Open channel water delivery system accident identification method

Abstract

The invention discloses an open channel water delivery system accident identification method. The method comprises the following steps: firstly, establishing a simulation model of an actual channel; then taking the water use plan as an input quantity, and carrying out simulation calculation through a simulation model to obtain a gate target opening degree, a downstream target water level and a target lockage flow of each channel pool at different moments; taking the water level, the gate opening degree and the lockage flow, obtained through actual measurement, of the front portion and the rear portion of each channel pool gate as input variables, and obtaining four judgment indexes including absolute maximum gate opening degree deviation, maximum water level deviation speed, final-state flow increment and final-state water level increment in combination with target values obtained through simulation calculation; and according to the four judgment indexes, judging information such as accident occurrence, accident types and accident occurrence channels and pools. The obtained accident source information provides a basis for emergency scheduling, so that an emergency plan can be quickly started, adverse effects of accidents can be reduced, further spreading of the accidents or secondary disasters can be prevented, and the structural safety of efficient water supply and canal systems or water diversion projects can be guaranteed.

Description

technical field [0001] The invention belongs to the field of water conservancy, and relates to a channel automatic control technology, in particular to an accident identification method of an open channel water delivery system. 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 contradictions between supply and demand; (2) uneven regional distribution and mismatching of...

AI Technical Summary

Problems solved by technology

Obtaining accident source information is a necessary condition for launching emergency plans or dispatching in a targeted manner, because only by knowing the type of accident, the accident pool, the specific location of the accident, and the severity of the accident can an appropriate emergency plan be proposed. Accident identification is the key to emergency response. The basis and preconditions of dispatching, but it is very difficult to obtain accurate and specific information about the accident at present. 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 inspection of the canal is carried out. can be determined, especially when the accident occurs 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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