青海海西州供电区域配电网络规划研究

发布时间：2018-04-29 07:07

本文选题：配电网规划 + 电力需求预测　；参考：《华北电力大学》2017年硕士论文

【摘要】：合理的配电网规划是提高运行灵活性及供电可靠性、降低电能损耗的基础。本论文从作者参与的实际工作出发,对海西州配电网络现状及配电网络规划进行了深入研究。本文针对海西州电源点布局情况、110kV/35kV/10kV变电站及线路情况、电网设备及运行年限等方面做了较为详细的阐述。同时根据海西州配电网主要运行指标对电网现状分析诊断。通过对青海省海西州区域经济情况调查,结合该地区区域配电网络现状,并根据2005年-2016年海西州历史负荷增长趋势及负荷特性规律,利用年均增长率法、产值单耗法、回归分析法等3种方法综合分析出海西州2017-2020年全社会用电量预测结果;利用最大负荷利用小时数法、大用户+自然负荷法等方法得出海西州2017-2020年最大负荷预测结果,根据预测结果制订了电源点规划方案。结合海西州电网实际情况,依据国家电网公司对配电网的规划目标及技术原则的相关导则,按照为用户提供充足、可靠、优质、经济的电力供应的总体目标,规划具有结构完善、技术领先、高效互动、灵活可靠等特征的配电网。基于海西州新能源及分布式电源发展现状,结合新能源及分布式电源规划目标,对新能源接入配电网适应性进行分析。基于配电网自动化建设目标和主要原则,预测“十三五”期间配电自动化建设规模及投资,预估建成后配电自动化成效。该工作旨在对未来几年海西州配电网规划建设提供技术支撑和参考,以更好的满足区域经济发展对电网建设的要求。
[Abstract]:Reasonable distribution network planning is the basis to improve the operation flexibility, power supply reliability and reduce power loss. Based on the practical work of the author, this paper makes a deep study on the distribution network status and distribution network planning in Haixi Prefecture. In this paper, the distribution of power supply points in Haixi is described in detail in terms of 110 kV / 35 kV / 10 kV substations and lines, power network equipment and operation life. At the same time, according to the main operating indicators of Haixi distribution network, the current situation of the network is analyzed and diagnosed. Through the investigation of the regional economic situation in Haixi Prefecture, Qinghai Province, combined with the present situation of the regional distribution network in the region, and according to the trend of historical load growth and the characteristics of the load in Haixi from 2005 to 2016, the method of average annual growth rate and the method of unit consumption of output value are used. Three methods, such as regression analysis, are used to analyze the forecast results of the total social electricity consumption in Haixi during 2017-2020, and the maximum load forecasting results for 2017-2020 in Haixi are obtained by using the maximum load hours method and the natural load method of large users. According to the forecast result, the power point planning scheme is established. According to the actual situation of Haixi electric network, according to the relevant guidelines of the State Grid Company's planning objectives and technical principles of distribution network, according to the overall goal of providing sufficient, reliable, high-quality and economical power supply to customers, Planning has the characteristics of perfect structure, leading technology, high-efficiency interaction, flexible and reliable distribution network. Based on the present situation of new energy and distributed power generation in Haixi, the adaptability of new energy to distribution network is analyzed. Based on the objectives and main principles of distribution network automation construction, the scale and investment of distribution automation construction during the 13th Five-Year Plan period are predicted, and the effect of distribution automation after completion is estimated. The purpose of this work is to provide technical support and reference for the planning and construction of distribution network in Haixi Prefecture in the next few years so as to better meet the requirements of regional economic development for grid construction.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM715

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