Approach to integrated energy harvesting voltage source based on novel active TEG array system

Buzilo, Roman; Likhterov, Boris; Giterman, Robert; Levi, Itamar; Fish, Alexander; Belenky, A.

doi:10.1109/ftfc.2014.6828593

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…Approximate dimensions have been selected based on [7,8,17,23,31]. The thermoelectric couple consists of a pair of semiconductor materials of p-and n-types (p-leg and n-leg in the figure).…”

Section: Thermoelectric Couplementioning

confidence: 99%

Section: Sub-units' Simulationmentioning

confidence: 99%

“…All the pairs are normally divided into sub-units of several thousand pairs each, electrically connected in series. The groups can be interconnected in series or parallel, depending on the power requirements, [23]. In [17] it is demonstrated that thermoelectric pairs located at a large physical distance from each other are in slightly different temperature conditions.…”

Section: Sub-units' Simulationmentioning

confidence: 99%

“…This approach is convenient for designers of electrical converters for harvesters, such as maximum power point tracking, etc. Simulations of such a model can be performed using commonly available electrical circuit simulators such as PSPICE [23]. This method, with all its advantages, has proven itself in simulating traditional thermoelectric modules.…”

Section: Introductionmentioning

confidence: 99%

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Spatial Equivalent Circuit Model for Simulation of On-Chip Thermoelectric Harvesters

2020

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Interest in autonomous low-power energy sources has risen with the development and widespread use of devices with very low energy consumption. Interest in thermoelectric harvesters has increased against this background. Thermoelectric harvesters, especially harvesters on-chip, have peculiar properties related to the thermal route, thermal transients, and spatial temperature distribution within the chip. A behavioral model of the harvester is required for engineers to successfully develop voltage converters with maximum power point tracking and energy storage units. There are accurate models based on the finite element method, but these models are usually not compatible with simulators of electrical circuits, and therefore are not convenient for designers. Existing equivalent circuit models fit this requirement, but usually do not consider many parameters. This article proposes an original method that allows simulating spatial thermoelectric processes by analogy with the finite difference method, using electrical circuits simulations software. The study proposes a complete methodology for building the model and examples of simulations of one-, two- and three-dimensional problems, as well as examples of simulation of macro problems in the presence of external thermal and electrical devices, such as heatsink and electrical load.

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