# A dynamic model for the simulation of induction heating devices

## Abstract

Induction heating is an efficient, easily controlled method for the heating of electrically conductive objects in processes such as metal hardening or annealing. Here, a simulation procedure designed for the dynamic analysis of induction heating systems is described. The procedure starts from the FEM based evaluation of the load impedance. This, as a function of the heating time is transferred to the dynamic model describing the whole induction heating device, i.e., the power supply, its control system, the load and the impedance matching circuit. With the developed model the start-up of the heating process as well as quick transients, e.g., fault situations can be examined. The applicability of the model was tested in the design of the induction heating installation developed for the annealing of aluminium plates. Temperature error less than 5% has been achieved.

- Authors:

- Publication Date:

- Research Org.:
- Lappeenranta Univ. of Technology (FI)

- OSTI Identifier:
- 20000799

- Resource Type:
- Journal Article

- Journal Name:
- IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)

- Additional Journal Information:
- Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; METAL INDUSTRY; INDUCTION FURNACES; HEATING; MATHEMATICAL MODELS; EDDY CURRENTS; FINITE ELEMENT METHOD; IMPEDANCE; DESIGN; ANNEALING

### Citation Formats

```
Nerg, J., Tolsa, K., Silventoinen, P., Partanen, J., and Pyrhoenen, J.
```*A dynamic model for the simulation of induction heating devices*. United States: N. p., 1999.
Web. doi:10.1109/20.800600.

```
Nerg, J., Tolsa, K., Silventoinen, P., Partanen, J., & Pyrhoenen, J.
```*A dynamic model for the simulation of induction heating devices*. United States. doi:10.1109/20.800600.

```
Nerg, J., Tolsa, K., Silventoinen, P., Partanen, J., and Pyrhoenen, J. Wed .
"A dynamic model for the simulation of induction heating devices". United States. doi:10.1109/20.800600.
```

```
@article{osti_20000799,
```

title = {A dynamic model for the simulation of induction heating devices},

author = {Nerg, J. and Tolsa, K. and Silventoinen, P. and Partanen, J. and Pyrhoenen, J.},

abstractNote = {Induction heating is an efficient, easily controlled method for the heating of electrically conductive objects in processes such as metal hardening or annealing. Here, a simulation procedure designed for the dynamic analysis of induction heating systems is described. The procedure starts from the FEM based evaluation of the load impedance. This, as a function of the heating time is transferred to the dynamic model describing the whole induction heating device, i.e., the power supply, its control system, the load and the impedance matching circuit. With the developed model the start-up of the heating process as well as quick transients, e.g., fault situations can be examined. The applicability of the model was tested in the design of the induction heating installation developed for the annealing of aluminium plates. Temperature error less than 5% has been achieved.},

doi = {10.1109/20.800600},

journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},

issn = {0018-9464},

number = 5Pt2,

volume = 35,

place = {United States},

year = {1999},

month = {9}

}