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

A distributed power supply and charging station technology, applied in charging stations, electric vehicle charging technology, resources, etc., can solve problems such as lack of uncertain factors and increased system complexity

Inactive Publication Date: 2019-11-26
STATE GRID CORP OF CHINA +3
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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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  • Multi-target synergic planning method considering charging station and distributed power supply for power distribution network
  • Multi-target synergic planning method considering charging station and distributed power supply for power distribution network
  • Multi-target synergic planning method considering charging station and distributed power supply for power distribution network

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Embodiment Construction

[0103] The present invention will be described in further detail below in conjunction with the description of the drawings and specific embodiments.

[0104] see figure 1 , figure 2 , a multi-objective collaborative planning method for a distribution network considering charging stations and distributed power sources, the method comprising the following steps:

[0105] a. Considering the uncertainty of distributed power, analyze the output law of wind and solar power generation, and establish a multi-scenario distributed power and load model based on its seasonal and time sequence characteristics;

[0106] a1. It is assumed that the output of distributed power generation obeys a certain probability distribution model, and its uncertainty is expressed by sampling methods; the output of wind turbines varies with the wind speed, and the output of photovoltaic generators mainly depends on the light intensity, although the wind speed and The light intensity has randomness and vo...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38B60L53/64G06Q10/06G06Q50/06
CPCB60L53/64G06Q10/06313G06Q50/06Y02T10/70Y02T10/7072Y02T90/12
Inventor 郑云飞颜炯汪颖翔桑子夏王思聪黄家祺方仍存杨明胡婷雷何张籍胡志坚李想郑茂松陈政
Owner STATE GRID CORP OF CHINA
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