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1

Active power decoupling topology for AC-DC and DC-AC single-phase systems with decoupling capacitor minimization

Stawiarski Ł., Piróg S.

Archives of Electrical Engineering

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2018

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Vol. 67, nr 1

193--205

EN

Passive power decoupling in single-phase DC-AC and AC-DC systems usually requires usage of electrolytic capacitors. To minimize converter volume, increase reliability, robustness and to eliminate ripple power effect on the DC side, new solutions for Active Power Decoupling are proposed. In this paper a novel Active Power Decoupling topology for low power single-phase AC-DC and DC-AC converters is presented. The proposed topology is based on well-known boost and buck-boost topologies but with a completely different control scheme. The topology description with a complete control algorithm is presented. The proposed APD solution is verified by experimental results of a 450 W converter in AC-DC mode and a 320 W converter in DC-AC mode.

2

A current decomposition-based method for computationally efficient implementation of power resolution meters in non-sinusoidal single-phase systems

Balci M. E., Hocaoglu M. H.

Metrology and Measurement Systems

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2013

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Vol. 20, nr 2

263--274

EN

For non-sinusoidal single-phase systems, the classical apparent power has been divided into various components using different techniques. These power resolutions generally aim at to provide a tool for the accurate determination of the maximum power factor achievable with a passive compensator and to measure the load's nonlinearity degree. This paper presents a current decomposition-based methodology that can be employed for computationally efficient implementation of the widely recognized non-sinusoidal power resolutions. The proposed measurement method and the original expressions of the power resolutions are comparatively evaluated by considering their computational complexity. The results show that the proposed method has a significant advantage in terms of computational efficiency for the simultaneous measurements of the powers when compared with the original expressions. Finally, in this paper, a PC-based power meter is developed using the proposed measurement method via the LabVIEW programme.

3

Reference to output frequency compensation of bidirectional Ćuk DC-DC converter

Bury W. E., Czarkowski D., Dzieża J.

Elektronika : konstrukcje, technologie, zastosowania

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2010

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Vol. 51, nr 12

112-116

EN

A bidirectional Ćuk converter with output voltage tracking capabilities was designed with a 110 Hz reference to output compensation signal. The converter is intended to drive piezoceramic actuators. A linear controller was designed in the frequency domain. Saber and MATLAB are the software used for design, simulations and analysis. Experimental results are in a good agreement with theoretical and simulated predictions.

PL

W pracy przedstawiono projekt dwustronnego przetwornika Ćuk z właściwością śledzenia napięcia z częstotliwością 110 Hz odnoszenia do wyjścia kompensyjnego sygnału. Zadaniem przetwornika jest sterowanie wzmacniaczami piezoelektronicznymi. Sterownik liniowy został zaprojektowany w dziedzinie częstotliwości. Pakiety Saber i MATLAB użyto w projektowaniu, symulacji i analizie układu. Wyniki doświadczalne są zgodne z przewidywaniami teoretycznymi i symulacyjnymi.