【正文】
. 畢業(yè)設(shè)計說明書摘要末另起一行,列出設(shè)計的關(guān)鍵詞35個,詞條間以分號相隔。樣 例AbstractWind Turbine directly drives threephase permanent magnetic synchronous generator togenerate electricity in existing mallscale wind power generation system. Then ncontrolled bridge changes the threephase AC into DC which is used to charge the battery. The inverter turns DC from the battery into AC which is needed by load. The main problem in the existing system is that maximum power control is separate from charging and discharging control. A power electronic interface between rectifier and battery is designed to improve the running performance of current smallscale wind power eneration system and solve the problems to a certain extent that available system has. The power electronic interface is posed of two modules. The first module is used for load power control .According to the relationship between wind energy and load power,it adjusts the power to automatically match or track load power point. The second one is the charging and discharging control module. The module is used to charge the battery correctly according to the charge curve.A charge circuit is designed to rightly charge the battery when the output voltage of the Wind Power Generator is changed greatly.Keywords:wind power generation。 power point tracking。2. 如果畢業(yè)設(shè)計說明書中插圖、插表較多,可分別列出清單置于目錄之后。樣 例引 言經(jīng)濟全球化與人口的不斷增長,能源需求日益增加,人類正面臨著能源利用和環(huán)境保護兩方面的壓力。在過去20 年中,全世界能源消耗增長了50%,到2020 年全球能源消耗還將增長50%100%,由此所造成的溫室效應(yīng)氣體排放將會增加45%90%,從而帶來災(zāi)難性后果。人類正在努力尋求清潔、高效、可以再生的能源來代替對石油、煤炭等常規(guī)能源的依賴。開發(fā)利用可再生能源成為世界能源可持續(xù)發(fā)展戰(zhàn)略的重要組成部分,成為大多數(shù)發(fā)達國家和部分發(fā)展中國家21 世紀能源發(fā)展戰(zhàn)略的基本選擇。樣 例第一章 DCDC 斬波器本文中用到的電力電子接口由DCDC 斬波器組成,所以在本章對DCDC 斬波器做簡單介紹以便于理解本文的后續(xù)內(nèi)容。開關(guān)型功率斬波器(SwitchedMode Power Converter)是以功率半導體開關(guān)器件為核心的高頻電子電路。 Buck 型斬波器Buck型斬波器的主電路如圖22所示,因為其輸出電壓平均值U0總是小于或等于輸入電壓,因此它是一種降壓斬波電路?!f明:1. 畢業(yè)設(shè)計說明書正文字數(shù)