Unstable Operation of Photovoltaic Inverter From Field Experiences

This letter presents records of unstable operations in grid-connected photovoltaic generation plants. The instabilities involve a wide range of frequencies from tens to thousands of Hertz. Possible causes of the instabilities are discussed based on the literature survey. This letter suggests new industry standards or grid codes for photovoltaic generation integration should consider such practical challenges.

[1]  T. Messo,et al.  Modeling the grid synchronization induced negative-resistor-like behavior in the output impedance of a three-phase photovoltaic inverter , 2013, 2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

[2]  Frede Blaabjerg,et al.  Harmonic Stability Assessment for Multiparalleled, Grid-Connected Inverters , 2014, IEEE Transactions on Sustainable Energy.

[3]  Frede Blaabjerg,et al.  Passivity-Based Stability Assessment of Grid-Connected VSCs—An Overview , 2016, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[4]  Yun Wei Li,et al.  Investigation and Active Damping of Multiple Resonances in a Parallel-Inverter-Based Microgrid , 2013, IEEE Transactions on Power Electronics.

[5]  T. Messo,et al.  Time and frequency-domain evidence on power quality issues caused by grid-connected three-phase photovoltaic inverters , 2014, 2014 16th European Conference on Power Electronics and Applications.

[6]  Bo Wen,et al.  Influence of phase-locked loop on input admittance of three-phase voltage-source converters , 2013, 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[7]  Frede Blaabjerg,et al.  An Active Damper for Stabilizing Power-Electronics-Based AC Systems , 2014 .

[8]  Frede Blaabjerg,et al.  Harmonic stability assessment for multi-paralleled, grid-connected inverters , 2014, 2014 International Power Electronics and Application Conference and Exposition.