Electronic phase shifting in multipulse rectifier
Вантажиться...
Дата
2017
DOI
doi.org/10.1515/ecce-2017-0001
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Sciendo
Анотація
This paper presents a novel converter which can reduce the harmonics like the conventional multipulse converters with input three phase transformer. To reduce total harmonic distortion of input current and improve the weight and size of converters, it is suggested to use multi-pulse rectifiers with an electronic phase shift. The basic module is a 6-pulse rectifier on fully controlled switches with the reverse blocking ability. Switching frequency either coincides or is twice the power frequency. The proposed solutions allow refusing from the electromagnetic phase-shifting devices (power transformers or auto-transformers) and thereby significantly reduce the weight of the device. Unlike power factor correction systems with high-frequency modulation, the proposed converters are significantly different, as they have better electromagnetic compatibility and the virtual absence of dynamic switching losses of power switches.
Опис
Ключові слова
electronic phase shifting, multipulse rectifier, power quality, power system harmonics, total harmonic distortion, unit power coefficient
Бібліографічний опис
Electronic phase shifting in multipulse rectifier / Ye. I. Sokol [et al.] // Electrical, control and communication engineering. – 2017. – Vol. 12, iss. 1. – P. 5-10.