Clean energy power planning method based on Wasserstein distance and distribution robust optimization

A technology of power planning and robust optimization, which is applied in the direction of single-network parallel feed arrangement, etc., can solve the problems of thermal power with poor robustness, and does not consider the large-scale withdrawal of thermal power, so as to achieve low conservatism, reduce conservatism, and ensure robustness sexual effect

Active Publication Date: 2020-02-14
STATE GRID SICHUAN ECONOMIC RES INST
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Problems solved by technology

The above-mentioned power supply planning has the problem of insufficient handling of uncertainties and does not consider the large-scale withdrawal of thermal power, and the resulting planning has poor robustness and thermal power is still in operation

Method used

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  • Clean energy power planning method based on Wasserstein distance and distribution robust optimization
  • Clean energy power planning method based on Wasserstein distance and distribution robust optimization
  • Clean energy power planning method based on Wasserstein distance and distribution robust optimization

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Embodiment

[0137] In this example, the clean energy power supply planning in the stages considering the uncertainty of wind and solar power and the retirement of thermal power units will be applied to the IEEE RTS79 system to achieve clean energy power planning in four stages, focusing on the uncertainty of wind and solar power and the retirement of thermal power units. , while considering factors such as hydropower participation in mediation constraints, water abandonment costs, and power balance. The data on the RTS79 system are as follows: the number of thermal power plants is 6, the total number is 24, and the total capacity: 2500MW. The total hydropower capacity of the first stage is: 3540MW; the total hydropower capacity of the second stage is: 4980MW; the total hydropower capacity of the second stage is: 5880MW; the total hydropower capacity of the second stage is: 7740MW; the total hydropower capacity of the second stage: 9600MW . The load of each stage is increased by 20%.

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Abstract

The invention discloses a clean energy power planning method based on Wasserstein distance and distribution robust optimization, and relates to the technical field of power system planning. The methodcomprises the following steps: S1, constructing a wind-photovoltaic power output uncertainty set based on Wasserstein distance; S2: establishing a power planning model under distributed robust optimization; S3, solving by bringing the wind-photovoltaic power output uncertainty set into the power planning model under distributed robust optimization to obtain a clean energy power planning scheme. Compared with a traditional method, the method of the invention has lower conservatism of the uncertainty set, has strong ability to adapt to complex and changeable operating environments, and can be adopted for effective solution.

Description

technical field [0001] The invention relates to the technical field of power system planning, in particular, to a clean energy power supply planning method based on Wasserstein distance and distribution robust optimization. Background technique [0002] On the basis of traditional power grid planning, existing research has established a variety of power grid planning models for different planning needs. In addition, the large-scale connection of renewable energy to the power grid brings increasing uncertainty to the power grid planning. Only relying on the power balance constraints under a given reserve rate to obtain a planning scheme cannot meet the requirements of stable operation of the power grid. [0003] At present, many studies have considered the power grid operation problem in the power grid planning, the literature "Fan Zhicheng, Zhu Junpeng, Yuan Yue, et al. Active distribution network distributed power planning model and linearization method based on improved DC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46H02J3/38
CPCH02J3/46
Inventor 汪荣华刘洋朱觅刘莹李奥苟竞唐权胥威汀李婷王云玲
Owner STATE GRID SICHUAN ECONOMIC RES INST
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