2017
DOI: 10.1109/tec.2016.2609502
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Estimator of the Rotor Temperature of Induction Machine Based on Terminal Voltages and Currents

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Cited by 16 publications
(5 citation statements)
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“…However, the utilization of these sensors, especially for critical machine applications, can have considerable limitations due to the safety risks posed by the electrically conductive nature of the sensor material and the sensor installation complexity; further constraints arise from the physical dimensions of these sensors, which can prevent or significantly complicate the effective access to key thermal measurement locations of interest (e.g., windings slots) [27]. The conventional TC and RTD-based thermal sensing are additionally challenged where the monitoring of machine rotary components is concerned, suffering from installation and wiring complexity and challenges around data transmission between the rotating rotor and a stationary external sensing platform [28,29]. The application of FBG sensing to monitor the electric machine temperature, with its multitude of inherent advantages for sensing in confined and harsh environments, has been gaining attention as a viable alternative to traditional temperature sensing systems.…”
Section: Thermal Sensingmentioning
confidence: 99%
“…However, the utilization of these sensors, especially for critical machine applications, can have considerable limitations due to the safety risks posed by the electrically conductive nature of the sensor material and the sensor installation complexity; further constraints arise from the physical dimensions of these sensors, which can prevent or significantly complicate the effective access to key thermal measurement locations of interest (e.g., windings slots) [27]. The conventional TC and RTD-based thermal sensing are additionally challenged where the monitoring of machine rotary components is concerned, suffering from installation and wiring complexity and challenges around data transmission between the rotating rotor and a stationary external sensing platform [28,29]. The application of FBG sensing to monitor the electric machine temperature, with its multitude of inherent advantages for sensing in confined and harsh environments, has been gaining attention as a viable alternative to traditional temperature sensing systems.…”
Section: Thermal Sensingmentioning
confidence: 99%
“…Signal injection methods generally interfere with the internal operation of the machine by generating a torque ripple. In [19], the authors circumvent this problem by using on the one hand the inherent pulse width modulation (PWM) content resulting from the modulated supply voltage and on the other hand the measurement of the resulting current ripple to estimate the rotor temperature through changes in the absolute value of the input impedance at PWM frequencies. This method, however, is only accurate if the current ripple is high enough.…”
Section: Introductionmentioning
confidence: 99%
“…This however considerably increases the sensor structure size, which can be impractical where the machine geometries of interest for monitoring such as the slot areas are concerned, and can compromise vital design parameters [20]. As a consequence of the constraints imposed by the winding construction and the sensor structure and its wiring, the sensing points in which TC and RTD sensors are applied in LVEMs are typically on end-windings and more rarely on winding surface of the slot section, and not in the winding centre where the highest temperature is located [21], [22]. Further general constraints to more effective RTD and TC application in safety critical electrical machinery are imposed by their intrinsic low electromagnetic interference (EMI) immunity and low resistance to harsh environmental conditions and long term deployment [23].…”
Section: Introductionmentioning
confidence: 99%