Bioinspired STHVO based MPPT control for grid connected photovoltaic water pumping systems

Area of Science:

• Renewable Energy Engineering
• Optimization Algorithms
• Sustainable Water Management

Background:

• Photovoltaic (PV) pumping systems are crucial for sustainable water supply in remote areas.
• System performance degrades under fluctuating solar irradiance.
• Efficient Maximum Power Point Tracking (MPPT) is vital for optimizing PV system output.

Purpose of the Study:

• To introduce a novel nature-inspired MPPT technique, Spider-Tailed Horned Viper Optimization (STHVO), for PV pumping systems.
• To evaluate the effectiveness of STHVO under varying solar conditions.
• To enhance the energy reliability and water delivery of solar-powered water supply systems.

Main Methods:

• Developed a PV pumping system comprising a PV generator, step-up converter, and induction motor-driven radial-flow pump.
• Implemented the STHVO algorithm for MPPT control.
• Simulated system performance under standard (1000 W/m²) and real-world (Bni Hadifa region) irradiance variations.

Main Results:

• STHVO achieved 98.92% efficiency and 72 W peak hydraulic power.
• The system maintained a consistent flow rate of 0.65 L/s.
• STHVO demonstrated rapid tracking (<0.6 s) and stable motor speed (195 rad/s).

Conclusions:

• The STHVO technique significantly outperforms traditional methods for PV pumping systems.
• This optimization enhances energy conversion efficiency and water delivery consistency.
• STHVO offers a reliable solution for improving solar-powered water supply in challenging environments.