摘要
The SSRF (Shanghai Synchrotron Radiation Facility) home-made digital power supply controller adopts advanced DSP and FPGA as core and precision ADC as data acquisition unit.The controller which is inlaid in the power supply case is composed of two cards of ADC and DSP.The controller can communicate with IOC by optical fiber through the UART port.The controller can easily change the parameter of the power supply to achieve high stability and repetition.As a replacement of the imported PSI controller,the controller is mainly used in the SSRF media power supply (stability less than 100ppm),and can match all of the specifications.
该国产数字化电源控制器采用先进的DSP和FPGA作为控制核心,采用了高精度的ADC作为数据采集单元,并且将模拟量和数字量进行有效的隔离,设计了较为先进的PID控制算法.控制器由DSP和ADC两块控制卡组成,嵌入电源,和电源有机地融成一体.控制器通过光纤与远程IOC进行实时通讯,通过本地PC机串行口可灵活调节电源回路参数,具有高稳定性和高重复性等优点.迄今为止该控制器作为进口瑞士PSI控制卡的替换产品,主要应用在SSRF的静态的中小功率开关电源上(100ppm以下),各项指标均能满足使用要求.与进口控制器相比,该控制器有较高的性价比.
