基于Kalman濾波理論的供水管網(wǎng)漏失分析研究
發(fā)布時(shí)間：2019-03-31 08:01
【摘要】：我國(guó)當(dāng)前的水資源總量十分有限，迫切需要采取合理的節(jié)水與控漏措施來(lái)優(yōu)化水資源配置。對(duì)于供水行業(yè)而言，如何有效地對(duì)管網(wǎng)漏失進(jìn)行量化，降低供水管網(wǎng)的漏失量是一項(xiàng)亟待解決的重要任務(wù)。對(duì)如何量化供水管網(wǎng)漏失量進(jìn)行研究，具有十分重要的實(shí)際意義。 本文結(jié)合國(guó)際上常見(jiàn)的求解漏失量的水平衡分析法、夜間最小流量法和基于管網(wǎng)漏失量水力模型的分析方法，分別分析了三種方法的不足之處，且都不能精確的計(jì)算出供水管網(wǎng)漏失量，難以反映供水管網(wǎng)中漏失量的真實(shí)變化情況。 截止目前，，國(guó)際上沒(méi)有統(tǒng)一和精準(zhǔn)的方法來(lái)計(jì)算管網(wǎng)漏失量。本課題結(jié)合信息控制領(lǐng)域常用的Kalman濾波分析理論，構(gòu)建供水管網(wǎng)系統(tǒng)的狀態(tài)方程與觀測(cè)方程，提出一種新的方法，用于分析和計(jì)算管網(wǎng)中的漏失量。研究的主要內(nèi)容有： 1.通過(guò)管網(wǎng)漏失模擬實(shí)驗(yàn)，分析在不同水源個(gè)數(shù)、不同管網(wǎng)拓?fù)浣Y(jié)構(gòu)、不同漏點(diǎn)數(shù)的條件下管網(wǎng)漏失量變化情況。 2.采用Kalman濾波理論分析供水管網(wǎng)漏失量的可行性分析，構(gòu)建基于Kalman濾波理論的供水管網(wǎng)系統(tǒng)數(shù)學(xué)模型，并加以分析。 3.以實(shí)際管網(wǎng)工程為分析實(shí)例，將實(shí)驗(yàn)中構(gòu)建的供水管網(wǎng)系統(tǒng)數(shù)學(xué)模型應(yīng)用到管網(wǎng)工程實(shí)例中，分析漏失量的變化情況，結(jié)果表明采用Kalman濾波算法計(jì)算得出的管網(wǎng)漏失率約為13.36%，與通過(guò)水量審計(jì)得到的管網(wǎng)漏失率12.14%相比，二者之間僅相差1.22%，可認(rèn)為采用Kalman濾波算法分析管網(wǎng)漏失量是可行的。 本課題研究中，分析引起管網(wǎng)漏失的原因，提出合理有效的技術(shù)措施和方案，減少城市供水管網(wǎng)中的漏失量；在評(píng)價(jià)供水企業(yè)的管理水平和服務(wù)質(zhì)量時(shí)，為國(guó)家管理部門(mén)提供一定的依據(jù)；對(duì)供水企業(yè)而言，研究如何量化供水管網(wǎng)漏失量，具有潛在的經(jīng)濟(jì)效益。
[Abstract]:The total amount of water resources in our country is very limited at present. It is urgent to take reasonable measures of saving water and controlling leakage to optimize the allocation of water resources. For the water supply industry, how to effectively quantify the leakage of the pipe network and reduce the leakage amount of the water supply network is an important task to be solved urgently. It is of great practical significance to study how to quantify the leakage of water supply network. In this paper, the shortcomings of the three methods are analyzed based on the water balance analysis method, the night minimum flow method and the hydraulic model based on the leakage quantity of the pipe network, which are commonly used in the world. And can not accurately calculate the leakage of the water supply network, it is difficult to reflect the true change of the leakage in the water supply network. Up to now, there is no uniform and accurate method to calculate the leakage of pipe network. Based on the Kalman filtering analysis theory commonly used in the field of information control, the state equation and observation equation of the water supply network system are constructed, and a new method is proposed to analyze and calculate the leakage in the pipe network. The main contents of the study are as follows: 1. Based on the simulation experiment of pipe network leakage, the change of pipe network leakage under the conditions of different water source number, different topology structure and different leakage point is analyzed. 2. The feasibility of using Kalman filtering theory to analyze the leakage of water supply network is analyzed. The mathematical model of water supply network system based on Kalman filter theory is constructed and analyzed. 3. Taking the actual pipe network project as an example, the mathematical model of the water supply pipe network system constructed in the experiment is applied to the pipe network project, and the change of the leakage is analyzed. The results show that the leakage rate of pipe network calculated by Kalman filtering algorithm is about 13.36%, and the difference between them is only 1.22% compared with 12.14% obtained by water quantity audit. It can be considered that it is feasible to use Kalman filtering algorithm to analyze the leakage of pipe network. In the research of this subject, the causes of the leakage of the pipe network are analyzed, and reasonable and effective technical measures and schemes are put forward to reduce the amount of leakage in the urban water supply network. When evaluating the management level and service quality of water supply enterprises, it provides a certain basis for the national management department, and for the water supply enterprises, the study on how to quantify the leakage of water supply network has potential economic benefits.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TU991.33
本文編號(hào)：2450720
[Abstract]:The total amount of water resources in our country is very limited at present. It is urgent to take reasonable measures of saving water and controlling leakage to optimize the allocation of water resources. For the water supply industry, how to effectively quantify the leakage of the pipe network and reduce the leakage amount of the water supply network is an important task to be solved urgently. It is of great practical significance to study how to quantify the leakage of water supply network. In this paper, the shortcomings of the three methods are analyzed based on the water balance analysis method, the night minimum flow method and the hydraulic model based on the leakage quantity of the pipe network, which are commonly used in the world. And can not accurately calculate the leakage of the water supply network, it is difficult to reflect the true change of the leakage in the water supply network. Up to now, there is no uniform and accurate method to calculate the leakage of pipe network. Based on the Kalman filtering analysis theory commonly used in the field of information control, the state equation and observation equation of the water supply network system are constructed, and a new method is proposed to analyze and calculate the leakage in the pipe network. The main contents of the study are as follows: 1. Based on the simulation experiment of pipe network leakage, the change of pipe network leakage under the conditions of different water source number, different topology structure and different leakage point is analyzed. 2. The feasibility of using Kalman filtering theory to analyze the leakage of water supply network is analyzed. The mathematical model of water supply network system based on Kalman filter theory is constructed and analyzed. 3. Taking the actual pipe network project as an example, the mathematical model of the water supply pipe network system constructed in the experiment is applied to the pipe network project, and the change of the leakage is analyzed. The results show that the leakage rate of pipe network calculated by Kalman filtering algorithm is about 13.36%, and the difference between them is only 1.22% compared with 12.14% obtained by water quantity audit. It can be considered that it is feasible to use Kalman filtering algorithm to analyze the leakage of pipe network. In the research of this subject, the causes of the leakage of the pipe network are analyzed, and reasonable and effective technical measures and schemes are put forward to reduce the amount of leakage in the urban water supply network. When evaluating the management level and service quality of water supply enterprises, it provides a certain basis for the national management department, and for the water supply enterprises, the study on how to quantify the leakage of water supply network has potential economic benefits.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TU991.33
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相關(guān)碩士學(xué)位論文 前1條
1 韓安杰;基于Kalman濾波理論的供水管網(wǎng)漏失分析研究[D];哈爾濱工業(yè)大學(xué);2014年
本文編號(hào)：2450720
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