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Distributed optimal scheduling method and system for active distribution network

A technology of active distribution network and optimized scheduling, applied in circuit devices, AC network circuits, single-network parallel feeding arrangements, etc., can solve problems such as inability to adapt to topology changes, large computing and communication

Pending Publication Date: 2018-06-29
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology

[0004] In order to overcome the disadvantages of the above-mentioned prior art, such as the large amount of calculation and communication and the inability to adapt to topology changes, the present invention proposes a distributed optimal scheduling method and system for active distribution networks

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  • Distributed optimal scheduling method and system for active distribution network
  • Distributed optimal scheduling method and system for active distribution network
  • Distributed optimal scheduling method and system for active distribution network

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Embodiment Construction

[0090] At present, the main control structure adopted in the active distribution network is the hierarchical distributed control method, which divides it into multiple optimized management levels and autonomous regions according to the physical structure and voltage level of the active distribution network to realize Hierarchical and partitioned regulation and management of active distribution network. The coordination control layer updates the exchange power command between the active distribution network and each autonomous region with reference to different optimization objectives, and the regional autonomy layer performs optimal scheduling in the autonomous region according to the active power command of the coordination control layer. In the active distribution network, the overall efficiency of the distribution system can be improved through the mutual complementarity between different forms of electric energy, which is also the development trend of the future distributio...

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Abstract

The invention provides a distributed optimal scheduling method and system for an active distribution network. The method comprises the following steps: acquiring power disturbance; solving a pre-established power-cost model in an autonomous region of the distribution network based on the acquired power disturbance; distributing power of each autonomous node in the autonomous region of the distribution network according to calculation results, wherein the pre-established power-cost model in the autonomous region of the distribution network comprises that the generating incremental cost of eachdistributed power supply serves as a consistency variable, so that an equal consumed energy ratio of each distributed power supply keeps consistent. According to the method and the system, defects oflarge communication and computation amount during optimal scheduling of the active distribution network can be overcome, and optimization of an active distribution network scheduling algorithm is realized.

Description

technical field [0001] The invention belongs to the field of power grid dispatching, and in particular relates to a distributed optimal dispatching method and system for an active power distribution network. Background technique [0002] As large-scale distributed power sources, energy storage devices, electric vehicles and flexible loads are connected to the distribution network, the traditional distribution network is gradually becoming an active distribution network, and the controllable equipment is gradually increasing, and the concept of the active distribution network is gradually expanding. , how to optimize the dispatching of the active distribution network has become the key to the safe, stable, economical and efficient operation of the distribution network. [0003] A large number of distributed power sources are connected to the active distribution network. Distributed power sources are affected by factors such as the natural environment and have greater volatili...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/24
CPCH02J3/24H02J3/48H02J2203/20
Inventor 蒲天骄董雷陈乃仕刘威李烨王晓辉范士雄杨占勇杨洋卫泽晨李蕴黄仁乐贾东强汪伟王存平孙健王海云
Owner CHINA ELECTRIC POWER RES INST
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