Open channel water delivery system accident inversion model and accident flow and position determination method

Abstract

The invention discloses an open channel water delivery system accident inversion model and an accident flow and position determination method. Normal water intake flow and accident flow are added on the basis of an ID model, an inversion linear model is established, the inversion linear model comprises two parameters of the water surface area and the lag time, and the water surface area and the lag time are identified through parameter identification; then the accident influence lag time is calculated through the lag time obtained through identification, the accident position is determined by combining the time difference between the upstream water level change and the downstream water level change, and the accident flow is calculated by substituting the accident influence lag time and the water surface area into an inversion linear model. According to the invention, accurate accident source information can be obtained, and the method has very important significance in quickly starting an emergency plan, reducing adverse effects of an accident and guaranteeing the structural safety of a canal system or a water diversion project; and the established accident inversion model is strong in mechanism property and relatively small in required calculation power, so that the working efficiency is improved, and the accuracy and the real-time performance are improved.

Description

technical field [0001] The invention belongs to the field of water conservancy, and relates to an accident identification technology of an open channel water delivery system, in particular to an inversion model of an open channel water delivery system accident and a method for determining accident flow and location. Background technique [0002] Water resources are very important natural resources, strategic economic resources, and an integral part of a country's comprehensive national strength. The problem of water resources in my country is very prominent. The per capita water resources in my country are 2200m 3 At present, 16 provinces (cities, districts) have per capita water resources below the severe water shortage standard, and 6 provinces and districts have per capita water resources below 500m 3 . At the same time, my country's water resources are also characterized by (1) uneven distribution between years and years, frequent droughts and floods, and prominent con...

AI Technical Summary

Problems solved by technology

Accident inversion is a necessary condition for launching an emergency plan in a targeted manner, because only by knowing the type of accident, the accident pond, the specific location of the accident, and the severity of the accident can an appropriate emergency plan be proposed. Accident inversion is the basis of emergency dispatch However, at present, it is very difficult to obtain accurate and specific information about the accident. Often, after the accident continues to develop for a period of time, the large water level and flow fluctuations in the system are observed by the management personnel, and then the on-site canal patrol can be confirmed. Especially when the accident happens at night, the response cycle will be longer

In this way, a lot of time is wasted, the best time to reduce accident losses through accident scheduling is missed, and the risk of accidents continuing to develop into other more vicious accidents or causing secondary disasters is increased.

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