兼顾变电站暂降严重性及装置差异的电能质量监测网络优化

发布时间：2018-03-01 03:30

本文关键词： 变电站监测网络暂降严重性监测装置差异综合评价等级划分　出处：《电力系统自动化》2017年03期 　论文类型：期刊论文

【摘要】：提出了一种兼顾变电站暂降严重性及装置差异的电能质量监测网络优化方法。首先,引入落雷密度、污区等级、电缆化率、额定容量等指标衡量变电站暂降严重性,采用主客观组合赋权法进行变电站暂降严重性评价,并进行等级划分。其次,根据最新电力行业标准,将监测装置按性能划分为A,B,C,D这4类。在此基础上,提出电能质量监测网络的阶段式优化方法:第1阶段,改进传统可观测区域(MRA)矩阵法,引入严重性评价值,在若干变电站配置A类监测装置,保证对全网电压暂降完全可观测;第2阶段,根据变电站严重性等级,依次配置4类监测装置,重点监测电压暂降,并兼顾其他电能质量问题。最后,通过实例仿真计算验证了所提方法的有效性和可行性。
[Abstract]:A network optimization method of power quality monitoring considering the severity of substation sag and device difference is proposed. Firstly, the severity of substation sag is measured by introducing lightning drop density, pollution zone grade, cable conversion rate, rated capacity, and so on. The method of subjective and objective combination weight is used to evaluate the severity of substation sags, and the grading is carried out. Secondly, according to the latest power industry standards, the monitoring devices are classified into four categories according to their performance. In the first stage, the traditional observable region (MRA) matrix method is improved, the severity evaluation value is introduced, and a class A monitoring device is installed in some substations to ensure that the voltage sag of the whole network can be observed completely. In the second stage, according to the severity grade of substation, four kinds of monitoring devices are arranged in turn, which focus on monitoring voltage sag and other power quality problems. Finally, the effectiveness and feasibility of the proposed method are verified by an example.
【作者单位】：广东省绿色能源技术重点实验室华南理工大学电力学院;
【基金】：广东省自然科学基金资助项目(2016A030313476)~~
【分类号】：TM76;TM63

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