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Article
Publication date: 1 January 2006

Zbigniew Fedyczak, Leszek Frąckowiak and Maciej Jankowski

Aims to focus on steady state and transient state analysis of basic properties of new solution for a single‐phase serial AC voltage controller. Furthermore, simulation and…

570

Abstract

Purpose

Aims to focus on steady state and transient state analysis of basic properties of new solution for a single‐phase serial AC voltage controller. Furthermore, simulation and experimental test results of 3 kVA models are provided to confirm and verify the theoretical approach.

Design/methodology/approach

Presents a converter with auxiliary transformer and bipolar PWM AC matrix‐reactance chopper (MRC), based on Ćuk B2 topology. The MRC has the possibility of bipolar AC voltage conversion with magnitude of voltage transformation function greater than 1. The peak voltage detection method in the control circuit is applied to fast control of the load voltage changes. The steady state and transient state theoretical analysis based on averaged models of the presented controller is used. There is a four‐terminal description of the basic properties in the presented approach.

Findings

In the proposed solution only half the number of switches compared with the case of full bridge matrix chopper solution is used. The nominal load voltage can be obtained even for 50 per cent step‐down of the supply voltage.

Originality/value

Presents new topology and properties of single‐phase serial AC voltage controller.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 25 no. 1
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 December 2001

Michal Gwóźdź, Ryszard Porada and Leszek Fraockowiak

Presents a system capable of achieving optimal compensation (in real time) by elimination of differential current and employing power electronic controlled current sources. The…

419

Abstract

Presents a system capable of achieving optimal compensation (in real time) by elimination of differential current and employing power electronic controlled current sources. The functional block diagram and a description of the working principle are included. Simulation tests were carried out on current source and active compensation system. The results of simulation and experimental tests of prototype model of controlled current source and compensator confirm a considerable reduction of source current distortion at strong distortions of voltage and current of receiver, a fast response to step changes of load and good stability of its work.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 20 no. 4
Type: Research Article
ISSN: 0332-1649

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