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Peter Tant, Pascal Dupuis, Bruno Bolsens, Jeroen Van den Keybus

COST 529 Meeting, Eindhoven . A Versatile Test Bench for HID Lamps. Peter Tant, Pascal Dupuis, Bruno Bolsens, Jeroen Van den Keybus. Johan Driesen, Ronnie Belmans. Department of Electrical Engineering. K.U.Leuven – ESAT/ELECTA. COST Meeting Eindhoven .

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Peter Tant, Pascal Dupuis, Bruno Bolsens, Jeroen Van den Keybus

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  1. COST 529 Meeting, Eindhoven A Versatile Test Bench for HID Lamps Peter Tant, Pascal Dupuis, Bruno Bolsens, Jeroen Van den Keybus Johan Driesen, Ronnie Belmans Department of Electrical Engineering K.U.Leuven – ESAT/ELECTA COST Meeting Eindhoven

  2. A Versatile Test Bench for HID Lamps ► Overview OVERVIEW Main components of the HID lamp test bench: POWER SOURCE TESLA PULSE A flexible power source, based on a general purpose, rapid-prototyping inverter unit 1 TESLA CONT. QUESTIONS Current or voltage control Waveforms: sine, triangle, square, noise,… A Tesla-transformer as a high-voltage test platform for cold or hot ignition of HID lamps 2 Burst pulses Continuous sine wave output voltage 2/21 COST Meeting Eindhoven

  3. A Versatile Test Bench for HID Lamps OVERVIEW ► Power source POWER SOURCE TESLA PULSE TESLA CONT. QUESTIONS 3/21 COST Meeting Eindhoven

  4. A Versatile Test Bench for HID Lamps ► Power source OVERVIEW Rapid-prototyping inverter unit contains 4 independent half-bridge modules POWER SOURCE TESLA PULSE TESLA CONT. QUESTIONS 4/21 COST Meeting Eindhoven

  5. A Versatile Test Bench for HID Lamps ► Power source OVERVIEW Rapid-prototyping inverter unit contains 4 independent half-bridge modules POWER SOURCE TESLA PULSE TESLA CONT. Power MOSFET devices: 400V / 16A QUESTIONS 5/21 COST Meeting Eindhoven

  6. A Versatile Test Bench for HID Lamps ► Power source OVERVIEW Rapid-prototyping inverter unit contains 4 independent half-bridge modules POWER SOURCE TESLA PULSE TESLA CONT. Power MOSFET devices: 400V / 16A QUESTIONS Controlled by Altera FPGA and TI DSP 6/21 COST Meeting Eindhoven

  7. A Versatile Test Bench for HID Lamps ► Power source OVERVIEW Rapid-prototyping inverter unit contains 4 independent half-bridge modules POWER SOURCE TESLA PULSE TESLA CONT. Power MOSFET devices: 400V / 16A QUESTIONS Controlled by Altera FPGA and TI DSP DSP communicates with host computer (Matlab Simulink real time model) Parameters can be changed in real time 7/21 COST Meeting Eindhoven

  8. A Versatile Test Bench for HID Lamps ► Power source ► Experimental setup OVERVIEW HID lamp connected through series inductor Lr POWER SOURCE Hysteretic current control TESLA PULSE TESLA CONT. Current control QUESTIONS Lr Rsh FPGA HID Rsh Bidirectional communication INVERTER PLATFORM • Independent control of half-bridge MOSFETs • Current measurement (500 ksamples/s ADC) in each channel • DC link voltage measurement 8/21 COST Meeting Eindhoven

  9. A Versatile Test Bench for HID Lamps ► Power source ► Experimental setup OVERVIEW DSP  Current reference, power control POWER SOURCE TESLA PULSE TESLA CONT. Power control Current control QUESTIONS Lr Rsh DSP FPGA HID Rsh INVERTER PLATFORM PC: Matlab Simulink model Real Time Workshop 9/21 COST Meeting Eindhoven

