학술논문

Direct-coupled cascaded multilevel sag compensator
Document Type
Conference
Source
2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018) Power electronics Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual. 1:463-469 vol.1 2000
Subject
Power, Energy and Industry Applications
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Robotics and Control Systems
Signal Processing and Analysis
Computing and Processing
Transformers
Power quality
Energy storage
Topology
Voltage fluctuations
Protection
Thyristors
Costs
Inductance
Power engineering and energy
Language
ISSN
0275-9306
Abstract
Voltage sags (or dips) are the most common power quality problem. The aim of this paper is to propose a multilevel-cascaded converter, connected in series with the supply, which acts as a sag compensator. The converter is direct-coupled and eliminates the use of costly output filters and injection transformers. The converter operation and control techniques are discussed and confirmed with simulations and practical results.