Purpose In order to realize the control of current closed loop in HEPS corrector power supply,a digital control board is designed.Methods The control board uses the latest FPGA to realize digital processing and uses t...Purpose In order to realize the control of current closed loop in HEPS corrector power supply,a digital control board is designed.Methods The control board uses the latest FPGA to realize digital processing and uses two different AD chips to realize current and voltage sampling,respectively.In order to achieve high-precision closed-loop control,an effective closed-loop control program is designed.Results The controller has been widely used in HEPS projects,and its control effect has been proved.Conclusions In order to realize control and reduce power cost,the controller is designed.The testing experiments show that the controller has excellent performance,reliable operation and low cost.展开更多
Purpose High Energy Photon Source(HEPS)requires high quality,high energy beam and ultra-low emittance of 0.1 nm·rad,which puts forward high demand for power supply.In this paper,a high-performance corrector magne...Purpose High Energy Photon Source(HEPS)requires high quality,high energy beam and ultra-low emittance of 0.1 nm·rad,which puts forward high demand for power supply.In this paper,a high-performance corrector magnet power supply is developed to calibrate and adjust beam track within a certain bandwidth range to ensure the stability of beam track.Methods The prototype of power supply adopts the new"One control Two"control mode,which adjusts the performance of two power supplies simultaneously based on digital control.Results The experimental results show that the stability of the power supply is lower than 20 ppm,which is far better than the design index.Voltage ripple is less than 10 mV,and other performance indexes meet the physical design requirements,which can well meet the requirements of HEPS construction.Conclusions After a lot of experiments and tests,all the parameters passed the design indicators.The successful development of this power supply has laid a foundation for the successful application of HEPS.展开更多
文摘Purpose In order to realize the control of current closed loop in HEPS corrector power supply,a digital control board is designed.Methods The control board uses the latest FPGA to realize digital processing and uses two different AD chips to realize current and voltage sampling,respectively.In order to achieve high-precision closed-loop control,an effective closed-loop control program is designed.Results The controller has been widely used in HEPS projects,and its control effect has been proved.Conclusions In order to realize control and reduce power cost,the controller is designed.The testing experiments show that the controller has excellent performance,reliable operation and low cost.
基金supported byNationalNatural Science Foundation of China(12005236).
文摘Purpose High Energy Photon Source(HEPS)requires high quality,high energy beam and ultra-low emittance of 0.1 nm·rad,which puts forward high demand for power supply.In this paper,a high-performance corrector magnet power supply is developed to calibrate and adjust beam track within a certain bandwidth range to ensure the stability of beam track.Methods The prototype of power supply adopts the new"One control Two"control mode,which adjusts the performance of two power supplies simultaneously based on digital control.Results The experimental results show that the stability of the power supply is lower than 20 ppm,which is far better than the design index.Voltage ripple is less than 10 mV,and other performance indexes meet the physical design requirements,which can well meet the requirements of HEPS construction.Conclusions After a lot of experiments and tests,all the parameters passed the design indicators.The successful development of this power supply has laid a foundation for the successful application of HEPS.
