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Multi-objective energy management for PHEV using Pontryagin's minimum principle and particle swarm optimization online

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Science China(Information Sciences) 2021年第1期64卷 263-265页

作者： Yuying WANG xiaohong jiao Institute of Electric Engineering Yanshan University

Dear editor,Plug-in hybrid electric vehicles (PHEVs),which can be charged through an external power grid,have been regarded as one of the research areas for the developing methods to reduce petroleum demand and exhaust *** management strategies (EMSs) are crucial for reducing the energy consumption for PHEVs because the power demands during the driving cycle are usually provided by multiple energy *** addition,PHEVs are often equipped with high-cost batteries,which need to be charged and discharged *** indicates that,to achieve the economic feasibility of PHEVs,battery health cannot be ignored with respect to energy management [1].

关键词： plug-in hybrid electric vehicle energy management strategy multi-objective Pontryagin's minimum principle particle swarm optimization

Air-fuel ratio control with stochastic L_2 disturbance attenuation in gasoline engines

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控制理论与应用（英文版） 2013年第4期11卷 586-591页

作者： Jun YANG Tielong SHEN xiaohong jiao Institute of Electrical Engineering Yanshan University Department of Engineering and Applied Sciences Sophia University

In this paper, the problem of stochastic L2 disturbance attenuation of the air-fuel ratio is investigated with consideration of cyclic variation of the residual gas fraction （RGF）. A stochastic robust controller is designed based on a discrete-time dynamic model in which the RGF is modeled as a stochastic process with Markovian property. Finally, the sampling process-based statistical analysis for the RGF and the validation of the proposed control law are presented through the experiments conducted on a gasoline engine test bench.

关键词： Residual gas fraction Air-fuel ratio Stochastic robust control

Adaptive coordinated control of engine speed and battery charging voltage

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控制理论与应用（英文版） 2008年第1期6卷 69-73页

作者： Jiangyan ZHANG xiaohong jiao Institute of Electrical Engineering Yanshan University Qinhuangdao Hebei 066004 China

In this paper, the control problem of auxiliary power unit （APU） for hybrid electric vehicles is investigated. An adaptive controller is provided to achieve the coordinated control between the engine speed and the battery charging voltage. The proposed adaptive coordinated control laws for the throttle angle of the engine and the voltage of the power-converter can guarantee not only the asymptotic tracking performance of the engine speed and the regulation of the battery charging voltage, but also the robust stability of the closed loop system under external load changes. Simulation results are given to verify the performance of the proposed adaptive controller.

关键词： Hybrid electric vehicles Auxiliary power units Engine speed Adaptive coordinated control Asymptotic tracking

Real-time energy management strategy based on predictive cruise control for hybrid electric vehicles

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Control Theory and Technology 2022年第2期20卷 161-172页

作者： Xiongxiong You xiaohong jiao Zeyi Wei Yahui Zhang Engineering Research Center of the Ministry of Education for Intelligent Control System and Intelligent Equipment Yanshan UniversityQinhuangdao 066000HebeiChina School of Electrical Engineering Yanshan UniversityQinhuangdao 066000HebeiChina School of Mechanical Engineering Yanshan UniversityQinhuangdao 066000HebeiChina

With the help of traffic information of the connected environment,an energy management strategy(EMS)is proposed based on preceding vehicle speed prediction,host vehicle speed planning,and dynamic programming(DP)with PI correction to improve the fuel economy of connected hybrid electric vehicles(HEVs).A conditional linear Gaussian(CLG)model for estimating the future speed of the preceding vehicle is established and trained by utilizing historical *** on the predicted information of the preceding vehicle and traffic light status,the speed curve of the host vehicle can ensure that the vehicle follows safety and complies with traffic rules simultaneously as *** real-time power allocation is composed of offline optimization results of DP and the real-time PI correction items according to the actual operation of the *** effectiveness of the control strategy is verified by the simulation system of HEVs in the interconnected environment established by E-COSM 2021 on the MATLAB/Simulink and CarMaker platforms.

关键词： Connected HEVs EMS Gaussian model prediction Speed planning DP

Adaptive control for a class of nonlinear systems with time-varying delays in state and input

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控制理论与应用（英文版） 2011年第2期9卷 183-188页

作者： jiao, xiaohong Yang, Jie Li, Qiang Institute of Electrical Engineering Yanshan University Qinhuangdao Hebei 066004 China

This paper is concerned with the adaptive stabilization problem of uncertain input delayed systems.A solution to this problem is given for a class of uncertain nonlinear systems with time-varying delays in both state and *** adaptive asymptotically stabilizing controller,which can guarantee the stability of the closed-loop system and the convergence of the original system state,is designed by means of the Lyapunov-Krasovskii functional stability theory combined with linear matrix inequalities (LMIs) and nonlinear adaptive *** numerical examples are presented to demonstrate the effectiveness of the derived controller.

