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Current source cascaded H-bridge (CSCHB) inverters can be a good alternative to manage voltage, current and frequency in a medium-voltage load. The power quality achieved by this type of converters and their ability to boost the output voltage without the need of a DC / DC converter in the DC link, have drawn attention to it as a suitable alternative to be used as the interface between DC sources...
Nowadays the control of medium voltage motors has two main alternatives for its development: voltage source inverters (VSI); or current source inverters (CSI). The cascaded multilevel inverters derive from high voltage, high power quality and high reliability requirements in both development alternatives. Up to now, the cascaded multilevel converters have been implemented using voltage source power...
This paper presents a three-phase unified power-quality conditioner based on current source converters (CSC-UPQC), including the design guidelines of the key components, an appropriate control scheme, and a selection procedure of the dc current level. Particularly, the ridethrough capability criterion is used to define a minimum dc current level so that the CSC-UPQC achieves the same characteristics...
The Unified Power Quality Conditioner (UPQC) is a custom solution for power quality problems. The equipment corresponds to the back-to-back connection of a series and a shunt active filter, so the topology acquires the characteristics of both filters. It has the ability to compensate for voltage disturbances while improving the power quality for both the client and the distributor. In the present...
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