介损角测量中非同步采样算法的研究  

Research on dielectric loss angle measurement in the condition of non-synchronous sampling

作　　者：陈楷[1] 王卉[1] 张承学[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《继电器》2004年第14期5-7,共3页Relay

摘　　要：介绍了基波相位分离法测量介质损耗角的原理,指出了目前的软件同步采样措施难以实现真正的同步采样,并通过推导得出非同步采样条件下的基波相位分离法的算法。使用本算法,在测量时可以以固定采样率进行采样,不必根据电网频率调整采样间隔。仿真结果表明,该算法具有很高的精度。This paper introduces the principle of Fourier algorithm on dielectric loss angle measurement, and points out the fact that perfect synchronous sampling could hardly be realized, then presents a compensation algorithm in the condition of non-synchronous sampling with deduction. Using this algorithm, this paper has adopted fixed sampling rate when measuring without adjusting sampling intervals according to network frequency. Simulation shows that this algorithm has a high precision.

关 键 词：介损角测量 非同步采样算法 单片机 电压电气设备 绝缘性能 

分 类 号：TM835.4[电气工程—高电压与绝缘技术]