本文選題：GPS + 庫(kù)容��； 參考：《長(zhǎng)安大學(xué)》2014年碩士論文

【摘要】：水位-庫(kù)容-庫(kù)水面積關(guān)系曲線和數(shù)表是進(jìn)行水電站運(yùn)行調(diào)度的重要依據(jù)，其準(zhǔn)確性與否直接影響水庫(kù)防洪、大壩與發(fā)電機(jī)組安全運(yùn)營(yíng)決策；水電廠發(fā)電量及其產(chǎn)生的經(jīng)濟(jì)效益。雖然在水電站設(shè)計(jì)與竣工時(shí)對(duì)其作本底測(cè)量后有了初值，但隨著水庫(kù)淤積，該數(shù)據(jù)將不斷地產(chǎn)生變化。故定期對(duì)水庫(kù)進(jìn)行庫(kù)容與淤積測(cè)量并與之前歷次測(cè)量數(shù)據(jù)進(jìn)行對(duì)比，求出新的水位-庫(kù)容-庫(kù)水面積關(guān)系曲線及庫(kù)區(qū)淤積量是保證水電站安全運(yùn)營(yíng)和發(fā)揮最佳經(jīng)濟(jì)效益的重要基礎(chǔ)。 作者以安康水電站為對(duì)象，研究采用GPS實(shí)時(shí)動(dòng)態(tài)定位技術(shù)與超聲測(cè)深儀在導(dǎo)航軟件控制下進(jìn)行系統(tǒng)集成，測(cè)量庫(kù)容與庫(kù)區(qū)淤積的方法。針對(duì)本項(xiàng)目實(shí)際情況作了如下工作： 1.采用坐標(biāo)變換方法將歷次庫(kù)區(qū)測(cè)量所使用的不同坐標(biāo)系統(tǒng)資料及本次測(cè)量GPS定位使用的WGS84坐標(biāo)統(tǒng)一到西安80坐標(biāo)系下，，并在導(dǎo)航軟件中使用RTK GPS實(shí)時(shí)定位功能，使測(cè)量船沿歷次測(cè)量斷面線行走。從而使得各次測(cè)量的斷面數(shù)據(jù)具有可對(duì)比性。 2.采用高程擬合方法將WGS84的大地高擬合至庫(kù)區(qū)調(diào)度使用的吳淞口高程系統(tǒng)，并以此作為庫(kù)容與庫(kù)區(qū)淤積測(cè)量的高程系統(tǒng)。 3.采用分段水位修正方法，在每日測(cè)量區(qū)域內(nèi)設(shè)立水尺觀測(cè)實(shí)時(shí)水位變化以修正測(cè)深斷面高程。 4.采用動(dòng)態(tài)初始化方法進(jìn)行ＲＴＫ ＧＰＳ定位測(cè)量。從而將ＧＰＳ測(cè)相偽距實(shí)時(shí)動(dòng)態(tài)定位作業(yè)模式用于測(cè)深點(diǎn)定位。使定位誤差由ＧＰＳ測(cè)碼偽距動(dòng)態(tài)定位模式的±０.１ｍ提高到±０.０５ｍ。減小了由于平面定位誤差引起的高程誤差。 5.以所設(shè)計(jì)測(cè)量方法進(jìn)行了安康水電站庫(kù)容與淤積測(cè)量并對(duì)計(jì)算的庫(kù)容進(jìn)行了精度分析，為使用本次庫(kù)測(cè)數(shù)據(jù)進(jìn)行庫(kù)區(qū)運(yùn)行調(diào)度提供了可靠的依據(jù)。
[Abstract]:The relation curve and number table between water level, reservoir capacity and water area are the important basis for the operation and operation of hydropower station. The accuracy of the curve directly affects the flood control of reservoir, the safety operation decision of dam and generator set. Hydroelectric power generation and its economic benefits. Although there are initial values after the design and completion of the hydropower station, the data will be changed continuously as the reservoir silts. Therefore, the reservoir capacity and siltation are regularly measured and compared with previous survey data. Finding out a new relation curve between water level, reservoir capacity and reservoir water area and silting amount in reservoir area is an important basis to ensure the safe operation of hydropower station and bring into play the best economic benefit. Taking Ankang Hydropower Station as an object, the author studies the method of system integration with GPS real-time dynamic positioning technology and ultrasonic sounder under the control of navigation software to measure reservoir capacity and siltation in the reservoir area. In response to the actual situation of the project, the following work has been done: 1. The coordinate transformation method is used to unify the data of different coordinate systems used in the previous reservoir area survey and the WGS84 coordinates used in the GPS positioning of this survey to Xi'an 80 coordinate system, and the RTK GPS real-time positioning function is used in the navigation software. Make the surveying ship walk along the lines of each survey section. Thus, the cross-section data of each measurement can be compared. 2. The height of WGS84 is fitted to the Wusong Kou elevation system which is used in the dispatching of the reservoir area by using the method of height fitting, and it is used as the elevation system for reservoir capacity and siltation measurement in the reservoir area. 3. In order to correct the elevation of bathymetric section, a water gauge is set up to observe the real time change of water level in the daily survey area by using the method of section water level correction. 4. The dynamic initialization method is used to measure the RTK GPS position. Thus, the real-time dynamic positioning mode of GPS phase pseudo-range is used for bathymetric point location. The positioning error is increased from 鹵0.1 m to 鹵0.05 m in the pseudo-range dynamic positioning mode of GPS code. The elevation error caused by the plane positioning error is reduced. 5. The reservoir capacity and siltation measurement of Ankang Hydropower Station are carried out with the designed survey method, and the accuracy of the calculated reservoir capacity is analyzed, which provides a reliable basis for the operation and dispatching of the reservoir area by using this data.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV145;TV221

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本文編號(hào)：1894689