【摘要】 高压架空线产生的工频电场对周围环境的影响是电磁兼容技术和环境保护研究的重要领域。首先分析了球形传感器的测量原理,并设计了一种基于GPRS无线数据传输的工频场强测量仪。与传统的场强仪相比,该场强仪具有可对工频场强环境进行实时监控及远程控制等优势。基于模拟电荷法,建立了高压架空线下空间电场的数学模型,计算了高压架空线下工频电场的分布,并对仿真模型对某500 k V同塔单回高压输电线进行仿真,通过与测量结果比较表明:该系统采样精度较高,数据传输可靠性强。更多还原

【Abstract】 Power-frequency electric field generated by the high-voltage overhead line impacted on the surrounding environment was the important area of EMC technology and environmental protection research. The spherical sensor measuring’s principle was analyzed. A measuring instrument of power-frequency electric field based on the GPRS wireless data transmission was designed. Compared with the traditional, the power frequency field strength environment for real-time monitoring and remote control was the advantage. Based on the charge simulation method,the mathematical mode under the high voltage transmission lines was established, and the distribution of the power-frequency electric field was calculated. The 500 k V single circuit of high voltage transmission lines were simulated in the same tower. The results show that the sampling accuracy of the system is higher and the data transmission is more reliability.更多还原