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Distribution network expansion planning method considering the optimal operation of regional integrated energy system

An integrated energy system, optimized operation technology, applied in the field of electrical information

Active Publication Date: 2018-12-21
CONSTR BRANCH CHONGQING ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For the defects or improvement needed in the existing method, the present invention aims to use the distribution network expansion planning method considering the optimal operation of the regional comprehensive energy system to solve the complex multi-stage planning problem of the distribution network frame, which is used to meet the load growth and Promote optimal use of resources

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  • Distribution network expansion planning method considering the optimal operation of regional integrated energy system
  • Distribution network expansion planning method considering the optimal operation of regional integrated energy system
  • Distribution network expansion planning method considering the optimal operation of regional integrated energy system

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Embodiment 1

[0094] The main idea of ​​the distribution network expansion planning method in this embodiment is as follows: firstly, a regional comprehensive energy system model is established and its internal energy flow relationship is analyzed. Secondly, based on the multi-agent system, a three-layer interactive structure including supervisory layer, regional layer, and equipment layer is built to realize the interaction of different entities on a spatial scale. Then, for the distribution network including residential, commercial and industrial regional integrated energy systems, a two-layer optimization model is established. The upper layer performs the expansion planning of the distribution network, and the lower layer realizes the optimal operation of the regional integrated energy system, and uses the genetic membrane algorithm And sequential quadratic programming method nested to solve the upper and lower model. Finally, the simulation example shows that the distribution network pl...

Embodiment 2

[0178] In this embodiment, the distribution network planning method of the above-mentioned embodiment 1 is applied to the actual distribution network for simulation testing, and the specific process is as follows:

[0179] Such as figure 1 As shown, after analyzing the characteristics of the planning problem, it is determined that the RIES energy flow is the output of PV and WT, and the electric energy discharged by EV and purchased from the distribution network is transmitted to the electric load, P2G and ER according to the electric energy distribution coefficient, and the cooling supply part of ER cooling load. Powered by P2G, GS releases gas and purchases natural gas from the natural gas pipeline network to be sent to CHP and GB according to the distribution coefficient of natural gas. The electricity generated by CHP is sent to the electric load and ER, and the heat generated by GB is sent to the heat load and the ER together. AR, AR and ER produce cooling together to su...

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Abstract

The invention discloses a distribution network expansion planning method considering the optimized operation of a regional integrated energy system. Firstly, a regional integrated energy system modelis established and the internal energy flow relationship is analyzed. Secondly, based on the multi-agent system, a three-layer interactive structure including the main layer, the regional layer and the device layer is built to realize the interaction of different entities on the spatial scale. Then, a bi-level optimization model is established for the distribution network with residential, commercial and industrial regional integrated energy systems. The upper level is used for the expansion planning of distribution network, and the lower level is used for the optimization operation of regional integrated energy systems. Genetic membrane algorithm and sequential quadratic programming are used to solve the upper and lower level models nested nested. Finally, the simulation example shows that the distribution network planning considering the optimal operation of regional integrated energy system can reduce the total cost of planning, improve energy efficiency and new energy consumption rate.

Description

technical field [0001] The invention relates to the field of electrical information, in particular to a distribution network expansion planning method that considers the optimal operation of a regional comprehensive energy system, realizes reducing the investment in power grid construction under the premise of meeting load growth, and increasing the economy, reliability and reliability of future power grid operation Environmental protection, promoting the optimal utilization of resources in the system. Background technique [0002] With the gradual reduction of fossil energy and the worsening of environmental pollution, new energy power generation technology has been highly valued by countries all over the world, and more and more wind power and photovoltaic power generation have been put into use. The existing energy supply network has brought certain adverse effects, and its own large consumption is also difficult. Therefore, an integrated energy system that can achieve e...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0637G06Q50/06
Inventor 唐文左蒋闻张程柯雷霞李逐云
Owner CONSTR BRANCH CHONGQING ELECTRIC POWER
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