A Single-Stage Solid-State Transformer for PWM AC Drive With Source-Based Commutation of Leakage Energy
- 30 April 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 30 (3), 1734-1746
- https://doi.org/10.1109/tpel.2014.2320996
Abstract
A solid-state transformer is a three-phase ac/ac converter with a high-frequency transformer. Due to advanced features like high power density, on demand var support and frequency regulation, solid-state transformer is an enabling technology for the modern power distribution system. It can also find application in high-power-density motor drives. The single-stage solid-state transformer considered in this paper is capable of bidirectional power flow and open loop power factor correction. This topology uses a minimum amount of copper and has relatively few semiconductor switches. One major problem in this converter is the commutation of leakage energy which results in power loss, reduction in switching frequency, loss of output voltage, and additional common-mode voltage switching. This paper presents a source-based commutation strategy along with a novel modulation technique resulting in elimination of additional snubber circuits, minimization of the frequency of leakage inductance commutation, recovery of the leakage energy, and soft switching of the output converter. The topology and its proposed control have been analyzed. Simulation and experimental results confirm the operation.Keywords
This publication has 40 references indexed in Scilit:
- A New SVM Method for an Indirect Matrix Converter With Common-Mode Voltage ReductionIEEE Transactions on Industrial Informatics, 2013
- Modulation Strategies to Reduce Common-Mode Voltage for Indirect Matrix ConvertersIEEE Transactions on Industrial Electronics, 2011
- Power electronic transformer with reduced number of switches: Analysis of input clamp circuit and a modulation strategy to eliminate input snubber requirementPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- A power electronic transformer for three phase PWM AC/AC drive with loss less commutation and common-mode voltage suppressionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- High-frequency transformer-link three-level inverter drive with common-mode voltage elimination2008 IEEE Power Electronics Specialists Conference, 2008
- New modulation method for matrix convertersIEEE Transactions on Industry Applications, 2006
- A three-phase AC/AC high-frequency link matrix converter for VSCF applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Matrix converters: a technology reviewIEEE Transactions on Industrial Electronics, 2002
- High-frequency link DC/AC converter with suppressed voltage clamp circuits-naturally commutated phase angle control with self turn-off devicesIEEE Transactions on Industry Applications, 1996
- Space vector modulated three-phase to three-phase matrix converter with input power factor correctionIEEE Transactions on Industry Applications, 1995