本文介紹了CAN總線的特性，并吸取當(dāng)今先進(jìn)的電站設(shè)計(jì)思想，在分析相關(guān)技術(shù)文獻(xiàn)、資料的基礎(chǔ)上，利用先進(jìn)的嵌入式控制技術(shù)，PLC技術(shù)及現(xiàn)場(chǎng)總線通信技術(shù)等進(jìn)行系統(tǒng)設(shè)計(jì)，給出了一種基于CAN總線的水電站自動(dòng)化監(jiān)控系統(tǒng)。與傳統(tǒng)的水電站自動(dòng)化監(jiān)控系統(tǒng)相比，該方法改傳統(tǒng)方法中將現(xiàn)場(chǎng)綜合電量裝置、保護(hù)裝置及溫度巡檢裝置通過(guò)RS485總線接到工控機(jī)上為將這些裝置與PCC相連，通過(guò)PCC聯(lián)到上位監(jiān)控系統(tǒng)，使得整個(gè)現(xiàn)地單元自成一個(gè)獨(dú)立的系統(tǒng)層次。增加了系統(tǒng)的穩(wěn)定性和可靠性。避免了系統(tǒng)數(shù)據(jù)的丟失，同時(shí)簡(jiǎn)化了系統(tǒng)的結(jié)構(gòu)，節(jié)約了系統(tǒng)硬件成本，更加利于資金不足的地區(qū)自建小型水電站。
關(guān)鍵詞： CAN PLC PCC 現(xiàn)場(chǎng)總線 水電站自動(dòng)化
Abstract: A hydraulic power plant automatic monitor system based on CAN_ us is proposed in this paper. The system connects the field comprehensive electric parameter device, the protection device and the temperature-inspection device with PCC, rather than through RS485 with the industrial control computer. This approach makes the whole field unit integrated a self-governed system hierarchy, improves the stability and reliability of the system ,avoids the lose of system data, simplifies the structure of the system, and saves the cost of hardwares.
Keywords: CAN PLC PCC Field bus Hydraulic Power Plant Automation