基于LM法参数估计的数字式继电保护器稳定性自动检测研究  

Research on Automatic Detection of Digital Relay Stability Based on LM Method

作　　者：张斌[1] ZHANG Bin(Tianjin Guohua Panshan Power Generation Co.,Ltd.,Tianjin 301900 China)

机构地区：[1]天津国华盘山发电有限责任公司,天津301900

出　　处：《自动化技术与应用》2021年第2期24-28,共5页Techniques of Automation and Applications

摘　　要：传统方法在样本容量较小的情况下无法保证稳定性检测结果的准确性,为了提高检测精度,保证变电站安全稳定运行,提出一种基于Levenberg-Marquardt(LM)法参数估计的数字式继电保护器稳定性检测方法。经验证,所提方法可准确估计模型参数,保证数字式继电保护器稳定性检测结果的可靠性。The traditional method can not guarantee the accuracy of the stability detection results when the sample size is small.In order to improve the detection accuracy and ensure the safe and stable operation of the substation,a digital relay stability detection method based on LM method parameter estimation is proposed.It is verified that the proposed method can accurately estimate the parameters of the model and ensure the reliability of the digital relay stability test results.

关 键 词：LM法参数估计 数字式继电保护器 稳定性 检测 

分 类 号：TM774[电气工程—电力系统及自动化]