Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller

Synchronous reference frame proportional-integral (PI) current controller (CC) is considered the most well-established solution for regulation in electrical drives. However, gain selection of PI CC still regarded to be poorly reported, particularly relation effect inevitable execution time taken by and inverter. Mostly, tuning process done trial error or using simple rules based on pole zero cancelation placement methods which ignore delays through Hence, delivers significantly different performance compared expected one during digital implementation, especially if high bandwidth low ratio between switching operational frequency are required. Therefore, this paper firstly addresses analyses common existence followed a rigorous analysis CCs' robustness influence computational modulation delays. Based analysis, generic recommendations have been proposed select gains as function drive considering delay effect. A set simple, generic, fast were derived that guarantee dynamic with reasonable stability margins. Moreover, effects model uncertainties these developed analyzed reported. Comprehensive experimental results provided prove key analytical study validate design recommendations.