摘要
提出基于相似度原理异构等效的电能质量监测装置校验信号实现的新方法,通过将监测装置采样信号序列与标准源输出信号序列进行时序平移相似度计算,分析校验信号同步方法和构成;研究异构校验信号输出实现,给出监测装置整点采样和随机采样时异构校验信号输出实现方法。开发了电能质量监测装置校验信号实现软件系统,对监测装置精度进行校准验证,校验结果表明运用此方法能彻底解决标准源输出信号序列与监测装置采样序列无法同步、相邻校准信号之间存在相互干扰等问题,有效的提高了对装置精度检验的准确度和可靠性,对提高电网和用户电能质量监测水平,以及电能质量监测装置技术提升和产业发展起到了积极的促进作用。
A new method of calibration signal implementation in power quality monitoring devices based onheterogeneous equivalence of similarity theory is proposed in the paper. Timing-shift similarity calculation betweenthe sampling signal sequence of the monitoring device and the output signal sequence of standard source has beencarried out so as to analyze calibration signal synchronization method and its composition. Output method ofheterogeneous calibration signal has been considered in the case of the whole point sampling and random samplingof the monitoring device. In addition, the calibration software about power quality monitoring devices is developed tomeasure the accuracy of the devices. Calibration results show that the questions of asynchronous between thesampling signal of the monitoring device and the output signal of standard source, and mutual interference betweenadjacent calibration signals are completely solved, which will greatly improve the accuracy and reliability ofdetecting the monitoring device, as well as the level of monitoring grid and user power quality. Moreover, it will playa positive role in upgrading and promoting the technology and industrial development of power quality monitoringdevices.
出处
《电测与仪表》
北大核心
2014年第12期75-80,共6页
Electrical Measurement & Instrumentation
基金
国家电网公司重点科技项目<电能质量高级分析关键技术研究应用>
关键词
电能质量监测装置
相似度原理
异构等效
校验信号
同步
power quality monitoring devices, similarity theory, heterogeneous equivalence, calibration signal,synchronous
作者简介
陈兵（1977-），男，博士，高级工程师，从事电能质量、新能源并网技术、高压直流输电等领域的研究。Email：cbsure@163．com
李群（1967-），男，博士，研究员级高级工程师，从事电能质量、新能源并网技术、系统计算分析等领域的研究。
袁晓冬（1979-），男，高级工程师，从事电能质量、新能源并网技术、配电网技术等领域的研究。
杨洪耕（1949-），男，教授，博导，研究方向：电能质量监测信息智能检索技术、电能质量高层分析及智能预警、配电网故障定位技术等。
罗珊珊（1988-），女，助理工程师，从事电能质量监测与评估技术等领域的研究。
