Ludovic HORREIN SY EPC FPC Control structure design

Ludovic HORREIN SY - EPC - FPC

Control structure design of SIRIUS FP 2 P 2 S using EMR approach

System

Specific structure of SIRIUS FP BSW 42

Output Diode-Thyristor: Allows voltage step Diode: Avoid negative current during the opening time of the thyristor

EMR and Control

Description tool and EMR System Math. model Description Control EMR Simulation Control Description tool => - Simplify the interconnection between sub-models - Analyse state variables / energetic flows… EMR Description tool => - Allow interconnection following causality principle - Highlight action/reaction principle (energetic flows) - Systematic control structure design

Structural / Functional description System Math. model EMR Simulation Control Structural description Functional description Simulation => organisation following real structure => organisation following energetic function With current simulator based on ‘structural description’ (Simplorer, Sim. Pow. Syst) => Fast simulation files design, Large components library available, Easy to modify models (add phenomena) EMR is a functional description tool

EMR pictograms

Modelling, EMR and Control (IBC)

EMR Tuning path

IBC

Control IBC All control loops are designed independently Param of inversed model Desired local performance Possibility to test each loop progressively Constraint: Each loop must respects the dynamics separation criteria

Regulation Uinv_ref

Simulation (Simpower - IBC) Sensors DSP 10 MHz PWM 20 k. Hz 40 k. Hz / 80 k. Hz ADC

Simulation results (Simpower-IBC)

Implementation

Experimentation 1678 A Voltage (Uhf. AC+Uhf. BD) Magnet current erreur Magnet current

Experimentation 18 k. A Voltage (Uhf. AC+Uhf. BD) Magnet current erreur Magnet current

PWM: 2 niveaux / 20 k. Hz Comparisons Amplitude 1750 A 2000 A 2250 A 2500 A 1 boucle 1. 54% 1. 67% 2. 08% 2. 4% 2 boucles 0. 68% 0. 72% 0. 6% 0. 736% 3 boucles 0. 28% 0. 22% 0. 25% 0. 30% 3 boucles