A FPGA-Based Generalized Pulse Width Modulator for Three-Leg Center-Split and Four-Leg Voltage Source Inverters
- 2 May 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 23 (3), 1472-1484
- https://doi.org/10.1109/tpel.2008.921103
Abstract
In this paper, a generalized pulse width (PW) modulator is proposed which can control three-leg center-split voltage source inverters (VSIs) and four-leg VSIs from two-level to multilevel topologies. VSIs with a neutral wire connection are important for power electronics applications in three-phase four-wire systems, such as active power filters and uninterruptible power supplies. For medium and large capacity applications, a multilevel three-phase four-wire VSI is a good alternative to a two-level one. However, implementing the pulse width modulation for three-phase four-wire VSIs involves complex calculations, and control algorithms differ for VSIs of different levels and topologies. The proposed generalized PW modulator controls VSIs based on voltage-second approximation, but its implementation is much easier than space vector modulation. Field programmable gate array has been chosen to implement the PW modulator due to its fast prototyping, simple hardware, and software design. Simulation and experimental results are provided. The proposed generalized PW modulator was also applied to the control system of three-phase four-wire active power filters to show its validity.Keywords
This publication has 22 references indexed in Scilit:
- Application of a three-level NPC inverter as a three-phase four-wire power quality compensator by generalized 3DSVMIEEE Transactions on Power Electronics, 2006
- Modeling and control of DSTATCOM for three-phase, four-wire distribution systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A carrier-based PWM method for three-phase four-leg voltage source convertersIEEE Transactions on Power Electronics, 2004
- A 3-D space vector modulation generalized algorithm for multilevel convertersIEEE Power Electronics Letters, 2003
- Concise modulation strategies for four-leg voltage source invertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Novel five-level inverter PWM control in 3-phase 4-wire system for power qualityPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Cylindrical coordinate control of three-dimensional PWM technique in three-phase four-wired trilevel inverterIEEE Transactions on Power Electronics, 2003
- Three-dimensional pulse-width modulation technique in three-level power inverters for three-phase four-wired systemIEEE Transactions on Power Electronics, 2001
- Harmonic and reactive power compensation based on the generalized instantaneous reactive power theory for three-phase four-wire systemsIEEE Transactions on Power Electronics, 1998
- Three-phase four-wire shunt active filter control strategiesIEEE Transactions on Power Electronics, 1997