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Power transmission network expansion planning method and system considering uncertainty and active load

An uncertain, active load technology, applied in information technology support systems, data processing applications, instruments, etc., can solve problems such as taking up a lot of time and storage space, memory exhaustion, and inaccurate planning results, so as to improve the solution efficiency ability, comprehensive simulation operation, and the effect of improving engineering application value

Pending Publication Date: 2021-10-15
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of planning result is not accurate. At the same time, when the number of scenes is large, the direct solution may lead to memory exhaustion, taking up a lot of time and storage space

Method used

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  • Power transmission network expansion planning method and system considering uncertainty and active load
  • Power transmission network expansion planning method and system considering uncertainty and active load
  • Power transmission network expansion planning method and system considering uncertainty and active load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 As shown, this embodiment provides a transmission network expansion planning method considering uncertainty and active load, which specifically includes the following steps:

[0034] Step S101: Obtain the state variables and related constraints of equipment failure, load shedding penalty caused by wind power uncertainty, wind curtailment penalty and active load adjustment penalty, and form constraint conditions.

[0035] Step S102: Solve the transmission network expansion planning model under the constraints to obtain the transmission network expansion planning scheme;

[0036] Wherein, the transmission network expansion planning model considers wind power output and failure probability uncertainty and active load, and is optimized to minimize the annual comprehensive cost.

[0037] In this example,

[0038] The transmission network expansion planning model considers wind power output, failure probability uncertainty and active load, takes the minimum an...

Embodiment 2

[0189] Such as figure 2 As shown, this embodiment provides a transmission network expansion planning system considering uncertainty and active load, which specifically includes the following modules:

[0190] Constraint condition formation module, which is used to obtain state variables and related constraints of equipment failure, load shedding penalty caused by wind power uncertainty, wind curtailment penalty and active load adjustment penalty, and form constraint conditions;

[0191] A planning scheme solving module, which is used to solve the transmission network expansion planning model under constraint conditions, and obtain the transmission network expansion planning scheme;

[0192] Wherein, the transmission network expansion planning model considers wind power output and failure probability uncertainty and active load, and is optimized to minimize the annual comprehensive cost.

[0193] What needs to be explained here is that each module in the transmission network ...

Embodiment 3

[0195]This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps in the above-mentioned transmission network expansion planning method considering uncertainty and active load are implemented.

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Abstract

The invention belongs to the field of power system power transmission network planning, and provides a power transmission network extension planning method and system considering the uncertainty and an active load. The method comprises the steps of obtaining state variables of load shedding punishment, wind curtailment punishment and active load adjustment punishment generated by equipment faults and wind power uncertainty and related constraints thereof, and forming constraint conditions; solving the power transmission network extension planning model under constraint conditions to obtain an extension planning scheme of the power transmission network; wherein the power transmission network extension planning model considers wind power output, fault probability uncertainty and active load and takes the minimum annual comprehensive cost as optimization. According to the method, the planning scheme of the power transmission line can be optimized under the condition that wind power output and fault scene uncertainty are considered at the same time.

Description

technical field [0001] The invention belongs to the field of power system transmission network planning, and in particular relates to a transmission network expansion planning method and system considering uncertainties and active loads. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Transmission network expansion planning is one of the basic contents of power system planning. Power network planning that takes into account both effectiveness and economy can not only ensure the balance of power supply and demand and the safe operation of the system, but also save certain construction costs for power companies. It is in line with the requirements of the power market. development needs. The main goal of transmission network expansion planning is to determine when and where to expand new transmission lines according to the forecast of load g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06Q10/04
CPCG06Q50/06G06Q10/04Y04S10/50
Inventor 鉴庆之郑志杰王纬纶王明强刘帅冯亮孙东磊杨思王宪刘蕊孙毅刘冬魏佳
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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