Investigation of different Fault Ride Through strategies for renewable energy sources

The Fault Ride Through (FRT) capability of renewable energy sources (RES) for providing support to the power grid under several disturbances allows us to consider them not only as passive elements in the power system network, but also as ancillary services for the mitigation of evolving contingencies. In this paper, an investigation of the FRT operation of RES according to current grid regulations highlights some impacts on the system response that were not considered previously and require to be addressed. Slight modifications of the current grid codes are therefore necessary to solve these problems. A critical dead band zone modification for smother fault recovery is suggested. Moreover, this paper proposes the use of an adjustable parameter into the FRT strategy for a fair compromise of voltage and frequency support. The proposed FRT strategies are applied to a RES that is interconnected with the IEEE 14-bus test system and dynamic electromagnetic transient simulation results are provided.

[1]  H. H. Happ,et al.  Power System Control and Stability , 1979, IEEE Transactions on Systems, Man, and Cybernetics.

[2]  Chia-Chi Chu,et al.  Applications of Nonlinear Control for Fault Ride-Through Enhancement of Doubly Fed Induction Generators , 2014, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[3]  Frede Blaabjerg,et al.  Flexible Active Power Control of Distributed Power Generation Systems During Grid Faults , 2007, IEEE Transactions on Industrial Electronics.

[4]  R. Teodorescu,et al.  Overview of recent grid codes for wind power integration , 2010, 2010 12th International Conference on Optimization of Electrical and Electronic Equipment.

[5]  Frede Blaabjerg,et al.  A new hybrid PLL for interconnecting Renewable Energy Systems to the grid , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[6]  I. Erlich,et al.  Advanced grid requirements for the integration of wind turbines into the German transmission system , 2006, 2006 IEEE Power Engineering Society General Meeting.

[7]  Marco Liserre,et al.  Grid Converters for Photovoltaic and Wind Power Systems , 2011 .

[8]  Frede Blaabjerg,et al.  A grid side converter current controller for accurate current injection under normal and fault ride through operation , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.

[9]  Frede Blaabjerg,et al.  A Robust Synchronization to Enhance the Power Quality of Renewable Energy Systems , 2015, IEEE Transactions on Industrial Electronics.

[10]  Juan C. Vasquez,et al.  Flexible Voltage Support Control for Three-Phase Distributed Generation Inverters Under Grid Fault , 2013, IEEE Transactions on Industrial Electronics.

[11]  R. Teodorescu,et al.  Overview of recent Grid Codes for PV power integration , 2012, 2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM).

[12]  Frede Blaabjerg,et al.  An Adaptive Tuning Mechanism for Phase-Locked Loop Algorithms for Faster Time Performance of Interconnected Renewable Energy Sources , 2015, IEEE Transactions on Industry Applications.