【摘 要】
:
针对双容水箱液位控制系统存在时变、非线性和滞后等不确定因素,设计了一种基于滑模控制的方案,解决了传统PID控制在精准高效方面存在的缺陷.通过对双容水箱的分析,先后建立
【机 构】
:
浙江理工大学机械与自动控制学院 杭州310018
论文部分内容阅读
针对双容水箱液位控制系统存在时变、非线性和滞后等不确定因素,设计了一种基于滑模控制的方案,解决了传统PID控制在精准高效方面存在的缺陷.通过对双容水箱的分析,先后建立传递函数及状态空间方程两种模型,设计了相应的滑模面和趋近率,从而实现对双容水箱液位的变结构非线性控制.仿真结果表明,控制器大大降低了系统的超调量和调整时间,验证了所提方案的优越性,滑模变结构控制器具有较好的自适应性和较强的抗干扰能力.
其他文献
The change of bubbles and the position of the tuyere in an oxygen coal combustion melting and separating furnace affect the flow and splash behavior of the molten pool.To analyze this problem further,a three-dimensional numerical simulation method was use
A series of zinc oxide(ZnO)nanorods arrays with different morphologies are synthesized on stainless steel mesh via a facile electrodeposition method.The influences of electrodeposition parameters on the diameter,length,density and morphology of obtained Z
针对建筑物稳定性受各种因素影响,易出现沉降变形现象,设计了三维激光扫描技术的建筑物沉降在线预测系统。该系统中三维激光扫描仪硬件子系统负责采集建筑物的真实三维点云数据;后处理控制软件子系统通过三维激光扫描仪控制软件控制扫描速度,建筑物沉降预测软件通过点云拼接与点云数据预处理构建建筑物三维模型,利用最小二乘原理结合监测点的坐标,获取监测面即回归平面和建筑物沉降数据,利用二次移动平均法提取沉降数据的趋势
对吉安大修升级后首部SC型双偏振天气雷达,按照升级大纲要求进行性能参数测试,主要性能参数测试表明,动态范围、噪声系数、强度定标、径向速度检验、差分参量等主要参数指标均满足设计要求。接收机水平通道和垂直通道的参数指标经测试两通道之间存有一定偏差,这种不确定偏差会引起双偏振差分反射率ZDR、差分相移ΦDP、差分相移率KDP、相关系数PHV等参量的误差,因此每年汛期前及年终需对雷达系统进行定期巡检标定确保业务使用质量。同时详细给出各性能参数具体测
The vacuum thermal evaporation technique was used to simultaneously deposit zinc coatings onto interstitial free steel plates and single-crystal silicon wafers in a high vacuum environment.The effect of substrate temperature on the mor-phology and crystal
At present,lots of municipal solid wastes(MSWs)are treated by incineration technology,which produces a large amount of fly ash that needs to be treated innocuously.A new method of using metallurgical shaft furnace to treat the MSW fly ash was thus propose
Pulverized coal injection technique has been widely used as a means of reducing coke consumption during ironmaking process.Owing to the increasing shortage of fossil fuels,other substitutes such as biomass,plastic,and waste tires have been studied in rece
The partitioning of nitrogen atoms and its effect on the retained austenite content(RAC)during quenching and partitioning(Q&P)process were investigated by dilatometry,X-ray diffraction,and field emission transmission electron microscopy with energy-di
空气湿度是自动气象站的重要观测要素,其准确度至关重要。为比较DHC2型和DHC1型两种气象用温湿度传感器的湿度测量性能,选取上述两种型号的传感器各100支,以3MS计量检定系统为实验装置,确保比对结果的准确性和代表性,为测量准确度的分析及湿度的修正提供理论参考。结果表明,相较于DHC2型,DHC1型正反行程中正负误差所占比重变化相对平缓,但高湿时正误差率大,更容易出现高湿不退的情况;两种传感器湿度
多负载无线充电技术可解决多个无人机续航能力问题,可提高无人机充电安全性和智能化.设计了一种无人机群集中式无线充电系统,发射端采用单电源发射线圈串联连接,接收端是多个