摘要
本文分析了某船舶电力系统的结构和组成,基于电力系统仿真软件PSCAD建立了该船的电力系统仿真模型。利用仿真模型分析了该船电力系统在大功率异步电动机起动冲击下的动态特性,仿真结果表明,在有限的船舶电力系统容量下,异步电动机起动会对电网产生较大的冲击,造成电网电压突降和频率波动,当异步电动机的功率增大到一定程度时,会导致电力系统供电品质不满足船舶电力系统标准要求,需要增大机组容量或采取措施降低冲击的大小。
In this paper, the structure of the ship power system is analyzed. The simulation model of the power system is established based on software PSCAD, and the dynamic characteristic of the power system impacted by high power induction machine starting is analyzed. The simulation results show that induction machine starting will bring great impulse on the power network under the limit power system capability and result in voltage degrease and frequency fluctuation. When the power of induction machine increase to some degree, the power system supply quality will not satisfy the standard, and need to increase the system capability or decrease the impulse by means.
出处
《船电技术》
2011年第8期5-9,15,共6页
Marine Electric & Electronic Engineering
