Smart Grid-Tied PV-Battery Storage System Operation under Dynamic Conditions

Abstract

This paper presents a three-phase three-wire (3P-3W) grid-tied single-stage PV (Photovoltaic) battery storage system (BES). The presented system is called smart as it operates under three modes, i.e., a) PV to the grid, b) PV and grid, both c) PV-DSTATCOM to DSTATCOM, and vice versa mode. The voltage source converter (VSC) control allows the system to accomplish multifunctional roles, including power quality enhancement, reactive power compensation, load balancing, etc. Switched kernel width maximum correntropy criteria (SMCC) algorithm-based VSC control delivers the desired switching sequence for 3P-3W VSC. The adaptive control algorithm switches between fixed-width MCC to adaptive width MCC, guaranteeing the robustness against impulsive noise signals during dynamic conditions. The system is subjected to diverse, dynamic conditions, i.e., irradiation variation, unbalanced loading, sudden load change, DSTATCOM to STATCOM, and vice versa. In a MATLAB simulation environment, the system operates adequately under various dynamic situations according to the IEEE 519 standard.