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Design of Second Order Sliding Mode and Sliding Mode Algorithms:A Practical Insight to dc-dc buck converter

IEEE/CAA Journal of Automatica Sinica 2017年第3期4卷 483-497页

作者： Seyed Mehdi RakhtAla Monazzahalsadat Yasoubi Hassan HosseinNia Department of Electrical Engineering Golestan University Department of Electrical and Computer Engineering Concordia University Department of Precision and Microsystem Engineering Delft University of Technology

This paper presents a simple and systematic approach to design second order sliding mode controller for buck *** second order sliding mode control(SOSMC)based on twisting algorithm has been implemented to control buck switch mode *** idea behind this strategy is to suppress chattering and maintain robustness and finite time convergence properties of the output voltage error to the equilibrium point under the load variations and parametric *** addition,the influence of the twisting algorithm on the performance of closed-loop system is investigated and compared with other algorithms of first order sliding mode control such as adaptive sliding mode control(ASMC),nonsingular terminal sliding mode control(NTSMC).In comparative evaluation,the transient response of the output voltage with the step change in the load and the start-up response of the output voltage with the step change in the input voltage of buck converter were *** results were obtained from a hardware setup constructed in ***,for all of the surveyed control methods,the theoretical considerations,numerical simulations,and experimental measurements from a laboratory prototype are compared for different operating *** is shown that the proposed twisting method presents an improvement in steady state error and settling time of output voltage during load changes.

关键词： dc-dc buck converter non-singular-terminal sliding mode second order sliding mode twisting algorithm

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A voltage-mode dc–dc buck converter with fast output voltage-tracking speed and wide output voltage range

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Journal of Semiconductors 2014年第5期35卷 93-97页

作者：杨淼张白雪曹允孙锋锋孙伟锋 The 55th Research Institute of China Electronic Technology Group Corporation National ASIC System Engineering Research Center Southeast University

A high switching frequency voltage-mode buck converter with fast voltage-tracking speed and wide output voltage range has been proposed. A novel error amplifier （EA） is presented to achieve a high dc gain and get high phase margin, including a resistor and capacitor net, a unit gain block and a high gain block. The investigated converter has been fabricated with GF 0.35 μm CMOS process and can operate at 6 MHz with the output voltage range from 0.6 to 3.4 V. The experimental results show that the voltage-tracking speed can achieve 8.8 μs/V for up-tracking and 6 μs/V for down-tracking. Besides, the recovery time is less than 8 μs while the load current suddenly changes 400 mA.

关键词： dc-dc buck converter voltage-mode voltage-tracking speed

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维普期刊数据库

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Cascade sliding mode control based on extended state observer method for a dc-dc buck converter

Cascade sliding mode control based on extended state observe...

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第40届中国控制会议

作者： Shuwang Wang Li Juan Luyao Zhang Shenquan Li School of Electrical Energy and Power EngineeringYangzhou University

A cascade sliding mode control（CSMC） based on extended state observer（ESO） is proposed for a pulse width modulation based dc-dc buck converter system subject to disturbances in this ***,a novel tracking error state space model is introduced to define the matched and mismatched disturbances as a uniform matched ***,an extended state observer is designed to estimate the system states and total disturbances,including load disturbances and input voltage ***,the novel cascade sliding mode controller is constructed for the dc-dc buck converter based on the estimate *** addition,the detailed theoretical stability analysis of the proposed controller is analyzed by a Lyapunov stability ***,compared with traditional sliding mode control based on ESO（SMC-ESO） method,simulation results show that the CSMC-ESO method not only has the advantage of easy parameter tuning,but also performs a better disturbance rejection ability.

关键词： dc-dc buck converter cascade sliding mode control (CSMC) extended state observer (ESO) disturbance rejection

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Finite-Time Output Feedback Control for dc-dc buck Power converters System

Finite-Time Output Feedback Control for DC-DC Buck Power Con...

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第36届中国控制会议

作者： Yeyuan Xu Haibo Du School of Electrical Engineering and Automation Hefei University of Technology

ISBN: (纸本)9781538629185

This paper investigates the finite-time output feedback control problem for dc-dc buck converter systems. By using the techniques of finite-time controller and finite-time convergent observer, a new fast voltage regulation control algorithm is designed which can guarantee that the output voltage converges to the reference voltage in the finite time. An inductive current convergent observers has been designed to estimate the unknown current in the finite time. Compared with the PI control algorithm, simulation results show that the proposed algorithm has a faster regulation performance under the condition of loadvariation and reference voltage change.

关键词： dc-dc buck converter Finite-time Control Output Feedback Control Inductive Current Observer

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Current-constrained Finite-time Control Algorithm for buck converter

Current-constrained Finite-time Control Algorithm for Buck C...

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第32届中国控制与决策会议

作者： Qingqiu Du Haibo Du Min Zhu Bo Yu Yingying Cheng Di Wu School of Electrical Engineering and Automation Hefei University of Technology School of Automation Southeast University

In this paper,the current-constrained problem is *** order to track the voltage to the reference voltage quickly,a finite-time control algorithm is ***,considering that when the voltage changes rapidly,the current in the circuit will increase,which will cause damage to the devices in the ***,a current-constraint algorithm must be applied to the *** controller designed in this paper can achieve stability in finite-time,and the correctness of the control algorithm is ***,the simulation is carried out to verify the dynamic and steady-state performance of the proposed method.

关键词： dc-dc buck converter Finite-time control Current-constrained

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