船用直流组网技术比较

全电力推进系统相对于传统推进系统具有明显优势，是目前船舶推进技术的研究热点之一。全电力推进技术正在经历由交流组网技术向直流组网技术过渡的过程。在比较直流组网技术相对于交流组网技术的优势后，详细介绍目前几种流行的已经得到实船验证的直流组网技术路线，并对其异同点进行比较。分析结果表明，直流组网技术明显优于交流组网技术，不同的直流组网技术路线本身也会对系统的性能产生巨大的影响，特别是异步发电机+全控整流器的方案相对于其他的直流组网技术路线具有明显的优势。

Comparison of different solutions of onboard DC grid

The concept of all-electric ships shows significant advantages over conventional vessels driven by diesel engines. All-electric propulsion can be further divided into two categories, i.e. AC distribution and DC distribution. Due to the benefits from the onboard DC distribution, there appears the trend that onboard DC architecture will be more and more popular. Three different solutions of DC distribution that have been installed and tested in vessels are presented in detail. Emphasis is placed on the discussion of advantages and disadvantages among these three solutions.