### Abstract

The sensorless version of the nonlinear control method will be presented in this paper. Torque control at different operating points will be demonstrated. A fast dynamic torque response will be presented for different types of loads. These loads will be changing linearly or nonlinearly with speed or can be applied as an abrupt step. Nonlinear feedback control of the induction motor is then used to obtain the solutions for these various conditions. A Voltage source inverter is used to feed the induction motor. The command values to the PWM algorithm are the stator current and frequency. A slip PI controller is used to develop the stator current frequency. This method makes it possible to avoid the calculation of the rotor angular speed. Thus, this paper introduces a significant innovation in the electrical drive system based on the nonlinear control theory of induction motors. Comprehensive simulation results corroborating the developed theory will be presented. The implementation of the system on a low cost, fixed point DSP is expected to be included in the final draft of this paper.

Original language | English |
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Title of host publication | IECON Proceedings (Industrial Electronics Conference) |

Pages | 630-634 |

Number of pages | 5 |

Volume | 3 |

Publication status | Published - 2001 |

Externally published | Yes |

Event | 27th Annual Conference of the IEEE Industrial Electronics Society IECON'2001 - Denver, CO, United States Duration: 29 Nov 2001 → 2 Dec 2001 |

### Other

Other | 27th Annual Conference of the IEEE Industrial Electronics Society IECON'2001 |
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Country | United States |

City | Denver, CO |

Period | 29/11/01 → 2/12/01 |

### Fingerprint

### Keywords

- Nonlinear feedback
- Sensorless control
- Torque control

### ASJC Scopus subject areas

- Control and Systems Engineering
- Electrical and Electronic Engineering

### Cite this

*IECON Proceedings (Industrial Electronics Conference)*(Vol. 3, pp. 630-634)

**Sensorless torque control of ac induction motors.** / Abu-Rub, Haitham; Guzinski, Jaroslaw; Ahmed, Shehab; Toliyat, Hamid A.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*IECON Proceedings (Industrial Electronics Conference).*vol. 3, pp. 630-634, 27th Annual Conference of the IEEE Industrial Electronics Society IECON'2001, Denver, CO, United States, 29/11/01.

}

TY - GEN

T1 - Sensorless torque control of ac induction motors

AU - Abu-Rub, Haitham

AU - Guzinski, Jaroslaw

AU - Ahmed, Shehab

AU - Toliyat, Hamid A.

PY - 2001

Y1 - 2001

N2 - The sensorless version of the nonlinear control method will be presented in this paper. Torque control at different operating points will be demonstrated. A fast dynamic torque response will be presented for different types of loads. These loads will be changing linearly or nonlinearly with speed or can be applied as an abrupt step. Nonlinear feedback control of the induction motor is then used to obtain the solutions for these various conditions. A Voltage source inverter is used to feed the induction motor. The command values to the PWM algorithm are the stator current and frequency. A slip PI controller is used to develop the stator current frequency. This method makes it possible to avoid the calculation of the rotor angular speed. Thus, this paper introduces a significant innovation in the electrical drive system based on the nonlinear control theory of induction motors. Comprehensive simulation results corroborating the developed theory will be presented. The implementation of the system on a low cost, fixed point DSP is expected to be included in the final draft of this paper.

AB - The sensorless version of the nonlinear control method will be presented in this paper. Torque control at different operating points will be demonstrated. A fast dynamic torque response will be presented for different types of loads. These loads will be changing linearly or nonlinearly with speed or can be applied as an abrupt step. Nonlinear feedback control of the induction motor is then used to obtain the solutions for these various conditions. A Voltage source inverter is used to feed the induction motor. The command values to the PWM algorithm are the stator current and frequency. A slip PI controller is used to develop the stator current frequency. This method makes it possible to avoid the calculation of the rotor angular speed. Thus, this paper introduces a significant innovation in the electrical drive system based on the nonlinear control theory of induction motors. Comprehensive simulation results corroborating the developed theory will be presented. The implementation of the system on a low cost, fixed point DSP is expected to be included in the final draft of this paper.

KW - Nonlinear feedback

KW - Sensorless control

KW - Torque control

UR - http://www.scopus.com/inward/record.url?scp=0035692657&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035692657&partnerID=8YFLogxK

M3 - Conference contribution

VL - 3

SP - 630

EP - 634

BT - IECON Proceedings (Industrial Electronics Conference)

ER -