本文選題：大功率整流裝置　切入點：總線　出處：《北京化工大學》2015年碩士論文　論文類型：學位論文

【摘要】：在化工行業(yè)廣泛使用大功率電解電源,根據(jù)生產(chǎn)工藝要求大功率整流裝置輸出的電流從幾KA到幾十KA不等,如果電流產(chǎn)生大的波動對供電系統(tǒng)和周圍的電子設備將是災難性的。因此,大功率整流電源對控制系統(tǒng)提出了很高要求。隨著投資規(guī)模的不斷增加,一個化工企業(yè)從原來的幾臺整流裝置發(fā)展到十幾臺甚至幾十臺整流裝置。在一個供電系統(tǒng)下有十幾臺整流器,這么大的用電功率,一旦某臺整流機組電流出現(xiàn)大的波動或者故障,如果監(jiān)控系統(tǒng)不能迅速做出反應,將會造成一個供電系統(tǒng)下的十幾臺整流機組不能穩(wěn)定運行,將直接影響到企業(yè)的生產(chǎn)和設備的安全。在一個供電系統(tǒng)下的多臺整流機組,雖然各自獨立運行,但是通過電網(wǎng),各個整流機組之間又存在著某種耦合關(guān)系。因此,單機組的整流控制器是整個裝置中重要環(huán)節(jié),而各個機組之間的協(xié)調(diào)也是必不可少的。為了及時獲取各個整流機組的信息,我們采用了總線型網(wǎng)絡將各個整流機組的數(shù)字控制器連接起來,可以實時可靠的將整流機組的信息傳送到上位計算機,這樣網(wǎng)絡傳輸速度和可靠性就顯得十分重要,現(xiàn)場總線的選擇也是至關(guān)重要。大功率晶閘管整流控制技術(shù)發(fā)展的趨勢必定是網(wǎng)絡化、智能化和綜合化的方向。單臺整流機組的控制器一定有高速網(wǎng)絡作為必備條件,廣泛采用DSP等高速處理機,多臺整流機組則采用分布式計算機控制系統(tǒng),乃至與工藝DCS系統(tǒng)連網(wǎng),構(gòu)成一個廣泛的信息平臺。
[Abstract]:High power electrolytic power supply is widely used in chemical industry. According to the requirements of production process, the output current of high-power rectifier device ranges from several Ka to several tens Ka. If the large current fluctuation is catastrophic for the power supply system and the surrounding electronic equipment. Therefore, the high power rectifier power supply has a high demand on the control system. A chemical enterprise has developed from a few original rectifiers to a dozen or even dozens of rectifiers. Under a power supply system, there are more than a dozen rectifiers, which has such a large power consumption. Once a rectifier has a large current fluctuation or failure, if the monitoring system fails to react quickly, it will result in a dozen rectifier units under a power supply system that cannot operate stably. It will directly affect the production and equipment safety of the enterprise. Many rectifier units under one power supply system operate independently, but through the power network, there is a certain coupling relationship between the rectifier units. The rectifier controller of the single unit is an important link in the whole device, and the coordination among the units is also essential. In order to obtain the information of each rectifier unit in time, We use the bus network to connect the digital controllers of each rectifier unit, which can transmit the information of the rectifier unit to the upper computer in real time, so the transmission speed and reliability of the network is very important. The choice of fieldbus is also very important. The development trend of high power thyristor rectifier control technology must be the direction of network, intelligence and integration. The controller of single rectifier must have high speed network as the necessary condition. High speed processors such as DSP are widely used, and many rectifier units use distributed computer control system, and even connect with process DCS system to form a wide information platform.
【學位授予單位】：北京化工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ083.1;TP273

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