Improved Virtual Inertia Based Control of a Grid Connected Voltage Source Converter with Fault Ride-Through Ability
This paper modifies the virtual inertia control of a grid connected converter and proposes a hybrid control technique to control a grid connected converter under grid unbalanced conditions. To limit fault currents and support fault ride-through, the control technique is changed from the virtual inertia control to the conventional current control during grid unbalances. With the mitigation of the grid unbalance the control is changed back to the virtual inertia control. The paper analyzes the advantages of doing so and introduces a control scheme to achieve the proposed transfer. Simulation results are presented to evaluate the proposed control.
S. Mukherjee et al., "Improved Virtual Inertia Based Control of a Grid Connected Voltage Source Converter with Fault Ride-Through Ability," Proceedings of the 48th North American Power Symposium (2016, Denver, CO), pp. 1-5, Institute of Electrical and Electronics Engineers (IEEE), Sep 2016.
The definitive version is available at http://dx.doi.org/10.1109/NAPS.2016.7747871
48th North American Power Symposium (2016: Sep. 18-20, Denver, CO)
Electrical and Computer Engineering
Keywords and Phrases
Electric Current Control; Control Techniques; Conventional Currents; Fault Ride-Through; Grid-Connected Converters; Synchronous Machine; Unbalanced Condition; Virtual Inertia; Voltage Source Converters; Power Converters; Current Control; Grid Connected Converter; Virtual Synchronous Machine; Fault Ride Through
International Standard Book Number (ISBN)
Article - Conference proceedings
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