Design of electrical system to guarantee safety of small polar cruise ship after casualty

  Objectives  In order to solve problems such as bad weather conditions, remote routes, long rescue time and no suitable port of call for rescue supplies, which are unique to polar routes and not conducive to personnel safety, this paper presents a design concept in which the polar cruise ship itself is the best lifeboat in the event of fire or flooding, and discusses an electrical system design method for realizing this concept.

  Methods  This paper analyzes the characteristics of the polar route environment, summarizes risks and countermeasures, combines the Safe Return to Port (SRtP) concept and proposes the functional goals of important electrical systems in order to guarantee the power and personnel safety of polar cruise ships. It then provides the topology for the design of redundant electrical systems and analyzes the design scheme of typical systems combined with the realized design objectives and philosophy.

  Results   In the design and construction of small polar cruise ships, the design principle of double redundancy or isolation should be adopted as far as possible in order to achieve the design goal of maintaining the operation of important electrical systems after accidents, thereby greatly improving the life safety guarantee of cruise ship personnel.

  Conclusions  This paper can provide ideas and references for the electrical system design of small polar cruise ships.