针对明渠调水工程中流量切换时，由于调控不当导致闸前水位突破水位上下限的问题，提出安全调控可行 域的概念及其划分原则，通过一维水动力模型耦合二分法建立明渠调水工程节制闸的安全调控模型，实现流量切 换时节制闸调控开度、安全水位和调控时间区间的计算，进而得到节制闸的安全调控可行域和调控方案，并以南 水北调中线工程陶岔渠首至淇河节制闸 4 个节制闸开展实例研究。研究过程中根据各节制闸流量变化情况，分 别设置 12 种工况进行计算，结果表明：经模型计算的调控方案调控后，闸前水位控制在安全水位区间内，划分的 安全水位区间-Ⅱ较水位区间-Ⅰ起到了降低水位变幅的作用，模型运算速度快，最长时间为 8.99?s。给出了柔性调 度方案，使得调度更为灵活，面向实际工程更实用、操作性强，为调水工程的调度决策提供了支撑。

The?open?channel?water?transfer?project?is?an?important?means?to?solve?the?problem?of?regional?water shortage.?However,?during?the?operation?of?the?project,?the?upstream?flow?changed?frequently?due?to?the?variable demand?for?water?supply?along?the?line,?resulting?in?complex?and?changeable?water?conditions?along?the?line.?The control?gate?is?one?of?the?main?control?buildings?in?the?water?transfer?project?and?the?water?level?in?front?of?the?gate is?the?key?object?of?that?needs?the?dispatcher?to?pay?attention?to.?If?the?regulation?is?not?proper,?the?water?level?may exceed?the?limit,?which?not?only?poses?a?threat?to?the?safe?operation?of?the?water?transfer?project?but?also?affects?the efficient?water?supply?of?the?project.?Therefore,?it?is?of?great?significance?to?study?the?safety?regulation?of?control gates?in?open?channel?water?transfer?project. ??????To?solve?the?problem?that?the?water?level?in?front?of?the?gate?breaks?and?the?upper?and?lower?limits?of?the?water level?due?to?improper?regulation?during?flow?switching?in?an?open?channel?water?transfer?project,?the?concept?and transfer?principle?of?the?feasible?area?of?safety?regulation?and?control?of?the?gate?control?system?in?open?channel water?transfer?project?is?proposed.?The?control?scheme?of?the?control?gate?is?calculated?based?on?the?dichotomy- coupled ?one-dimensional ?hydrodynamic ?model. ?The ?regulation ?opening, ?safe ?water ?level, ?and ?regulation ?time interval ?of ?the ?control ?gate ?are ?calculated ?during ?flow ?switching. ?The ?model ?can ?quickly ?calculate ?the ?control opening,?safe?water?level,?and?control?time?interval?of?the?control?gate?when?the?upstream?flow?is?switched,?and?the feasible?domain?and?control?scheme?of?the?control?gate?was?obtained. ??????Four?control?gates?from?the?first?Taocha?Canal?to?the?Qi?River?in?the?Middle?Route?of?the?South-to-North?Water Transfers?Project?were?studied,?and?12?working?conditions?were?set?respectively?for?calculation.?The?results?showed that?when?the?upstream?flow?changes,?the?interval?regulation?scheme?calculated?by?the?model?could?strictly?control the?water?level?within?the?safety?water?level?interval,?and?the?transfer?principle?of?the?safety?water?level?interval played?a?role?in?reducing?the?amplitude?of?the?water?level.?The?calculation?speed?of?the?model?was?fast.?CUP_TIME function?in?Fortran?was?called?to?test?each?working?condition,?and?the?maximum?calculation?time?was?8.99?s. ??????The?control?scheme?calculated?by?the?model?makes?the?scheduling?more?flexible?and?practical?and?can?reduce?the operation?error?of?the?scheduler.?The?calculation?speed?of?the?model?can?meet?the?regulation?demand?of?sudden change?of?flow?in?the?middle?and?upper?reaches?of?the?project.?In?the?project,?upstream?flow?monitoring?can?be?used to?judge?flow?changes.?By?calculating?the?scheduling?scheme?of?each?control?gate,?the?effect?of?multi-gate?cascades can?be?realized.?It?provides?support?for?the?dispatching?decision?of?the?water?transfer?project?and?has?important significance?for?maintaining?the?smooth?operation?of?the?water?transfer?project.