  10. A Versatile Test Bench for HID Lamps ► Power source ► Experimental setup OVERVIEW Isolated current and voltage measurement POWER SOURCE Feedback of lamp parameters to FPGA / DSP 1 Visualization of lamp parameters on host PC TESLA PULSE 2 TESLA CONT. Power control Current control QUESTIONS Lr Rsh I and V Measurement DSP FPGA HID Rsh INVERTER PLATFORM PC: Matlab Simulink model Real Time Workshop 10/21 COST Meeting Eindhoven

  11. A Versatile Test Bench for HID Lamps ► Power source ► Experimental setup OVERVIEW POWER SOURCE TESLA PULSE TESLA CONT. QUESTIONS 11/21 COST Meeting Eindhoven

  12. A Versatile Test Bench for HID Lamps ► Power source ► Experimental waveforms OVERVIEW Sinusoidal output current and output voltage POWER SOURCE TESLA PULSE TESLA CONT. QUESTIONS 12/21 COST Meeting Eindhoven

  13. A Versatile Test Bench for HID Lamps OVERVIEW POWER SOURCE ► Tesla transformer (pulsed mode) TESLA PULSE TESLA CONT. QUESTIONS 13/21 COST Meeting Eindhoven

  14. A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ►Spark gap OVERVIEW POWER SOURCE R1 TESLA PULSE L1 L2 VDC C1 C2 TESLA CONT. Vout S QUESTIONS Tesla transformer 22 w primary 1070 w secondary Air core  no saturation Two coupled LC resonating circuits: L1C1 – L2C2 C1 initially charged through R1 S (spark gap,…) closed  2x resonance 14/21 COST Meeting Eindhoven

  15. 20 kV 10 kV 0 kV -10 kV -20 kV Time 400us 0 A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Spark gap OVERVIEW Burst pulse of a few ms POWER SOURCE R1 TESLA PULSE L1 L2 VDC C1 C2 TESLA CONT. Vout S QUESTIONS 2 x resonance Non-sinusoidal waveform 15/21 COST Meeting Eindhoven

  16. A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Thyristor OVERVIEW POWER SOURCE R1 TESLA PULSE L1 L2 VDC C1 C2 TESLA CONT. Vout T QUESTIONS Thyristor Spark gap Ignition controllable Thyristor turn-off after first zero-crossing of current Only resonance in L2C2 Vout sinusoidal 16/21 COST Meeting Eindhoven

  17. 20 kV 10 kV 0 kV -10 kV -20 kV Time 400us 0 A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Thyristor OVERVIEW POWER SOURCE R1 TESLA PULSE L1 L2 VDC C1 C2 TESLA CONT. Vout T QUESTIONS - Amplitude: 0-19 kV - Frequency: 50-100 kHz - Pulse duration: ms range - Repetition rate: depends on R1 17/21 COST Meeting Eindhoven

  18. A Versatile Test Bench for HID Lamps OVERVIEW POWER SOURCE TESLA PULSE ► Tesla transformer (continuous mode) TESLA CONT. QUESTIONS 18/21 COST Meeting Eindhoven

  19. A Versatile Test Bench for HID Lamps ► Tesla transformer (continuous mode) OVERVIEW DC bus voltage POWER SOURCE TESLA PULSE L1 L2 C2 Vout Pulse generator Gate driver TESLA CONT. QUESTIONS Single resonance circuit L2C2 Circuit driven at resonance frequency Asymmetrical full-bridge driver  avoid shoot-through Amplitude: 0-15kV Frequency: kHz range 19/21 COST Meeting Eindhoven

  20. A Versatile Test Bench for HID Lamps ► Tesla transformer (continuous mode) OVERVIEW DC bus voltage POWER SOURCE TESLA PULSE L1 L2 C2 Vout Pulse generator Gate driver TESLA CONT. QUESTIONS I and V measurement Single resonance circuit L2C2 Circuit driven at resonance frequency Asymmetrical H-bridge driver  avoid shoot-through Amplitude: 0-15kV Frequency: kHz range 20/21 COST Meeting Eindhoven

  21. A Versatile Test Bench for HID Lamps ► Questions OVERVIEW POWER SOURCE TESLA PULSE Thank you for your attention TESLA CONT. ► Questions QUESTIONS 21/21 COST Meeting Eindhoven

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