D17.1 - Single-Phase Grid-Connected PV Inverter Operating in VCM Using Droop Control and Phase Shift Feedback

Thursday, March 26, 2026

12:00 PM - 1:45 PM CT

Location: Hemisfair Ballroom

Technical Dialogue Presenter(s)

Lúcio Rogério Júnior

Universidade Federal de Uberlândia

Presentation Paper

Co-Author(s)

HT

Henrique Tannús de Moura Carvalho

Universidade Federal de Uberlândia
DB

Danillo Borges Rodrigues

Universidade Federal do Triângulo Mineiro
�C

Ênio Costa Resende

Universidade Federal de Uberlândia
Luiz Carlos Gomes Freitas, Dr. (he/him/his)

Universidade Federal de Uberlândia
EA

Ernane Antônio Alves Coelho

Universidade Federal de Uberlândia

This paper presents a grid-connected photovoltaic system (GCPS) operating under a voltage control mode (VCM) based on the droop control method, combined with phase-shift feedback. In addition to enabling intrinsic reactive power control, the strategy employs virtual resistance to increase damping and improve the P-V and Q-ω droop characteristics. Simulation results validate the proposal, demonstrating stable unit operation, sinusoidal current injection with low total harmonic distortion (THDi), and good dynamic response. Furthermore, effective DC link voltage regulation was achieved with reduced overshoot, even under severe photovoltaic (PV) generation variations. The proposed converter showed robust performance and additional functionalities, providing a suitable control structure for integrating non-dispatchable energy sources into the power grid.