprehensive estimation method of reason scheme, the effective comprehensive energy efficiency for assessing power quality controlling scheme are horizontal.
The content of the invention
It is an object of the present invention to provide a kind of comprehensive estimation method of power quality controlling scheme, establish power quality and control
Schemes synthesis evaluation index system is managed, assessment is referred to reference to the strong analytic hierarchy process (AHP) of the subjectivity entropy weight analysis method strong with objectivity
Mark carries out combination weights, then is realized by Grey Incidence and carry out Scientific evaluation to system under evaluation.
To reach this purpose, the present invention uses following scheme.
A kind of comprehensive estimation method of power quality controlling scheme, including：
1. establish power quality controlling schemes synthesis evaluation index system；
2. combining expert opinion, the weight of each index is calculated according to analytic hierarchy process (AHP)；
3. the weight of each index is calculated according to E-government Network；
4. the weights of binding hierarchy analytic approach and E-government Network calculate comprehensive weight；
5. the comprehensive energy efficiency based on Grey Incidence assessment power quality controlling scheme is horizontal；
Wherein, with reference to expert opinion, the weight of each index is calculated according to analytic hierarchy process (AHP) to be included：
(1) construction contrast matrix, wherein n is index quantity
(2) consistency check is carried out to matrix
Calculate the Maximum characteristic root λ max of contrast matrix and to answered feature vector ξ, one is carried out according to coincident indicator
Cause property is examined.Consistency check is determined by calculating consistency ration CR, if CR ＜ 0.1, which are matrix, meets that uniformity will
Ask, then feature vector (after normalization) weight vector the most determined by analytic hierarchy process (AHP)；Reconfigured if it can't pass to comparing
Battle array.Wherein,
Each index weights determined by analytic hierarchy process (AHP) are
A=(aj)1×n=ξmax (4)
Wherein, the weight of each index is calculated according to E-government Network to be included：
(1) standardization of data.Each evaluation index original data are standardized, it is assumed that there is n assessment to refer to
Mark, m assessment system, raw data matrix are
Yij=(yij)m×n (5)
New evaluations matrix is obtained after standardization
Fij=(fij)m×n (6)
Wherein
(2) entropy weight of each evaluation index is calculated.The entropy weight of j-th of evaluation index is defined as：
Wherein Hj represents the entropy of j-th of evaluation index, and calculation formula is
Wherein, the weights of binding hierarchy analytic approach and E-government Network calculate comprehensive weight and include：
Combination weights are carried out to index using multiplicative synthesis method, calculation formula is：
Wherein, the comprehensive energy efficiency level based on Grey Incidence assessment power quality controlling scheme includes：
(1) development of judgment matrix.Define the degree of association and judge judgment matrix R(m+1)×n, according to the index assessed resolution
Determine ideal indicator to Ro=(r01 r02…r0n), the integrated decision-making for carrying out multiple target be compare in m scheme n element and
The degree of association of ideal indicator vector, then grey relational grade judgment matrix can be obtained：
(2) i-th of scheme and grey incidence coefficient of the ideal scheme on j-th of index are calculated.
Wherein, ρ is resolution ratio, usually takes 0.5.
(3) calculating correlation.Define riFor evaluation scheme and the degree of association of ideal indicator scheme.
(4) compared according to the numerical value of the degree of association, analyze the quality of resolution to be assessed.
The beneficial effects of the invention are as follows：Power quality controlling schemes synthesis evaluation index system is established, it is subjective by combining
Property strong analytic hierarchy process (AHP) with the strong entropy weight analysis method of objectivity these indexs are carried out with combination weights, it is then real by Grey Incidence
Now to the comprehensive assessment of power quality controlling scheme.
Brief description of the drawings
Fig. 1 is the comprehensive assessment flow chart of power quality controlling scheme.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
The present invention provides a kind of comprehensive estimation method of power quality controlling scheme, the described method comprises the following steps：
Step 1：Power quality controlling schemes synthesis evaluation index system is established, the index system includes：Power quality
The technical evaluation index of resolution, the economic evaluation index of power quality controlling scheme, power quality controlling scheme
Adaptability teaching index；
The technical evaluation index of the power quality controlling scheme includes：Percent harmonic distortion, voltage deviation, three-phase are uneven
Weighing apparatus degree, voltage fluctuation, line loss per unit；
The economic evaluation index of the power quality controlling scheme includes：Equipment cost, year operation and maintenance cost；
The adaptability teaching index of the power quality controlling scheme includes：Floor space；
Step 2：With reference to expert opinion, according to the weight of each index of analytic hierarchy process (AHP) calculating；
The step 2 includes：
Step 2-1：Construction contrast matrix, wherein n is index quantity
Step 2-2：Consistency check is carried out to matrix
Calculate the Maximum characteristic root λ max of contrast matrix and to answered feature vector ξ, one is carried out according to coincident indicator
Cause property is examined.Consistency check is determined by calculating consistency ration CR, if CR ＜ 0.1, which are matrix, meets that uniformity will
Ask, then feature vector (after normalization) weight vector the most determined by analytic hierarchy process (AHP)；Reconfigured if it can't pass to comparing
Battle array.Wherein,
Each index weights determined by analytic hierarchy process (AHP) are
A=(aj)1×n=ξmax (17)
Step 3：The weight of each index is calculated according to E-government Network；
The step 3 includes：
Step 3-1：The standardization of data.Each evaluation index original data are standardized, it is assumed that there are n to comment
Estimate index, m assessment system, raw data matrix is
Yij=(yij)m×n (18)
New evaluations matrix is obtained after standardization
Fij=(fij)m×n (19)
Wherein
Step 3-2：Calculate the entropy weight of each evaluation index.The entropy weight of j-th of evaluation index is defined as：
Wherein Hj represents the entropy of j-th of evaluation index, and calculation formula is
Step 4：The weights of binding hierarchy analytic approach and E-government Network calculate comprehensive weight；
The step 4 carries out combination weights using multiplicative synthesis method to index, and calculation formula is：
Step 5：Power quality controlling schemes synthesis efficiency is assessed based on Grey Incidence；
The step 5 includes：
Step 5-1：Development of judgment matrix.Define the degree of association and judge judgment matrix R(m+1)×n, assessed according to resolution
Index determine ideal indicator to Ro=(r01 r02…r0n), the integrated decision-making for carrying out multiple target is to compare in m scheme n
The degree of association of element and ideal indicator vector, then grey relational grade judgment matrix can be obtained：
Step 5-2：Calculate i-th of scheme and grey incidence coefficient of the ideal scheme on j-th of index.
Wherein, ρ is resolution ratio, usually takes 0.5.
Step 5-3：Calculating correlation.Define riFor evaluation scheme and the degree of association of ideal indicator scheme.
Step 5-4：Compared according to the numerical value of the degree of association, analyze the quality of resolution to be assessed；
By implementing above step, power quality controlling schemes synthesis evaluation index system is established, strong with reference to subjectivity
Analytic hierarchy process (AHP) carries out evaluation index combination weights with the strong entropy weight analysis method of objectivity, then is realized and treated by Grey Incidence
Assessment system carries out Scientific evaluation.
Claims (5)
- A kind of 1. comprehensive estimation method of power quality controlling scheme, it is characterised in that：The system comprises following steps：Step 1：Power quality controlling schemes synthesis evaluation index system is established, the index system includes：Power quality controlling The adaptation of the technical evaluation index of scheme, the economic evaluation index, power quality controlling scheme of power quality controlling scheme Property evaluation index；The technical evaluation index of the power quality controlling scheme includes：Percent harmonic distortion, voltage deviation, three-phase imbalance Degree, voltage fluctuation, line loss per unit；The economic evaluation index of the power quality controlling scheme includes：Equipment cost, year operation and maintenance cost；The adaptability teaching index of the power quality controlling scheme includes：Floor space；Step 2：With reference to expert opinion, according to the weight of each index of analytic hierarchy process (AHP) calculating；Step 3：The weight of each index is calculated according to E-government Network；Step 4：The weights of binding hierarchy analytic approach and E-government Network calculate comprehensive weight；Step 5：Power quality controlling schemes synthesis efficiency is assessed based on Grey Incidence.
- 2. the comprehensive estimation method of power quality controlling scheme according to claim 1, it is characterised in that：The step 2 Including：Step 2-1：Construction contrast matrix, wherein n is index quantityStep 2-2：Consistency check is carried out to matrixCalculate the Maximum characteristic root λ max of contrast matrix and to answered feature vector ξ, uniformity is carried out according to coincident indicator To examine, consistency check is determined by calculating consistency ration CR, if CR ＜ 0.1, which are matrix, meets coherence request, Then feature vector (after normalization) weight vector the most determined by analytic hierarchy process (AHP)；Reconfigured if it can't pass to comparing battle array. Wherein,Each index weights determined by analytic hierarchy process (AHP) areA=(aj)1×n=ξmax 。
- 3. the comprehensive estimation method of power quality controlling scheme according to claim 1, it is characterised in that：The step 3 In, it is characterised in that：The step 3 includes：Step 3-1：The standardization of data.Each evaluation index original data are standardized, it is assumed that there is n assessment to refer to Mark, m assessment system, raw data matrix areYij=(yij)m×nNew evaluations matrix is obtained after standardizationFij=(fij)m×nWhereinStep 3-2：Calculate the entropy weight of each evaluation index.The entropy weight of j-th of evaluation index is defined as：Wherein Hj represents the entropy of j-th of evaluation index, and calculation formula is。
- 4. the comprehensive estimation method of power quality controlling scheme according to claim 1, it is characterised in that：The step 4 In, it is characterised in that：The step 4 carries out combination weights using multiplicative synthesis method to index, and calculation formula is：。
- 5. the comprehensive estimation method of power quality controlling scheme according to claim 1, it is characterised in that：The step 5 In, it is characterised in that：The step 5 includes：Step 5-1：Development of judgment matrix.Define the degree of association and judge judgment matrix R(m+1)×n, according to the finger assessed resolution Mark determines ideal indicator to Ro=(r01 r02 … r0n), the integrated decision-making for carrying out multiple target is to compare n member in m scheme The degree of association of element and ideal indicator vector, then grey relational grade judgment matrix can be obtained：Step 5-2：Calculate i-th of scheme and grey incidence coefficient of the ideal scheme on j-th of index.Wherein, ρ is resolution ratio, usually takes 0.5Step 5-3：Calculating correlation.Define riFor evaluation scheme and the degree of association of ideal indicator scheme；Step 5-4：Compared according to the numerical value of the degree of association, analyze the quality of resolution to be assessed.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898890A (en) * | 2018-08-29 | 2018-11-27 | 中国民用航空总局第二研究所 | Blank pipe operational efficiency grade appraisal procedure and its device |
| CN109284936A (en) * | 2018-10-11 | 2019-01-29 | 国网湖北省电力有限公司电力科学研究院 | A kind of electricity quality evaluation method based on the output of cloud graph visualization |
| CN109307854A (en) * | 2018-10-29 | 2019-02-05 | 中国电力科学研究院有限公司 | A kind of electric energy metering device comprehensive estimation method and system |
| CN110474342A (en) * | 2019-09-25 | 2019-11-19 | 国网青海省电力公司海西供电公司 | A kind of method that disturbance regulation effect assessment models building temporarily drops in distribution network voltage |
| CN111191907A (en) * | 2019-12-24 | 2020-05-22 | 嘉兴恒创电力设计研究院有限公司 | Comprehensive energy station energy efficiency evaluation method based on analytic hierarchy process |
| CN111241664A (en) * | 2020-01-03 | 2020-06-05 | 深圳供电局有限公司 | Distribution transformer area voltage problem treatment scheme evaluation method |
