1. PWM regenerative rectifiers: state of the art;Rodriguez;IEEE Trans. Ind. Electr.,2005
2. Harmonic reduction in multiplex convertors by triple-frequency current injection;Bird;Proc. IEE,1969
3. Generalised method of harmonic reduction in ac/dc convertors by harmonic current injection;Ametani;Proc. IEE,1972
4. Harmonic reduction in dc ripple reinjection;Baird;Proc. IEE,1980
5. New method for reducing harmonics involved in input and output of rectifier with interphase transformer;Miyairi;IEEE Trans. Ind. Appl.,1986