Gate control method suitable for emergency water cut-off downstream of series channels

Abstract

The present invention discloses a gate adjusting and controlling method suitable for a series channel downstream emergency water interruption condition, and relates to the adjusting and controlling field. The method comprises the steps of constructing a water power simulation model of a to-be-monitored channel engineering; adopting a three-point water level control method to real-timely adjust a most downstream check gate where an emergency event occurs and the gate closing rate of all last-level check gates of the most downstream check gate until the inlet flow rate and the outlet flow rate of a channel pool to which any one check gate belongs are balanced, and stopping closing the check gate of the channel pool; calculating the real-time water storage quantity of the channel pool to which the check valve belongs according to the real-time flow rate of the check gate, utilizing the real-time water storage quantity at the current moment to adjust the flow rate of the check gate at thenext moment until the real-time water storage quantity of the channel pool is equal to the target water storage amount of the channel pool, thereby adjusting and controlling the gate of the channel where the emergency event occurs. The gate adjusting and controlling method of the present invention reduces the maximum damming height in front of the gate, reduces an overflowing risk, at the same time, can adjust the water level after the emergency event is ended, and prevents the water level after the stabilization from being too high.

Description

technical field [0001] The invention relates to the field of control and adjustment, in particular to a gate control method suitable for emergency water cut-off downstream of series channels. Background technique [0002] The purpose of the water diversion project is to supply water along the line, so the goal of its normal operation is to supply the required water to the water users along the line on time. Engineering practice shows that a small change in the water level of the main canal will cause a large change in the diversion flow, which directly affects the fairness and efficiency of water distribution. In addition, rapid drops or rises in water levels in main canals can damage the canal lining, jeopardizing the safe operation of the canal. Therefore, the actual channel ensures the efficient and safe operation of the entire channel system by controlling the water level at a limited number of points. These points are usually called channel operation control points. Ma...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a gate control method suitable for the case of emergency water cut-off in the downstream of the series channel, so as to solve the problem of gate control when the existing canal and pool automation control method is not applicable to the sudden water cut-off event in the downstream

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