Unbalanced Voltages of Bow Thruster Motor Performance in the Ship Using Simulation

Q2 Mathematics

International Review of Electrical Engineering-Iree Pub Date : 2021-10-31 DOI:10.15866/iree.v16i5.18132

S. Sarwito, S. Semin, M. Zaman, Soedibjo Soedibjo, K. Ghazali

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引用次数: 1

Abstract

The performance of the bow thruster motor depends on the quality of the supplied voltage and the voltage coming out of the motor. Under unbalanced voltage situation, it will cause the poor performance of the motor. The latest regulation of International Convention for the Prevention of Pollution from Ships (MARPOL) requires that the ship's electrical system under the dynamic positioning operating mode, should be operated with a closed bus configuration. Under such configuration, motor thrusters is prone to the of electrical components failure such as harmonics. In this study, the investigation has been performed using MATLAB in order to see the effect of six voltage imbalance conditions occurring in the vessel on bow thruster motor performance with variation of voltage imbalance factor based on true definition of IEC. The resulted analysis has shown that there are various detrimental impacts resulted from different condition of imbalance of voltage. In the imbalance factor 5% condition undervoltage 3 phase has the smallest output power 22321.59 watt with the smallest torque 142.9039 Nm, but it has a power factor 0.762326 which is still allowed by rule of IEC.

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不平衡电压对船舶艏侧推力器电机性能的影响

船首推力器电机的性能取决于所供电压和电机输出电压的质量。在电压不平衡的情况下，会导致电机性能不佳。《国际防止船舶污染公约》(MARPOL)的最新规定要求船舶电气系统在动态定位操作模式下，应采用封闭母线配置进行操作。在这种配置下，电机推力器容易出现谐波等电气元件故障。在本研究中，基于IEC的真实定义，为了研究船舶中发生的六种电压不平衡情况，随着电压不平衡系数的变化，对船首推力器电机性能的影响，使用MATLAB进行了研究。结果分析表明，不同的电压不平衡状态会产生不同的不利影响。在不平衡系数为5%的情况下，欠压三相的最小输出功率为22321.59瓦，最小转矩为142.9039 Nm，但其功率因数为0.762326，仍符合IEC规定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Review of Electrical Engineering-Iree 工程技术-工程：电子与电气

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： The International Review of Electrical Engineering (IREE) is a peer-reviewed journal that publishes original theoretical and applied papers on all aspects of electrical engineering. The topics to be covered include, but are not limited to: instrumentations and measurements, power devices, energy conversion, mathematical modelling, electrical machines, power electronics and its applications (power electronics applications for home, aerospace, automotive, lighting systems and so on), signal processing, diagnostics, reliability, dependability safety and electromagnetic compatibility, power generation, transmission, and distribution, power system planning and control, network harmonics, power quality, optimization techniques, fault location and analysis, distributed generation, co-generation, renewable energy sources, energy management systems, applications of expert systems, electric and hybrid vehicles, vehicular technology, magnetic fields, theory and modelling of magnetic materials, nanotechnology, plasma engineering, quantum brownian motors, sensors and actuators, electrical circuits, teaching and continuous education, related topics. IREE also publishes letters to the Editor and research notes which discuss new research, or research in progress in any of the above thematic areas.