Active distribution network energy-storage system dynamic planning method

A technology of active distribution network and energy storage system, applied in the direction of system integration technology, information technology support system, instruments, etc., can solve the problem of intermittent and random distributed power, increase grid uncertainty, affect network loss and voltage distribution and other problems, to achieve the effect of improving load peak-valley difference, fast solution speed and strong scalability

Inactive Publication Date: 2017-10-10
GUANGZHOU POWER SUPPLY CO LTD +1
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Problems solved by technology

[0002] As the whole society pays attention to energy shortage and environmental problems, a large number of distributed new energy generation is connected to the distribution network. However, the intermittent and random nature of distributed power generation increases the uncertainty of power grid operation, thus affecting network loss and voltage distribution

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  • Active distribution network energy-storage system dynamic planning method
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  • Active distribution network energy-storage system dynamic planning method

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Embodiment Construction

[0055] The present embodiment will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of this embodiment, and a detailed implementation manner and specific operation process are given, but the protection scope of this embodiment is not limited to the following embodiments.

[0056] The invention provides a dynamic planning method for an active distribution network energy storage system. This patented technology can realize reliable and reasonable distribution network planning, and has obtained the support of the national key research and development plan "Smart Grid Technology and Equipment" key special funding project (2016YFB0901301) .

[0057] This method takes the active distribution network containing distributed photovoltaic and energy storage systems as the research object, and the dynamic programming method is based on a two-level programming model ...

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Abstract

The invention relates to an active distribution network energy-storage system dynamic planning method which studies active distribution networks which contain distributive photovoltaic and energy-storage systems. The method herein optimizes an output strategy of the energy-storage system on the basis of a bilevel programming model in combination with the shortest path theory so as to determine the installed capacity of the distributive photovoltaic and energy-storage system under the optimal output strategy of the energy-storage system. For the bilevel programming model, upper level programming determines the installed capacity of the distributive photovoltaic and energy-storage system with the minimum annual general fee of a power distribution network as the goal and generates a planning scheme, and the lower level planning optimizes the output strategy of the energy-storage system in one operation cycle and in one day with the minimum typical daily operation fee and load peak-valley difference of the power distribution network as the goal. Compared with prior art, according to the invention, the method herein can effectively improve operation characteristic of the active distribution network and optimization configuration of the distributive power supply and energy-storage system.

Description

technical field [0001] The invention relates to the technical field of active distribution network planning, in particular to a dynamic planning method for an active distribution network energy storage system. Background technique [0002] As the whole society pays attention to energy shortage and environmental problems, a large number of distributed new energy generation is connected to the distribution network. However, the intermittent and random nature of distributed power generation increases the uncertainty of power grid operation, thus affecting network loss and voltage distribution. [0003] The energy storage system has both supply and storage capabilities, can quickly adjust power, and plays a role in peak shaving and valley filling in the distribution network. In order to reasonably plan the distributed generator (Distributed Generator, DG) and energy storage system (Energy Storage System, ESS), the technology of active distribution network came into being. [0...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y02E40/70Y04S10/50
Inventor 刘育权
Owner GUANGZHOU POWER SUPPLY CO LTD
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