Advances in capacitor technology for modern power electronics

Clelland, I.W.; Price, Robert A.; Sarjeant, W.J.

doi:10.1109/modsym.2000.896186

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…However in this application, component reliability is also an extremely important factor. Since electrolytic capacitors have lower reliability compared to film capacitors [37], the latter ones stand out also because of a good combination of energy density and feasible quantities [38]. In the 2 kW rectifier prototype, two metallized polypropylene film capacitors from EPCOS B25620B1118K103 [39] are installed at the output of the rectifier prototype.…”

Section: Resultsmentioning

confidence: 99%

Design of Energy Control Method for Three-Phase Buck-Type Rectifier With Very Demanding Load Steps to Achieve Smooth Input Currents

Zhao

Molina

Silva

et al. 2016

IEEE Trans. Power Electron.

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Conventional three-phase rectifiers are controlled to achieve good power factor and low THD in the input. In the case of pulsating power loads, the fast dynamic response implies that the load pulses are reflected in the generator. These pulsating loads affect the life time operation of the generator, especially when it is not oversized (as in the case of aircraft applications). In order to smooth the power demanded from the generator, it is preferable to reduce the bandwidth of the output voltage controller for the rectifier but it affects its stability due to the fact that the right half plane (RHP) pole given by the negative impedance of a constant power load requires high bandwidth control loop to compensate it. In this paper, an energy control method is proposed that utilizes the energy stored in the output capacitor of the rectifier to control the output voltage of the rectifier. In such a way, the minimum bandwidth restriction imposed by the RHP pole of the power load is eliminated and the bandwidth of the voltage loop can be defined low enough to demand smooth power from the generator.

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Section: Resultsmentioning

confidence: 99%

Design of Energy Control Method for Three-Phase Buck-Type Rectifier With Very Demanding Load Steps to Achieve Smooth Input Currents

Zhao

Molina

Silva

et al. 2016

IEEE Trans. Power Electron.

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“…Thermal energy storage includes, among others, sensible heat storage, where thermal energy is stored or released by changing the temperature of a material without undergoing phase change, and latent heat storage, where energy is stored or released by changing the phase of a material (e.g., solid to liquid) without changing its temperature [7]. Electrical energy storage includes capacitors, where electrical energy is stored in an electric field in a dielectric material between two conductive plates, providing rapid energy release but lower energy density [8]; supercapacitors, where energy is stored electrostatically at the interface between electrodes and electrolytes based on the doublelayer capacitance effect, offering high power density and rapid charging/discharging [9]; and superconducting magnetic energy storage, where energy is stored in a magnetic field generated by superconducting coils, offering high efficiency and fast response times [10,11]. Electrochemical energy storage mainly includes rechargeable batteries, where chemical energy is stored and converted into electrical energy through chemical reactions [12], and redox flow batteries, where the electrochemical cells store energy in liquid electrolytes contained in separate tanks, allowing for scalable and long-duration storage [13].…”

Section: Introductionmentioning

confidence: 99%

Open-Circuit Voltage Variation in LiCoO2 Battery Cycled in Different States of Charge Regions

Barcellona,

Codecasa,

Colnago

et al. 2024

Energies

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Currently, the urgent needs of sustainable mobility and green energy generation are driving governments and researchers to explore innovative energy storage systems. Concurrently, lithium-ion batteries are one of the most extensively employed technologies. The challenges of battery modeling and parameter estimation are crucial for building reliable battery management systems that ensure optimal battery performance. State of charge (SOC) estimation is particularly critical for predicting the available capacity in the battery. Many methods for SOC estimation rely on the knowledge of the open-circuit voltage (OCV) curve. Another significant consideration is understanding how these curves evolve with battery degradation. In the literature, the effect of cycle aging on the OCV is primarily addressed through the look-up tables and correction factors applied to the OCV curve for fresh cells. However, the variation law of the OCV curve as a function of the battery cycling is not well-characterized. Building upon a simple analytical function with five parameters proposed in the prior research to model the OCV as a function of the absolute state of discharge, this study investigates the dependency of these parameters on the moved charge, serving as an indicator of the cycling level. Specifically, the analysis focuses on the impact of cycle aging in the low-, medium-, and high-SOC regions. Three different cycle aging tests were conducted in these SOC intervals, followed by the extensive experimental verification of the proposed model. The results were promising, with mean relative errors lower than 0.2% for the low- and high-SOC cycling regions and 0.34% for the medium-SOC cycling region. Finally, capacity estimation was enabled by the model, achieving relative error values lower than 1% for all the tests.

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Exploring the potential of construction-compatible materials in structural supercapacitors for energy storage in the built environment

Yousaf,

Khan,

Koç

2025

Cement and Concrete Composites

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Advances in capacitor technology for modern power electronics

Cited by 4 publications

References 7 publications

Design of Energy Control Method for Three-Phase Buck-Type Rectifier With Very Demanding Load Steps to Achieve Smooth Input Currents

Design of Energy Control Method for Three-Phase Buck-Type Rectifier With Very Demanding Load Steps to Achieve Smooth Input Currents

Open-Circuit Voltage Variation in LiCoO2 Battery Cycled in Different States of Charge Regions

Exploring the potential of construction-compatible materials in structural supercapacitors for energy storage in the built environment

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