【摘要】：變電站是電力系統(tǒng)的一個重要環(huán)節(jié),保障變電站中一次設(shè)備和二次設(shè)備的安全運行,關(guān)系到整個電網(wǎng)運行的可靠性及穩(wěn)定性。變電站環(huán)境是影響變電站設(shè)備工作狀態(tài)及工作性能的重要因素。目前變電站環(huán)境監(jiān)測存在監(jiān)測因子單一、信息化程度不高、人員工作強度大等問題,特別是對溫濕度的監(jiān)測還處于人工巡視記錄模式,不能實時監(jiān)測,易產(chǎn)生人為誤差,不能在溫濕度超限的第一時間發(fā)現(xiàn)異常,造成設(shè)備運行的安全隱患。本文結(jié)合計算機通信技術(shù)、自動化技術(shù)以及電子技術(shù),提出了一種基于安卓操作系統(tǒng)的變電站環(huán)境監(jiān)測系統(tǒng)。該系統(tǒng)由下位機硬件終端及上位機軟件組成,下位機以單片機為核心,具有溫濕度檢測、顯示、判斷、與上位機通信等功能;上位機軟件是在PC機上搭建安卓開發(fā)環(huán)境,安裝SDK軟件,采用JAVA語言開發(fā)編寫APP應(yīng)用程序。該APP軟件具有實時顯示變電站溫濕度參數(shù)、下位機控制、參數(shù)設(shè)置等功能。根據(jù)所設(shè)計的變電站環(huán)境監(jiān)測系統(tǒng)方案,完成了上位機及下位機的設(shè)計及樣機制作,并進行了下位機傳感器性能測試、控制性能測試以及系統(tǒng)整體測試。針對測試過程中發(fā)現(xiàn)的傳感器測量數(shù)據(jù)誤差較大問題,通過將中值濾波引入到程序設(shè)計中提高測量精度,改進后的測量數(shù)據(jù)顯示溫度誤差最小為0 ℃,最大為0.4 ℃;濕度測量誤差最小為0 RH%,最大為3RH%。最后將上位機軟件安裝在智能手機上,進行了系統(tǒng)整體測試。測試結(jié)果表明,該系統(tǒng)數(shù)據(jù)測量較為準確,APP軟件顯示正常,數(shù)據(jù)異常時APP報警正常,控制性能良好。所研究開發(fā)的變電站環(huán)境監(jiān)測裝置,具有一定的工程應(yīng)用價值。
[Abstract]:Substation is an important link in power system. It is related to the reliability and stability of the whole power network to ensure the safe operation of the primary and secondary equipments in the substation. Substation environment is an important factor affecting the working state and performance of substation equipment. At present, there are some problems in substation environmental monitoring, such as single monitoring factor, low information level, large working intensity, etc. Especially, the monitoring of temperature and humidity is still in the manual inspection record mode, which can not be monitored in real time, and it is easy to produce human error. Can not be found in the temperature and humidity beyond the first time abnormal, resulting in equipment operation safety risks. A substation environment monitoring system based on Android operating system is presented in this paper, which combines computer communication technology, automation technology and electronic technology. The system is composed of the hardware terminal of the lower computer and the software of the upper computer. The lower computer takes the single chip computer as the core and has the functions of temperature and humidity detection, display, judgment, communication with the upper computer, etc. The upper computer software is to build the Android development environment on the PC computer, install the SDK software, and use JAVA language to develop and write the APP application program. The APP software can display the temperature and humidity parameters of substation, control the lower computer and set the parameters in real time. According to the design of substation environment monitoring system, the design and prototype of upper computer and lower computer are completed, and the performance test, control performance test and whole system test of lower computer sensor are carried out. Aiming at the large error of sensor measurement data found in the testing process, the median filter is introduced into the program to improve the measurement accuracy. The minimum temperature error of the improved measurement data is 0 鈩，

本文編號：2298777