COST 529 Meeting Eindhoven A Versatile Test Bench
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 9/24/2020
A Versatile Test Bench for HID Lamps ► Overview OVERVIEW POWER SOURCE Main components of the HID lamp test bench: TESLA PULSE TESLA CONT. 1 QUESTIONS A flexible power source, based on a general purpose, rapid-prototyping inverter unit § § 2 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 § § COST Meeting Eindhoven 9/24/2020 Burst pulses Continuous sine wave output voltage 2/21
A Versatile Test Bench for HID Lamps OVERVIEW POWER SOURCE ► Power source TESLA PULSE TESLA CONT. QUESTIONS COST Meeting Eindhoven 9/24/2020 3/21
A Versatile Test Bench for HID Lamps ► Power source OVERVIEW POWER SOURCE TESLA PULSE § Rapid-prototyping inverter unit contains 4 independent half-bridge modules TESLA CONT. QUESTIONS COST Meeting Eindhoven 9/24/2020 4/21
A Versatile Test Bench for HID Lamps ► Power source OVERVIEW POWER SOURCE TESLA PULSE TESLA CONT. § Rapid-prototyping inverter unit contains 4 independent half-bridge modules § Power MOSFET devices: 400 V / 16 A QUESTIONS COST Meeting Eindhoven 9/24/2020 5/21
A Versatile Test Bench for HID Lamps ► Power source OVERVIEW POWER SOURCE TESLA PULSE TESLA CONT. § Rapid-prototyping inverter unit contains 4 independent half-bridge modules § Power MOSFET devices: 400 V / 16 A QUESTIONS § Controlled by Altera FPGA and TI DSP COST Meeting Eindhoven 9/24/2020 6/21
A Versatile Test Bench for HID Lamps ► Power source OVERVIEW POWER SOURCE TESLA PULSE TESLA CONT. § Rapid-prototyping inverter unit contains 4 independent half-bridge modules § Power MOSFET devices: 400 V / 16 A 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 COST Meeting Eindhoven 9/24/2020 7/21
A Versatile Test Bench for HID Lamps ► Power source OVERVIEW POWER SOURCE ► Experimental setup HID lamp connected through series inductor Lr Hysteretic current control TESLA PULSE TESLA CONT. Current control QUESTIONS Rsh FPGA Lr 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 COST Meeting Eindhoven 9/24/2020 8/21
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 Rsh DSP FPGA Lr HID Rsh INVERTER PLATFORM PC: Matlab Simulink model Real Time Workshop COST Meeting Eindhoven 9/24/2020 9/21
A Versatile Test Bench for HID Lamps ► Power source OVERVIEW ► Experimental setup Isolated current and voltage measurement POWER SOURCE 1 Feedback of lamp parameters to FPGA / DSP TESLA PULSE 2 Visualization of lamp parameters on host PC TESLA CONT. Power control Current control QUESTIONS Rsh DSP FPGA Lr HID Rsh I and V Measurement INVERTER PLATFORM PC: Matlab Simulink model Real Time Workshop COST Meeting Eindhoven 9/24/2020 10/21
A Versatile Test Bench for HID Lamps ► Power source ► Experimental setup OVERVIEW POWER SOURCE TESLA PULSE TESLA CONT. QUESTIONS COST Meeting Eindhoven 9/24/2020 11/21
A Versatile Test Bench for HID Lamps ► Power source ► Experimental waveforms OVERVIEW POWER SOURCE Sinusoidal output current and output voltage TESLA PULSE TESLA CONT. QUESTIONS COST Meeting Eindhoven 9/24/2020 12/21
A Versatile Test Bench for HID Lamps OVERVIEW POWER SOURCE TESLA PULSE ► Tesla transformer (pulsed mode) TESLA CONT. QUESTIONS COST Meeting Eindhoven 9/24/2020 13/21
A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Spark gap OVERVIEW POWER SOURCE R 1 TESLA PULSE VDC C 1 L 2 C 2 TESLA CONT. Vout S QUESTIONS § Tesla transformer § § § Two coupled LC resonating circuits: L 1 C 1 – L 2 C 2 22 w primary 1070 w secondary Air core no saturation C 1 initially charged through R 1 S (spark gap, …) closed 2 x resonance COST Meeting Eindhoven 9/24/2020 14/21
A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Spark gap OVERVIEW POWER SOURCE TESLA PULSE R 1 VDC C 1 L 1 TESLA CONT. L 2 C 2 Burst pulse of a few ms Vout S QUESTIONS 20 k. V 2 x resonance 10 k. V Non-sinusoidal waveform 0 k. V -10 k. V -20 k. V 0 COST Meeting Eindhoven 9/24/2020 Time 400 us 15/21
A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Thyristor OVERVIEW POWER SOURCE R 1 TESLA PULSE VDC C 1 L 2 C 2 TESLA CONT. Vout T QUESTIONS § Thyristor § § Spark gap Ignition controllable Thyristor turn-off after first zero-crossing of current Only resonance in L 2 C 2 COST Meeting Eindhoven 9/24/2020 Vout sinusoidal 16/21
A Versatile Test Bench for HID Lamps ► Tesla transformer (pulsed mode) ► Thyristor OVERVIEW POWER SOURCE TESLA PULSE R 1 VDC C 1 L 1 TESLA CONT. L 2 C 2 Vout T QUESTIONS - Amplitude: 20 k. V 0 -19 k. V - Frequency: 50 -100 k. Hz - Pulse duration: ms range 10 k. V -10 k. V - Repetition rate: depends on R 1 -20 k. V 0 COST Meeting Eindhoven 9/24/2020 Time 400 us 17/21
A Versatile Test Bench for HID Lamps OVERVIEW POWER SOURCE TESLA PULSE TESLA CONT. ► Tesla transformer (continuous mode) QUESTIONS COST Meeting Eindhoven 9/24/2020 18/21
A Versatile Test Bench for HID Lamps ► Tesla transformer (continuous mode) OVERVIEW DC bus voltage POWER SOURCE TESLA PULSE TESLA CONT. L 1 Pulse generator L 2 C 2 Vout Gate driver QUESTIONS § § Single resonance circuit L 2 C 2 Circuit driven at resonance frequency Asymmetrical full-bridge driver avoid shoot-through Amplitude: 0 -15 k. V COST Meeting Eindhoven 9/24/2020 Frequency: k. Hz range 19/21
A Versatile Test Bench for HID Lamps ► Tesla transformer (continuous mode) OVERVIEW DC bus voltage POWER SOURCE TESLA PULSE TESLA CONT. L 1 Pulse generator L 2 C 2 Vout Gate driver QUESTIONS I and V measurement § § Single resonance circuit L 2 C 2 Circuit driven at resonance frequency Asymmetrical H-bridge driver avoid shoot-through Amplitude: 0 -15 k. V COST Meeting Eindhoven 9/24/2020 Frequency: k. Hz range 20/21
A Versatile Test Bench for HID Lamps ► Questions OVERVIEW POWER SOURCE TESLA PULSE Thank you for your attention TESLA CONT. QUESTIONS ► Questions COST Meeting Eindhoven 9/24/2020 21/21
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