基于Kalman滤波理论的供水管网漏失分析研究
发布时间：2019-03-31 08:01
【摘要】：我国当前的水资源总量十分有限，迫切需要采取合理的节水与控漏措施来优化水资源配置。对于供水行业而言，如何有效地对管网漏失进行量化，降低供水管网的漏失量是一项亟待解决的重要任务。对如何量化供水管网漏失量进行研究，具有十分重要的实际意义。 本文结合国际上常见的求解漏失量的水平衡分析法、夜间最小流量法和基于管网漏失量水力模型的分析方法，分别分析了三种方法的不足之处，且都不能精确的计算出供水管网漏失量，难以反映供水管网中漏失量的真实变化情况。 截止目前，，国际上没有统一和精准的方法来计算管网漏失量。本课题结合信息控制领域常用的Kalman滤波分析理论，构建供水管网系统的状态方程与观测方程，提出一种新的方法，用于分析和计算管网中的漏失量。研究的主要内容有： 1.通过管网漏失模拟实验，分析在不同水源个数、不同管网拓扑结构、不同漏点数的条件下管网漏失量变化情况。 2.采用Kalman滤波理论分析供水管网漏失量的可行性分析，构建基于Kalman滤波理论的供水管网系统数学模型，并加以分析。 3.以实际管网工程为分析实例，将实验中构建的供水管网系统数学模型应用到管网工程实例中，分析漏失量的变化情况，结果表明采用Kalman滤波算法计算得出的管网漏失率约为13.36%，与通过水量审计得到的管网漏失率12.14%相比，二者之间仅相差1.22%，可认为采用Kalman滤波算法分析管网漏失量是可行的。 本课题研究中，分析引起管网漏失的原因，提出合理有效的技术措施和方案，减少城市供水管网中的漏失量；在评价供水企业的管理水平和服务质量时，为国家管理部门提供一定的依据；对供水企业而言，研究如何量化供水管网漏失量，具有潜在的经济效益。
[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.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU991.33
本文编号：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.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU991.33
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1 韩安杰;基于Kalman滤波理论的供水管网漏失分析研究[D];哈尔滨工业大学;2014年
本文编号：2450720
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