Grid Connected PV with Storage System Simulation for Distribution Grid Supporting

Grid-connected battery-based storage systems allow several applications for distribution grids and it have been widely discussed today. This work applies some features of a DC-AC converter using a grid connected 471. 5kWp photovoltaic system with an integrated storage system. Focusing in details for developing simulations of this system type, a single-phase inverter model was designed with: a DC-DC buck converter to PV power dispatch control, a bidirectional DC-DC buck-boost converter for battery charging and discharging and a single-phase NPC full-bridge for 4. 16kV connected through a transformer to 13.8kV distribution grid. In addition, it presents the applied local loads behavior, control strategies and converters design. As a result, a photovoltaic inverter with storage system and its operation for distribution grid supporting is presented which means, to provide ancillary services to the grid, such as: local load power factor compensation and an hourly-basis active power dispatching. Thus, allowing mitigation of transmission and distribution technical losses and improvements in voltage profile. Simulation results demonstrated an approach to delivering active and reactive power for medium voltage distribution grids maintaining the source at unity power factor.

[1]  Bin Wu,et al.  Five-level H-bridge NPC central photovoltaic inverter with open-end winding grid connection , 2014, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society.

[2]  Kamal Al-Haddad,et al.  Single-stage single-phase three-level neutral-point-clamped transformerless grid-connected photovoltaic inverters: Topology review , 2017 .

[3]  Bimal K. Bose,et al.  A Digital PLL Scheme for Three-Phase System Using Modified Synchronous Reference Frame , 2010, IEEE Transactions on Industrial Electronics.

[4]  Srdjan M. Lukic,et al.  Energy Storage Systems for Transport and Grid Applications , 2010, IEEE Transactions on Industrial Electronics.

[5]  Paulo Fernando Ribeiro,et al.  Application of energy storage elements on a PV system in the smart grid context , 2015, 2015 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM).

[6]  Saad Mekhilef,et al.  Single phase transformerless inverter topologies for grid-tied photovoltaic system: A review , 2015 .

[7]  Abhisek Ukil,et al.  Validation of Faster Joint Control Strategy for Battery- and Supercapacitor-Based Energy Storage System , 2018, IEEE Transactions on Industrial Electronics.

[8]  José Maria de Carvalho Filho,et al.  Modeling, simulation and comparison analysis of an installed photovoltaic system using RTDS , 2016, 2016 12th IEEE International Conference on Industry Applications (INDUSCON).

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

[10]  Guoqin Zhang,et al.  Design and Realization of a Bi-directional DC/DC Converter in photovoltaic power system , 2016 .

[11]  Germano Lambert-Torres,et al.  Implementation of a grid-forming converter based on modified synchronous reference frame , 2014, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society.

[12]  Majid Pahlevaninezhad,et al.  A D-Q rotating frame reactive power controller for single-phase bi-directional converters , 2014, 2014 IEEE 36th International Telecommunications Energy Conference (INTELEC).

[13]  Dale T. Bradshaw,et al.  DOE/EPRI Electricity Storage Handbook in Collaboration with NRECA , 2016 .

[14]  Michela Longo,et al.  Energy storage control for dispatching photovoltaic power , 2017, 2017 IEEE Power & Energy Society General Meeting.