Advanced Materials Research Vols. 347-353

Abstract: Supercapacitors have characteristics of high power density, long life, and quick charging and discharging. DC-DC converter can be used for changing, processing and regulating the power. Supercapacitors energy storage system consisted of supercapacitors and DC-DC converter can be widely used in distributed power generation system to the stability of dc bus voltage and the improvement of the power quality. For simulation, the mathematical models of DC-DC converters and supercapacitors are developed using MATLAB/SIMULINK. The sliding mode controller of the supercapacitors energy storage is presented, and the simulation results verify the control method is feasible．

Abstract: Sodium chloride was used as main component for production of electrolytic water in this study. Washing treatment by using the electrolytic water was the major processing and its high oxidant ability or bactericidal ability would inhibit and kill the microorganism, in hope to extend the preservation period. The scallion (Allium fistulosum L.) at Sunshin area in Yilan County of Taiwan and water convolvulus (Ipomoea aquatica Forsk.) was selected in this study because the volatility of their price was easily influenced by typhoons and festivals. The experimental results indicated that the optimal preservation conditions for scallions were washed with 40 ppm electrolytic water (as ClO₂ at 5°C) for 3 minutes and stored in the sealed polyethylene (PE) bags without ethylene absorbent at 5°C and the shelf life was able to reach to 3 weeks and very low yellowing or decaying index were performed. The optimal preservation conditions for water convolvulus were that 30 ppm electrolytic water (as ClO₂ at 5°C) with ultrasonic spray washing for 5 minutes and stored in the PE bags without ethylene absorbent at 10°C and the shelf life was also able to reach to 21 days and kept visual quality.

Abstract: This thesis proposes the construction of the electric vehicle battery-swap station after a comparision of energy supply models between battery swap and charging and fast charging. Electric vehicle battery-swap station can be divided into several parts: power supply system,charging system,battery rack, battery-swap system, monitoring system and station power supply system and so forth. In addition, this thesis makes a specific illustration to the battery charging system and battery-swap system. Finally, the application and future development of electric vehicle battery-swap station is conferred in this thesis.

Abstract: The energy supply infrastructures construction is the prerequisite and basis for the large-scale promotion and application of electric vehicles (EVs). The characteristics and current construction situation of several EV power supply infrastructures in China such as AC charging spot, charging station and battery swap station are introduced first, and the characteristics of time combination mode and space combination mode for the construction of EV charging facilities are also discussed. Meanwhile, the features of operation mode for EV power supply infrastructures in different developing stage of are analyzed, and the main bodies for EV power supply infrastructures construction are also introduced.

Abstract: Development of EV is an important means which optimize chinese energy supply structure and break security strategy of energy.As the state increasing subsidy strength and constructing large-scale charging infrastructure for EV,EV is expected to become an important means of transport,and in the future EV is becoming to an important mobile storage unit in smart grid, playing the dual role of energy comsume and energy storage. Combination of domestic charging infrastructure and charge mode, discuss the charge and discharging and sale of electric technology for EV, which provide some reference for business model of the charging infrastructure,proposed to help the orderly charging and discharging for EV, realize win-win situation for power grid and the user.

Abstract: To meet demands for improvements in the CO,NOx and smoke intensity and fuel economy from diesel engine,the emulsified diesel fuel are choose as alternative fuel .It is prepared through selecting appropriate compound-surfactants on the basis of the HLB (hydrophilic and lipop- hilic balance) value.Comparative experiments between the emulsified fuels and diesel are undertook based on engine bench test in the model 295A diesel engine without any modification. The results indicate that smoke intensity and NOx emissions are reduced greatly when using the emulsified fuels ,especially for those with glucose Solution.Besides,The fuel consumption of the emulsified fuels s are less than that of pure diesel and the economy characteristic from diesel engine is better.

Abstract: The "Air Resource Co-benefits (ARCoB) Model" was developed in this study to integrated the health benefits from the reduction of criteria pollutants (the averted loss of life expectancy and annual medical expenditure) and the ecological benefits from the reduction of greenhouse gases (GHGs) (the averted carbon tax) from the promotion of the alternative fuel vehicles currently on the market. By questionnaire survey, the consumer preferences and willingness to pay for the alternative fuel vehicles in Taipei were analyzed. From cost-benefit analysis, the amount of money would be appropriate for government subsidy and reduction of the manufacturing cost for alternative fuel vehicles were suggested for the policy makers and automobile enterprises in this study. It could be a reliable reference for the subsidies policy.

Abstract: This paper describes current auto industry's advanced low-carbon technologies at home and abroad, including engine emission reduction technologies, efficient transmission and drive technologies, alternative energy technologies and electric energy-saving technologies. By comparing these technologies, we can discovery key low-carbon technologies of automobile needed to focus on. China's automotive technological accumulation is much less than advanced countries. Not only free technical competition between the domestic auto companies is demanded, joint development is also needed. Automobile enterprises should cooperate in innovation to improve the country's overall innovation in the automotive industry level.

Abstract: Evaluating the possible impact on power system of a large number of electric vehicles (EVs) is becoming of great interest. With the development of V2G technology, electric vehicles constitute a significant power reserve. In addition, batteries in electric vehicles may be used to provide storage capability for energy produced by renewable sources and to supply auxiliary services to the grid. The paper presents the preliminary results of an on-going project aimed at evaluating the impact of electric vehicles on power system. The simulation results shows significant benefits of V2G on the daily load profiles and network planning. Hypotheses such as battery size, number of users, load profiles without and with different EV penetration are presented for successive scenarios set-up and simulations.

Abstract: The objective of study on the interactive coordinated control system (ICCS) is to meet the demand of V2G (Vehicle-to-grid) application. The interactive manners and contents of V2G are analyzed. And the requirements of the ICCS are proposed from several aspects, including functionality, interactive information and interactive terminal. The research may provide guidance for the two-way power and information interaction of future large-scale V2G applications.