High Energy Photon Source (HEPS) is one of the ten major scientific and technological infrastructures identified in the 13th Five-Year Plan for National Major Scientific and Technological Infrastructure Construction.
HEPS is a high-performance high-energy synchrotron radiation light source with an electron energy of 6 GeV, which mainly consists of accelerators, beamlines and experimental stations. As the fourth-generation synchrotron radiation light source in China, HEPS will be the first high-energy synchrotron radiation light source owned by China. HEPS is internationally advanced, and its main performance indexes rank among the top in the world. It has the highest spectral brightness in the world, which is higher than that of existing light sources and those under construction or to be constructed in the world.
In December 2020, Actionpower successfully undertook the design and manufacturing of a total of 128 power supplies through bidding, such as HEPS enhancer two-quadrupole magnet power supply, HEPS enhancer hexapole magnet power supply, HEPS intensifier correction magnet supply, HEPS storage ring hexapole and octupole magnet power supply, and HEPS high-energy transport line dipole magnet power supply. In May 2022, all indicators were qualified and the factory acceptance was successfully completed. At present, the power supply has been transported to HEPS Park in Huairou District of Beijing. After the site conditions are met, it will be installed in place and connected for commissioning.
Technical Parameters:
Working mode: trapezoidal wave pulse
Output peak current: 900A
Output peak voltage: 900V
Average output power: 300kW
DC stability of output current: 300ppm
Output current accuracy: 300ppm
Maximum output current change rate: 4000A/s
Output current tracking accuracy: 900ppm
Inflection point tracking accuracy: 1500ppm
Output voltage ripple peak-to-peak value: 200mV
Effective value of output voltage ripple: low frequency 10mmV, high frequency 20mV
The photos of the power supply unit are as follows:
Technical Parameters:
Working mode: arbitrary waveform
Output peak current: ±20A
Output peak voltage: ±28V
Average output power: 500W
DC stability of output current: 300ppm
Output current accuracy: 300ppm
Maximum output current change rate: 400A/s
Output current tracking accuracy: 1500ppm
Output voltage ripple peak-to-peak value: 200mV
The effective value of output voltage ripple: low-frequency 5mmV, high-frequency 10mV
The photos of the power supply unit are as follows:
Photos of stand-alone equipment are as follows:
Technical Parameters:
Working mode: unidirectional DC
Output peak current: 400A
Output peak voltage: 350V
Average output power: 140kW
DC stability of output current: 40ppm
Output current repeatability: 50ppm
Output current accuracy: 100ppm
Output voltage ripple peak-to-peak value: 200mV
The effective value of output voltage ripple: low-frequency 5mmV, high-frequency 10mV
Photos of the complete machine are as follows:
