CN109086937A - A kind of substation's load distribution algorithm - Google Patents

A kind of substation's load distribution algorithm Download PDF

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Publication number
CN109086937A
CN109086937A CN201810903068.9A CN201810903068A CN109086937A CN 109086937 A CN109086937 A CN 109086937A CN 201810903068 A CN201810903068 A CN 201810903068A CN 109086937 A CN109086937 A CN 109086937A
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power supply
load
substation
supply area
accounting
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CN201810903068.9A
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Inventor
赵龙
田鑫
李雪亮
吴健
牟宏
高效海
孙东磊
程剑
高晓楠
汪湲
刘晓明
魏佳
张佳宁
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Shandong Zhiyuan Electric Power Design And Consulting Co Ltd
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Shandong Electric Power Co Ltd
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Shandong Zhiyuan Electric Power Design And Consulting Co Ltd
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Shandong Electric Power Co Ltd
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Priority to CN201810903068.9A priority Critical patent/CN109086937A/en
Publication of CN109086937A publication Critical patent/CN109086937A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION 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
    • G06Q10/00Administration; Management
    • G06Q10/04Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION 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
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0631Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION 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
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06Energy or water supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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Abstract

A kind of substation's load distribution algorithm, belongs to electric power distribution technical field.Including division of the power supply area unit, division of the power supply area cell data is connected with load estimation unit, load estimation unit data connection has power supply accounting evaluation unit, the relevant matrix unit of accounting evaluation unit data connection of powering, incidence matrix cell data is connected with distribution load computing unit, specifically includes the following steps: 1) counting each affiliated power supply area of substation;2) load of each power supply area of prediction to planning level year;3) the power supply accounting in planning level year is estimated;4) incidence matrix is formed according to power supply accounting;5) distribution load is calculated.Solve the problems, such as that existing substation's sharing of load blindness, adaptability is poor and low efficiency, substation is directly formed by grid equation to burden apportionment coefficient matrix, to effectively establish analytic modell analytical model, accuracy, adaptability and high efficiency during sharing of load are substantially increased.

Description

A kind of substation's load distribution algorithm
Technical field
The present invention relates to a kind of substation's load distribution algorithms, belong to electric power distribution technical field.
Background technique
In recent years, it is guarantee power industry in the reasonability and fairness of Market Operation mechanism, clear power grid is needed to advise Draw the sharing of load work in realistically displayed.In the prior art, it is mainly then pressed by determining total load according to load prediction According to principles such as capacity-load ratios, by sharing of load into each substation, and specifically how to distribute, ununified principle and thinking, Mostly be it is artificial be allocated adjustment according to load prediction, there is biggish blindness, while it is inefficient, can not be by calculating Machine realizes and quickly calculates that adaptability is poor.
For above-mentioned prior art situation, present invention applicant has done a large amount of beneficial explorations repeatedly, and final products take Effective achievement was obtained, and forms technical solution described below.
Summary of the invention
In view of the above-mentioned deficiencies, straight by grid equation the present invention provides a kind of substation's load distribution algorithm It connects to form substation to burden apportionment coefficient matrix, to effectively establish analytic modell analytical model, substantially increases sharing of load process In accuracy, adaptability and high efficiency.
The present invention is achieved by the following technical solutions: a kind of substation's load distribution algorithm, comprising the following steps:
1) power supply area is divided, the affiliated power supply area of each substation is counted;
2) load of each power supply area of prediction to planning level year;
3) the power supply accounting in planning level year is estimated;
4) according to the power supply accounting of estimation, incidence matrix is formed;
5) distribution load is calculated.
Further, the detailed process of the step 1) are as follows: drawn power supply area using division of the power supply area unit Point, and power supply area j belonging to each substation is counted, form associated diagram.
Further, the detailed process of the step 2) are as follows: using load estimation unit according to existing load prediction side Method, prediction steps 1) described in power supply area j to planning level year total load Pj.
Further, the detailed process of the step 3) are as follows: using power supply accounting evaluation unit according to existing operation data Estimate the power supply accounting in planning level year, the concept for accounting of powering are as follows:
Wherein, Pij is supply load of the substation i in power supply area j, and Pj is power supply area j to planning level year Total load.
Further, the detailed process of the step 4) are as follows: formed using incidence matrix unit using accounting of powering as element Incidence matrix.
Further, the detailed process of the step 5) are as follows: utilize distribution load computing unit, and born in step (2) The incidence matrix calculating distribution load that rectangular element is formed is associated in the prediction data Pj of lotus predicting unit and step (4):
Wherein, n is the number of total power supply area, and i is i-th of substation.
Beneficial effects of the present invention:
1. substation is directly formed to burden apportionment coefficient matrix by grid equation, to effectively establish parsing Model substantially increases accuracy, adaptability and high efficiency during sharing of load;
2. solving in existing sharing of load, adaptability is poor, and difference planning year sharing of load is associated with smaller, annual load The problem of causing workload to increase almost is redistributed, has the characteristics that high-efficient, adaptable, sharing of load is reasonable;
3. the algorithm directly obtains distribution of the power supply to load and load to power supply by distribution coefficient matrix solution, have There is engineering significance, and further to study and solving the problems, such as that power flow tracing provides new approaches.
Detailed description of the invention
Fig. 1 is overall architecture schematic diagram of the invention;
Fig. 2 is algorithm flow schematic diagram of the invention.
Specific embodiment
As shown in Fig. 1 to 2, a kind of substation's load distribution algorithm, including division of the power supply area unit, load prediction list Member, power supply accounting evaluation unit, incidence matrix unit and distribution load computing unit, the division of the power supply area unit with Load estimation unit establishes data connection, and the load estimation unit and power supply accounting evaluation unit establish data connection, institute The power supply accounting evaluation unit and incidence matrix unit stated establish data connection, the incidence matrix unit and distribution load meter It calculates unit and establishes data connection, specifically includes the following steps:
1) power supply area is divided, the affiliated power supply area j of each substation is counted;
Power supply area is divided using division of the power supply area unit, and counts power supply area j belonging to each substation, Form associated diagram.
2) load Pj of each power supply area of prediction to planning level year;
Using load estimation unit according to existing load forecasting method, prediction steps 1) described in power supply area j arrive The total load Pj in planning level year.
3) the power supply accounting in planning level year is estimated;
The power supply accounting for estimating planning level year according to existing operation data using power supply accounting evaluation unit, accounting of powering Concept are as follows:
Wherein, Pij is supply load of the substation i in power supply area j, and Pj is power supply area j to planning level year Total load.
4) according to the power supply accounting Aij of estimation, incidence matrix is formed;
It is formed using incidence matrix unit using accounting of powering as the incidence matrix of element.
5) distribution load is calculated.
Using distribution load computing unit, and in the prediction data Pj and step (4) of load estimation unit in step (2) It is associated with the incidence matrix that rectangular element is formed and calculates distribution load:
Wherein, n is the number of total power supply area, and i is i-th of substation.
Therefore, substation is directly formed by grid equation to burden apportionment coefficient matrix, to effectively establish Analytic modell analytical model substantially increases accuracy, adaptability and high efficiency during sharing of load.
For the ordinary skill in the art, introduction according to the present invention, do not depart from the principle of the present invention with In the case where spirit, changes, modifications that embodiment is carried out, replacement and variant still fall within protection scope of the present invention it It is interior.

