Two-Degree-of-Freedom Robust Temperature Control of Peltier Device Based on Heat Disturbance Observer

Morimitsu, Hidetaka; Katsura, Seiichiro

doi:10.1541/ieejias.131.967

Cited by 15 publications

(11 citation statements)

References 15 publications

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“…Temperature control technique using a quality of a material was also proposed (4) . A heat disturbance observer (HDOB) was proposed and it is possible to conduct robust temperature control against a disturbance (5) . Furthermore, the method of heat flow control has been studied (6) .…”

Section: Intoroductionmentioning

confidence: 99%

Variable Heat Disturbance Observer for Control of Peltier Device

Osawa

Katsura

2019

IEEJ Journal IA

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A thermoelectric device called a Peltier device is widely used in many fields. For example, the device is used for a cooling system such as in systems consisting of medical reagent coolants and refrigerators. However, controlling the device is difficult because thermal characteristics of the device change depending on its temperature. Notably, the amount of heat flow generated from the device varies with the amount of current applied. Therefore, a thermal nonlinear behavior has to be considered in a thermal model. Most studies do not consider the nonlinear characteristics and treat the device as a linear system. Therefore, robustness against disturbance is not high because of modeling error. This paper presents a heat disturbance observer considering the nonlinear characteristics of a Peltier device. Variable parameters depending on the temperature and current of the device are used, and a variable heat disturbance observer is proposed. The thermal model used in the proposed observer includes a few nonlinear elements such as Joule heat and heat flow inside the device. The objective of this study is to improve the response of a Peltier device. Some experiments were conducted to verify the validity of the proposed method. Besides, the effect of modeling error on the stability of the observer is discussed.

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Section: Intoroductionmentioning

confidence: 99%

Variable Heat Disturbance Observer for Control of Peltier Device

Osawa

Katsura

2019

IEEJ Journal IA

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“…In the studies by Morimitsu and Katsura, 12,23 this thermal model has been used. We also used this thermal model.…”

Section: Modeling Of Thermal Systemmentioning

confidence: 99%

“…The nominal values of the thermal capacitance and Seebeck coefficient are used. 12 And a, b, c, and h can be calculated from above parameters. The system parameters and other experimental parameters are listed in Table 1.…”

Section: Simulation and Experimentsmentioning

confidence: 99%

“…The system parameters and other experimental parameters are listed in Table 1. 2,12 To have a fair comparison, first the control inputs of three algorithms have the same saturation limit and, second, these three methods all achieve relatively good performances by regulating the parameters of each control algorithm.…”

Section: Simulation and Experimentsmentioning

confidence: 99%

“…To estimate the heat disturbances, DOB has been employed for thermal system in the studies by Morimitsu and Katsura. 12,23 However, in the presence of fast timevarying heat disturbances, the disturbances of thermal system cannot be rejected by PI and feedback linearization (FL) þ DOB effectively. The reason is that PI control is a feedback control method which attenuates disturbances based on the tracking error in a relatively slow way.…”

Section: Introductionmentioning

confidence: 99%

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Generalized proportional integral observer–based composite control method for robotic thermal tactile sensor with disturbances

Chen

Wang

2017

International Journal of Advanced Robotic Systems

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In this article, we discuss the temperature regulation problem of robotic thermal tactile system under unknown time-varying disturbances. In order to improve the disturbance rejection property of the thermal system, a composite controller is presented. First, a generalized proportional integral observer is introduced to estimate the system disturbances, which generally include model uncertainties and external disturbances. Second, a feedback control is designed using feedback linearization control technique. A composite temperature controller is obtained as a composition of feedback linearization-based controller plus feed-forward compensation based on generalized proportional integral observer. A rigorous analysis shows that the proposed scheme can enhance the disturbance rejection property of the thermal system. Simulation and experimental comparisons with two other control methods, that is, the composite control method with feedback linearization-based control plus feed-forward compensation based on disturbance observer and the proportional integral control method, are given to verify that the proposed method exhibits a much better disturbance rejection performance.

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Distributed thermal conductance control for sensing and rendering thermal sensation on the palm

Osawa

Katsura

2018

2018 IEEE 15th International Workshop on Advanced Motion Control (AMC)

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Two-Degree-of-Freedom Robust Temperature Control of Peltier Device Based on Heat Disturbance Observer

Cited by 15 publications

References 15 publications

Variable Heat Disturbance Observer for Control of Peltier Device

Variable Heat Disturbance Observer for Control of Peltier Device

Generalized proportional integral observer–based composite control method for robotic thermal tactile sensor with disturbances

Distributed thermal conductance control for sensing and rendering thermal sensation on the palm

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