本文選題：配電自動(dòng)化 + Windows��； 參考：《哈爾濱工程大學(xué)》2014年碩士論文

【摘要】：隨著經(jīng)濟(jì)的快速發(fā)展,無論在工業(yè)還是民用方面,對(duì)于電能的需求量與日俱增,用戶對(duì)供電可靠性的要求也越來越高。目前我國已初步完成了高、中壓配電系統(tǒng)的自動(dòng)化,而對(duì)10kV以下,尤其是400V以下低壓配電終端設(shè)備的維護(hù)大多采用人工例行檢查的方式,導(dǎo)致配電線路出現(xiàn)的問題往往不能在第一時(shí)間被發(fā)現(xiàn)。此外,隨著國家電網(wǎng)的建設(shè),配電網(wǎng)的結(jié)構(gòu)也日益龐大,這給維護(hù)人員對(duì)故障位置的判斷和對(duì)故障原因的排查造成了極大不便,經(jīng)常出現(xiàn)漏檢、錯(cuò)檢的情況。這種被動(dòng)、低效率的維護(hù)方式已經(jīng)不符合電網(wǎng)智能化的大趨勢(shì),成為一個(gè)亟待改進(jìn)的環(huán)節(jié)。本文結(jié)合當(dāng)前國內(nèi)外配電自動(dòng)化的發(fā)展現(xiàn)狀和未來趨勢(shì),以及我國低壓配電終端在維護(hù)方式上的弊端,通過對(duì)低壓配電柜對(duì)于遠(yuǎn)程監(jiān)控功能需求的分析,設(shè)計(jì)了一套以ARM11核嵌入式開發(fā)板OK6410A為硬件平臺(tái),基于嵌入式操作系統(tǒng)Windows CE的低壓配電智能監(jiān)控終端。該終端利用SA9904A三相電能計(jì)量芯片實(shí)現(xiàn)了對(duì)配電柜內(nèi)的電壓、電流、有功功率、無功功率、功率因數(shù)及工作頻率等電能質(zhì)量重要指標(biāo)的高精度測(cè)量,通過以太網(wǎng)模塊的DM9000AE控制配電柜與遠(yuǎn)方監(jiān)控中心主機(jī)的雙向通信:將配電柜內(nèi)各模擬量的實(shí)時(shí)運(yùn)行情況上報(bào)給監(jiān)控中心,同時(shí)監(jiān)控中心能夠?qū)ξ⑻幚砥飨逻_(dá)命令控制配電柜內(nèi)開關(guān)的分合閘動(dòng)作。另外,本文通過對(duì)NMEA-0183協(xié)議和PDU編碼的研究,分別設(shè)計(jì)了用于定位和對(duì)時(shí)的GPS模塊和用于發(fā)送故障信息的GPRS模塊。當(dāng)配電保護(hù)開關(guān)發(fā)生投切動(dòng)作時(shí),該終端能夠通過GPRS模塊將由GPS模塊測(cè)定的故障發(fā)生的時(shí)間、位置和故障原因等內(nèi)容通過短信息的方式及時(shí)通知維護(hù)人員。通過對(duì)實(shí)驗(yàn)結(jié)果的分析證明,該配電終端達(dá)到了遙測(cè)、遙信、遙控的目標(biāo),有效減輕了維護(hù)人員的勞動(dòng)強(qiáng)度,節(jié)省了人力物力,具有良好的應(yīng)用價(jià)值。本文的主要內(nèi)容包括:首先,分析了實(shí)現(xiàn)配電自動(dòng)化的重要意義,對(duì)國內(nèi)外配電自動(dòng)化的發(fā)展情況進(jìn)行比較,說明了我國在低壓配電自動(dòng)化方面存在的問題,并針對(duì)這些問題制定了本文的主要工作內(nèi)容。其次,介紹了低壓配電監(jiān)控系統(tǒng)的層次結(jié)構(gòu),指明監(jiān)控終端在系統(tǒng)中所處的位置及功能。通過對(duì)監(jiān)控網(wǎng)絡(luò)通信方式、以太網(wǎng)協(xié)議、嵌入式系統(tǒng)以及模擬量采集方式的不同方案的分析和比較,同時(shí)結(jié)合具體工程項(xiàng)目需要,確定了本文設(shè)計(jì)的低壓配電監(jiān)控終端的總體結(jié)構(gòu)和各模塊之間的輸入輸出關(guān)系。接下來從監(jiān)控終端硬件組成的角度出發(fā)介紹了各模塊的功能實(shí)現(xiàn)原理和它們之間的通信方式。以此為依據(jù),結(jié)合Windows CE本身的體系結(jié)構(gòu)特點(diǎn),本文介紹了監(jiān)控終端功能的軟件實(shí)現(xiàn)過程,包括驅(qū)動(dòng)程序和應(yīng)用程序的設(shè)計(jì)。最后,對(duì)遙測(cè)結(jié)果的誤差進(jìn)行了修正,將監(jiān)控終端置于實(shí)際工作環(huán)境中進(jìn)行了聯(lián)機(jī)測(cè)試。通過對(duì)測(cè)試結(jié)果的分析,說明了本文設(shè)計(jì)的低壓配電監(jiān)控終端對(duì)于實(shí)現(xiàn)管控一體化,提高設(shè)備管理水平所起到的作用。同時(shí)也指出了監(jiān)控終端目前尚待解決的問題和未來的研究方向。
[Abstract]:With the rapid development of the economy, the demand for electrical energy is increasing in both industrial and civil aspects, and the demand for power supply reliability is becoming higher and higher. At present, the automation of high and medium voltage distribution systems has been completed initially in China, and most of the maintenance of low voltage distribution terminal equipment under 10kV, especially under 400V, is mostly adopted. The way of routine inspection leads to the problem that the distribution line often fails to be found in the first time. In addition, with the construction of the national grid, the structure of the distribution network is also increasingly large, which causes the maintenance personnel to judge the fault location and to check the cause of the failure. Dynamic, low efficiency maintenance mode has not been in line with the big trend of intelligent power grid, and becomes an urgent improvement. This paper combines the current development status and future trend of distribution automation at home and abroad, as well as the disadvantages of our low voltage distribution terminal in maintenance mode, through the analysis of the demand for remote monitoring and control function of the low-voltage distribution cabinet. A set of low-voltage