Abstract
The paper describes a general method for preliminary design of fast-acting solenoid actuators. Moving armature, drive circuit and nonlinearities are modeled as well as eddy currents for solid iron devices. The electromagnetic model is obtained by computing two magnetization characteristics corresponding to the extreme positions of the armature and a novel interpolation function for the intermediate positions. This function, characterizing the magnetic configuration of the actuator, is computed analytically and leads also to an analytical formulation of the magnetic force. In order to achieve extremely fast computation eddy currents are modeled through a new type of electric equivalent network, derived directly from Maxwell's equations and taking into account the actual BH nonlinearities, moving armature and device geometry. The method is demonstrated on a pot-core solenoid actuator and compares favourably with finite element results and measurements.
| Original language | English |
|---|---|
| Pages (from-to) | 197-204 |
| Number of pages | 8 |
| Journal | Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) |
| Volume | 1 |
| State | Published - 1998 |
| Event | Proceedings of the 1998 IEEE Industry Applications Conference. Part 1 (of 3) - St.Louis, MO, USA Duration: Oct 12 1998 → Oct 15 1998 |
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering