«EMR of a Supply System for Medical Application»

Transcription

1 EMR 17 University Lille 1 June 2017 Summer School EMR 17 Energetic Macroscopic Representation «EMR of a Supply System for Medical Application» Prof. Philippe BARRADE HES-SO Valais/Wallis, Switzerland University of Applied Sciences Western Switzerland

2 - Outline Introduction 2. EMR for the identification of sizing criteria Maximal conversion structure EMR and IBC From strategy to design criteria 3. From the functionality to the design Conventional design Function identification From the function to the structure 4. Conclusion

3 EMR 17 University Lille 1 June 2017 Summer School EMR 17 Energetic Macroscopic Representation «Introduction»

4 - General context - Design the supply of a system for radiography (X-rays radiography) 4 Low Voltage Single Phase AC grid Low Voltage (Batts./PVs) Supply Systems VSI + Xray tube (+ heating system) Teleoptics + Imaging Detector Auxiliaries + Computers & Monitors

5 - Requirements and Constraints - 5 Main requirements Low Voltage AC grid (230V@50Hz): max 500W, complies with standard EMC requirements Low Voltage (12V-48V): max 500W, galvanic insulation X-ray system: 75 constant heating process Up to 2kW for pre-heating process plus anod start-up (3sec) Up to 30kW for X-ray generation from 0.5sec up to 1 sec Auxiliaries: fed by voltage (24V), up to 250W Constraints Developed for Africa (costs, reliability, maintenance free/easy) Must include energy storage (power and energy buffer)

6 - Developments - 6 First system: AC grid is weak «Full options» solution Integration of batteries and supercaps All the needs must be assumed by the Supply System to be designed Second System: AC grid is stable «low cost solution» Integration of supercaps only The Supply System will cover only the needs for the X-ray tube

7 EMR 17 University Lille 1 June 2017 Summer School EMR 17 Energetic Macroscopic Representation «EMR for the identification of sizing criteria»

8 - Maximal Conversion Structure (1) - 8 For the «Full options» solution Which kind of conversion structure? Where can the battery and the supercapacitors be inserted? Activity on the system structure level How to be sure to not forget a solution or a possibility Maximal Conversion Structure (in a macroscopic approach)

9 - Maximal Conversion Structure (2) - 9 bus AC AC AC Aux 1 AC AC Aux 2 AC AC 230V/110V 50/60Hz AC 230V/110V 50/60Hz 230V/110V 50/60Hz AC AC X-rays 230V/110V 50/60Hz

10 - Maximal Conversion Structure (3) - 10 After simplifications. Conversion system is still presented through the functions to be implemented

11 - EMR and IBC (1) - 11 If the functions to be implemented are identified Use of EMR and IBC to identify Voltage/Current, Power/energy constraints

12 - EMR and IBC (2) - 12 Thanks to the implementation of different strategies Various scenarios are evaluated, constraints are identified Used to size the battery and the supercapacitors

13 EMR 17 University Lille 1 June 2017 Summer School EMR 17 Energetic Macroscopic Representation «From the functionality to the design»

14 - Conventional design - 14 For the «low cost solution» solution Supercapacitors charger Max Power 500W, Power Factor Correction Let s the «Power Electronicians» play! i r Redr. Buck I L L,r Boost I scap u r C U L U 1 U 2 U scap C scap d 1 d 2 I scap_ref * * + - Controler d 1 =d 2 PFC I L_mes

15 - Function identification - Merge of EMR methodology and design rules in Power Electronics 15 L C L s u r U 1 I L I c1 U c U 3 I scap u r C scap i r I L U 2 U c I c2 I scap U scap d 1 d 2 U 2_ref U 3_ref I scap_ref I L_ref I c1_ref U c_ref L C L s u r i r I c1 U c U 3 I scap u r i r U 2 U c I c2 d 2 I scap U scap C scap f m U 2_ref U 3_ref I scap_ref I L_ref I c1_ref U c_ref

16 - From the function to the structure (1) - Convert EMR into structural representation 16 L C L s u r U 1 I L I c1 U c U 3 I scap u r i r I L U 2 U c I c2 d 2 I scap U scap C scap d 1 U 2_ref U 3_ref I scap_ref I L_ref I c1_ref U c_ref Redr. i Buck r L,r Boost I c1 I c1 L s,r s I L I scap u r U 1 U 2 C U 3 U scap C scap d 1 d 2

17 Structure actually under development - From the function to the structure (2) - 17

18 EMR 17 University Lille 1 June 2017 Summer School EMR 17 Energetic Macroscopic Representation «Conclusion»

19 EMR 17 University Lille 1 June 2017 Summer School EMR 17 Energetic Macroscopic Representation «Conclusion» EMR has been used to test various scenarios Aiming at size various storage elements EMR has been used to identify a conversion structure From the function to the conversion structure Association rules have been used Enable keeping physical causality in conflict of association, Linked with design rules in power electronics

20 - Title of the slide - 20 Prof. P. Barrade Institute for Systems Engineering University of Applied Sciences Western Switzerland PhD in Electrical Engineering at University of Toulouse (1997) Research topics: Power Electronics, Energy Storage, HIL Simulation, Hybrid Systems