基于智能间隔棒的输电线风偏舞动监测技术OA

Aiming at the problems of complex installation,high power supply and maintenance costs of existing transmission line wind deflection/galloping monitoring terminals,this paper proposes a wireless intelligent monitoring scheme based on spacer dampers:MEMS(micro-electro-mechanical-system)three-axis inertial sensors are embedded in the spacer dampers to obtain the three-directional vibration and torsional responses of the conductors;combined with the compressed sensing framework and the orthogonal matching pursuit(orthogonal matching pursuit)reconstruction algorithm,the sparsity of data is utilized and a Gaussian random sensing matrix is adopted to realize the reconstruction of the full-line galloping curves.The simulation and experimental results show that:under the given span condition,the sparsity can be adaptively set with the sampling length;when the observation ratio is 10%to 20%,high reconstruction accuracy can be achieved,which meets the online monitoring needs of long-span lines.This wireless intelligent spacer damper monitoring scheme provides an engineering feasible path for the real-time monitoring and reconstruction of transmission line wind deflection/galloping.