实船电站短路电流的计算研究

Calculation of Short Circuit Current in Real Ship Power Station

船舶电力系统设计必须充分估计到系统可能发生的短路故障,以便采取有效措施防止它们的有害影响,保证系统正常运行。根据柴油机驱动的起抛锚拖带供应船特点,提出了一种简单有效的短路计算点的选择方法,然后通过改进算法计算短路电流,为校验所选用的开关电器的短路通断能力、汇流排等器件的电动力稳定性,以及为电力系统选择性保护的设计和整定提供了依据。

Ship electric power system design must fully estimate the short circuit fault of the system, so as to take effective measures to prevent their harmful effects and ensure the normal operation of the system. According to the diesel engine driven handling tug supply ship feature selection method is proposed of a simple and effective short circuit calculation, and short-circuit current is calculated by improved algorithm. It provides the basis for the design and setting of the power stability of the short circuit breaking capacity of the switching devices, bus and other devices, as well as the design and setting of the selective protection of the power system.