Parallel three-phase UPS inverters with a new control technique

Lin Xinchun1, Chen Xikun1, Kang Yong1, Duan Shanxu1, Chen Jian1
1Department of Electrical Engineering, Huazhong University of Science and Technology, Wuhan, China

Tóm tắt

This paper presents a new control technique which allows the parallel operation of two three-phase UPS modules, this scheme can achieve excellent characteristics both in steady states and in transient states. Experiments are presented to verify the theoretical discussion with two three-phase 60 kVA UPS modules employing TMS320F240.

Từ khóa

#Uninterruptible power systems #Inverters #Voltage #Reactive power control #Reactive power #Power system reliability #Frequency synchronization #Phase locked loops #Equivalent circuits #Steady-state

Tài liệu tham khảo

10.1109/APEC.1997.581439 10.1109/28.2868 10.1109/28.195899 10.1109/INTLEC.1984.4794138