船舶电力推进交流与直流系统对比研究

对交流与直流船舶综合电力推进系统的设计进行了对比分析,将船舶电力推进系统的设计分为系统设计和关键设备选型设计两部分进行了研究。在系统设计方面,主要对比了交流与直流系统的短路电流、选择性保护、谐波抑制的异同。在关键设备选型设计方面,对ABB、SIMENSE和EMS三个技术方案对直流母排故障的保护方面进行了分析。随后对直流船舶电力推进系统的优势与不足进行了分析,最后对船舶电力推进交流与直流系统对比进行了总结。

Comparative Study on AC and DC Electric Propulsion Systems of Ship

The design of electric propulsion systems for integrated ship is compared and analyzed, the design of marine electric propulsion system is divided into the design of system and the design of key equipment selection. In the aspect of system design, the similarities and differences of short -circuit current, selective protection and harmonic restraining between AC and DC s ystems are compared. In the aspect of key equipment selection design, three technical schemes, ABB, SIMENSE and EMS, are analyzed for protection of DC bus fault. Then the advantages and disadvantages of DC electric propulsion system are analyzed. Finally, the comparison between AC and DC electric propulsion is summarized.