Topology Survey of DC-Side-Enhanced Passive Rectifier Circuits for Low-Harmonic Input Currents and Improved Power Factor
Conference: PCIM Europe 2015 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/19/2015 - 05/20/2015 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2015
Pages: 8Language: englishTyp: PDF
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Authors:
Makoschitz, M.; Ertl, H. (Vienna University of Technology, Institute of Energy Systems and Electrical Drives, Power Electronics Section, Gusshausstrasse 27-29, 1040 Wien, Vienna, Austria)
Hartmann, M. (Schneider Electric Power Drives GmbH, Vienna, Austria)
Abstract:
Passive diode bridge (B6) rectifiers are widely used in industry for three-phase AC-to-DC conversion due to simplicity of circuit and design, high efficiency as well as robustness and low cost. For applications which require high input current quality (low THDi and high power factor) active three-phase rectifiers have to be used which in general are dedicated systems fully replacing the passive rectifier stage. For specific applications (e.g., AC drives) now a concept is attractive which opens the opportunity that an existing B6 rectifier optionally can be upgraded to high quality mains currents if required. This paper provides a concise topology survey and proposes several new circuits regarding such DC-side located add-on options for standard B6 rectifiers. All proposed topologies (introduced and also new circuits) are based on the third harmonic injection principle. The most attractive concepts are analyzed in detail concerning injection inductor design, DC- link capacitor design and voltage/current stress of the required switching semiconductor devices. Measurements of a laboratory prototype finally illustrate good stationary and dynamic performance of the implemented system.