Multi-target synergic planning method considering charging station and distributed power supply for power distribution network

Abstract

The invention relates to a multi-target synergic planning method considering a charging station and a distributed power supply for a power distribution network. The method comprises the steps of considering uncertainty of the distributed power supply, analyzing a wind light power generation output rule, and building a multi-scene distributed power supply and load model according to season and timesequence characteristic; building an electric vehicle road traffic network model, considering traffic flow distribution and traffic network layout, calculating traffic economic benefit according to traffic flow captured by an electric vehicle charging station and average waiting time of a user, and allowing the power distribution network to be coupled to the traffic network; and comprehensively considering the distributed power supply and electric vehicle charging site selection and sizing, and building a multi-target synergic planning model by planning lowest total cost and optimal network node voltage mass as an upper-layer target and minimum distributed power supply removal quantity expected value as a lower-layer target. By the method, the running economy and the electric energy quality of a power grid are improved, moreover, the traffic congestion caused by construction of the charging station is prevented, and the stability of the power system is improved.

Description

technical field [0001] The invention relates to the technical field of distribution network planning, in particular to a multi-objective coordinated planning method for a distribution network that takes into account charging stations and distributed power sources. Background technique [0002] Changes in the economic and commercial environment of power system design and operation make distribution networks must consider coordination with distributed power sources. When a large number of distributed power sources appear in the planning scheme, a large number of random changes cause the complexity of the system to increase terribly. . The traditional planning methods do not have sufficient ability to solve the planning problems involving distributed power generation, mainly because the traditional planning methods simplify the planning problems to varying degrees. There is no better way to deal with it. [0003] As a brand-new means of transportation, electric vehicles can n...

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Problems solved by technology

[0002] Changes in the economic and business environment of power system design and operation make the power distribution network must consider the cooperation with distributed power sources. When a large number of distributed power sources appear in the planning scheme, a large number of random changes will increase the complexity of the system terribly

The traditional planning methods do not have sufficient ability to solve the planning problems involving distributed power, mainly because the traditional planning methods simplify the planning problems to varying degrees. Lack of a better way to deal with

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