分布式电源接入配电网的选址与定容研究

发布时间：2018-01-11 10:27

本文关键词：分布式电源接入配电网的选址与定容研究　出处：《华北电力大学》2013年硕士论文　论文类型：学位论文

【摘要】：分布式电源(DG)具有间歇性和随机性特点,大量接入对电力系统存在一些影响,合理规划分布式电源接入配电网的容量和位置,对解决分布式电源接入电网的影响具有重要意义。本文分析了DG接入位置和容量对配电网规划、可靠性和电能质量等影响,考虑风速和光照强度随机性和DG出力的不确定性,建立了DG出力的随机性模型,以网络损耗降低和投资时间延迟产生的经济效益最大为多目标函数,计及电网安全运行约束,在分布式电源类型给定,个数和位置未知条件下,建立了选址定容优化模型,给出基于改进粒子群算法的选址定容算法,采用IEEE14节点配电系统算例对模型与算法进行检验。本文模型与算法考虑DG系统随机性,延缓电网建设投资效益等问题,与以往的选址与定容方法相比,本文提供了一种从扩容作用评价DG接入配电网经济效益以进行选址定容的新思路。
[Abstract]:Distributed power supply (DG) is intermittent and random, there are some influence of a large number of access to the power system, reasonable planning capacity and location of distributed generation access to distribution network, has an important significance to solve the grid connection of distributed power. This paper analyzes the DG access location and capacity of distribution network planning, reliability and quality. The electric energy, considering wind speed and light intensity of DG output randomness and uncertainty, a stochastic model of DG output, reducing investment and time delay to network loss of economic benefit as objective function, and the safe operation of the power grid in distributed power constraints, given the type, number and location of unknown conditions next, a location optimization model, this improved particle swarm optimization algorithm based on location, the IEEE14 node distribution system examples are seized on the model and algorithm The model and algorithm consider the randomness of DG system and delay the investment benefit of grid construction. Compared with the previous location selection and constant volume method, this paper provides a new idea to evaluate the economic benefits of DG access to distribution network from location expansion to capacity allocation.

【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TM715

【参考文献】