Hybrid PV Wind Diesel Generator Grid System
Introduction:
In response to escalating energy demands and environmental concerns, hybrid solar PV-wind-diesel generator systems offer a versatile solution. This simulation model in MATLAB demonstrates the integration of renewable and conventional energy sources, showcasing their potential to achieve sustainable and reliable power generation.
System Configuration:
The hybrid system comprises:
Solar PV Panel Array with Inverter
Wind Turbine with Permanent Magnet Generator (PMNG)
Diesel Generator
Main Grid Connection
System Components:
Main Grid: Rated at 154 megawatts with a voltage rating of 34.5 kilovolts, connected to a Step Down Transformer to reduce voltage to 400 kilovolts.
Hybrid System:
Solar PV System: Consists of a 41-kilowatt PV array connected to a grid inverter with MPPT control. It generates power based on solar irradiation levels.
Wind Turbine: Utilizes a PMNG to convert wind energy into electrical power. Control logic includes speed regulation and feedforward decoupling control.
Diesel Generator: Rated at 30 kilowatts, provides backup power when renewable sources are insufficient.
Load Distribution:
Critical Load 1: 400 kilowatts
Critical Load 2: 80 kilowatts
Non-Critical Load: 500 kilowatts
Simulation Results:
The simulation model tracks power generation from various sources, including solar, wind, and diesel.
Power flow between the hybrid system, main grid, and loads is monitored and analyzed.
Voltage and current profiles at different system components are observed, ensuring stable operation.
Key Observations:
Solar PV power output varies with solar irradiation levels, while wind turbine power output fluctuates with wind speed.
The diesel generator provides backup power when renewable sources are insufficient to meet load demand.
Power exchange with the main grid occurs to balance supply and demand, ensuring uninterrupted power supply to critical loads.
Conclusion:
The MATLAB simulation model effectively demonstrates the operation of a hybrid solar PV-wind-diesel generator system. By analyzing simulation results, insights into system behavior and performance under different operating conditions can be gained, aiding in system design and optimization.
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