| 英文摘要 |
In recent years, the gasoline prices are rising, and the petrochemical resources are not infinitely abundant on earth. Because of the environment problems of global warming, many countries have begun to seek alternative energy sources such as solar and wind power. The Kyoto Protocol objective is to confine the gas emission of carbon dioxide, and the exhausts of NOX, SOX and CO2 from fishing boat engines are limited by IMO (International maritime organization). As a result, it is a big challenge to generate electricity by using diesel engines.
Today's renewable energy technologies are progressing, but energy storage has always been the problem. Lead-acid batteries have been generally recommended for using as the energy storage devices in integration with the solar photovoltaic energy. Nevertheless, their properties of disadvantage are low working voltage, short charging and discharging life time, long charging time and not able to drive heavy loads. Consequently, scientists have invented supercapacitors to overcome the drawbacks of energy storage using lead-acid batteries.
Usually, lead-acid batteries are used to start the genset engines as well as to supply electricity to navigation instruments and emergency lighting for coast fishing vessels. Nevertheless, some of the disadvantages of using lead-acid batteries are low voltage production, short life span, long charging duration, high maintenance, low efficiency, etc. The purpose of this study is to develop a SEPS (Supercapacitor energy power system) energy storage system with its advantages on short charging duration, wide output voltage range and green power. Moreover, the new energy storage module set to replace some of the loads supplied by diesel-generating power will be investigated in order to achieve the goal of high efficiency of power usage on fishing vessels. |