Digital Control of a Three-Phase Four-Leg Inverter under Unbalanced Voltage Conditions
Language
EN
Communication dans un congrès
This item was published in
EPE 2007, EPE 2007, 2007-10-02, Aalborg. 2007p. 01-10
English Abstract
In this paper, the implementation of an innovative inverter control strategy based on the symmetrical components is presented. Symmetrical components of the inverter output voltage and current are decomposed into dq DC ...Read more >
In this paper, the implementation of an innovative inverter control strategy based on the symmetrical components is presented. Symmetrical components of the inverter output voltage and current are decomposed into dq DC quantities to control a three-phase four-leg inverter. This kind of inverter can be a good choice for the applications with hybrid power system based on renewable energy used to supply unbalanced loads. The addition of a fourth leg provides an extra degree of freedom, making possible to handle the neutral current caused by the unbalanced load. Simulation results are compared with experimental results for a prototype inverter to verify the validity of the proposed control strategy.Read less <
English Keywords
Converters control
Current control
Hybrid power integration
Power Quality
Renewable energy systems
Symmetrical Components
Voltage control
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