DocumentCode :
1886077
Title :
Digital controller design for electronic ballasts with phase control
Author :
Yin, Yan ; Zane, Regan
Author_Institution :
Power Electron. Center, Colorado Univ., Boulder, CO, USA
Volume :
3
fYear :
2004
fDate :
20-25 June 2004
Firstpage :
1855
Abstract :
This work presents an approach for digital controller design and implementation in resonant inverters and electronic ballasts. The controller is designed around an inner phase loop for fast regulation of the resonant tank operating point and an outer current loop to control the output load current. The concept of direct digital phase control is reviewed, followed by a description of a complete dual-loop digital controller design. The controller is applied to an HID ballast control system with additional functions including lamp startup and output overvoltage protection. The digital system is described with Verilog coding and can be synthesized and implemented automatically in standard digital logic. An FPGA-based test bed for the digital controller is implemented for rapid prototyping, reprogrammability, and realistic hardware realization.
Keywords :
digital systems; direct digital control; discharge lamps; electric current control; field programmable gate arrays; hardware description languages; lamp accessories; overvoltage protection; phase control; power engineering computing; resonant invertors; FPGA-based test bed; HID ballast control system; Verilog coding; current loop; direct digital phase control; dual-loop digital controller design; electronic ballast; hardware realization; load current control; overvoltage protection; phase loop; rapid prototyping; reprogrammability; resonant inverter; resonant tank; standard digital logic; Automatic control; Control systems; Digital control; Electronic ballasts; High intensity discharge lamps; Phase control; Protection; Resonance; Resonant inverters; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
ISSN :
0275-9306
Print_ISBN :
0-7803-8399-0
Type :
conf
DOI :
10.1109/PESC.2004.1355398
Filename :
1355398
Link To Document :
بازگشت