Safety operation control method of urban drainage networks

Abstract

The present invention discloses a safety operation control method of urban drainage networks. At present, urban drainage network system in our country is difficult to directly measure state information in a pipeline such as water flow, water level, water pressure, flow velocity and the like, a long delay from control input to water flow state changing is required so as to bring great difficulty for safety operation control of preventing a drainage pipeline from overflow, and therefore, an efficient and timely safety operation control method is lacked at present. A delay compensation proportional integral observer is employed to perform estimation and reconstruction of the water flow state of the drainage pipeline, a feedback control design based on the observer is performed, and methods such as the separation principle and the Lambert W function are employed to respectively perform gain solution of the observer and a controller. The safety operation control method of the urban drainage networks solves the difficulty of safety operation control for preventing urban drainage pipeline from overflowing, satisfies the accuracy and timeliness requirement of actual safety operation control and facilitates safe and reliable operation of a modern urban drainage network system.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and relates to a method for estimating the water flow state of a drainage pipe using a time-delay compensation observer and realizing a safe operation control method for preventing overflow of a drainage pipe network based on the observer, which can be used in the urban drainage industry. Background technique [0002] Urban drainage pipe network system is an important infrastructure of modern cities, known as "the lifeline of the city". The task of the urban drainage system is to collect, transport and discharge urban domestic sewage, industrial wastewater, atmospheric precipitation runoff and other discarded water. The safe operation of the drainage pipe network system is the premise and guarantee of modern urban production and life. Severe urban sewage overflow and frequent urban waterlogging in my country have become the main problems for the safe operation of urban drainage pipe net...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a new method for the safe operation control of the urban drainage pipe network in view of the lack of a timely and accurate control method for preventing pipe overflow in the current urban drainage pipe network system in my country

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