Title :
Design of a digital controller for high frequency HID lamp ballast
Author :
Zhu, Jingpeng ; Zhuo, Fang ; Wang, Zhao´an
Author_Institution :
Sch. of Electr. Eng., Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
This paper presents the analysis, control strategy and realization of a digital frequency controller of a two stage ballast for HID Lamps. First, the small signal phasor model of the LCSCP resonant inverter is established and verified. Based on this model, a double loop digital compensator is designed to control the current and power of the lamp. Then the overall control strategy for the long term stability of the ballast is designed and realized on a PIC MCU controller. Finally, a electronic ballast for a 400 W MH lamp is designed based on this scheme, and the experimental results are provided.
Keywords :
control system synthesis; digital control; discharge lamps; frequency control; lamp accessories; resonant power convertors; PIC MCU controller; digital controller design; digital frequency controller; double loop digital compensator; electronic ballast; high frequency HID lamp ballast; long term stability; power 400 W; Digital control; Electronic ballasts; Frequency; High intensity discharge lamps; Power generation; Resonance; Resonant inverters; Stability; Steady-state; Voltage control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3556-2
Electronic_ISBN :
978-1-4244-3557-9
DOI :
10.1109/IPEMC.2009.5157828
