機(jī)械外文翻譯--世界電力機(jī)車的發(fā)展-文庫吧
2025-04-17 00:04 本頁面
【正文】 機(jī)車。 伴隨著世界潮流，誕生了新的“直 交”電力機(jī)車技術(shù)。從 20 世紀(jì) 70 年代末，我國一直在進(jìn)行中小型鐵路功率變換器的 研究。在地面上的高功率測試也在進(jìn)行中 ,直 交流電力機(jī)車研究也已取得初步成效。 發(fā)展我國電力機(jī)車始于 1958 年。在那個時候，鐵道部第三機(jī)車廠，即現(xiàn)在的株洲電力機(jī)車廠在協(xié)助湘潭電機(jī)采礦電力機(jī)車制造工廠的同時，設(shè)計(jì)和編制鐵路電力機(jī)車。 1958 年年初，該部機(jī)械工業(yè)部組織第一次訪問蘇聯(lián)考察。在那個時候，基本定型的觀念是：由于蘇聯(lián)使用 20 千伏單相交流系統(tǒng)Н 60 頻率電力機(jī)車，因此中方?jīng)Q定采取 25 千伏單相交流系統(tǒng)，并且頻率各不相同。 所以Н 60 電力機(jī)車是一個大膽的技術(shù)改造，這相當(dāng)于 78 個重大變化。 1958 年 12 月 28 日 ，我國第一臺電力機(jī)車研制成功的鐵路干線 ,命名“ Y16” ,機(jī)車持續(xù)功率 3410 千瓦，最高速度 100 公里 /小時。 到目前為止，我國干線電力機(jī)車已基本形成了 4,6,8 軸和 3200 千瓦， 6400千瓦和 4800 千瓦冪級數(shù)。 1999 年 5 月 26 日，我國的株洲電力機(jī)車廠生產(chǎn)了第一個速度超過 200 公里 DDJ1 子彈頭型電力機(jī)車，標(biāo)志著我國電力牽引已躋身于國際高速列車服務(wù)行列。 The Development of World Electric Lootive Electric lootive itself with the original motive accept catenary sent by the current as a source of energy, from lootive traction motor drive the wheels. With electric lootive power, thermal efficiency, fast, strong and reliable operation Guozainaili major advantages, but do not pollute the environment, and particularly applicable to the busy railway transportation and tunnels, the slope of the mountain railway. Electric lootive from the contact line access to electricity, catenary power supply current lootives are both DC and AC. The current system different, not with the electric lootive, can be divided into basically straightDC electric lootive, the TACDC electric lootive, the TACDirectAC electric lootive three. StraightDC electric lootive using DC power supply system, traction substation equipped with rectifier devices, it will bee a threephase AC DC, and then to access the Inter. Therefore, the electric lootive can be made online directly from the contact supply DC Series traction motor use, which simplifies the lootive equipment. DC system39。s weaknesses are catenary low voltage, typically l500V or 3000 V, the contact wire request is rough, it is necessary to consume a large amount of nonferrous metals, and increased construction investment. TAC DC electric lootive powered by AC system, most of the world39。s countries use the frequency (50Hz) exchange system, or 25 Hz lowfrequency munication system. In this supply system, traction substation will be changed to threephase alternating current frequency of 25 kV singlephase AC power industry after exposure to the Inter. But in the electric lootive used on the string is still DC motor (which is the biggest advantage motor speed as simple as changing motor terminal voltage, it should
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