SVPWM Implementation for Three-Level and Two-Level Inverters

Implementation of Space Vector Pulse Width Modulation (SVPWM) technology in three-phase and two-phase inverter systems.

SVPWM technology is an advanced control method for inverters that enables efficient and precise voltage and current output. This technique is based on optimizing the modulation of inverter output waveforms to achieve lower harmonic distortion and higher power factor. The implementation typically involves sector identification, duty cycle calculation, and switching sequence generation using mathematical transformations and lookup tables.

Key implementation aspects include Clarke transformation for converting three-phase quantities to α-β reference frame, sector determination using angle calculations, and duty cycle computation based on reference voltage vectors. For three-level inverters, additional neutral point control and voltage balancing algorithms are integrated. Code implementation often utilizes PWM timer registers, dead-time compensation, and optimized switching patterns to minimize switching losses.

By employing SVPWM technology, inverter performance and efficiency can be significantly improved, making it widely applicable across various industrial domains including motor drives, renewable energy systems, and power quality improvement applications.