An Input Current Feedback Method to Mitigate the DC-Side Low-Frequency Ripple Current in a Single-Phase Boost Inverter

Abeywardana, Damith B. Wickramasinghe; Hredzak, Branislav; Agelidis, Vassilios G.

doi:10.1109/tpel.2015.2473170

Cited by 72 publications

(25 citation statements)

References 26 publications

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“…Figure 2 depicts a comparison between signals obtained from numeric evaluation of Equations (7)- (9). Although a higher number of harmonics can improve the results, solutions given by Equations (8) and 9are acceptably good.…”

Section: Fundamentals Of the Performance Improvementmentioning

confidence: 99%

“…In the grid-connected case, the control of the inverter forces the shape of not only the output voltage, but also the current to inject the generated power into the grid. This application of the boost inverter was explored by Angelidis and Vassilos et al in [9] using a cascade-control scheme that involved a loop compensation of the nonlinear gain of each boost cell and then provided the reference of the inner loops that affected the inductor currents. Similar to the stand-alone case, the enforcement of the input current to be simultaneously constant with the primary control objective implies an adjustment of the stationary behavior of the converter variables.…”

Section: Introductionmentioning

confidence: 99%

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Double Sliding-Surface Multiloop Control Reducing Semiconductor Voltage Stress on the Boost Inverter

López-Santos

García

2020

Applied Sciences

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Sliding-mode control (SMC) has been successfully applied to boost inverters, which solves the tracking problem of imposing sinusoidal behavior to the output voltage despite the coupled or decoupled operation of both boost cells in the converter. Most of the results reported in the literature were obtained using the conventional cascade-control structure involving outer loops that generate references for one or two sliding surfaces defined using linear combinations of inductor currents and capacitor voltages. As expected, all proposed methods share the inherent robustness and insensitivity to the uncertainties of SMC, which are the reasons why one of the few comparison criteria between them is the simplicity of their implementation that is evaluated according to the required measurements and mathematical operations. Furthermore, the slight differences between the obtained dynamic performances do not allow a clear distinction of the best solution. This study presents a new SMC approach applied to a boost inverter in which two boost cells are independently commutated. Each of these boost cells integrates an outer loop, enforcing the tracking of harmonic-enriched waveforms to the capacitor voltage. Although this approach increases by two the number of measurements and requires multiloop controllers, it allows effective alleviation of the semiconductor voltage stress by reducing the required voltage gain. A complete analytical study using harmonic balance technique allows deducing a simplified model allowing to obtain a PI controller valid into to the whole set of operation conditions. The several simulation results completely verified the potential of the control proposal and the accuracy of the employed methods.

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Section: Fundamentals Of the Performance Improvementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Double Sliding-Surface Multiloop Control Reducing Semiconductor Voltage Stress on the Boost Inverter

López-Santos

García

2020

Applied Sciences

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“…Thus, in the future UPS systems, the current ripple should be suppressed in order to protect the batteries and ensure the reliability and performance of the system. In the recent years, multiple studies have attempted to mitigate the double-frequency current ripple on the DC side of singlephase AC/DC converters [27,[36][37][38][39][40][41][42][43][44][45][46][47]. Their solutions are broadly classified into passive decoupling and active decoupling techniques.…”

Section: Online Ups Systemsmentioning

confidence: 99%

A Digital Control System for UPS Systems With Smart-Grid Capability

Mardani

Falconar

Shafiei

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

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“…During recent decades, distributed power generation and storage technologies have been increasingly considered, such as distributed solar farms and large-scale battery energy storage [1][2][3]. In order to interface generated power to the national grid, high voltage grid-connected inverters have been widely used in those distributed generation systems.…”

Section: Introductionmentioning

confidence: 99%

A hybrid wireless PLL for phase shift control based maximum efficiency point tracking in resonant wireless power transmission systems

Zhao

Gladwin

Stone

2017

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

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The application of Wireless Power Transfer (WPT) systems is primarily limited by its energy transfer efficiency. For modern WPT that utilises Strongly Coupled Magnetic Resonances (SCMR), which transfers energy by using the mutual inductance between coils, a higher efficiency can be achieved compared with a conventional air-core transformer module. An SCMR normally works at a desired frequency which is typically the self-resonant frequency of the receiver. However, this frequency varies during system operation where a changing environment, moving coil positions and variable loads may occur. In this paper, a hybrid wireless Phase Lock Loop (PLL) is proposed to lock the phase difference between the WPT's transmitting current and receiving voltage, at which point the system achieves maximum efficiency. A prototype WPT system is built verifying that the proposed wireless PLL effectively controls the wireless power system and operates at optimal frequencies under varying conditions.

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An Input Current Feedback Method to Mitigate the DC-Side Low-Frequency Ripple Current in a Single-Phase Boost Inverter

Cited by 72 publications

References 26 publications

Double Sliding-Surface Multiloop Control Reducing Semiconductor Voltage Stress on the Boost Inverter

Double Sliding-Surface Multiloop Control Reducing Semiconductor Voltage Stress on the Boost Inverter

A Digital Control System for UPS Systems With Smart-Grid Capability

A hybrid wireless PLL for phase shift control based maximum efficiency point tracking in resonant wireless power transmission systems

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