| CN111489040A (en) * | 2020-04-22 | 2020-08-04 | 云南电网有限责任公司 | Voltage sequence comprehensive evaluation method based on optimal combination weighting |
| CN111931342A (en) * | 2020-07-08 | 2020-11-13 | 贵州电网有限责任公司 | Method for evaluating extra line loss caused by station area power quality |
| CN112465324A (en) * | 2020-11-19 | 2021-03-09 | 南京电力设计研究院有限公司 | Subway resource sharing-based electric energy quality evaluation system and method for subway power supply system |
| CN113065730A (en) * | 2020-09-17 | 2021-07-02 | 国网浙江省电力有限公司金华供电公司 | Power quality governance device based on distribution transformer area historical data |
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2016
- 2016-10-28 CN CN201610971965.4A patent/CN108009697A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898890A (en) * | 2018-08-29 | 2018-11-27 | 中国民用航空总局第二研究所 | Blank pipe operational efficiency grade appraisal procedure and its device |
| CN109284936A (en) * | 2018-10-11 | 2019-01-29 | 国网湖北省电力有限公司电力科学研究院 | A kind of electricity quality evaluation method based on the output of cloud graph visualization |
| CN109284936B (en) * | 2018-10-11 | 2022-02-08 | 国网湖北省电力有限公司电力科学研究院 | Power quality evaluation method based on cloud image visual output |
| CN109307854A (en) * | 2018-10-29 | 2019-02-05 | 中国电力科学研究院有限公司 | A kind of electric energy metering device comprehensive estimation method and system |
| CN110474342B (en) * | 2019-09-25 | 2021-11-05 | 国网青海省电力公司海西供电公司 | Method for constructing power distribution network voltage sag disturbance treatment effect evaluation model |
| CN110474342A (en) * | 2019-09-25 | 2019-11-19 | 国网青海省电力公司海西供电公司 | A kind of method that disturbance regulation effect assessment models building temporarily drops in distribution network voltage |
| CN111191907A (en) * | 2019-12-24 | 2020-05-22 | 嘉兴恒创电力设计研究院有限公司 | Comprehensive energy station energy efficiency evaluation method based on analytic hierarchy process |
| CN111241664A (en) * | 2020-01-03 | 2020-06-05 | 深圳供电局有限公司 | Distribution transformer area voltage problem treatment scheme evaluation method |
| CN111241664B (en) * | 2020-01-03 | 2023-09-05 | 深圳供电局有限公司 | Evaluation method for voltage problem management scheme of distribution transformer area |
| CN111489040A (en) * | 2020-04-22 | 2020-08-04 | 云南电网有限责任公司 | Voltage sequence comprehensive evaluation method based on optimal combination weighting |
| CN111489040B (en) * | 2020-04-22 | 2022-03-25 | 云南电网有限责任公司 | Voltage sequence comprehensive evaluation method based on optimal combination weighting |
| CN111931342A (en) * | 2020-07-08 | 2020-11-13 | 贵州电网有限责任公司 | Method for evaluating extra line loss caused by station area power quality |
| CN113065730A (en) * | 2020-09-17 | 2021-07-02 | 国网浙江省电力有限公司金华供电公司 | Power quality governance device based on distribution transformer area historical data |
| CN112465324A (en) * | 2020-11-19 | 2021-03-09 | 南京电力设计研究院有限公司 | Subway resource sharing-based electric energy quality evaluation system and method for subway power supply system |
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Effective date of registration: 20180823 Address after: No. 15, Qinghe Xiaoying East Road, Haidian District, Beijing Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Applicant after: North China Electric Power University Applicant after: BEIJING KELIYUAN ENERGY TECHNOLOGY CO., LTD. Applicant after: Electric Power Research Institute, State Grid Fujian Electric Power Co., Ltd. Address before: No. 15, Qinghe Xiaoying East Road, Haidian District, Beijing Applicant before: China Electric Power Research Institute Applicant before: State Grid Corporation of China Applicant before: North China Electric Power University Applicant before: BEIJING KELIYUAN ENERGY TECHNOLOGY CO., LTD. |
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Application publication date: 20180508 |