为提升随机路面与局部脉冲激励路面下的悬架平顺性,提出语义分割路面识别的主动悬架显式模型预测控制(Explicit Model Predict Control,EMPC)方法。建立2自由度主动悬架动力学模型;搭建基于空洞空间金字塔池化的DeepLabV3语义分割路面...为提升随机路面与局部脉冲激励路面下的悬架平顺性,提出语义分割路面识别的主动悬架显式模型预测控制(Explicit Model Predict Control,EMPC)方法。建立2自由度主动悬架动力学模型;搭建基于空洞空间金字塔池化的DeepLabV3语义分割路面识别网络,对网络进行训练及验证;设计基于路面识别的主动悬架EMPC控制策略,将悬架动力学模型转化为预测模型,确定代价函数和约束条件,根据路面识别结果匹配代价函数最优加权权重;离线划分系统状态参数区域,求解各状态分区内系统的最优控制律;在随机路面和脉冲路面下,将所设计的控制策略与被动悬架、线性二次高斯控制(Linear-quadratic-gaussian Control,LQG)进行仿真分析对比。相较于LQG控制,基于路面识别的主动悬架EMPC控制策略可在随机路面下改善悬架性能,且在脉冲路面下对悬架的调节时间降低20%以上,悬架的平顺性得到有效提升。展开更多
For purpose of achieving the desired thermal comfort level and reducing the economic cost of maintaining the thermal comfort of green residential building,an energy efficient thermal comfort control strategy based on ...For purpose of achieving the desired thermal comfort level and reducing the economic cost of maintaining the thermal comfort of green residential building,an energy efficient thermal comfort control strategy based on economic model predictive control(EMPC)for green residential buildings which adopts household heat metering is presented.Firstly,the nonlinear thermal comfort model of heating room is analyzed and obtained.A practical nonlinear thermal comfort prediction model is obtained by using an approximation method.Then,the economic cost function and optimization problem of energy-saving under the necessary thermal comfort requirements are constructed to realize the optimal economic performance of the dynamic process.The energy efficient thermal comfort MPC(EETCMPC)is designed.Finally,the comparison and analysis between EETCMPC and Double-layer Model Predictive Control(DMPC)is simulated.The simulation results reveal that when the clothing insulation is typical,the energy efficiency of EETCMPC is 8.9%and 11.6%,respectively,in the two simulation scenarios.When the clothing insulation varies with temperature,the energy efficiency of EETCMPC is 7.29%and 9.15%,respectively,and the total energy consumption is reduced by about 1.65%and 14.6%,respectively,compared with the typical clothing insulation.The economic performance is improved in the thermal comfort dynamic process of heating room.展开更多
文摘为提升随机路面与局部脉冲激励路面下的悬架平顺性,提出语义分割路面识别的主动悬架显式模型预测控制(Explicit Model Predict Control,EMPC)方法。建立2自由度主动悬架动力学模型;搭建基于空洞空间金字塔池化的DeepLabV3语义分割路面识别网络,对网络进行训练及验证;设计基于路面识别的主动悬架EMPC控制策略,将悬架动力学模型转化为预测模型,确定代价函数和约束条件,根据路面识别结果匹配代价函数最优加权权重;离线划分系统状态参数区域,求解各状态分区内系统的最优控制律;在随机路面和脉冲路面下,将所设计的控制策略与被动悬架、线性二次高斯控制(Linear-quadratic-gaussian Control,LQG)进行仿真分析对比。相较于LQG控制,基于路面识别的主动悬架EMPC控制策略可在随机路面下改善悬架性能,且在脉冲路面下对悬架的调节时间降低20%以上,悬架的平顺性得到有效提升。
基金supported by the Key Technologies R&D Program of Henan Province(Nos.202102210335/212102210026/212102210509/222102220095/212102110218)the Key Scientific and Technological Project(Social Development Field)of Henan Province,China(No.212102310093)+1 种基金the Key Scientific Research Projects of Institutions of Higher Education in Henan Province(No.20B413007)the Science and Technology Program of Henan Province Department of Housing and Urban Rural Construction(No.K-1916).
文摘For purpose of achieving the desired thermal comfort level and reducing the economic cost of maintaining the thermal comfort of green residential building,an energy efficient thermal comfort control strategy based on economic model predictive control(EMPC)for green residential buildings which adopts household heat metering is presented.Firstly,the nonlinear thermal comfort model of heating room is analyzed and obtained.A practical nonlinear thermal comfort prediction model is obtained by using an approximation method.Then,the economic cost function and optimization problem of energy-saving under the necessary thermal comfort requirements are constructed to realize the optimal economic performance of the dynamic process.The energy efficient thermal comfort MPC(EETCMPC)is designed.Finally,the comparison and analysis between EETCMPC and Double-layer Model Predictive Control(DMPC)is simulated.The simulation results reveal that when the clothing insulation is typical,the energy efficiency of EETCMPC is 8.9%and 11.6%,respectively,in the two simulation scenarios.When the clothing insulation varies with temperature,the energy efficiency of EETCMPC is 7.29%and 9.15%,respectively,and the total energy consumption is reduced by about 1.65%and 14.6%,respectively,compared with the typical clothing insulation.The economic performance is improved in the thermal comfort dynamic process of heating room.
