摘要
随着智能电网的提出,雷电预警在电力系统有着迫切的需求。针对目前国内外的现状,研制出一种新型的场磨式电场仪,该装置在探头的传感器方面作了改进,特别是在同步信号的获取方面作了相应的简化。在电机控制方面采用PWM技术,同时引入了PID算法,确保了电机的恒速运转,从而提高了电场仪测量值的线性度。设备具有GPS授时功能,为雷电预警系统提供了统一准确的时标,方便了数据处理和分析。根据实际现场的应用数据分析,达到了预期的效果。
With the development of the smart grid, lightning warning in the power system has an urgent demand. In view of the present situation at home and abroad, a new field mill electric field device is designed with improvement in terms of the probe sensor, which makes great simplification especially in the case of synchronous signal acquisition. PWM technology is introduced in motor control, and PID algorithm is adopted to ensure the motor constant speed operation, and to improve the linearity of electric field measurement. The proposed device also possesses GPS clock function to provide a unified punctual time scale for lightning warning system which will make data processing and analysis more convenient. According to the analysis of the actual application data, the expected effect has been achieved.
出处
《电测与仪表》
北大核心
2014年第3期68-72,共5页
Electrical Measurement & Instrumentation
