切换开关关断故障特征的快速数值计算方法  

Fast Numerical Method for Block Switch Turn-Off Fault Characters

作　　者：徐兴华[1] 孙文[1] 熊又星[1] 王洁[1] 腾腾[1] XU Xinghua;SUN Wen;XIONG Youxing;WANG Jie;TENG Teng(National Key Laboratory for Vessel Integrated Power System Technology,Naval University of Engineering,Wuhan 430033)

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,武汉430011

出　　处：《计算机与数字工程》2017年第5期812-816,890,共6页Computer & Digital Engineering

基　　金：国家自然科学基金(编号:51477178);国家重点基础研究发展计划(编号:2013CB035601)资助

摘　　要：在分段供电系统的故障诊断中,针对切换开关故障特征计算时间开销过大的问题,提出了一种快速数值计算方法,设计递推公式,对电流过零信号占空比和电流局部积分值的进行数值计算。与常规数值计算方法相比,在不降低计算精度的条件下,可明显减少计算时间。最后,通过实验对方法进行了验证,实验结果表明:该方法可有效提高切换开关故障诊断的计算效率。In the fault diagnosis of sectional power supply system,focus on the switch fault calculation time overhead problem,this paper proposes a method of fast numerical calculation.The recursive formulas are designed for duty ratio of current zero crossing signal and current local numerical integral value.Comparing with the conventional numerical method,the computation time can be significantly reduced without reducing the accuracy of the calculation.Finally,the experimental results show that the proposed method can effectively improve the efficiency of the fault diagnosis.

关 键 词：切换开关 过零信号 占空比 数值计算 

分 类 号：TM359[电气工程—电机]