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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...
A discrete-time linear control scheme for a multilevel three-phase Unified Power Quality Conditioner (UPQC) based on Single-Phase Power Cells is presented. The multi-variable, non-linear, and coupled features of these topologies make the control strategy design a difficult task. Controlling this kind of systems with mono-variable linear controllers - as proposed in this work - presents significant...
The shunt active filters are based on power converters driven to generate a current waveform injected in parallel to the system in order to compensate harmonics or to supply reactive power. Several topologies have been studied based either on voltage-source converters (VSC) or current-source converters (CSC), from the standpoint of power topologies and from the point of view of control strategies...
The Custom Power Devices provide compensation capabilities to mitigate Power Quality problems related with harmonics and reactive power. In this work, two different reactive power and dc-voltage linear control schemes are developed for the DSTATCOM. The proposed control schemes are systematically designed and finally implemented on a DSP based system. Consequently, the design procedure is carried...
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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