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IET Power Electronics Early View Online Version of Record before inclusion in an issue

Open Access

ORIGINAL RESEARCH

Estimating the potential maximum power point based on the calculation of short‐circuit current and open‐circuit voltage

Van Hien Bui, Viet Anh Truong, Vu Lan Nguyen, Thanh Long Duong

Version of Record online: 10 January 2024

Proposed operation point 0.4 V_oc to determine I_sc value instead of calculating at 0.2 V_oc position. Then calculate I_sc and V_oc based on I(V) curve of photovoltaic system to quickly identify potential maximum power point locations based on these values. Determine the I_sc and V_oc according to operating conditions to limit calculation errors and reduce pressure on switches.

Open Access

ORIGINAL RESEARCH

Driver optimization of high power converter based on BIGT reverse conduction loss

Lei Qi, Ze Li, Xiangyu Zhang, Jin Yang, Yuanfang Lu, Jingfei Wang, Fuyue Wen, Kefeng Wang, Xinyu Hu

Version of Record online: 10 January 2024

This paper investigates the relationship between Bi-mode Insulated Gate Transistor's (BIGT's) on-state voltage drop in diode mode and its gate-emitter voltage in detail. Furthermore, a novel driver optimization scheme is proposed to automatically lower the gate voltage during reverse conduction, which can effectively reduce the reverse on-state losses of the BIGT.

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