燃气分布式能源发电对电网企业的影响分析模型研究

发布时间：2018-09-08 12:08

【摘要】：近年来我国电力需求持续增长,电力行业排污量控制任务艰巨,燃气分布式能源系统作为高效、节能、环保的综合用能方式在我国越来越受到重视。合理规划燃气分布式能源容量及位置能够形成对传统集中供电网络的良好补充,能够实现对电网的削峰填谷,缓和电力供应紧张。并且,我国天然气资源丰富,近期勘探成果显著,天然气储量呈现快速增长,也为大力发展燃气分布式能源系统提供了重要保证。合理的交易机制和鼓励政策是推动燃气分布式能源系统建设的巨大动力,而目前我国尚未出台关于燃气分布式能源系统的财税法规。已有的燃气分布式能源系统发电并网交易价格制定比较简单,缺乏对电网企业利益的平衡。本文针对燃气分布式能源系统交易机制不够完整的现状,首先对国内外前沿技术和管理状况进行总结,其次,立足于我国现有电力体制,抓住技术与经济两条主线,分别对燃气分布式能源系统给电网企业带来的影响进行识别和度量。基于算例仿真定量分析燃气分布式能源系统对配电网短路电流、继电保护、网损、电压的影响,定性分析对配电网电能质量、电网规划等方面的影响并提出了自适应粒子群算法应用于燃气分布式电源的选址定容问题。基于对燃气分布式能源系统上网价格、输配电价格、备用费用模型制定和社会价值分析,定量计算燃气分布式能源系统并网对电网企业的收益影响。最后,基于前文分析提出燃气分布式能源发展的政策建议,为电网企业与燃气分布式能源的协调发展保驾护航。
[Abstract]:In recent years, the power demand of our country continues to grow, the power industry discharge quantity control task is arduous, the gas distributed energy system as the high efficiency, the energy saving, the environmental protection comprehensive energy use way receives the more and more attention in our country. Reasonable planning of gas distributed energy capacity and location can form a good supplement to the traditional centralized power supply network, can realize the peak cutting and filling valley of the power network, and ease the shortage of power supply. In addition, China is rich in natural gas resources, with remarkable recent exploration results and rapid increase of natural gas reserves, which also provides an important guarantee for the development of gas distributed energy system. Reasonable trading mechanism and encouraging policy are the great power to promote the construction of gas distributed energy system, but at present, there is no financial and tax regulation on gas distributed energy system in our country. The existing gas distributed energy system is relatively simple to establish the transaction price of power generation grid, and lacks the balance of the power grid enterprises' interests. In view of the incomplete trading mechanism of the gas distributed energy system, this paper firstly summarizes the advanced technology and management situation at home and abroad, secondly, based on the existing power system of our country, it grasps the two main lines of technology and economy. The impact of gas distributed energy system on power grid enterprises is identified and measured. The effects of gas distributed energy system on the short circuit current, relay protection, network loss and voltage of distribution network are analyzed quantitatively based on the simulation results, and the power quality of distribution network is analyzed qualitatively. An adaptive particle swarm optimization (APSO) algorithm is proposed to solve the problem of location and capacity of gas distributed generation. Based on the analysis of network price, transmission and distribution price, reserve cost model and social value analysis of gas distributed energy system, the influence of gas distributed energy system on the income of power grid enterprises is calculated quantitatively. Finally, based on the above analysis, some policy suggestions on the development of gas distributed energy are put forward to protect the coordinated development of grid enterprises and gas distributed energy.
【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】：F426.61

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