We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Analysis and improvement of performance in LCL filter-based PWM rectifier/inverter application using hybrid damping approach.
- Authors
Mukherjee, Nilanjan; De, Dipankar
- Abstract
A hybrid passive-active damping solution with improved system stability margin and enhanced dynamic performance is proposed for high power grid interactive converters. In grid connected active rectifier/inverter application, line side LCL filter improves the high frequency attenuation and makes the converter compatible with the stringent grid power quality regulations. Passive damping though offers a simple and reliable solution but it reduces overall converter efficiency. Active damping solutions do not increase the system losses but can guarantee the stable operation up to a certain speed of dynamic response which is limited by the maximum bandwidth of the current controller. This paper examines this limit and introduces a concept of hybrid passive-active damping solution with improved stability margin and high dynamic performance for line side LCL filter based active rectifier/inverter applications. A detailed design, analysis of the hybrid approach and trade-off between system losses and dynamic performance in grid connected applications are reported. Simulation and experimental results from a 10 kVA prototype demonstrate the effectiveness of the proposed solution. An analytical study on system stability and dynamic response with the variations of various controller and passive filter parameters is presented.
- Subjects
DAMPING (Mechanics); PULSE width modulation inverters; PULSE width modulation rectifiers; HYBRID systems; ELECTRIC currents; PERFORMANCE evaluation
- Publication
IET Power Electronics (Wiley-Blackwell), 2013, Vol 6, Issue 2, p309
- ISSN
1755-4535
- Publication type
Article
- DOI
10.1049/iet-pel.2012.0032