1. A MONITORING AND CONTROL SYSTEM FOR HID LAMPS
Dos Reis, F. S.; Lima, J. C.; Dantas, C. G.; Rodrigues, L. W.; Martinazzo, F.; Godinho, L. A.; Martino, M. G.; Sarmanho, U. A.
Pontifical Catholic University of Rio Grande do Sul
Brazil

2. Table of Contents INTRODUCTION OBJECTIVES
THE SMART PUBLIC ILUMINATION SYSTEM
THE HPS LAMP
THE PFP
THE ELECTRONIC BALLAST
POWER METER
PLC COMMUNICATION SYSTEM
EXPERIMENTAL RESULTS
CONCLUSIONS
09/12/2018

3. Objectives

4. Objectives
To develop a HPS (High Pressure Sodium) lamp electronic ballast with high power factor, luminosity control, power meter and short circuit control.
To design a communication system, using PLC, to control the electronic ballasts.

5. Smart Public Ilumination
Electronic
Ballast
Electronic
Ballast
Communication
Interface
Communication
Interface
Communication
Interface
Master
Radio

6. PLC Comunication:
Carrier
Data output

7. HIGH INTENSITY DISCHARGE LAMPS (HID):
High Pressure Sodium Lamp (HPS)
Discharge tube made of Synthesized Aluminum;
Does not produce Ultraviolet radiation;
Needs about 2.5 kV pulse for lamp ignition
One of the lamps with higher lifetime.

8. HIGH INTENSITY DISCHARGE LAMPS (HID):
High Pressure Sodium Lamp (HPS)
The HPS lamps have many particularities when they operate in high frequency, such as:
Can be modeled by a resistance in steady state;
Can have controlled luminous intensity;
The spectrum color reproduction can be modified;
Presents the acoustic resonance phenomenon,

9. HID NEGATIVE RESISTENCE
■ Voltage
■ Current

10. Ballast Characteristics
Power Consume Control, using luminosity flux control.
High Power Factor and Low THD.
Remote Control of Electronic Ballasts.
Energy Consume monitoring for charging.

11. ELECTRONIC BALLAST STAGES
VOLTAGE
TIME
EMI
FILTER
MAINS
(AC)
RECTIFIER
PFP
INVETER
RESONANT
LAMP

12. Basic PFP C dc v g + e - i ac V
DC - DC

13. Controle FM i ( t) g med t DC DC + C dc V g R Converter e - Zero
Filter e + - g C dc R
ref
Zero
Detector
Monostable
reset
Time constant
error V

14. PFP Prototype

15. Electronic Ballast Prototype

16. BALLAST TOPOLOGY I V

17. INDUCTOR AND CAPACITORS DEFINITION
With:
Z/R = 1.637
Ql = 0.141
It is obtained:

18. Power Meter Prototype

19. Prototypes
CONTROLLER
MODEM

20. Information from Ballast :
Power Consume;
Luminosity Flux Control;
Ballast and Lamp Conditions;
Lamp State;
Fails;

21. Experimental Results

22. Input Voltage and Current
PFP

23. Electronic Ballast
Lamp operating in 65 kHz nominal frequency:

24. Electronic Ballast
Lamp operating in 100kHz:

25. Experimental Results Acoustic Resonance
Discharge with Acoustic Resonance (18kHz)
Lamp Destroyed by Acoustic Resonance
Normal Discharge

26. Electromagnetic Ballast
Experimental Results – Light Oscilogram
Electronic Ballast
Electromagnetic Ballast

27. Conclusions It was developed local technology in:
Electronic Ballast for HID Lamps
PFP
PLC Comunication

28. Conclusions
The luminosity flux control was obtained for HID lamp, making possible the power consume control.
A high power factor was obtained.

29. Conclusions
The PLC transmission presented to be sensible for mains characteristics. New techniques must be investigated.
The implemented prototype, constituted of 2 in cascade converters (PFP and Ballast), should be improved to integrate in one converter the PFP and Ballast.

30. Obrigado!