A Study on Dynamic Simulations of Shipboard Microgrids

• Main Authors: HU,CHUNG-HSIEN, 胡忠賢
• Other Authors: SU, CHUN-LIEN
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/yvt2f8

碩士 === 國立高雄海洋科技大學 === 輪機工程研究所 === 106 === Modern vessels require an integrated electrical network with significantly more power capacity and faster transient characteristics than traditional fleets. With the development of high-power switching technologies, an emerging industry is the application of maritime microgrids. In electric ship applications, the integration and management of propulsion, distribution, emergency, and pulsed loads are becoming significant challenges for the overall ship power network. The energy storage requirements may vary in complexity, construction, and cost to accommodate the operation of such pulse loads. To interconnect those energy storage components, the onboard dc distribution is often used to improve the energy conversion efficiency. Since many machinery and loads are still working on ac, hybrid onboard ac/dc energy storage systems, and ac and dc critical and noncritical loads is often considered for practical and economic solutions. System protection coordination issue is important because of the presence of different types of power converters and both of AC and DC power supply in this type of system. Transient, dynamic, and steady-state stabilities analyses can be carried to address this issue. This project aims to build a set of stability analysis model for maritime microgrids with different types of power converters. With the developed analysis model, the performance of system under different operating conditions can be thoroughly presented for providing a better system planning result in order to enhance system supply reliability and quality.