【正文】 nty s and seventy s, with the popularity of variable frequency speed regulating device, power inverter with thyristor, giant transistor (GTR) power and gate turn off thyristor (GT0) was cast in the role of power electronics device. Similar applications include high voltage dc output, static reactive power dynamic pensation etc. At this time of the power electronic technology has been able to realize rectifier and inverter, but working frequency is low, limited in the lowfrequency range. 變頻器時(shí)代 inverter era進(jìn)入八十年代,大規(guī)模和超大規(guī)模集成電路技術(shù)的迅猛發(fā)展,為現(xiàn)代電力電子技術(shù)的發(fā)展奠定了基礎(chǔ)。變頻調(diào)速的關(guān)鍵技術(shù)是將直流電逆變?yōu)?~100Hz的交流電。The development direction of modern power electronic technology, is given priority to with low frequency technology deal with the problem of traditional power electronics, to give priority to with high frequency technology deal with the problem of modern power electronics. Power electronic technology began in the early 50 s, 60 s of the silicon rectifier device, its development has experienced the era of era of rectifier and inverter and converter, and promoted the power electronic technology in many new areas of application. Developed in the late eighty s and early ninety s, represented by power MOSFET and IGBT and high frequency, high voltage and large current of power semiconductor pound device, show that traditional power electronic technology has entered the era of modern power electronics. 整流器時(shí)代 the age of rectifier大功率的工業(yè)用電由工頻(50Hz)交流發(fā)電機(jī)提供,但是大約20%的電能是以直流形式消費(fèi)的,其中最典型的是電解(有色金屬和化工原料需要直流電解)、牽引(電氣機(jī)車、電傳動(dòng)的內(nèi)燃機(jī)車、地鐵機(jī)車、城市無軌電車等)和直流傳動(dòng)(軋鋼、造紙等)三大領(lǐng)域。在不遠(yuǎn)的將來,電力電子技術(shù)將使電源技術(shù)更加成熟、經(jīng) 濟(jì)、實(shí)用,實(shí)現(xiàn)高效率和高品質(zhì)用電相結(jié)合。探析現(xiàn)代電力電子及電源技術(shù)的發(fā)展現(xiàn)代電源技術(shù)是應(yīng)用電力電子半導(dǎo)體器件,綜合自動(dòng)控制、計(jì)算機(jī)(微處理器)技術(shù)和電磁技術(shù)的多學(xué)科邊緣交又技術(shù)。Current, power electronics as an energysaving, section, automation, intelligent, electromechanical integration, the basis of the application technology is moving in highfrequency, modular hardware structure and the direction of green product performance. In the near future, power electronic technology will enable power technology more mature, economic, practical, achieve high efficiency and high quality.1. 電力電子技術(shù)的發(fā)展1. The development of power electronics technology現(xiàn)代電力電子技術(shù)的發(fā)展方向,是從以低頻技術(shù)處理問題為主的傳統(tǒng)電力電子學(xué),向以高頻技術(shù)處理問題為主的現(xiàn)代電力電子學(xué)方向轉(zhuǎn)變。大功率硅整流器能夠高效率地把工頻交流電轉(zhuǎn)變?yōu)橹绷麟?因此在六十年代和七十年代,大功率硅整流管和晶閘管的開發(fā)與應(yīng)用得以很大發(fā)展。在七十年代到八十年代,隨著變頻調(diào)速裝置的普及,大功率逆變用的晶閘管、巨型功率晶體管(GTR)和門極可關(guān)斷晶閘管(GT0)成為當(dāng)時(shí)電力電子器件的主角。將集成電路技術(shù)的精細(xì)加工技術(shù)和高壓大電流技術(shù)有機(jī)結(jié)合,出現(xiàn)了一批全新的全控型功率器件、首先是功率M0SFET的問世,導(dǎo)致了中小功率電源向高頻化發(fā)展,而后絕緣門極雙極晶體管(IGBT)的出現(xiàn),又為大中型功率電源向高頻發(fā)展帶來機(jī)遇。