Search results for "Three-phase inverter"

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An Adaptive Robust Predictive Current Control for Three-Phase Grid-Connected Inverters

2011

This paper presents an adaptive robust predictive current control (RPCC) for grid-connected three-phase inverters that exhibit zero steady-state current error. The error correction is achieved by means of an adaptive strategy that works in parallel with the deadbeat algorithm, therefore preserving the typical fast response of the predictive law. The resulting control adapts to any particular L or LCL filter by estimation of the resistive part of the filter. As a variety of the RPCC class of control, it offers the best tradeoff between robustness and speed. © 2009 IEEE.

EngineeringAdaptive controlThree-phase inverterGrid connected invertersElectric current controlElectric invertersTECNOLOGIA ELECTRONICAControl theoryRobustness (computer science)Active power filteringCurrent-controlled voltage source invertersFast responseElectrical and Electronic EngineeringActive filterAdaptive strategyActive filtersActive power filtering (APF)Power convertersbusiness.industryGrid-connectedPredictive current controlGridSteady-state currentsDeadbeat algorithmModel predictive controlCurrent-controlled voltage source inverter (VSI)Robust predictive current control (RPCC)Three-phaseControl and Systems EngineeringRobust controlLCL filtersError detection and correctionbusinessIEEE Transactions on Industrial Electronics
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Four-Level Three-Phase Inverter With Reduced Component Count for Low and Medium Voltage Applications

2021

This paper proposes a novel three-phase topology with a reduced component count for low- and medium-voltage systems. It requires three bidirectional switches and twelve unidirectional switches for producing four-level voltages without using flying capacitors or clamping diodes, reducing the size, cost, and losses. Removing flying capacitors and clamping diodes allows it to simplify control algorithms and increase the reliability, efficiency, and lifetime. A modified low-frequency modulation (LFM) scheme is developed and implemented on the proposed topology to produce a staircase voltage with four steps. Further, a level-shifted pulse width modulation (LSPWM) is used to reduce the filter siz…

General Computer ScienceComputer scienceTopology (electrical circuits)02 engineering and technology01 natural scienceslaw.inventionlawthree-phase inverters0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectronic engineeringGeneral Materials Sciencemultilevel invertersDiode010302 applied physics020208 electrical & electronic engineeringGeneral EngineeringDC-AC convertersClampingControllabilityCapacitorVDP::Teknologi: 500low and medium voltage applicationsFilter (video)lcsh:Electrical engineering. Electronics. Nuclear engineeringfour-level inverterslcsh:TK1-9971Pulse-width modulationVoltage
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