OPTIMIZATION STRATEGY OF DISTORTION RATE CONTROL FOR HIGH POWER TRANSFER SUPPLYING AN X-RAY TUBE

Rachedi Mohamed – Bourahla Mohamed

   This paper mainly concerns a contribution in the art development of high power generator supplying an X-ray tube for medical use. A generic method is proposed to reduce thermal stresses induced in X-ray tube during successive doses. For such application resonant DC-DC converter should be required, which generate output voltage and load current strictly identical to reference signal accompanied with normalized power factor quality. Primordially an adequate structure active filter connected in parallel at load lover is used to adjust the input and out put current distortion rate. With fuzzy logic control strategy, out put characteristics in transient and steady state are integrally mastery. This robust control type permits successive and repetitive taken measurement of radiology.

Keywords: X-ray tube, DC-DC resonant converter, high frequency transformer, active filter, distortion rate, robust control

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