Delay-Dependent MIMO Robust Control for Power Following System of Auxiliary Power Unit in Series Hybrid Electric Vehicles

Han, Feng; Ye, Jie; Xiong, Wei; Gong, Qichangyi; Xu, Jinbang

doi:10.1109/tvt.2021.3074698

Cited by 15 publications

(3 citation statements)

References 17 publications

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“…Energy and environmental problems urgently require the development of energysaving and environmentally friendly vehicles [1], and hybrid electric vehicles (HEVs) are an effective energy conservation and environmental protection strategy [2]. Through the collaborative work of the engine and an electric motor, HEVs can achieve excellent comprehensive performance [3]. In most hybrid vehicles, the internal combustion engine (ICE) still plays an important role.…”

Section: Introductionmentioning

confidence: 99%

Research on the Performance Characteristics of a Waste Heat Recovery Compound System for Series Hybrid Electric Vehicles

Dang,

Han

2024

Processes

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In this paper, a waste heat recovery compound system for series hybrid electric vehicles is established. The existing components of vehicle air conditioning are used in the organic Rankine cycle (ORC) to realize miniaturization. The waste heat recovery compound system is constructed using GT-SUITE, and the objective of the analysis is to increase the power output and engine thermal efficiency increase ratio (ETEIR). The effects of the expander speed, pump speed, working fluid mass flow rate, and working fluid type on the waste heat recovery compound system are analyzed. The simulation results show that the optimal schemes for the ORC system and compound system corresponding to the expander speed and pump speed are 1000 pm, 2500 rpm, 1200 rpm, and 2500 rpm, respectively. Compared with the ORC system, the maximum power output of the compound system with the same working fluid in three states (1500 rpm, 2500 rpm, and 3500 rpm) of the engine is increased by 21.67%, 24.05%, and 28.23%, respectively. Working fluid supplies of 0.4 kg/s, 0.4 kg/s, and 0.6 kg/s in the three engine states are also considered the best solutions. The working fluid R1234yf and R1234ze are the preferred choices for a waste heat recovery compound system, which have a high system power output and ETEIR and are environmentally friendly.

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Section: Introductionmentioning

confidence: 99%

Research on the Performance Characteristics of a Waste Heat Recovery Compound System for Series Hybrid Electric Vehicles

Dang,

Han

2024

Processes

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“…The existence of the time delay would lead to the deterioration of the control performance of the system. In recent years, the L-K functional method has been widely used to study the stability analysis of mechanical systems with time delay [26,27]. By using L-K functional in conjunction with a linear matrix inequality (LMI) optimization procedure and a Wirtinger-based integral inequality technique, the delay-dependent adequate condition in a permanent magnet synchronous motor system was proposed [28].…”

Section: Introductionmentioning

confidence: 99%

H$$_{\infty }$$ controller for the vibration suppression of rolling mill systems with time-varying input delay

2023

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The rolling mill system has the characteristic of measurement delay. In order to deal with the effects of time-delayed feedback from strip thickness measurement on vibration suppression, this paper studies the vibration suppression control strategy for the rolling mill system under time varying delay. Initially, the nonlinear rolling force and disturbance are taken into consideration during the dynamic rolling process. The mechanism-hydraulic coupling vibration model is established based on the flow equation and Newton's second law. Meanwhile, input delay caused by strip thickness measurement is considered in the rolling mill system and a time-delayed coupling vibration statespace model is introduced via choosing the appropriate state variables. Secondly, the corresponding linear matrix inequalities (LMIs) are derived from an augmented Lyapunov-Krasovskii functional (LKF) with advanced inequalities and are used to synthesize a controller that can achieve the asymptotical stability and H ∞ performance index. Finally, the effectiveness of the proposed control algorithm is verified by simulation experiment results.

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Section: Introductionmentioning

confidence: 99%

H∞ controller design for the vibration suppression of the rolling mill system with time-varying input delay

Qian

Zhang

Hua

2022

Preprint

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The rolling mill system has the characteristic of measurement delay. In order to deal with the effects of time-delayed feedback from strip thickness measurement on vibration suppression, this paper studies the vibration suppression control strategy for the rolling mill system under time varying delay. Initially, the nonlinear rolling force and disturbance are taken into consideration during the dynamic rolling process. The mechanism-hydraulic coupling vibration model is established based on the flow equation and Newton's second law. Meanwhile, input delay caused by strip thickness measurement is considered in the rolling mill system and a time-delayed coupling vibration state-space model is introduced via choosing the appropriate state variables. Secondly, the corresponding linear matrix inequalities (LMIs) are derived from an augmented Lyapunov-Krasovskii functional (LKF) with advanced inequalities and are used to synthesize a controller that can achieve the asymptotical stability and H ∞ performance index. Finally, the effectiveness of the proposed control algorithm is verified by simulation experiment results.

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Delay-Dependent MIMO Robust Control for Power Following System of Auxiliary Power Unit in Series Hybrid Electric Vehicles

Cited by 15 publications

References 17 publications

Research on the Performance Characteristics of a Waste Heat Recovery Compound System for Series Hybrid Electric Vehicles

Research on the Performance Characteristics of a Waste Heat Recovery Compound System for Series Hybrid Electric Vehicles

H$$_{\infty }$$ controller for the vibration suppression of rolling mill systems with time-varying input delay

H∞ controller design for the vibration suppression of the rolling mill system with time-varying input delay

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