distribution intelligent monitoring terminal based on the embedded operating system Windows CE is designed, which uses the ARM11 nuclear embedded development board OK6410A as the hardware platform. The terminal uses the SA9904A three-phase power metering chip to realize the voltage, current, active power, reactive power, power factor and working frequency of the power distribution cabinet. In order to measure the high precision of the index, the two-way communication between the distribution cabinet and the remote monitoring center is controlled by the DM9000AE of the Ethernet module. The real-time operation of the analog quantities in the distribution cabinet is reported to the monitoring center, and the monitoring center can command the microprocessor to control the switching operation of the switch in the distribution cabinet. After the study of the NMEA-0183 protocol and the PDU coding, the GPS module used for location and timing and the GPRS module for sending fault information are designed respectively. When the switching action of the distribution protection switch, the terminal can pass the short information through the GPRS module to the time, position and cause of the fault detected by the GPS module. Through the analysis of the experimental results, it is proved that the distribution terminal has reached the target of telemetry, telecontrol and remote control. It effectively reduces the labor intensity of the maintenance personnel, saves the manpower and material resources, and has good application value. The main contents of this paper include: first, the importance of realizing distribution automation is analyzed. The development of distribution automation at home and abroad is compared, and the existing problems in low voltage distribution automation in China are explained, and the main contents of this paper are formulated in view of these problems. Secondly, the hierarchical structure of the low voltage distribution monitoring system is introduced, and the position and function of the terminal in the system are pointed out. The network communication mode, Ethernet protocol, embedded system and analog acquisition mode are analyzed and compared. At the same time, the overall structure of the low-voltage distribution monitoring terminal and the input and output relationship between the modules are determined according to the needs of the specific project, and the next from the view of the hardware of the monitoring terminal. This paper introduces the function realization principle of each module and the communication mode between them. On the basis of this, combining with the architecture features of Windows CE itself, this paper introduces the software implementation process of monitoring terminal function, including the design of the driver and application program. Finally, the error of the tele test results is corrected and the monitoring terminal is set up. The test results are analyzed in the actual working environment. Through the analysis of the test results, the function of the low-voltage distribution monitoring terminal designed in this paper on the integration of control and control and the improvement of the level of the equipment management is illustrated. At the same time, the problems that the monitoring terminal is still to be solved and the future research direction are also pointed out.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM726.2;TP277

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本文編號(hào)：2004126