An Enhanced Voltage Sag Compensation Scheme for Dynamic Voltage Restorer
Keywords:
Dynamic voltage restorers. Faults. Power conditioners, Power quality, Unbalanced conditions, Voltage source Inverter, SMPS, Micro-controller.Abstract
Voltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of
the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs). By definition, a
DVR is a controlled voltage source inserted between the network and a sensitive load through a booster transformer injecting
voltage into the network in order to correct any disturbance affecting a sensitive load voltage. This paper present the
Improving Voltage quality of Sensitive Load From voltage sags using dynamic Voltage Restorer. DVR is mean of series
compensation to mitigating the effect of voltage sag meanwhile the H Bridge Power converter topology has also become a work
horse topology in high power application. This paper present the detailed design of a close loop regulator to maintain the load
voltage in acceptable levels in a DVR. Using Transformer Coupled H-Bridge converter. This paper present System Operation
and controller design approaches, computer Simulation & single phase Dynamic Voltage Restorer Hardware Implementation.
