Considerations on the use of a MPPT circuit for a thermoelectric generator

Trip, Nistor Daniel; Şchiop, Adrian; Burca, Adrian

doi:10.1109/emes.2017.7980427

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…Similar to solar photovoltaic technology, TEGs can be arranged in parallel and series to increase the overall terminal voltage and output power. Therefore, most technological advancement in photovoltaic such as boost technology [18] and maximum power point tracking (MPPT) [19], [20] are already applied in TEG for optimized performance.…”

Section: Teg Implementations and Technologiesmentioning

confidence: 99%

Initial Development of an Electrical Power Generator by using Thermoelectric Generator, Focal Lens and Underground Heat Dissipation System

Bahrin

Jaafar

2018

IJECE

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<a name="OLE_LINK28"></a><a name="OLE_LINK27"></a><span>Electrical energy is important in various developments to ensure global stability. However, most electrical energy sources are non-renewable and these sources are expected to be depleted in the near future. In order to solve this problem, research on renewable energy sources are intensified and thermoelectric generator (TEG) is one of the potential solutions. TEG can generate electricity if the there is a temperature difference between the hot end and cold end of its plate and it is widely used in various applications, ranging from high temperature of a steam generator until to the lowest temperature of a human body. The initial development of this work focuses on the electrical power generator design by using focal lens to focus sunlight, a form of renewable energy, on the TEG hot end and also underground heat dissipation system on the cold end to create temperature difference. The initial results showed that the amount of power produced by the system is quite small but reasonable due to the type of TEGs used. However, the heat dissipation system showed a promising development due to its non-dependency on external energy to expel heat from the cold side</span><span>.</span>

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Section: Teg Implementations and Technologiesmentioning

confidence: 99%

Initial Development of an Electrical Power Generator by using Thermoelectric Generator, Focal Lens and Underground Heat Dissipation System

Bahrin

Jaafar

2018

IJECE

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“…Scholars have conducted studies on thermoelectric materials, seeking those with high figure-of-merit ZT values, high electrical conductivity, and low thermal conductivity, with the hope of improving the conversion efficiency of thermoelectric power generation through new materials [3][4]. Additionally, some researchers have approached from a macro perspective, using simulation methods to study the compatibility between the output resistance of thermoelectric generator arrays and the input of switchmode power supplies [5]. Wu et al developed a computational model for thermoelectric power generation units, conducting simulation analyses on their internal temperature field distribution and power generation characteristics [6].…”

Section: Introductionmentioning

confidence: 99%

An energy management strategy for thermoelectric power generation system

Liang,

Wang,

Wang

2024

J. Phys.: Conf. Ser.

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To enhance the output power of thermoelectric generation, a strategy for the energy control of the thermoelectric power generation system is proposed, which involves the rational control and allocation of its output energy. The system includes a thermoelectric battery, DCDC converter, controller, storage battery, and DC load. The system completes energy control based on the relationship between the power generation and load power. The system adopts the maximum power point tracking (MPPT) algorithm, which obtains the maximum output power of the thermoelectric battery by changing the duty cycle of the converter, thus improving the output power and working efficiency of the thermoelectric power generation system. To protect the storage battery and extend its service life, the system adopts a charging management method that combines MPPT charging, constant current charging, and constant voltage charging, making it more scientific and reasonable. Finally, the feasibility and effectiveness of the proposed energy control management strategy are verified through actual experimental results.

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“…[10] have presented an improved version of the study in [3] including their model with the performance parameters for separate TEG and TEC blocks. Some other studies about using DC-DC converters with TEG and performing variable load conditions for determining TEG characteristics are [11], [12], [13], [14], [15], [16], and [17]. A comparison of some MPPT techniques has been presented in [18].…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Modeling of Thermoelectric Module Using MATLAB/Simulink for Circuit Simulations

2022

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This paper presents a complete model for thermoelectric modules (TEMs) in order to be used in circuit simulations in MATLAB/Simulink software. The purpose of this study is to develop a single block like other circuit elements in the Simulink library by combining both thermoelectric generator (TEG) and thermoelectric cooler (TEC) module parameters and their operations. Since TEG and TEC are both thermoelectric devices, mostly whose main material, such as Bi 2 Te 3 , is the same for similar temperature ranges, a TEG can be operated as TEC and vice versa a TEC can be operated as TEG. In some systems, such as PV-thermoelectric (TE), fuel cell-TE, and battery temperature management of electric vehicles, the modules can be used in both modes. Also, in some cases of these systems, sometimes the TEM may need to be operated as a generator, and sometimes as a cooler. The bidirectional operation of the TEM is a costsaving approach since the 2 types of TEMs are not needed to be installed together. This paper proposes a novel model whereas the studies up to date in the literature have not been fully compatible with the bidirectional usage of the modules. The proposed model deals with the polarities of both the thermal and the electrical ports of the TEM in order to decide the mode of operation, that is TEG or TEC. Maximum parameters and performance parameters for both TEG and TEC operations are included in the module block so as to observe and control the device for desired operating conditions. It is seen that the simulations with the temperature-dependent parameters have given very close results to the graphics of the datasheet. However, simulations in which the Thomson heat isn"t ignored have more deviations compared to the datasheet. Moreover, the simulations with the constant material properties have given better results than the Thomson heat included ones in the cases of the higher ∆T levels. While ∆T is 10 °K, COP max without the Thomson heat has been found as 3.399 which is the same as the datasheet. Meanwhile, COP max with the Thomson heat has been found as 3.7147, and COP max with the constant properties has been found as 3.8057. However; while ∆T is 50 °K, COP max is 0.247 without the Thomson heat which is the same as the datasheet, but COP max is 0.341 with the Thomson heat, and COP max is 0.268 with constant material properties. In addition, it is shown that, under variable polarities of thermal and electrical ports, bidirectional operation of the TEM is successfully achieved and the TEM is operated as both TEG and TEC in the same simulation.

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Considerations on the use of a MPPT circuit for a thermoelectric generator

Cited by 5 publications

References 7 publications

Initial Development of an Electrical Power Generator by using Thermoelectric Generator, Focal Lens and Underground Heat Dissipation System

Initial Development of an Electrical Power Generator by using Thermoelectric Generator, Focal Lens and Underground Heat Dissipation System

An energy management strategy for thermoelectric power generation system

Bidirectional Modeling of Thermoelectric Module Using MATLAB/Simulink for Circuit Simulations

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