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Bus current analysis of high power cryocooler's controller
- Source :
- SPIE Proceedings.
- Publication Year :
- 2017
- Publisher :
- SPIE, 2017.
-
Abstract
- Current analysis was an important research content for reducing power of cryocooler’s controller. Simulation was done among load current, H bridge current and power current refer to 42V bus power voltage. Then relationship among I L1 , I C1 , ρ and I M1 was established. Simulation results indicate that I L1-max , I L1-ave , I L1-rms , I C1-min and IC1-ave were linearly increasing to ρ and I M1 , especially I L1-rms ≈ 0.612ρ I M1-max . I C1-rms increase firstly then decrease with the increasing of ρ. I C1-rms reaches maximum when ρ=0.8, then I CL-rms =(12.32/R M1 + 0.98) exp -((ρ-0.78)/0.57) 2 . The results were useful for miniaturizing cryocooler’s controller.
Details
- ISSN :
- 0277786X
- Database :
- OpenAIRE
- Journal :
- SPIE Proceedings
- Accession number :
- edsair.doi...........5feb5dfa54d1cb9d7578b0a929cda1e3