基于可中断负荷管理的阻塞问题研究

发布时间：2018-03-04 18:33

本文选题：阻塞管理　切入点：可中断负荷管理　出处：《郑州大学》2017年硕士论文　论文类型：学位论文

【摘要】：近几年,随着人民生活水平的提高,现代社会对电力需求愈来愈大;由于我国经济发展不均衡,电力需求的地域性限制越来越明显;自2002年电力改革以来,电力市场呈多元化发展,新型的电力市场对电能自由流通的要求愈发增高;这些对输电网络的要求越来越高,因此输电阻塞问题也愈发严峻。电力系统中的阻塞是由于系统受各种静态安全约束限制而产生的,如何有效地消除阻塞是本文研究的重点问题。作为一种有效的电力资源,可中断负荷可以用于阻塞管理。该文主要从用户侧考虑,研究了可中断负荷参与输电阻塞管理的方案。该论文主要完成了下述工作:第一,通过搜集大量的资料,分析了国内外对阻塞管理的研究现状,目前阻塞管理的方案主要分为两部分即长期阻塞管理和短期阻塞管理,长期的阻塞管理方案主要是改善网络参数,短期的阻塞管理主要通过调节发电机出力、用户负荷来缓解阻塞,本文主要研究短期阻塞管理;第二,本文研究了可中断负荷管理意义,分析了可中断负荷合同的主要内容,重点建立了考虑中断提前通知时间、中断时间、中断次数、中断意愿等因素的中断补偿电价模型;第三,分析了支路功率与发电机出力之间的灵敏度关系,学习了发电量转移分布系数、综合发电量分布系数与支路功率的计算方法,建立了仅靠发电机调节的阻塞管理模型;第四,在灵敏度分析的基础上,建立了以中断容量最小,中断补偿费用最小为目标的可中断负荷参与的输电阻塞管理模型;第五,论文以IEEE-14节点系统为例,在Matlab应用环境下,实现了支路功率、灵敏度系数的计算,实现了可中断用户选择的最优优化,同时分析了仅靠发电机调节的阻塞管理可以缓解阻塞,但有一定的局限性,可中断负荷参与阻塞管理考虑了发电机的自我调节作用,可以有效改善阻塞,且减少了中断负荷容量,同时有利于提高用户参与阻塞管理的积极性,最终,可以有效改善用户的用电习惯,提高社会效益。
[Abstract]:In recent years, with the improvement of people's living standard, the demand for electric power in modern society has become more and more great; because of the imbalance of economic development in our country, the regional restriction of power demand has become more and more obvious. Since 2002, the electric power reform, With the diversified development of the electricity market, the demand for the free circulation of electricity in the new power market is becoming higher and higher, and these demands on the transmission network are becoming higher and higher. Therefore, the problem of transmission congestion is becoming more and more serious. The congestion in power system is caused by various static security constraints. How to eliminate congestion effectively is a key problem in this paper. Interruptible load can be used in congestion management. In this paper, the scheme of interruptible load involved in transmission congestion management is studied from the user side. The main work of this paper is as follows: first, by collecting a large amount of data, This paper analyzes the current research situation of blocking management at home and abroad. At present, the schemes of congestion management are mainly divided into two parts: long term congestion management and short term congestion management, and long term congestion management schemes are mainly to improve network parameters. Short-term congestion management mainly alleviates congestion by regulating generator output and user load. In this paper, short-term congestion management is mainly studied. Secondly, the significance of interruptible load management is studied, and the main contents of interruptible load contract are analyzed. The interruption compensation price model considering the factors such as interrupt advance notice time, interruption time, interruption number and interruption will is established. Thirdly, the sensitivity relationship between branch power and generator output is analyzed. In this paper, we have studied the power generation transfer distribution coefficient, integrated the calculation method of generating quantity distribution coefficient and branch power, and established a block management model which is only regulated by generator. 4th, on the basis of sensitivity analysis, we have established the minimum interrupt capacity, In 5th, the paper takes IEEE-14 node system as an example, and realizes the calculation of branch power and sensitivity coefficient in Matlab application environment. The optimal optimization of interruptible user selection is realized. At the same time, it is analyzed that blocking management can alleviate congestion only by means of generator regulation, but there are some limitations. Interruptible load participates in blocking management and considers the self-regulation of generator. It can effectively improve congestion, reduce the capacity of interruption load, at the same time, improve the enthusiasm of users to participate in congestion management. Finally, it can effectively improve the power consumption habits of users and improve social benefits.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM73

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