【正文】 oelectric hybrid current transformer has a lot of obvious advantages over a traditional electromagnetic current transformer. It will definitely find more and more applications. There are active and passive about electronic current transformer. The active electronic current transformer adopts the sophisticated integrated optoelectronic technology and modern electronic technology. It has played a highreliability, highprecision and stabilization. It is one of the most practical in future research directions.On the basis of research and analysis principles of various current transformers, this paper eventually adopted the ADC activetype Optical Current Transformer. It mainly pleted data collection and processing of high voltage side, data munication between high and low voltage side and analog waveform restoration at low voltage side. CPLD/FPGA has character of high integration density, high speed, and high reliability. According superiorities of these devices, this paper use CPLD as the CPU of the high voltage side and FPGA as the CPU of the low voltage side,which simplified the design process of hardware circuit and effectively reduced risk of measured errors in the strong electromagnetic interference environment this paper describes the design of hardware circuit system of the high voltage part, high and low voltage side data asynchronous munication circuit realization in CPLD/FPGA, chip selection and the circuit implementation and debugging of the various parts. Finally it gives the overall system simulation, testing and hardware debugging。 經驗證該系統(tǒng)設計可以實現(xiàn)光電混合式電流互感器高壓側單元和數據通訊的預定功能。本文詳細介紹了高壓側硬件系統(tǒng)的電路設計，高壓側數據異步通訊電路在CPLD/FPGA中的實現(xiàn)，芯片的選擇以及各部分電路的設計實現(xiàn)與調試。完成從高壓側數據采集、數據處理、高低壓間光纖數據通訊直至低壓側數據恢復的研究和設計。電子式電流互感器分為有源、無源兩種類型，有源式電子電流互感器采用了先進的光電子技術和現(xiàn)代集成電子技術，發(fā)揮了高可靠、高精度、高穩(wěn)定等特點，是目前最具實用前景的研究方向之一。大連交通大學本科畢業(yè)論文論文題目：高壓系統(tǒng)電流檢測新技術的研究及電路設計作者：劉德華指導教師：付萬安 教授 單位：大連交通大學論文提交日期：摘要電流互感器是電力系統(tǒng)中用于繼電保護和電測量的重要設備，其精確度和可靠性對電力系統(tǒng)的安全、穩(wěn)定和經濟運行有著重要影響。光電式電流互感器和傳統(tǒng)的電磁式電流互感器相比有很多突出的優(yōu)點，必將得到廣泛的應用。在研究和分析了各種電流互感器的工作原理及優(yōu)缺點的基礎上，本文采用了有源型結構中ADC式光電電流互感器設計方案。鑒于CPLD/FPGA具有高集成度、高速度和高可靠性的特點，提出了高壓側以CPLD為控制核心、低壓側以FPGA為控制核心的整體設計方案，簡化了相應硬件電路的設計過程，且有效率低了系統(tǒng)在強電磁干擾下測量產生錯誤的風險。最后對整個系統(tǒng)進行了軟件的仿真測試與硬件調試，驗證系統(tǒng)的功能實現(xiàn)?？奢^好的滿足電力系統(tǒng)中數據處理的高速度、高數據量、復雜運算等要求，并具有結構簡單、方便修改的優(yōu)點，具有一定的研究價值。 verify the function of the system implementation. The test results have proven that the proposed system designed can perform the expected functionality of photoelectric current transformer at high voltage side and data munication between high and low voltage side. It can better meet the power system’s requirements in the highspeed data processing, large data quantity and plex operation. It also has merit of being simple in structure and easier for modification. It is worth for further investigation.目錄摘要Abstract第一章緒論第二章光電電流互感器高壓側電路的研究第三章光電電流互感器供能方案的研究第四章高壓側傳感器部分的理論及設計 A/D轉換器第五章傳輸部分的理論分析和設計、發(fā)送/接收及光纖連接器第6章 結論和成果參考文獻致謝 近年來，伴隨現(xiàn)代高壓、超高壓輸電網絡的建設，電力系統(tǒng)正朝著大容量、高壓大電流方向發(fā)展，這就對電流測量裝置提出了更高的要求。額定互感比近似等于二次側和一次側之間的匝數比Kk。3. 設備安裝、檢修不方便,維護工作量大。5. 除此以外,傳統(tǒng)的電磁式電流互感器還具有鐵磁共振、磁滯效應等不利于測量的因素。因此光纖式電流互感器應運而生，全光纖電流互感器的優(yōu)點在于其具絕緣無油，五SF6或其