變電所自動(dòng)化技術(shù)與無人值班論文-文庫吧
2025-06-05 05:37 本頁面
【正文】 as the far field environment monitoring of substation, guard against theft, fireproof prompt detection and alarm functions, which is currently a conventional automatic system still cannot achieve. Therefore conducted the unattended substation image remote monitoring system of research and development work. As a new image monitoring technology means, in the late 1990s began applied to power system, the application of the technology for the work safety of electricity provides an effective auxiliary function, it will appear in a sense of power system to promote the new management mode reform progress. This system development success and put into operation for the unattended substation integrated automation added a important function , remote viewing function.1 設(shè)計(jì)原則及系統(tǒng)結(jié)構(gòu) 設(shè)計(jì)原則 目前，監(jiān)控系統(tǒng)現(xiàn)有的產(chǎn)品大多為集中式的樓宇或工業(yè)生產(chǎn)的圖像監(jiān)控設(shè)備，其監(jiān)控地理區(qū)域小，監(jiān)視點(diǎn)相對(duì)集中，視頻信號(hào)的傳輸距離在300m以下，因而可采用視頻電纜進(jìn)行模擬方式的傳輸，而且對(duì)視頻信號(hào)本身不需加任何處理。而變電所則正好相反，不僅分布較散，而且距離較遠(yuǎn)，一般在幾公里至幾十公里以外 ，已遠(yuǎn)遠(yuǎn)超過了視頻電纜的傳輸能力，采用模擬方式傳輸視頻信號(hào)顯然是不現(xiàn)實(shí)的，因而必須首先將視頻信號(hào)數(shù)字化，然后再通過數(shù)字或模擬通訊網(wǎng)進(jìn)行傳輸． 在系統(tǒng)設(shè)計(jì)時(shí)，著重加強(qiáng)系統(tǒng)的安全性、可靠性，也考慮到經(jīng)濟(jì)合理性，主要按如下原則進(jìn)行設(shè)計(jì)：（1）實(shí)用性。即設(shè)計(jì)時(shí)重點(diǎn)考慮系統(tǒng)的實(shí)用性，注重系統(tǒng)的綜合能力和總體性能。（2）穩(wěn)定性、可靠性。在設(shè)備選材時(shí)，選用技術(shù)先進(jìn)、成熟、運(yùn)行穩(wěn)定可靠并在電力行業(yè)中應(yīng)用業(yè)績(jī)良好的設(shè)備作為系統(tǒng)的組件。（3）開放性。考慮到系統(tǒng)投資的長(zhǎng)期效益，設(shè)計(jì)與選型時(shí)注重系統(tǒng)的開放性，即圖像監(jiān)控系統(tǒng)中各產(chǎn)品必須符合國(guó)際標(biāo)準(zhǔn)、工
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