磁共振成像仪供电电源的设计与应用

Research on the design and application of MRI machine power supply

目的:为保证磁共振成像(MRI)仪稳定工作,科学合理地设计供电电源和供电控制回路。方法:依据国家标准"民用建设电气设计规范"对MRI供配电系统、接地及安全防护系统进行设计。结果:1.5T超导MRI设备在安装前对供电系统及控制回路进行认真规范的设计,对重点指标采取≥50%的额定余量,使该设备运行稳定,取得了良好的社会效益和经济效益。结论:通过对MRI供电系统的规范设计、实施,满足了MRI设备供电电源的电压、频率、电流、供电线路以及低压配电装置等基本要素的需要,使供电系统安全、可靠、合理地运行。

Objective：To guarantee the stability of equipment work,the scientific and reasonable design of power supply and power supply control circuit is necessary.Methods：According to “civil construction electrical design specification” and other related specifications,for MR power supply and distribution system,grounding and safety protection system design.Results：Our introduction of 1.5T superconducting MR before installation,careful specification of power supply system and control circuit design,the key indicators to take 50％ of the rated or allowance,and the problems encountered in practical operation are timely processing,make the equipment operation is stable and achieved good social benefits and economic benefits.Conclusion：By 1.5 T MR the specification of the power supply system design,implementation,and makes the power supply voltage,frequency,current and power supply circuit,the basic elements such as low voltage power distribution equipment meets the need of MR device,make for point system safe,reliable and reasonable operation,provided the basis for future similar projects.