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A Study on the Algorithm for Single Phase Control of IGBT PWM Rectifier Seung-Ho Kim, Jae-Beom Park, Dong-Hyun Tae, Seung-Jong Kim, Joong-Ho Song, Dae-Seok Rho
Korea University of Technology & Education, Global Electricity Co., Ltd, Seoul National University of Science and Technology
Abstract
Recently, the use of transformer-less UPS has increased to improve the efficiency of UPS. However, transformer-less UPS is required in three-phase four-wire input IGBT PWM rectifier and the existing three-phase three-wire PFC algorithm cannot be applied in the three-phase four-wire system due to the neutral current problem of UPS input. To control the three-phase four-wire input IGBT PWM rectifier, there are two existing algorithms: 3D SVM and single phase control method. These two algorithms have advantages/disadvantages in controlling the rectifier. The single phase control method is unstable for controlling the rectifier and the 3D SVM method has a problem that must increase the L value of the input-side inductor considerably. Therefore, this paper proposes digital single phase control technology and another new algorithm considering the d-q control, to improve the characteristics of the existing control algorithm. In addition, this paper performed a simulation and experiment based on the proposed control algorithm. The simulation results showed that the proposed technology can control three-phase four-wire IGBT PWM rectifier in a stable manner and can also reduce the neutral current. The proposed algorithm is a useful tool for controlling the three-phase four-wire IGBT PWM rectifier.
Keywords : UPS, IGBT PWM Rectifier, Single Phase Control, d-q Control. UPS;IGBT PWM Rectifier;Single Phase Control;d-q Control;
LINK FULL PAPER:
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=SHGSCZ_2016_v17n4_26
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