MATLAB Simulation of Solar PV Fed BLDC Motor Water Pump System | PV Fed BLDC Motor Water Pump

MATLAB Simulation of Solar PV Fed BLDC Motor Water Pump System | PV Fed BLDC Motor Water Pump

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Solar PV Array Fed Brushless DC (BLDC) Motor Driven Water Pump using Incremental Conductance (INC) MPPT and DC–DC Boost Converter Control.

This simulation is developed based on a standard research paper, where the same PV, BLDC motor, boost converter, and pump specifications are used. The results obtained in Simulink perfectly match the paper's reported output.

🔧 What You Will Learn

✔ Working principle of Solar PV → Boost Converter → BLDC Motor → Water Pump
✔ Implementation of Incremental Conductance MPPT (dV/dP and dI conditions)
✔ DC bus voltage regulation at 310 V using PI controller
✔ Hall sensor to back-EMF conversion → switching pulse generation
✔ V/f & torque behaviour of BLDC under varying solar irradiation
✔ Performance under constant irradiance (1000 W/m²)
✔ Dynamic irradiance (200 W/m² → 1000 W/m² → 200 W/m²)

⚙️ Model Rating & Specifications
🔹 Solar PV Array

Maximum Power: 2237 W

Operating Voltage: ~238 V

Operating Current: ~9.4 A

Irradiance Tested: 200 W/m² and 1000 W/m²

🔹 Boost Converter

Controlled by Incremental Conductance MPPT

DC bus regulated at 310 V

IGBT switching using PWM (duty cycle from MPPT + DC bus loop)

Inductor current (IL): 3–10 A range based on irradiance

🔹 BLDC Motor

Rated Power: 1.8 kW

Rated Speed: 3000 rpm

Peak Stator Current: 10 A

Electromagnetic Torque: ~6 Nm at full irradiation

Back EMF Peak: ~110 V

🔹 Water Pump

Torque is generated based on motor speed

Pump torque is proportional to speed²

Load torque matches paper specifications

📊 Simulation Outputs Included

PV Voltage, Current, Power

DC Bus Voltage & Inductor Current

Stator Current & Back EMF

Electromagnetic Torque

Motor Speed vs Irradiance

Pump Load Torque

Comparison with paper results (matches exactly)

⭐ Key Points

Solar PV fed BLDC motor system

MATLAB/Simulink BLDC water pump model

Incremental Conductance MPPT explained

MPPT for water pumping applications

BLDC motor torque & speed characteristics

Boost converter design for PV systems

Dynamic irradiance performance

Renewable energy water pumping

MATLAB simulation tutorial

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