| 管光华,朱哲立,王康.含多分水口的渠道广义积分时滞(ID)控制建模及验证[J].水利学报,2022,53(5):598-607 |
| 含多分水口的渠道广义积分时滞(ID)控制建模及验证 |
| Modeling and validation based on Generalized-Integrator-Delay model for water conveyance and distribution canal systems with multi-offtake |
| 投稿时间：2021-09-08 |
| DOI：10.13243/j.cnki.slxb.20210825 |
| 中文关键词: 积分时滞模型 分水口 模型预测控制 |
| 英文关键词: Integrator-Delay (ID) model offtakes model predict control |
| 基金项目:国家自然科学基金项目(51979202，51439006，51009108)；“十三五”国家重点研发项目(2016YFC0401810) |
|
| 摘要点击次数: 1248 |
| 全文下载次数: 636 |
| 中文摘要: |
| 积分时滞(ID)模型是应用最广泛的输水明渠控制模型之一,建模时常假定分水口均位于渠池的下游尾端。然而对于我国灌区渠系而言,分水口位置可能位于渠池沿线任意位置,此时直接应用ID模型将会导致控制效果较差甚至出现系统失稳的可能。针对这种情况,本文首先分析了分水口位置对ID模型预测精度的影响,在考虑分水扰动的滞后时间后提出了广义ID模型,并分别以传统ID模型和广义ID模型为基础进行模型预测控制(MPC)算法开发及仿真验证。仿真结果显示,对于分水口位于上游段的渠池,本文所提出的广义ID模型预测精度更高,且控制效果的改善程度可达65%。同时在控制器调试过程中,控制器参数的可选域增大约1.4倍,表明更容易获取合适的控制器,试错成本显著降低。 |
| 英文摘要: |
| Integrator-Delay (ID) model is one of the most widely used control model for open canal systems,which assumes that all offtakes are located at the downstream end of the pools. However,the location of the offtake may be anywhere along the canal for the irrigation districts in China. For such situation, the application of ID model may result in poor control performance,or even the instability. Accordingly, the paper first analyzes the impact of different location of offtakes on the prediction accuracy of ID model. By considering the delay time of the disturbance caused by scheduled water orders,the Generalized-Integrator-Delay (GID) model is proposed. Furthermore,model predict control (MPC) algorithm is implemented on the basis of ID model and GID model,respectively. According to the simulation results,if the offtake is located at the upstream in the pool,the proposed GID model has a higher accuracy for prediction,and the improvement in control performance can reach 65%. During the controller tunning procedure,the optional domain of the controller parameters increases by 1.4 times,indicating that it is much easier to find an appropriate controller,and the cost of trial-and-error can be greatly reduced. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|