关键词： Adaptive stabilization Input delay State delay Uncertain nonlinear delay systems Lyapunov-Krasovskii functional Linear matrix inequalities

Electromechanical coupling driving control for single-shaft parallel hybrid powertrain

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Science China(Technological Sciences) 2014年第3期57卷 541-549页

作者： YANG Chao jiao xiaohong LI Liang ZHANG YaHui ZHANG LiPeng SONG Jian Institute of Electric Engineering Yanshan University State Key Laboratory of Automotive Safe and Energy Tsinghua University

The single-shaft parallel hybrid powertrain with the automatic mechanical transmission(AMT)is an efficient hybrid driving system in the hybrid electric bus(HEB),while the electromechanical coupling driving control becomes a complicated question to find a transient optimal control method to distribute the power between the engine and the electric machine(EM).This paper proposes an innovative control method to deal with the complicated transient coupling driving process of the electromechanical coupling driving system,considering the accelerating condition and the cruising condition mostly in the city driving cycle of *** EM might be operated at driving mode or generating mode to assist the diesel engine to work in its high-efficiency ***,the adaptive torque tracking controller has been brought forward to ensure that the EM implements the demand torque as well as compensate the torque fluctuation of diesel *** d?q axis mathematical model and back stepping method are employed to deduce the adaptive controller and its adaptive *** results demonstrate that the proposed control scheme can make the output torque of two power sources respond rapidly to the demand torque from the powertrain in the given driving *** proposed method could be adopted in the real control of HEB to improve the efficiency of the hybrid driving system.

关键词： single-shaft parallel hybrid powertrain coupling driving control adaptive control torque tracking

变速恒频双馈风力发电系统RBF网络整定PID控制器设计

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太阳能学报 2011年第3期32卷 311-317页

作者：王纪亮焦晓红燕山大学电气工程学院秦皇岛066004

针对双馈风力发电系统基于近似线性化模型的PID控制系统动态性能较差、抗干扰能力较弱的缺点,该文给出基于非线性逆系统伪线性化模型的具有RBF网络整定的PID控制策略。首先使用非线性控制系统的逆系统理论对双馈风力发电系统的完整数学... 详细信息

针对双馈风力发电系统基于近似线性化模型的PID控制系统动态性能较差、抗干扰能力较弱的缺点,该文给出基于非线性逆系统伪线性化模型的具有RBF网络整定的PID控制策略。首先使用非线性控制系统的逆系统理论对双馈风力发电系统的完整数学模型进行解耦,然后利用RBF神经网络在线调整PID控制器参数,处理系统参数不确定性和外部干扰对控制性能的影响。理论分析和仿真研究结果表明:该控制器能保证系统在风速变化情况下最大程度地获取风能,且达到电网恒频恒压的要求,实现安全稳定地并网运行。

关键词：双馈风力发电系统非线性 RBF神经网络 PID控制逆系统

Dihydrochalcones and phenanthrene derivatives from Fissistigma bracteolatum

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Journal of Medical Colleges of PLA(China) 2010年第4期25卷 226-234页

作者： Zhu Hongping Lu Xiaoling Sun xiaohong Xu Qiangzhi jiao Binghua Department of Biochemistry and Molecular Biology College of Basic Medical Sciences Second Military Medical University Shanghai 200433 China

Three dihydrochalcones derivatives 1-3, flavone 4 and phenanthrene derivative 5 were isolated, together with 9 known compofinds, from the air-dried root bark of Fissistigma bracteolatum Chatterjee. Their structures we... 详细信息

关键词： Fissistigma Fissistigma bracteolatum Chatterjee Dihydrochalcone Phenanthrene

Effect of Nano-ZrO_2 on Microstructure and Thermal Shock Behaviour of Al_2O_3/SiC Composite Ceramics Used in Solar Thermal Power

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Journal of Wuhan University of Technology(Materials Science) 2011年第2期26卷 285-289页

作者：徐晓虹 School of Materials Science and Engineering Wuhan University of Technology

The Al2O3-ZrO2（3Y）-SiC composite ceramics used in solar thermal power were prepared by micrometric Al2O3,nano-ZrO2 and SiC powders under the condition of pressureless *** bulk density and bending strength of samples with 10vol% nano-ZrO2 sintered at 1480℃ were 3.222 g/cm3 and 160.4MPa,*** bending strength of samples after 7 times thermal shock tests （quenching from 1000℃ to 25℃ in air medium） is 132.0MPa,loss rate of bending strength is only 17%.The effect of nano-ZrO2 content on the microstructure and performance of Al2O3-ZrO2（3Y）-SiC composite ceramic was *** experimental results show that the bending strength of samples with above 10vol% nano-ZrO2 content has decreased,because the volume expansion resulting from t-ZrO2 to m-ZrO2 phase transformation is excessive;Adding proper nano-ZrO2 would be contributed to improve the thermal shock resistance of the composite *** Al2O3-ZrO2（3Y）-SiC composite ceramic has promising potential application in solar thermal power.

关键词： Al2O3 nano-ZrO2 transformation toughening thermal shock resistance composite ceramics solar thermal power