In the case of naval vessels, the cost of accidents or failures that are not identified in advance is very high, so managing the risk is even more important when developing a state-of-the-art military system. The HILS method is considered to be a verification method in which the strengths and weaknesses of the computer simulation method and the LBTS method are somewhat compromised. On the other hand, the LBTS method has the advantage of being able to thoroughly verify the system in advance but has a disadvantage in that it requires a lot of costs. Among them, the computer simulation method requires relatively little cost, but it has the disadvantage that the contents that can be verified are significantly limited. Computer simulation, HILS (Hardware-In-the-Loop Simulation), LBTS (Land-Based Test Site) are known as representative methods for verifying the system. Where a state-of-the-art system is developed, it is very important to reduce the risk of the entire project by verifying the performance of the system in a suitable way in advance. Keywords-DC grid, DC microgrid, Submarine Power System, Integrated Power System, Electric Propulsion, LBTS, Land-Based Test System Through the LBTS project, 146 technical risks were identified and improved in advance, and the effect of the project was estimated to be more than 600 million dollars. The LBTS for Jangbogo-III Batch-I is mostly composed of the actual equipment to be mounted on the submarine. Successful Implementation of Land-Based Test Site for Submarine DC Power SystemĪbstract – In this article, the Land-Based Test Site (LBTS) project performed to verify the safety and performance of the next-generation submarine of the Republic of Korea, Jangbogo-III Batch-I, is introduced.

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