Title :
The design of high-frequency switching power supply for field test of high-voltage circuit breaker
Author :
Sun, Yi ; Zhang, Xiaodong ; Wang, Lingling
Author_Institution :
Dept. of Electr. Eng., Beijing Jiaotong Univ., Beijing
Abstract :
Based on the working conditions and development trend of operating mechanism of high-voltage circuit breaker, this paper presented a high-load adjustment rate of portable high-frequency switching power supply designed for high-voltage circuit breakers test. The main circuit topological structure is analysed in detail, which uses the fullbridge circuit and IGBTs (insulated gate bipolar transistor) as switches. The focus is on the EMI (electromagnetic interference) filter circuit and soft-start circuit. The PWM (pulse-width modulation) integrated chip TL494 is adopted to control the power supply. Test results showed that the design was reasonable and had reliable performance.
Keywords :
PWM power convertors; bridge circuits; circuit breakers; electromagnetic interference; power supply circuits; EMI filter circuit; IGBT switch; PWM integrated chip TL494; electromagnetic interference; fullbridge convertor; high-voltage circuit breaker test; insulated gate bipolar transistor; portable high-frequency switching power supply design; power supply control; pulse-width modulation; soft-start circuit; Circuit breakers; Circuit testing; Electromagnetic interference; Employee welfare; Insulated gate bipolar transistors; Power supplies; Pulse width modulation; Pulsed power supplies; Switches; Switching circuits;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
