A three-phase grid-connected photovoltaic (PV) wind battery system in MATLAB
 
Experience a complete Three-Phase Grid-Connected Solar PV–Wind–Battery Hybrid Energy System built entirely in MATLAB/Simulink—designed for high-end research, thesis work, and industrial-level renewable energy studies. This model demonstrates coordinated power flow between PV, wind, battery, loads, and the utility grid under dynamic environmental conditions.
 
This professional system includes:
 
🔧 Hybrid Generation Architecture
 
🌞 Solar PV Subsystem
 
7.5 kW PV array (15S × 2P)
Boost converter with Incremental Conductance MPPT
Voltage boosted from 460 V → 700 V DC link
Fast and stable MPP tracking
 
🌬️ Wind Energy Conversion System
 
5.79 kW wind turbine coupled to PMSG
Three-phase diode rectifier for AC–DC conversion
Boost converter with Perturb & Observe MPPT
Efficient aerodynamic + electrical energy conversion
 
🔋 Battery Energy Storage System (BESS)
 
35 × 12 V, 48 Ah battery bank (420 V nominal)
Bidirectional DC–DC converter (buck/boost modes)
Automatic charge/discharge based on power balance
DC-link voltage control using PI regulator
 
⚡ Grid-Connected Inverter System
Three-Phase Inverter + LC Filter + Transformer
 
SPWM-based modulation
Harmonic reduction through LC filter
Isolation transformer for grid interfacing
 
dq-Axis Current Control
 
PLL for grid synchronization
Id controls real power
Iq = 0 ensures unity power factor
Enables smooth import/export based on system conditions
 
🎯 Performance & Control Features
 
Stable 700 V DC-link regulation across all scenarios
Wind speed variation: 12 m/s → 10.8 m/s
Irradiance variation: 1000 → 500 → 100 → 1000 W/m²
Smart grid logic:
If PV < 0.5 A and SOC < 10% → grid supplies power
Otherwise → system exports 5 A to the grid
Balanced power sharing validated through power-balance plots
Sinusoidal AC output with stable voltage & current
 
📊 What’s Included in the Simulation
 
✔️ Complete MATLAB/Simulink model (.slx)
✔️ Wind turbine + PMSG + rectifier subsystem
✔️ Solar PV + MPPT + boost converter subsystem
✔️ Battery storage with bidirectional converter
✔️ Grid-connected inverter with dq-axis control
✔️ DC load (2.5 kW) + AC load (2 kW)
 
▶️ Video Demonstration
🔗 https://www.youtube.com/watch?v=otnnKAkalgs