基于单相dq0变换的双电源转换开关电压故障检测  

Voltage fault detection of dual power transfer switchbased on single-phase dq0 conversion

作　　者：欧阳俊峰 迟长春(指导)[1] 陆彦青[1] OUYANG Junfeng;CHI Changchun;LU Yanqing(School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)

机构地区：[1]上海电机学院电气学院,上海201306

出　　处：《上海电机学院学报》2022年第4期215-220,共6页Journal of Shanghai Dianji University

摘　　要：为加快双电源转换开关的故障检测速度,提出了一种新型dq0电压故障检测算法。利用卡尔曼滤波算法对采样信号去噪,通过dq0变换构造三相电压,使用导数滤波法省去了滤波器,解决了低通滤波器的延时问题,并通过Simulink仿真验证了该算法的快速性。仿真实验表明:采样电压误差范围由±0.17%缩小至±0.08%,检测电压故障时间缩短到1ms内,缩短了转换开关的切换时间。To improve the fault detection speed of the dual power transfer switch,a new dq0 voltage fault detection algorithm is proposed.Kalman algorithm is used to denoise the sampled signal,dq0 transform is used to construct the three-phase voltage,and derivative filter is used to replace the filter to solve the delay problem of the low-pass filter.The rapidity of the algorithm is verified by Simulink simulation.The simulation results show that the sampling voltage error range is reduced from±0.17%to±0.08%,the detection voltage fault time is reduced to 1ms,and the switching time of the transfer switch is shortened.

关 键 词：新型dq0算法 双电源转换开关 卡尔曼算法 导数滤波法 

分 类 号：TM564[电气工程—电器]