电力谐波对卫星天线驱动电机的影响

大型数据信息处理中心需配UPS(Uninterruptible Power System)系统供电,但这样的系统设计中UPS在输入端产生的谐波电流可能会影响配电系统的其他设备。以北京气象卫星地面站供电系统为实例,分析了在应急备用电源供电情况下,当卫星接收天线跟踪卫星时,天线的驱动电机出现明显的抖动现象系UPS工作时产生的谐波电流所致,阐述了UPS电源产生的谐波电流产生的原理以及对配电系统电能质量的影响,给出采用设计有源滤波器消除电力谐波影响以解决天线驱动电机抖动问题的实践方法,总结新技术整流电源产生谐波的扩展趋势,并建议重视大型数据中心配电系统在新形势下电能质量及电磁问题的研究。

Impact of Electric Power Harmonic Waves on Satellite Antenna Drive Motors

Large data processing centers need to match UPS (Uninterruptible Power System) power supply systems, but in the system design of UPS, the harmonic currents from the input terminal may influence the other devices of the power distribution system. Taking the power supply system of the Beijing Meteorological Satellite Ground Station as an example, the emergency power supply situation is analyzed while the satellite receiving antenna tracking satellite, and there appeared obvious dithering in the drive motor, which was induced by the harmonic currents of UPS. The principles and the influence of UPS power supply working on the electric power distribution system are introduced, and the design of an active filter to eliminate electric power harmonic influence and the method to reduce antenna drive motor dithering are described. The expansion trends of electric power harmonic waves induced by new rectification power supply technology are discussed.