Claims (6)

1. a kind of substation's load distribution algorithm, which comprises the following steps:
1) power supply area is divided, the affiliated power supply area of each substation is counted;
2) load of each power supply area of prediction to planning level year;
3) the power supply accounting in planning level year is estimated;
4) according to the power supply accounting of estimation, incidence matrix is formed;
5) distribution load is calculated.
2. a kind of substation's load distribution algorithm as described in claim 1, characterized in that the detailed process of the step 1) Are as follows: power supply area is divided using division of the power supply area unit, and counts power supply area j belonging to each substation, is formed Associated diagram.
3. a kind of substation's load distribution algorithm as described in claim 1, characterized in that the detailed process of the step 2) Are as follows: using load estimation unit according to existing load forecasting method, prediction steps 1) described in power supply area j to plan water The total load Pj in non-leap year.
4. a kind of substation's load distribution algorithm as described in claim 1, characterized in that the detailed process of the step 3) Are as follows: using power supply accounting evaluation unit according to existing operation data estimate planning level year power supply accounting, accounting of powering it is general It reads are as follows:
Wherein, Pij is supply load of the substation i in power supply area j, and Pj is that power supply area j is born to the total of planning level year Lotus.
5. a kind of substation's load distribution algorithm as described in claim 1, characterized in that the detailed process of the step 4) Are as follows: it is formed using incidence matrix unit using accounting of powering as the incidence matrix of element.
6. a kind of substation's load distribution algorithm as described in claim 3 and 5, characterized in that the specific mistake of the step 5) Journey are as follows: utilize distribution load computing unit, and prediction data Pj and the middle pass of step (4) to load estimation unit in step (2) Join the incidence matrix that rectangular element is formed and calculate distribution load:
Wherein, n is the number of total power supply area, and i is i-th of substation.
CN201810903068.9A 2018-08-09 2018-08-09 A kind of substation's load distribution algorithm Pending CN109086937A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109754129A (en) * 2019-02-21 2019-05-14 清华大学 Electric load form a team power supply plan optimization method and optimization device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105207200A (en) * 2015-09-10 2015-12-30 国家电网公司 Development coordination analyzing method for power grid with load distribution unbalance
CN105322543A (en) * 2015-11-30 2016-02-10 国网山东省电力公司经济技术研究院 Incidence matrix based load distribution system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105207200A (en) * 2015-09-10 2015-12-30 国家电网公司 Development coordination analyzing method for power grid with load distribution unbalance
CN105322543A (en) * 2015-11-30 2016-02-10 国网山东省电力公司经济技术研究院 Incidence matrix based load distribution system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109754129A (en) * 2019-02-21 2019-05-14 清华大学 Electric load form a team power supply plan optimization method and optimization device

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