Abstract: A new type of shore power supply system which is compatible with high voltage and low voltage is introduced. It integrates high voltage and low voltage shore power system effectively,so that the two sets of shore power systems can realize the stable and effective output of electric energy under the condition of sharing a set of high voltage frequency conversion power supply. By comparing the advantages and disadvantages of domestic and foreign shore power systems,this paper puts forward the RHVC ship shore power frequency conversion power supply,and introduces the application of shore power storage system,shore power monitoring system and other key technologies. Compared with the traditional high-low voltage separated shore power system,the new shore power system obtains the best economic and social benefits with the least investment.

Key words: shore power system, variable frequency power source, monitoring system