CAJ | 학술논문

为了对配电网数据质量进行检测、修正和评估，针对配电网SCADA系统的电压量测数据，提出基于多源信息匹配、基于同点多时段对比以及基于多点量测信息匹配的数据质量检测方法，在多点量测信息匹配的判断中基于潮流计算的电压数据来估计误差。基于初级的量测量突变检测并综合上述3种方法，提出一种基于多源多时空信息的电压数据质量综合检测和修正方法。最后，给出了单一电压数据质量的评级方法以及整体电压数据质量的评估标准。采用PG&E 69节点配电系统对上述方法进行验证。结果表明，所提方法能有效检测出不满足精度要求的电压数据，并对其进行准确修正，同时可为运行人员评估数据质量提供参考。
위료대배전망수거질량진행검측、수정화평고，침대배전망SCADA계통적전압량측수거，제출기우다원신식필배、기우동점다시단대비이급기우다점량측신식필배적수거질량검측방법，재다점량측신식필배적판단중기우조류계산적전압수거래고계오차。기우초급적량측량돌변검측병종합상술3충방법，제출일충기우다원다시공신식적전압수거질량종합검측화수정방법。최후，급출료단일전압수거질량적평급방법이급정체전압수거질량적평고표준。채용PG&E 69절점배전계통대상술방법진행험증。결과표명，소제방법능유효검측출불만족정도요구적전압수거，병대기진행준학수정，동시가위운행인원평고수거질량제공삼고。
In order to detect, correct and evaluate data quality in distribution network, methods respectively based on information matching of multi data sources, comparison in multi time intervals at the same bus and measured information matching of multi buses are presented to detect measured voltage data of SCADA system in distribution network. Based on power flow data, a precision estimation method for calculated voltage data is proposed, providing criterion for method based on measured information matching of multi buses. Then, combined with obvious saltation detection of measured data and three above-mentioned methods, a comprehensive detection and correction method based on multi temporal and spatial information of multi data sources is proposed to detect voltage data quality. Finally, evaluation standards of voltage data quality for single data and data sets are presented respectively. Distribution network with 69 buses is used to verify above methods. Results indicate that voltage data, not satisfying precision requirements, could be effectively found out and corrected accurately with the proposed methods. Furthermore, data quality evaluation could provide operators with reference.