Three-Phase PWM Rectifier Hysteresis Control Strategy

This document presents a hysteresis control strategy for three-phase PWM rectifiers, implemented and validated through SIMULINK simulations. The control parameters have been pre-configured and thoroughly tested to ensure they meet all specified requirements. The hysteresis control algorithm maintains current within predefined bounds by switching power devices when current errors exceed tolerance thresholds, providing robust performance against parameter variations and disturbances. This control approach enables effective power system management, enhancing rectifier performance and efficiency through precise current regulation. The strategy employs voltage-oriented control (VOC) with inner current hysteresis loops, utilizing PWM modulation techniques for optimal switching patterns. The implementation methodology includes dq-axis transformation for decoupled active and reactive power control, with hysteresis comparators determining switching states based on instantaneous current errors. This control scheme finds applications across various industrial and power systems, including electric vehicle charging infrastructure, wind power generation systems, and solar energy conversion systems. Through continued research and refinement of this control strategy, system performance can be further optimized to achieve superior energy conversion efficiency and utilization rates. The SIMULINK model incorporates key functional blocks for Clarke/Park transformations, hysteresis controllers, and space vector PWM generation, providing a comprehensive framework for control system analysis and optimization.