**7. References**


Anorad Corp., New York, USA. (2001). *Rotary linear actuator*, U.S. Patent 6 215 206.

Yamamura, S. (1972). *Theory of Linear Induction Motors*, John Wiley & Sons.

Creppe, R. C, Ulson, J. A. C, Rodrigues, J. F. (2008). *Influence of Design Parameters on Linear Induction Motor End Effects*, *IEEE* Trans. Energy Convers*.*, vol. 23, no. 2, pp. 358–362 June. 2008.

**Chapter 0**

**Chapter 11**

**Electrical Parameter Identification**

Rodrigo Padilha Vieira, Rodrigo Zelir Azzolin, Cristiane Cauduro Gastaldini

This chapter addresses the problem of the electrical parameter identification of Single-Phase Induction Motor (SPIM). The knowledge of correct electrical parameters of SPIM allows a better representation of dynamic simulation of this machine. In addition, the identified parameters can improve the performance of the Field Oriented Control (FOC) and sensorless

Controlled induction motor drives have been employed on several appliances in the last decades. Commonly, the control schemes are based on the FOC and sensorless techniques. These methods are mainly applied to three-phase induction machine drives, and a wide number of papers, such as [5, 9, 10, 15, 19, 23, 26] have described such drives. On the other hand, for several years the SPIM has been used in residential appliances, mainly in low power and low cost applications such as in freezers and air conditioning, consuming extensive rate of electrical energy generated in the world. In most of these applications, the SPIM operates at fixed speed and is supplied directly from source grid. However, in the last few years several works have illustrated that the operation with variable speed can enhance the process efficiency achieved by the SPIM ([1, 4, 8, 31]). Furthermore, some other studies have presented high performance drives for SPIM using vector control and sensorless techniques, such as is presented in [7, 12, 18, 24] and [29]. However, these schemes applied on single-phase and three-phase induction motor drives need an accurate knowledge of all electrical parameters

As a consequence of the parameter variation and uncertainties of the machine, literature presents algorithms for computational parameter estimation of induction machines, mainly about three-phase induction machines ([3, 13, 20, 21, 27]). Some authors proposed an on-line

> ©2012 Vieira et al., licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0),which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly

©2012 Vieira et al., licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**of Single-Phase Induction Motor**

Additional information is available at the end of the chapter

**by RLS Algorithm**

and Hilton Abílio Gründling

http://dx.doi.org/10.5772/37664

techniques used in these systems.

machine to have a good performance.

cited.

**1. Introduction**

