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

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

197

Lastpage

200

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

4770680