Into the eighty s, large scale and very large scale integrated circuit technology rapid development, laid the groundwork for the development of modern power electronic technology. Fine processing technology and integrated circuit technology will bine high voltage large current technology, appeared a batch of new type all control the power device, the first is the advent of power M0SFET, led to the small and mediumsized power sources to the development of high frequency, and insulated gate bipolar transistor (IGBT), and high frequency development opportunity for the large and mediumsized power sources. Thereafter, MOSFET and IGBT of power electronics is the traditional to the modern power electronic transformation. According to statistics, by the end of 1995, power M0SFET and GTR in power semiconductor devices on the market has reached the point of vie, and replace GTR with IGBT have been established in the field of power electronics. The development of the new device not only provides a high frequency ac motor frequency control of motor speed, make its function more perfect and reliable, and makes the development of modern electronic technology constantly to high frequency change, for efficient energy saving, material saving of electrical equipment to achieve small, lightweight, mechanical and electrical integration and intelligentization provides important technical foundation.2. 現(xiàn)代電力電子的應(yīng)用領(lǐng)域2. The application field of modern power electronics 計(jì)算機(jī)高效率綠色電源 puter efficient green power supply高速發(fā)展的計(jì)算機(jī)技術(shù)帶領(lǐng)人類進(jìn)入了信息社會(huì),同時(shí)也促進(jìn)了電源技術(shù)的迅速發(fā)展。綠色電腦泛指對(duì)環(huán)境無害的個(gè)人電腦和相關(guān)產(chǎn)品，綠色電源系指與綠色電腦相關(guān)的高效省電電源,根據(jù)美國(guó)環(huán)境保護(hù)署l992年6月17日“能源之星計(jì)劃規(guī)定,桌上型個(gè)人電腦或相關(guān)的外圍設(shè)備,在睡眠狀態(tài)下的耗電量若小于30瓦,就符合綠色電腦的要求,提高電源效率是降低電源消耗的根本途徑。在通信領(lǐng)域中,通常將整流器稱為一次電源,而將直流直流(DC/DC)變換器稱為二次電源。Telemunication industry has been heavily promoted by the rapid development of the development of munication power supply. Highfrequency miniaturization of switch power supply and its technology has bee the mainstream of modern munication power supply system. In the field of munication, often will be called a rectifier power supply, and DC DC (DC/DC) converter referred to as the secondary power supply. Is the role of a power singlephase or threephase ac power grid transformation into a nominal value of 48 v dc power supply. In SPC exchange with a power supply at present, the traditional phased type regulated power supply has replaced by the high frequency switching power supply, highfrequency switching power supply (also known as switch mode rectifier SMR) by MOSFET and IGBT high frequency work, general control switch frequency in 50100 KHZ range, to achieve high efficiency and miniaturization. Expands unceasingly in recent years, the power switch rectifier capacity, capacity of f from 48 v / A 48 v / 20 A, extended to the 48 v / 200 A, 48 v / 400 A.因通信設(shè)備中所用集成電路的種類繁多,其電源電壓也各不相同,在通信供電系統(tǒng)中采用高功率密度的高頻DCDC隔離電源模塊,從中間母線電壓(一般為48V直流)變換成所需的各種直流電壓,這樣可大大減小損耗、方便維護(hù),且安裝、增加非常方便。用直流斬波器代替變阻器可節(jié)約電能(20~30)%。Communication power supply in the secondary power supply DC/DC converter has been mercialized, modules using high frequency PWM technology, switching frequency about 500 KHZ, the power density of 5 w to 20 w/in3. With the development of large scale integrated circuit, power supply module to realize miniaturization, thus will improve the switch frequency and using the new circuit topology, there are some of the pany development and production with zero current switch and zero voltage switching technology of secondary power supply module, power density is greatly improved.