Title :
A low cost and high reliability control scheme in parallel operation for 400Hz power supply
Author :
Joung, Seok-Eon ; Hyun, Dong-seok
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul
Abstract :
In this paper, a low cost and high reliability control scheme is proposed for 400 Hz UPS system operated in parallel.The proposed control scheme is consisted of two parts which are synchronization and load sharing control. The synchronization control is achieved by discrete logic ICs and analog circuit. The load sharing control is realized by current transformers (CTs) without any controller. Therefore, this proposed control scheme is rather simple and the cost may be decreased, compared with control scheme using expensive controller such as DSP and CAN. The practical feasibility of the proposed control scheme is proved by simulation.
Keywords :
controller area networks; current transformers; digital signal processing chips; integrated logic circuits; load flow control; power system control; power system reliability; synchronisation; CAN; DSP; UPS system; analog circuit; current transformers; discrete logic integrated circuit; frequency 400 Hz; load sharing control; parallel operation; power supply; reliability control; synchronization control; Control systems; Costs; Digital signal processing; Frequency synchronization; Inverters; Power electronics; Power supplies; Power system reliability; Reactive power; Uninterruptible power systems;
Conference_Titel :
Power Electronics, 2007. ICPE '07. 7th Internatonal Conference on
Conference_Location :
Daegu
Print_ISBN :
978-1-4244-1871-8
Electronic_ISBN :
978-1-4244-1872-5
DOI :
10.1109/ICPE.2007.4692522
