【摘要】 GIS设备广泛应用于电力系统中,其局部放电缺陷将危及设备与电网的安全稳定运行。在此背景下,提出一种高分辨率的便携式GIS局部放电检测装置,该装置基于嵌入式平台开发,采用模块化设计,包括信号调理、FPGA信号采集和DSP信号处理发送三部分。通过采用FPGA进行信号采集,实现脉冲信号的较高分辨率。同时,将DSP和以太网控制器相结合,实现了监测数据的高速以太网传输。该方案对提高监测系统的脉冲分辨性能、降低成本,有一定的参考价值。更多还原

【Abstract】 GIS equipment is widely utilized in power systems, and its partial discharge will endanger the safety and stability of power grid and its relative equipment. On this situation, an embedded platform-based Gas Insulated metal-enclosed Switchgear(GIS) partial discharge detection device is designed in modularization, which consists of the signal conditioning module, Field-Programmable Gate Array(FPGA) signal acquisition module and Digital Signal Processing(DSP) module. The high resolution of pulse signal measurement is achieved by employing FPGA into the signal acquisition module and the high-speed transmission of data is realized by combining the Ethernet controller with a DSP. The designed scheme has a reference meaning of improving the measurement resolution and reducing the cost of the monitoring system.更多还原