Post by Rohit Balivada

Single-Phase Half-Controlled Rectifier Simulation using MATLAB/Simulink As part of my Power Electronics journey, I simulated a Single-Phase Half-Controlled Rectifier to analyze how varying the thyristor firing angle affects the output voltage. Simulation Parameters:  Supply Voltage = 230 V (RMS), 50 Hz  Single-Phase Half-Controlled Rectifier Observed Results:  Case 1 Firing Angle (α) = 36° Output RMS Voltage = 157.7 V  Case 2 Firing Angle (α) = 72° Output RMS Voltage = 135.1 V  Case 3 Firing Angle (α) = 108° Output RMS Voltage = 90.16 V  Case 4 Firing Angle (α) = 144° Output RMS Voltage = 35.74 V Key Observation:  As the firing angle increases, the thyristor conducts for a shorter duration during each cycle, resulting in a lower output RMS voltage.  As the firing angle decreases, the conduction interval increases, allowing more of the input waveform to reach the load and producing a higher output voltage. This simulation clearly demonstrates how phase-angle control can be used to regulate the output voltage of a controlled rectifier. Through this simulation, I strengthened my understanding of:  Phase Angle Control  Thyristor Switching Characteristics  AC-to-DC Power Conversion  Controlled Rectifier Operation  Output Voltage Regulation Controlled rectifiers are widely used in variable DC power supplies, battery charging systems, DC motor drives, industrial process control, and power conversion applications. Continuously learning and exploring practical applications of Power Electronics through MATLAB/Simulink simulations. #PowerElectronics #ControlledRectifier #HalfControlledRectifier #Thyristor #MATLAB #Simulink #ElectricalEngineering #EEE #PowerConversion #EngineeringStudent #LearningByDoing

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