In order to design the shore-to-ship power supply system meeting the actual requirements, the load analysis of the power system of ships berthed in ports is carried out.For the ships berthed in ports, the analysis on their power factors, their load variation characteristics, the impact of their load variation on voltage fluctuation characteristics of the shore power and the topology optimization of the shore power system is made.The load power and the load use probability are chosen as random variables, and then the load of the power system of ships berthed in ports is analyzed by the clustering analysis method.The total power demand is calculated.The analysis on real data of ships shows that the clustering analysis method can be used to classify the loads of ships berthed in ports.Based on the above, the total load demand is designed, which provides idea for load demand determination of the shore-to-ship power supply system.%为设计出符合实际要求的船舶岸电系统,对靠港后船舶电力系统负荷进行分析.对靠港后船舶的功率因数、负荷变化特性、负荷变化对岸电电压波动特性的影响以及岸电系统拓扑结构优化进行分析.选取负载的功率和工作概率作为随机变量,采用聚类分析方法对靠港后船舶电力系统负荷进行分析,计算出总功率需求.采用实船数据分析得出采用聚类分析方法可以对靠港后船舶负载进行分类,并以此为依据设计总的负荷需求,为船舶岸电系统负荷需求的确定提供思路.
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