Control Strategy for Uninterrupted Microgrid Mode Transfer During Unintentional Islanding Scenarios

This paper presents a microgrid control strategy to unify the control topology for energy storage systems and renewable energy sources inverters in an ac microgrid and to protect the microgrid reliability from unintentional islanding instability using control loops, which use thedc link voltage as a feedback. This bounds the dc link voltage and provides reliable operation in the microgrid. Simulation validates the proposed control strategy, and experiment results extol the concept.

[1]  Walid Issa,et al.  A small signal model of an inverter-based microgrid including DC link voltages , 2015, 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe).

[2]  S. Perera,et al.  Microgrids of Commercial Buildings: Strategies to Manage Mode Transfer From Grid Connected to Islanded Mode , 2014, IEEE Transactions on Sustainable Energy.

[3]  A Elmitwally,et al.  Flexible Operation Strategy for an Isolated PV-Diesel Microgrid Without Energy Storage , 2011, IEEE Transactions on Energy Conversion.

[4]  Lieven Vandevelde,et al.  Transition From Islanded to Grid-Connected Mode of Microgrids With Voltage-Based Droop Control , 2013, IEEE Transactions on Power Systems.

[5]  Tapas K. Mallick,et al.  Improved Reactive Power Sharing for Parallel-operated Inverters in Islanded Microgrids , 2016 .

[6]  J. Miret,et al.  Decentralized Control for Parallel Operation of Distributed Generation Inverters in Microgrids Using Resistive Output Impedance , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[7]  Jin Jiang,et al.  Control strategy for a standalone PV/battery hybrid system , 2012, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society.

[8]  Hak-Man Kim,et al.  Cooperative Control Strategy of Energy Storage System and Microsources for Stabilizing the Microgrid during Islanded Operation , 2010, IEEE Transactions on Power Electronics.

[9]  Tzung-Lin Lee,et al.  Design of virtual inductance for droop-controlled inverter with seamless transition between islanded and grid-connected operations , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[10]  J.A.P. Lopes,et al.  Defining control strategies for MicroGrids islanded operation , 2006, IEEE Transactions on Power Systems.

[11]  Josep M. Guerrero,et al.  Advanced Control Architectures for Intelligent Microgrids—Part I: Decentralized and Hierarchical Control , 2013, IEEE Transactions on Industrial Electronics.

[12]  Jih-Sheng Lai,et al.  Design of Parallel Inverters for Smooth Mode Transfer Microgrid Applications , 2009, IEEE Transactions on Power Electronics.

[13]  Josep M. Guerrero,et al.  Droop-controlled inverters with seamless transition between islanding and grid-connected operations , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[14]  Juan C. Vasquez,et al.  Adaptive Droop Control Applied to Voltage-Source Inverters Operating in Grid-Connected and Islanded Modes , 2009, IEEE Transactions on Industrial Electronics.

[15]  Jing Wang,et al.  Design of a Generalized Control Algorithm for Parallel Inverters for Smooth Microgrid Transition Operation , 2015, IEEE Transactions on Industrial Electronics.

[16]  Suleiman M. Sharkh,et al.  Control of Transient Power During Unintentional Islanding of Microgrids , 2015, IEEE Transactions on Power Electronics.

[17]  Yasser Abdel-Rady I. Mohamed,et al.  Hierarchical Control System for Robust Microgrid Operation and Seamless Mode Transfer in Active Distribution Systems , 2011, IEEE Transactions on Smart Grid.

[18]  Juan C. Vasquez,et al.  A Control Architecture to Coordinate Renewable Energy Sources and Energy Storage Systems in Islanded Microgrids , 2015, IEEE Transactions on Smart Grid.

[19]  S. Mishra,et al.  A Seamless Control Methodology for a Grid Connected and Isolated PV-Diesel Microgrid , 2013, IEEE Transactions on Power Systems.

[20]  Fangxing Li,et al.  Coordinated V-f and P-Q Control of Solar Photovoltaic Generators With MPPT and Battery Storage in Microgrids , 2014, IEEE Transactions on Smart Grid.

[21]  Hemanshu R. Pota,et al.  DC-link voltage regulation of inverters to enhance microgrid stability during network contingencies , 2017 .

[22]  Ali Elrayyah,et al.  An Effective Smooth Transition Control Strategy Using Droop-Based Synchronization for Parallel Inverters , 2015, IEEE Transactions on Industry Applications.

[23]  Yasser Abdel-Rady I. Mohamed,et al.  A Flexible Control Strategy for Grid-Connected and Islanded Microgrids With Enhanced Stability Using Nonlinear Microgrid Stabilizer , 2012, IEEE Transactions on Smart Grid.

[24]  Michael Z. Q. Chen,et al.  Centralized Control for Parallel Operation of Distributed Generation Inverters in Microgrids , 2012, IEEE Transactions on Smart Grid.

[25]  Josep M. Guerrero,et al.  Line-Interactive UPS for Microgrids , 2014, IEEE Transactions on Industrial Electronics.

[26]  Josep M. Guerrero,et al.  Single-Phase Microgrid With Seamless Transition Capabilities Between Modes of Operation , 2015, IEEE Transactions on Smart Grid.

[27]  Min Chen,et al.  A seamless transfer strategy of islanded and grid-connected mode switching for microgrid based on droop control , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[28]  K. T. Tan,et al.  Coordinated Control and Energy Management of Distributed Generation Inverters in a Microgrid , 2013, IEEE Transactions on Power Delivery.