Systematic Analysis of Electrical and Climatic Environment and their Impact on Power Quality in Public LV Networks

公共低压电网电力和气候环境及其对电能质量影响的系统分析

基本信息

项目摘要

Power Quality is divided in voltage and current quality. Both are time- and site-dependent and can be characterized by different parameters and indices. The different factors with impact on Power Quality can be assigned either to the electrical or the non-electrical environment. On one hand the electrical environment is described by the type and number of the connected consuming and generating equipment (consumer topology and generation topology) and on the other hand by the topology and technical parameters of the low voltage distribution grid (network topology). The non-electrical environment includes i.a. the impact of climatic parameters, like temperature or solar radiation. Goal of the project is the systematic identification and classification of correlations between the environmental impact factors and Power Quality based on suitable parameters. An essential requirement for the work is a comprehensive database that is created by a coordinated measurement campaign. Finally the feasibility of a Power Quality estimator based on the above mentioned impact factors of electrical and climatic environment is assessed.In the previous research a site-specific characterization of current quality based on topology and weather indices was successfully realized. Therefore a new method for the determination of topology- and weather-dependent quality profiles was introduced. Initial studies had shown that most significant relationships are expected for consumer topologies consisting of only one type of consumers (e.g. only residential) and days with distinctively different weather conditions (e.g. only sun). Therefore the research activities up to now were limited to these conditions. In the further work analyses are extended to sites that consist of a mixture of different consumer categories (e.g. residential and office or shops) as well as to days with less distinctive weather conditions. Furthermore consumer topology-specific quality profiles shall be developed by comparing the site-specific quality profiles for measurement sites with similar consumer topology. A continuation of the measurement campaign enables in-detailed analyses of methods for assessing long-term trends. In addition this allows the research on scalability effects. This effect describes the relation between the number of consumers and the level of a particular power quality parameter (e.g. current harmonics). Main focus is put on residential topologies, because the variance of number of customers (households) between different sites is most significant (some ten up to several hundred). Altogether the results provide a substantial basis for a feasibility study on methods to infer from indices characterizing electrical and climatic environment to power quality with an adequate accuracy. This so called Power Quality estimator can e.g. be based on expert systems, artificial neural networks.
电能质量分为电压质量和电流质量。两者都是时间和地点依赖性的,可以用不同的参数和指数来表征。影响电能质量的不同因素可以分配给电气或非电气环境。一方面,电气环境由所连接的消耗设备和发电设备的类型和数量(消耗设备拓扑和发电设备拓扑)来描述,另一方面,由低压配电网的拓扑和技术参数(网络拓扑)来描述。非电气环境包括:气候参数的影响,如温度或太阳辐射。该项目的目标是基于合适的参数系统地识别和分类环境影响因素和电能质量之间的相关性。这项工作的一个基本要求是通过协调的测量活动建立一个全面的数据库。最后,对基于上述电气环境和气候环境影响因素的电能质量评估方法的可行性进行了评估。在前期研究中,成功地实现了基于拓扑结构和气候指数的特定地点电能质量特征。因此,一种新的方法来确定拓扑和天气依赖的质量配置文件被引入。最初的研究表明,对于仅由一种类型的消费者(例如仅住宅)和具有明显不同的天气条件(例如仅太阳)的日子组成的消费者拓扑,预期最显著的关系。因此,迄今为止的研究活动仅限于这些条件。在进一步的工作中,分析扩展到由不同消费者类别(例如住宅和办公室或商店)组成的地点,以及天气条件不太明显的日子。此外,应通过比较具有类似用户拓扑结构的测量站点的站点特定质量配置文件,开发用户拓扑结构特定质量配置文件。继续开展衡量活动,可以对评估长期趋势的方法进行详细分析。此外,这允许对可扩展性影响的研究。这种效应描述了用户数量与特定电能质量参数(例如电流谐波)水平之间的关系。主要关注的是住宅拓扑结构,因为不同地点之间的客户(家庭)数量的差异是最显着的(大约十到几百)。总之,结果提供了一个实质性的基础上的可行性研究的方法来推断从指标表征电力和气候环境的电能质量具有足够的精度。这种所谓的功率质量估计器可以例如基于专家系统、人工神经网络。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Assessment of Power Quality performance in distribution networks part II - Performance Indices and ranking of network buses
配电网电能质量绩效评估第二部分 - 绩效指数和网络母线排名
Seasonal variations in long-term measurements of power quality parameters
电能质量参数长期测量的季节性变化
  • DOI:
    10.1109/ptc.2015.7232396
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M. Domagk;J. Meyer;P. Schegner
  • 通讯作者:
    P. Schegner
Trend identification in power quality measurements
电能质量测量中的趋势识别
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Professor Dr.-Ing. Peter Schegner其他文献

Professor Dr.-Ing. Peter Schegner的其他文献

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{{ truncateString('Professor Dr.-Ing. Peter Schegner', 18)}}的其他基金

Loop Circle Arc Theory (LoCA) - New Method for comprehensive evaluation of Cross-Sectoral and Cellular Organized Energy Systems -
循环圆弧理论(LoCA) - 跨部门和细胞组织能源系统综合评价新方法 -
  • 批准号:
    359922501
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Reliable detection of electrical islands. Base for a cellular grid operation mode.
可靠地检测电气孤岛。
  • 批准号:
    266767012
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Analytische Berechnungs- und messtechnische Bewertungsverfahren von Generatorstromwandlern mit erweitertem Frequenzmessbereich
扩展频率测量范围的发电机电流互感器解析计算和测量评价方法
  • 批准号:
    206426035
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Untersuchung der signaltheoretischen Grundlagen zur Analyse von Fehler- und Störfallaufzeichnungen
研究用于分析错误和事件记录的信号理论基础知识
  • 批准号:
    35940379
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Beurteilung der Erdschlusslichtbogenlöschung in resonanzsternpunktgeerdeten Verteilnetzen unter besonderer Berücksichtigung der Harmonischen
特别考虑谐波的谐振星点接地配电网接地故障灭弧评估
  • 批准号:
    21336224
  • 财政年份:
    2005
  • 资助金额:
    --
  • 项目类别:
    Research Grants
System perturbation caused by the forced utilization of FACTS and HDVC in the European power system
欧洲电力系统强制使用FACTS和HDVC引起的系统扰动
  • 批准号:
    5363867
  • 财政年份:
    2002
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Investigations on the efficiency of different solution methods for dynamic network calculation problems with reference datasets within the DFG´s priority programme "System theoretical methods for operating the Transeuropean power systems"
在 DFG 优先计划“跨欧洲电力系统运行的系统理论方法”中,利用参考数据集研究动态网络计算问题的不同求解方法的效率
  • 批准号:
    5363889
  • 财政年份:
    2002
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Ermittlung vereinfachter nichtlinearer dynamischer Modelle für elektrische Verbundsysteme
电气互连系统简化非线性动态模型的确定
  • 批准号:
    5109832
  • 财政年份:
    1998
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes

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