电动钻机动力系统的功率检测及均衡

针对电动钻机动力系统即柴油发电机组的有功功率和无功功率的均衡问题,设计了一种简单实用的功率实时检测及均衡电路。利用功率检测电路的信号,发电机各控制单元可对其输出的电压和频率进行调节,从而保证发电机输出电压和频率的稳定。同时发电机多机组并网运行时,通过功率均衡电路实现各机组有功功率和无功功率的均衡分配。试验结果证明,设计的电路正确,用于钻机动力系统可降低系统故障率,提高机组的利用率,完全满足钻井作业的工况。

Power inspecting and power sharing of electric drive drilling rig power system

This paper presents a simple and applied circuit for real time power inspecting and power sharing of the diesel generator. The diesel generator control unit inputs the power signal and controls the output voltage and frequency of the generator. At the same time, the power sharing controllers control the real power share and the reactive power share during the parallel operation of the diesel generators. The experimental results prove that the presented circuit is valid and feasible.