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In recent years, the use of active rectifiers has become common to correct problems as low power factor and harmonics in the AC mains, besides it can compensate the DC bus before load changes. Some of these rectifiers are also able to compensate voltage sags. Power losses studies have been developed for this kind of topologies; however, the behavior of these is not mentioned under voltage sags conditions...
Usually, active rectifiers are used as power factor compensators besides to its natural ability to maintain load regulation in the DC bus. Since the AC mains can be affected by voltage sags, is convenient to extend the Single- Phase Active Multi-Level Rectifier functions to have ride- through voltage sag capability. It is important to know the safety operation limits under all possible circumstances...
Voltage sags are one of the most important power quality problems, affecting industrial and commercial customers. Industrial processes are particularly sensitive to relatively minor voltage sags. Utilities have been improved their fault-recovery capabilities, however it is still impossible to eliminate faults in the systems. Therefore, customers will have to improve the ride-through capability of...
Voltage sags are one of the most important power quality problems, affecting industrial and commercial customers. These events are usually associated with a fault somewhere on the supplying power system. Industrial processes are particularly sensitive to relatively small voltage sags; therefore, customers will have to improve the ride-through capability of the system equipment in their facilities...
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