DESIGN OF REAL-WORLD ELECTRICAL ENGINEERING PRODUCTS USING FRONT-END 3D SIMULATION & OPTIMIZATION TECHNOLOGIES
POLOPT/ Optim: Module for Free-Form Optimization
Task: Minimize the maximal field quantities appearing directly on the interface between different media (electrode-dielectric) by changing the form of those interfaces.
Main application: Dielectric design of electrical apparatus (breakers, transformers, sensors, …)
- Improve design to avoid possible breakdowns (breaker, transformers)
- Make devices more compact and secure (all kind of electrical equipment)
- Increase operational performances (sensor optimization)
Please, contact us for more info…
POLOPT/ Optim: Module for Free-Form Optimization
Direct Optimization
Case study 1 : Optimization of the shielding electrodes in GCB
- Automatic creation of the shielding electrodes is achieved
- The distance between the contacts being on opposite voltage is reduced for 72%
- On-line control of dielectric criteria guaranties that the breakdown can't appear for the optimal forms
- The final optimal shape is transferred back to CAD to enable easy manufacturing.
- The experimental validation of the new optimal configuration is done in HV lab.
- The experimental validation has entirely confirmed the simulation / optimization output.
Free-form optimization of the shielding electrodes.Dielectric criteria are on-line checked during the optimization process through the post-processing evaluation of the field lines in order to fulfil the required BIL standard.
POLOPT/ Optim: Module for Free-Form Optimization
Direct Optimization
Case study 2: Optimization of exterior connecting parts in three-phase circuit breaker
- Optimization of exterior connecting parts in three-phase circuit breaker
- Through an automatic optimization procedure the shape of the most critical parts is changed to provide the minimal field strength
- The animation illustrates the generation of the optimal form of the connecting parts through an iterative optimization algorithm used in POLOPT/Optim
- The field reduction at the most critical position is higher than 40%
Optimization in circuit-breaker design, Courtesy ABB
POLOPT/ Optim: Module for Free-Form Optimization
Direct Optimization
Case study 3: Optimization of the capacitor head in GCB
- Optimization of the capacitor head in the generator circuit breaker (GCB)
- Initial cylindrical form is converted through the automatic optimization procedure to the optimal shape
- The absolute minimal field strength is obtained thanks to the fact that global optimum is reached
- The animation illustrates the generation of the optimal form of the capacitor head through an iterative optimization algorithm used in POLOPT/Optim
POLOPT/ Optim: Module for Free-Form Optimization, Direct Optimization
Case study 4 : Multi-load optimization of exterior connecting parts in three-phase circuit breaker
- Multi-load optimization has been performed for three different operations cases: load case 1, 2 and 3.
- Optimal shape for each load case differ significantly from case to case
- Optimal shape for one load-case typically doesn’t correspond to the optimal shape for the another load cases
- Applying multi-load optimization procedure in POLOPT/Optim it is possible to achieved the optimal shape fulfilling the optimality condition simultaneously for all three operational conditions
