基于ETAP软件的船舶侧推大功率电动机起动仿真分析

Simulation and Analysis of Starting of High-power Electromotor of Ship Tunnel Thruster with ETAP Software

船舶侧推大功率电动机起动时会导致电网产生较大的电压降,影响电网安全。介绍了直接起动、降压起动等起动方式,并依据电机起动电压降的经验公式计算电机起动电压降:,然后以实船方案为例,基于ETAP软件对船舶侧推大功率电动机起动进行了仿真分析,给出了发电机容量的优化方案,为实船起动方案的制定提供了有益参考。

When a high-power electromotor of ship tunnel thruster is started, serious voltage drop will occur and the power gird safety will be affected. In this paper,the starting modes such as direct start and buck start were introduced. The voltage drop was calculated according to the empirical formula of the starting voltage drop of motor. The simulation of the motor start of a real ship was carried out on the basis of ETAP software. The optimization scheme of the generator capacity was given ,providing a useful reference for the motor starting scheme.