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Active Damping of LCL Filter without Capacitor Voltage Sensors for Three Phase PWM Inverter
- Issue Date
- 2013
- Publisher
- IEEE
- Keywords
- SVPWM Inverter; Active damping; MRAS(Model Reference Adaptive System) Observer; LCL filter
- Citation
- 39TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2013), pp.7129 - 7133
- Journal Title
- 39TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2013)
- Start Page
- 7129
- End Page
- 7133
- ISSN
- 1553-572X
- Abstract
- In this paper, new sensorless active damping method of the grid-connected LCL filter for a three-phase PWM inverter is proposed. The resonance component of capacitor voltage of LCL filter is observed by a simple MRAS (Model Reference Adaptive System) observer without additional sensors or circuits. The active damping is implemented by feed-forward compensation of the observed capacitor voltage for current controller. The validity of the proposed method is verified by the simulation and experiment.
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Related Researcher
- Chung, Gyo Bum
- Science & Technology (Department of Electronic & Electrical Convergence Engineering)