Model-Based Development of DC-DC Converters with Wide Operation Range and High Dynamics
Seiten
- Keine Verlagsinformationen verfügbar
- Artikel merken
For the development of photovoltaic (PV) inverters, electrical drives and E-mobiles high-performance DC power supplies are required for emulating batteries, fuel cells, solar arrays, etc. For such energy source simulators the specifications are extreme allowing a wide operation range and high dynamics besides the basic requirements in terms of efficiency, harmonic distortion and power factor. Especially in order to develop and test PV inverters with maximum power point tracking (MPPT) the output characteristics of solar arrays are to be emulated with high dynamical performance.
Current solutions of DC power supplies often base on the phase-shifted full bridge (PSFB) topology, since it is well supported by application notes, integrated circuits and a multitude of publications. Due to the high turn-off current and circulating current during freewheeling, it is difficult to operate the PSFB with higher switching frequency without increasing the converter losses. This implies using state-of-the-art silicon semiconductor devices does not enable reduction of the output filter for enhancing the dynamical performance of the PSFB.
The primary objective of this work is to select a most suitable topology for a DC power supply, develop and optimize it to facilitate a wide operation range and high dynamics. Therefore a model-based development procedure is set up. Quantitative study of the current solution indicates three potential solutions: Using of multi-level topologies, interleaved multi-phase topologies and resonant converters. Model-based quantitative comparison of all potential topologies yields the series-parallel resonant converter with LC output filter (SPRC-LC) as the most qualified solution.
The requirement of an extreme wide operation range can be served best by using an optimized modulation (OM) strategy, which combines a control of switching frequency and duty ratio. A model-based development and optimization of the SPRC-LC under OM is performed in this contribution and includes:
- Steady-state modeling and converter design of the SPRC-LC under OM
- Implementation of a fully digital OM control unit
- Modeling of converter dynamics under OM and control design
The second objective of this work is to build a development environment to enable a long-term utilization of research results achieved in this work, which consists of two parts: The first part is a computer-aided analysis (CAA) and design (CAD) software package for design and optimization of phase-shifted PWM converters and resonant converters; the second part is a real-time simulator, which enables testing the total control unit of the SPRC-LC in software-in-the-loop (SiL) or hardware-in-the-loop (HiL) mode without need to build the physical power converters. The development environment should on the long-term facilitate a considerable reduction of cost, time to market and required design expertise for future developments.
Current solutions of DC power supplies often base on the phase-shifted full bridge (PSFB) topology, since it is well supported by application notes, integrated circuits and a multitude of publications. Due to the high turn-off current and circulating current during freewheeling, it is difficult to operate the PSFB with higher switching frequency without increasing the converter losses. This implies using state-of-the-art silicon semiconductor devices does not enable reduction of the output filter for enhancing the dynamical performance of the PSFB.
The primary objective of this work is to select a most suitable topology for a DC power supply, develop and optimize it to facilitate a wide operation range and high dynamics. Therefore a model-based development procedure is set up. Quantitative study of the current solution indicates three potential solutions: Using of multi-level topologies, interleaved multi-phase topologies and resonant converters. Model-based quantitative comparison of all potential topologies yields the series-parallel resonant converter with LC output filter (SPRC-LC) as the most qualified solution.
The requirement of an extreme wide operation range can be served best by using an optimized modulation (OM) strategy, which combines a control of switching frequency and duty ratio. A model-based development and optimization of the SPRC-LC under OM is performed in this contribution and includes:
- Steady-state modeling and converter design of the SPRC-LC under OM
- Implementation of a fully digital OM control unit
- Modeling of converter dynamics under OM and control design
The second objective of this work is to build a development environment to enable a long-term utilization of research results achieved in this work, which consists of two parts: The first part is a computer-aided analysis (CAA) and design (CAD) software package for design and optimization of phase-shifted PWM converters and resonant converters; the second part is a real-time simulator, which enables testing the total control unit of the SPRC-LC in software-in-the-loop (SiL) or hardware-in-the-loop (HiL) mode without need to build the physical power converters. The development environment should on the long-term facilitate a considerable reduction of cost, time to market and required design expertise for future developments.
| Erscheint lt. Verlag | 29.5.2014 |
|---|---|
| Reihe/Serie | Berichte aus der Elektrotechnik |
| Sprache | englisch |
| Maße | 148 x 210 mm |
| Gewicht | 287 g |
| Einbandart | Paperback |
| Themenwelt | Technik ► Elektrotechnik / Energietechnik |
| Schlagworte | DC-DC power converters • high dynamics • Model-Based Development • Wide Operation Range |
| ISBN-10 | 3-8440-2785-8 / 3844027858 |
| ISBN-13 | 978-3-8440-2785-3 / 9783844027853 |
| Zustand | Neuware |
| Haben Sie eine Frage zum Produkt? |
Mehr entdecken
aus dem Bereich
aus dem Bereich
DIN-Normen und Technische Regeln für die Elektroinstallation
Buch | Softcover (2023)
Beuth (Verlag)
CHF 119,95
Kolbenmaschinen - Strömungsmaschinen - Kraftwerke
Buch | Hardcover (2023)
Hanser (Verlag)
CHF 69,95
