1、 自学考试自学考试 毕业设计（论文）毕业设计（论文） 题目题目： 电力市场下的无功优化 学生姓名：学生姓名： 学学 号：号： 班班 级级: 专专 业：业： 指导教师：指导教师： 年年 月月 电力市场下的无功优化 电力市场下的无功优化 摘要 随着电力市场在世界各地的不断改革，无功电压辅助服务作为一项重要的辅助服 务，从无偿提供到有偿服务已经成为电力市场发展的趋势，无功电价的提出也势必对系 统运行产生影响，进而对无功规划产生影响。传统的电力企业必须打破发、输、配电一 体化的电力服务结构。无功的控制在电力市场条件下作为一种辅助服务，是使电网中的 输电交易能够顺利进行的一个重要条件。 对地区电网进行实
2、时无功优化具有如下优点：提高系统的安全性；改善系统中无功 的分布，是系统各个节点电压保持在一个较好的水平；降低系统网损，使得系统的运行 费用降低。 本文以屏南县电网作为例子，在计及电价 的基础上，分析电力市场条件下的无功 优化。首先，根据电网主接线图画出结构简图，根据给定数据确定线路和变压器型号； 其次，计算线路和变压器参数，再用 BPA 软件进行潮流计算；再次，提出无功优化数学 模型，对屏南县电网进行无功优化计算；最后，分析在计及无功电价的情况下，无功优 化前后屏南县电网获得了多少经济效益。 关键词：电力市场；降低网损；无功优化 电力市场下的无功优化 REACTIVE POWER MARKE
3、T OPTIMIZATION ABSTRACT With the electricity market around the world continue to reform, reactive power and voltage support services as an important support services, from free to paid services provide the electricity market has become the development trend of the proposed reactive power price is bo
4、und to have on the system running Impact, then an impact on the reactive power planning. Enterprises must break the traditional power generation, transmission and distribution services to integrated power structure. Reactive power control in power market conditions as a supplementary service, is to
5、make the transmission grid in the transactions can be an important condition for the smooth. Regional power grid in real time reactive power optimization has the following advantages: improved security of the system; to improve the distribution system, reactive power, a system voltage of each node t
6、o maintain a good level; reduce system power loss, lower operating costs make the system . In this paper, as an example Pingnan grid, taking into account the reactive power price based on the analysis of the electricity market reactive power optimization under the condition. First, according to a power grid structure of the main wiring diagram of the picture, according to the given data to determine the line and transformer models; Second, the calculation of line and
