某船发电机无功功率分配不平衡的原因及对策

Analysis and Countermeasures on Difficulty of Reactive Power Distribution of Ship Generator

某船电站柴油发电机组在系泊试验中,出现两台机组并联运行时无功功率分配精度不满足要求的故障现象。通过对其励磁系统工作原理进行分析,找出该型发电机组无功功率分配不平衡的原因,采用无功环流交叉补偿措施,实现了该型发电机组并联运行功能。

In the mooring test of the diesel generator set of the ship power station,when the two diesel generator sets run in parallel,the reactive power distribution accuracy does not meet the index.This paper analyzes the working principle of the generator excitation system,finds out the reason and difficulty of the reactive power distribution of the generator sets,adopts the cross current compensation method to solve the difficulty and realizes the parallel operation of the generator set.