New flatness-based control of a high-voltage generator for medical X-ray applications
- Author(s): Tobias Barth 1 ; Jens Weber 1 ; Oliver Woywode 2 ; Steffen Bernet 1
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View affiliations
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Affiliations:
1:
Technische Universität Dresden, Chair of Power Electronics , 01062 Dresden , Germany ;
2: Royal Philips, BU Generators, Tubes, Components, Advanced Development , Hamburg , Germany
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Affiliations:
1:
Technische Universität Dresden, Chair of Power Electronics , 01062 Dresden , Germany ;
- Source:
Volume 2018, Issue 11,
November
2018,
p.
1799 – 1805
DOI: 10.1049/joe.2018.5038 , Online ISSN 2051-3305
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This study presents a new flatness-based control scheme for the quantum series–parallel LCC-type resonant converter with output voltage doubler for high-voltage pulse applications, like medical X-ray imaging. Based on a previously derived continuous time model of the system, a flat output of the system model is shown. Moreover, an optimised trajectory planning algorithm with limited resonant current and the controller design are addressed. Details on the experimental set-up and the real-time controller implementation on an FPGA are given. Measurement results show the accuracy of the presented control method.
Inspec keywords: pulse generators; path planning; biomedical electronics; control system synthesis; resonant power convertors; voltage multipliers; X-ray imaging; trajectory control
Other keywords: medical X-ray imaging; high-voltage pulse applications; medical X-ray applications; FPGA; real-time controller; continuous time model; optimised trajectory planning algorithm; controller design; system model; output voltage doubler; flatness-based control scheme; resonant current; high-voltage generator; quantum series–parallel LCC-type resonant converter
Subjects: Control system analysis and synthesis methods; X-ray techniques: radiography and computed tomography (biomedical imaging/measurement); Power electronics, supply and supervisory circuits; Pulse generators; Spatial variables control; Other analogue circuits
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