Comparison of Energy Savings in the Ship Seawater Cooling Pumps Applying Three-phase Induction Motor and Switched Reluctance Motor

• Main Authors: Hung-JuChou, 周宏儒
• Other Authors: Chien-Hsing Lee
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/94441209423492818271

碩士 === 國立成功大學 === 系統及船舶機電工程學系 === 105 === The energy consumption of a ship central cooling system occupies a relatively large proportion of the overall energy consumption and the largest power consumption in the cooling system is derived from the operations of pumps. So far the three-phase induction motor (IM) is predominantly adopted in the pump system in current ships. However, owing to the switched reluctance motor (SRM) has the advantages of DC motor and IM and low manufacturing costs, this motor system has been paid more attention by many industries recently. Referring to the results of previous studies, this study uses the Matlab/Simulink to model two small-scale ship central cooling systems that are configured with the switched reluctance motor drive (SRD) system and the three-phase IM variable-frequency system respectively. And then to simulate the working conditions of these two simulation systems and to compare their differences of dynamic results and the energy-saving effects that may verify the feasibility of using the SRD system in seawater cooling pumps. The results of this study can provide a reference for developing a seawater cooling pump system driven by the SRM system. The results of this study reveal that the similar work results and the ability to achieve work requirements between these two simulation systems. Furthermore, as the performance of the motor driven system consumption and the torque output, the outcome of adopting the SRD system is superior to that of adopting the three-phase IM variable-frequency system and the system dynamic performance of the former are also outstanding.