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Power distribution network energy dispersion coordination and optimization method based on reweighted acceleration Lagrangian

An optimization method and decentralized coordination technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as high network communication pressure, complex solution process, and inability to respond in real time

Active Publication Date: 2015-12-23
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology

[0003] Too many nodes in the distribution network are connected to distributed energy, which will cause excessive pressure on network communication, complex solution process, and inability to respond in real time

Method used

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  • Power distribution network energy dispersion coordination and optimization method based on reweighted acceleration Lagrangian
  • Power distribution network energy dispersion coordination and optimization method based on reweighted acceleration Lagrangian
  • Power distribution network energy dispersion coordination and optimization method based on reweighted acceleration Lagrangian

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Embodiment Construction

[0076] In order to express the idea of ​​the present invention more clearly and intuitively, the distributed optimization process of energy dispatching in distribution network with high-density distributed power supply is described in detail, taking IEEE-69 power distribution system as an example, as follows image 3 shown. Installed 200kW photovoltaic distributed power at nodes 10, 16 and 26, installed 500kW distributed power at nodes 48, 58, 60, 63 and 64, and installed at nodes 7, 11, 20, 47, 63 and 64 100kWh distributed energy storage. The implementation of active and reactive energy dispersion optimization of IEEE-69 power distribution system includes the following steps:

[0077] 1) Establish a linear multi-time-scale linear cone optimal power flow model for a distribution system with high-density distributed power generation: the system active network loss is used as the objective function, and the constraints include: branch power flow linear equation constraints, bra...

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Abstract

The invention discloses a power distribution network energy dispersion coordination and optimization method based on reweighted acceleration Lagrangian. The method establishes a multi-time scale linear cone optimal power flow module and utilizes a virtual auxiliary variable split node to decompose the power distribution network into a plurality of area sub systems, and puts forward a dispersion coordination and optimization method based on local area reweighted acceleration Lagrangian to implement dispersion coordination and optimization of active and reactive resource of the whole network. The power distribution network energy dispersion coordination and optimization method enables each sub system to realize parallel synchronization iterative solution, and has no requirement for overall coordination, and only a small quantity of information interaction is required between adjacent sub systems. The power distribution network energy dispersion coordination and optimization method is high in calculating efficiency and is high in convergence characteristic.

Description

technical field [0001] The invention belongs to the technical field of intelligent distribution network energy optimization dispatching, and in particular relates to a distribution network energy distributed optimal dispatching method including large-scale distributed power sources and controllable loads. Background technique [0002] With the development of new energy distributed power generation technology, the further opening of energy policy and power market, the future smart distribution network will accept a large number of distributed energy, and the intermittent nature of distributed energy will bring it to the distribution network Coordinated control of the system poses a great challenge. Research on distributed power supply, distributed energy storage, flexible load and other participating grid energy optimization management technologies can adapt to the active management optimization technology of modern intelligent distribution network, and achieve the goals of r...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06Q10/04G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 李静戴文战赵忠伟沈忱
Owner ZHEJIANG GONGSHANG UNIVERSITY
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