Study On Multi-type Distributed Generation Planning Of Dandong Distribution Network

With the shortage of energy and environmental pollution becoming more and more serious,the available land area is getting more and more strained,and the future development of the power grid is facing a more severe test.At present,the development trend of the power grid has turned to a new clean power source that is environment-friendly and has a small footprint.Among them,distributed power sources have developed rapidly in the field of distribution networks.With the development and application of distributed power in the actual distribution network,distributed power supplies also put forward new requirements for the planning and operation of traditional distribution networks.This paper focuses on the characteristics of distributed power supply and studies the distribution network planning method with multi-type distributed power supply.First,it mainly introduces the research background and significance.The survey focused on the development of distributed power supply and the research progress of its domestic and international planning technologies.Second,combined with the actual situation in Dandong,the characteristics of various distributed renewable energy sources were analyzed.This includes the power characteristics of wind resources and wind farms,the output characteristics of solar and photovoltaic power plants,and the distribution characteristics of water resources.Through analysis,it is believed that the Dandong region has good energy complementarities.Then,a planning model for a distributed power distribution network was established.The planning objectives include investment costs,equipment operating costs and environmental costs.The objective functions are integrated to form a comprehensive optimization planning model and solved based on the particle swarm algorithm.Finally,based on the example of distribution network in Dandong area,a planning study of distribution network was conducted based on the distribution network of a certain area.The results show that compared with the traditional economic planning,the planning method of this paper is more scientific and effective.