Single-Cycle Controlled Rectifier

This article explores single-cycle controlled rectifiers and their MATLAB-based modeling and simulation. We first examine single-cycle control, a power conversion technique that manipulates circuit components' switching states to regulate current flow. Key advantages include reduced switching frequency, which minimizes power losses and acoustic noise while enhancing rectifier stability.

The control mechanism compares output and input voltage differences to determine switch conduction periods. Implementation involves a single-cycle controller circuit that modulates rectifier switches based on input signal characteristics. This approach offers an efficient, simplified method for power conversion with minimal computational complexity.

For practical demonstration, we develop a MATLAB Simulink model incorporating critical parameters like capacitance and inductance values. The simulation employs Power GUI blocks for circuit analysis and Scopes for waveform visualization, enabling detailed observation of voltage/current transitions. Code implementation includes configuring pulse-width modulation (PWM) generators with carrier-based modulation algorithms to achieve precise switching timing.

Through this simulation-based investigation, we evaluate single-cycle control performance under varying load conditions, providing foundational insights for power electronics research and system optimization.