Voltage source inverters use large electrolytic capacitors in order to decouple the energy between the utility and the load, keeping the DC link voltage constant. Decreasing the capacitance reduces the distortion in the inverter input current but this also affects the load with low-order harmonics and generate disturbances at the input voltage. This paper applies the P+RES controller to solve the challenge of regulating the output current by means of controlling the magnitude of the current space vector, keeping it constant thus rejecting harmonic disturbances that would otherwise propagate to the load. This work presents a discussion of the switching and control strategy. © 2011 IEEE.
Resonant (P+RES) controller applied to voltage source inverter with minimum DC link capacitor
28.12.2011
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
voltage source inverter , DC power transmission , space vector , Electric current control , Electrolytic capacitors , resonant controller , Input current , reduced dc link capacitor , Input voltages , Controllers , p+res , Control strategies , Low order harmonics , Dc link capacitor , Power electronics , DC-link voltages , Vector spaces , Harmonic disturbances , Output current , current control
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