On Distributed PV Hosting Capacity Estimation, Sensitivity Study, and Improvement

This paper first studies the estimated distributed photovoltaic (PV) hosting capacities of 17 utility distribution feeders using the Monte Carlo simulation based stochastic analysis, and then analyzes the sensitivity of PV hosting capacity to both feeder and PV system characteristics. Furthermore, an active distribution network management approach is proposed to maximize PV hosting capacity by optimally switching capacitors, adjusting voltage regulator taps, managing controllable branch switches, and controlling smart PV inverters. The approach is formulated as a mixed-integer nonlinear optimization problem and a genetic algorithm is developed to obtain the solution. Multiple simulation cases are studied and the effectiveness of the proposed approach on increasing PV hosting capacity is demonstrated.

[1]  Wolfgang Prüggler,et al.  Harnessing PV inverter controls for increased hosting capacities of smart low voltage grids Recent results from Austrian research and demonstration projects , 2014 .

[2]  William Kersting,et al.  Distribution System Modeling and Analysis , 2001, Electric Power Generation, Transmission, and Distribution: The Electric Power Engineering Handbook.

[3]  Fei Ding,et al.  Hierarchical decentralized network reconfiguration for smart distribution systems-Part I: Problem formulation and algorithm development , 2015, 2015 IEEE Power & Energy Society General Meeting.

[4]  A. Sannino,et al.  Voltage control with inverter-based distributed generation , 2005, IEEE Transactions on Power Delivery.

[5]  Luigi Vanfretti,et al.  Coordination assessment of overcurrent relays in distribution feeders with high penetration of PV systems , 2013, 2013 IEEE Grenoble Conference.

[6]  C. L. Masters.  Voltage rise: the big issue when connecting embedded generation to long 11 kV overhead lines , 2002 .

[7]  Santiago Grijalva,et al.  Improving distribution network PV hosting capacity via smart inverter reactive power support , 2015, 2015 IEEE Power & Energy Society General Meeting.

[8]  M. Steurer,et al.  Impact of PV on distribution protection system , 2012, 2012 North American Power Symposium (NAPS).

[9]  Nadarajah Mithulananthan,et al.  Harmonic impact of high penetration photovoltaic system on unbalanced distribution networks - learning from an urban photovoltaic network , 2016 .

[10]  R. A. Shayani,et al.  Photovoltaic Generation Penetration Limits in Radial Distribution Systems , 2011, IEEE Transactions on Power Systems.

[11]  Cheng-Ting Hsu,et al.  Optimization of Photovoltaic Penetration in Distribution Systems Considering Annual Duration Curve of Solar Irradiation , 2012, IEEE Transactions on Power Systems.

[12]  R Tonkoski,et al.  Coordinated Active Power Curtailment of Grid Connected PV Inverters for Overvoltage Prevention , 2011, IEEE Transactions on Sustainable Energy.

[13]  B. Kroposki,et al.  Distribution System Voltage Performance Analysis for High-Penetration PV , 2008, 2008 IEEE Energy 2030 Conference.

[14]  Emilio Gómez-Lázaro,et al.  Power quality surveys of photovoltaic power plants: characterisation and analysis of grid-code requirements , 2015 .

[15]  Birgitte Bak-Jensen,et al.  Determining maximum photovoltaic penetration in a distribution grid considering grid operation limits , 2014, 2014 IEEE PES General Meeting | Conference & Exposition.

[16]  K F Katiraei,et al.  Solar PV Integration Challenges , 2011, IEEE Power and Energy Magazine.