【正文】 is very important, since most of the customers are served from distribution lines and since the distribution system is frequently more exposed to damage than any other part of the system. reviewed our country electrical power system relay protection technological development process, has outlined the microputer relay protection technology achievement, proposed the future relay protection technological development tendency will be: Computerizes, worked, protects, the control, the survey, the data munication integration and the artificial intellectualization. Key word： protection relay relay protection present situation development， relay protections future development 1 the principle and development present situation of relay protection The electrical power system rapid development to the relay protection proposed unceasingly the new request, the electronic technology, puter technology and the munication rapid development unceasingly has poured into the new vigor for the relay protection technology development, therefore, the relay protection technology is advantageous, has pleted the development 4 historical stage in more than 40 years time. After the founding of the nation, our country relay protection discipline, the relay protection design, the relay manufacture industry and the relay protection technical team grows out of nothing, has passed through the path in about 10 years which advanced countries half century passes through. The 5039。s integrated circuit pro 6 tection,substitutes for the transistor protection gradually. The development, the production, the application the integrated circuit protects which to the beginning of the 9039。s electric power system protection technology has undergone four times. With the rapid development of power systems and puter technology, munications technology, relay technology faces the further development of the trend. Domestic and international trends in the development of protection technologies: puterization, working, protection, control, measurement, data munications integration and artificial intelligence, which made protection workers difficult task, but also opened up the activities of vast. 。s , the institutions of higher learning and the scientific research courtyard institute forerunner39。s establishment. The acheng relay factory introduction has digested at that time the overseas advanced relay manufacture technology, has established our country relay manufacturing industry. Thus our country has pleted the relay protection research, the design, the manufacture, the movement and the teaching plete system in the 6039。將這些人 工智能方法適當結(jié)合可使求解速度更快。在采用 ota 和 otv 的情況下，保 護裝置應(yīng)放在距 ota 和 otv最近的地方，亦即應(yīng)放在被保護設(shè)備附近。 、控制、測量、數(shù)據(jù)通信一體化 在實現(xiàn)繼電保護的計算機化和網(wǎng)絡(luò)化的條件下，保護裝置實際上就是一臺高性能、多功能的計算機，是整個電力系統(tǒng)計算機網(wǎng)絡(luò)上的一個智能終端。對自適應(yīng)保護原理的研究已經(jīng)過很長的時間，也取得了一定的成果，但要真正實現(xiàn)保護對系統(tǒng)運行方式和故障狀態(tài)的自適應(yīng)，必須獲得更多的系統(tǒng)運行 和故障信息，只有實現(xiàn)保護的計算機網(wǎng)絡(luò)化，才能做到這一點。這主要是由于缺乏強有力的數(shù)據(jù)通信手段。(2)尺寸和結(jié)構(gòu)與目前的微機保護裝置相似，工藝精良、防震、防過熱、防電磁干擾能力強，可運行于非常惡劣的工作環(huán)境，成本可接受。 cpu的寄存器、數(shù)據(jù)總線、地址總線都是 32位的，具有存儲器管理功能、存儲器保護功能和任務(wù)轉(zhuǎn)換功能，并將高速緩存 (cache)和浮點數(shù)部件都集成在 cpu內(nèi)。 二 繼電保護的發(fā)展 繼電保護技術(shù)未來趨勢是向計算機化，網(wǎng)絡(luò)化，智能化，保護、控制、測量和數(shù)據(jù)通信一體化發(fā)展。華中理工大學(xué)、東南大學(xué)、華北電力學(xué)院、西安交通大學(xué)、天津大學(xué)、上海交通大學(xué)、重慶大學(xué)和南京電力自動化研究院都相繼研制了不同原理、不同型式的微機保護裝置。 自 50 年代末，晶體管繼電保護已在開始研究。 畢 業(yè) 設(shè) 計 (論文 ) 外 文 翻 譯 外文題目： Protection Relay 中文題目： 繼電保護 學(xué) 院 名 稱： 電子與信息工程學(xué)院 專 業(yè)： 電氣工程及其自動化 班 級： 電氣 082 姓 名： 胡森斌 學(xué) 號 08401170229 指 導(dǎo) 教 師： 邱雪娜 職 稱 講師 定稿日期： 2021 年 12 月 28 日 1 繼電保護 摘要 ： 繼電 保護非常重要，因為大部分的用戶，是從分布線和分配制度以來，比任何其他部分 的 系統(tǒng)更容易受到破壞 。這是機電式繼電保護繁榮的時代，為我國繼電保護技術(shù)的發(fā)展奠定了堅實基礎(chǔ)。 我國從 70 年代末即已開始了計算機繼電保護的研究，高等院校和科研院所起著先導(dǎo)的作用?？梢哉f從 90年代開始我國繼電保護技術(shù)已進入了微機保護的時代。采用 32位微機芯片并非只著眼于精度，因為精度受 a/d轉(zhuǎn)換器分辨率的限 制，超過 16位時在轉(zhuǎn)換速度和成本方面都是難以接受的；更重要的是 32位微機芯片具有很高的集成度，很高的工作頻率和計算速度，很大的尋址空間，豐富的指令系統(tǒng)和較多的輸入輸出口。這種裝置的優(yōu)點有： (1)具有 486pc機的全部功能，能滿足對當 前和未來微機保護的各種功能要求。繼電保護的作用也只限于切除故障元件，縮小事故影響范圍。繼電保護裝置能夠得到的系統(tǒng)故障信息愈多，則對故障性質(zhì)、故障位置的判斷和故障距離的檢測愈準確。 由上述可知，微機保護裝置網(wǎng)絡(luò)化可大大提高保護性能和可靠性，這是微機保護發(fā)展的必然趨勢?，F(xiàn)在光電流互感器 (ota)和光電壓互感器 (otv)已在研究試驗階段，將來必然在電力系統(tǒng)中得到應(yīng)用。其它如遺傳算法、進化規(guī)劃等也都有其獨特的求解復(fù)雜問題的能力。s, our country engineers and technicians creatively absorption, the digestion, have grasped the overseas advanced relay protection equipment performance and the movement technology , pleted to have the deep relay protection theory attainments and the rich movement experience relay protection technical team, and grew the instruction function to the national relay protection technical team39。s still were in the dominant position, this was the integrated circuit protection time. The integrated electricity road work frequency conversion quantity direction develops which in this aspect Nanjing electric power automation research institute high frequency protected the vital role , the Tianjin University and the Nanjing electric power automation plant cooperation development integrated circuit phase voltage pensated the type direction high frequency protection also moves in multi strip 220kv and on the 500kv line. Our country namely started the puter relay protection research from the end of the 70