National Synchrotron Radiation Research Center YS Wong, KB Liu (Team Leader) 2011/06/16 Quadrupole & Sextupole Magnet Power Supply of TPS (Taiwan Photon Source) Power supply team

National Synchrotron Radiation Research Center Outline  Introduction  Power Supply Circuit structure (Input state and Output state)  Experiments Result of Magnet Loading Programming Function Testing Capture Function Testing Long term stability Testing  Summary

National Synchrotron Radiation Research Center

Introduction Switch Mode Power Supply It is an electronic power supply that incorporates a switching device in order to be highly efficient in the conversion of electrical power A: input EMI filtering B: input filter capacitors; C: transformer; D: output filter coil; E: output filter capacitors.

Benefits of SPS (switch power supply) High efficiency and less heat generation (Linear mode power supply efficient 40~50%) (Switch mode power supply efficient 70~95%) Tighter regulation Smaller size

Switching Power Supply Application Power\Pro duction PCLaptop Compute r Server Communi cation IndustrialOtherTotal 1~100W9.46%0.18%3.50%0.02%7.92%21.08% 101~300 W 59.64%0.08%0.17%1.39%61.28% 301~500 W 8.02%0.08%0.17%1.19%9.46% 501~1000 W 7.04% 1001W~1.14% Total67.66%9.46%7.22%4.80%0.36%10.50%100.00%

Switching Power Supply Application Taiwan SPS Export Rate

Unit : Sale Volume (Million) Sale Value (Hundred million US) Sale Value (Hundred million US) Switching Power Supply Marketing

National Synchrotron Radiation Research Center

Power Supply Circuit structure Chroma 62075H-30 Front Panel Chroma 62075H-30 Rear Panel Quadrupole power supply(18bits) and Sextupole power supply(16bits)

National Synchrotron Radiation Research Center Power Supply Circuit structure Chroma 62075H-30 input state A B Input State A region : EMI filter and rectifier 380AC voltage pass to EMI filter and rectifier B region :Input Capacitor

National Synchrotron Radiation Research Center Power Supply Circuit structure Chroma 62075H-30 output state D E Output State C region : Power Switching (Full bridge structure) D region : Transformer E region : Output Capacitor F region : Control block C F

National Synchrotron Radiation Research Center Power Supply Circuit structure SpecificationUni-polar Power Supply Input Voltage3 phase 380V ±10% Current Control Range0~250 Ampere Voltage Control Range0~30 Voltage Maximum Output Power Energy7.5 kW Current Stability ±6.25mA p-p (0~30 mins) ±12.5mA p-p (0~8 hours) Output Noise (P-P)60mV Maximum Voltage Ripple (rms)15mV Maximum Current Ripple (rms)100mA Voltage Slew Rate Range0.001V~5V/ms Current Slew Rate Range0.001A~1A/ms or INF Specifications of the 62075H-30 power supply

National Synchrotron Radiation Research Center Magnet Loading Specification Booster Ring Qaudrupole Magnets Magnet designationQM No. of magnets48 Peak current82A Inductance2.03mH Resistance47m omh Specification of Booster Ring Qaudrupole Power supply Magnet designationQS Output (A/V)120A/+-425 Short term stability (0~30mins)+-5ppm/ +-0.6mA Long term stability (0~8 hours)+-10ppm/ +-1.2mA Resolution18bits

National Synchrotron Radiation Research Center Magnet Loading Specification Storage Ring Qaudrupole and Sextupole Magnets Magnet designationQMSM No. of magnets Peak current188A135A Inductance13.6/23.5mH5.8mH Resistance72.2/81.6m omh43.8m omh

National Synchrotron Radiation Research Center Magnet Loading Specification Specification of Storage Ring Qaudrupole and Sextupole Power supply Magnet designationQPSP Output (A/V)250A/30V Short term stability (0~30mins)+-1.25mA+-6.25mA Long term stability (0~8 hours)+-2.5mA+-12.5mA Resolution18bits16bits

National Synchrotron Radiation Research Center Power Supply Circuit structure Chroma 62075H-30 power supply in laboratory Magnet loading

National Synchrotron Radiation Research Center

Experiments Result of Magnet Loading PROG No = 1 RUN COUNT = 2 PROG CHAIN = No CLEAR PROG = No SEQ No = 1SEQ No = 2 Voltage = 10 (V) Current = 100 (A)Current = 250 (A) Time = (s) SEQ Type = AUTO V S. R. = (V/ms) I S. R. = (A/ms) Program sequence testing waveform Programming Function state 1 : output current 0 to100A at 5second state 2 : Output current 100A to 250A at 5 second

National Synchrotron Radiation Research Center Experiments Result of Magnet Loading Capture Function (1)Trigger INIT (2)Pre Trigger (3)Wait Trigger (4)Post Trigger (5)Trigger Finish

National Synchrotron Radiation Research Center Experiments Result of Magnet Loading Test Sampling Points = points Maximum Current Setting = 250A Capture Function Pre Trigger Post Trigger Additional a pulse signal in the machine at 5000 sampling points (Green Line) Capture 5000 points pre trigger data Capture 5000 points post trigger data

National Synchrotron Radiation Research Center LabVIEW SoftwaveOscilloscope Slew rate : 8A/s 0~50A OCP : 50A Experiments Result of Magnet Loading

National Synchrotron Radiation Research Center Long term output current ripple testing of 250A One module, output current 250A Output current ripple +- 20ppm (8 hours) Experiments Result of Magnet Loading

National Synchrotron Radiation Research Center Long term output current ripple testing of 500A Parallel 2 module, output current 500A Output current ripple +- 10ppm (8 hours) Experiments Result of Magnet Loading Power supply Maximum output current is 250A

National Synchrotron Radiation Research Center Long term current output ripple testing at 500A Connect current sharing line Connect system bus line Experiments Result of Magnet Loading

National Synchrotron Radiation Research Center Output current ripple and frequency bode plot I 250A =3.319mA I 500A =1.976mA I 750A =1.274mA I 1000A =0.817mA Experiments Result of Magnet Loading Maximum Current ripple 3.319mA when output current 250A

National Synchrotron Radiation Research Center

Summary (1)Low ripple output current will improvement magnet electric fields stability to NSRRC light source. (2)High digital controller design. (16bits / 18bits) (3)Smart remote control function (4)Smart detect function

National Synchrotron Radiation Research Center