Advances in motor and generator rotor health

Maughan, Clyde V.; Reschovsky, John M.

doi:10.1109/elinsl.2010.5549730

Cited by 15 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To overcome these challenges due to temperature, PM flux linkage parameter variation needs to be obtained, which cannot be directly measured. Even the infrared thermography (limited to surface magnet) is not a viable solution for measuring PM flux linkage of IPMSM due to the high cost and construction drawbacks depending on magnets and winding temperature [10]. In addition, the extra sensors do not work during motor operation for thermal modelling [11].…”

Section: Related Workmentioning

confidence: 99%

Virtual Sensor Using a Super Twisting Algorithm Based Uniform Robust Exact Differentiator for Electric Vehicles

et al. 2022

View full text Add to dashboard Cite

The highly efficient Interior Permanent Magnet Synchronous Motor (IPMSM) is ubiquitous choice in Electric Vehicles (EVs) for today’s automotive industry. IPMSM control requires accurate knowledge of an immeasurable critical Permanent Magnet (PM) flux linkage parameter. The PM flux linkage is highly influenced by operating temperature which results in torque derating and hence power loss, unable to meet road loads and reduced life span of electrified powertrain in EVs. In this paper, novel virtual sensing scheme for estimating PM flux linkage through measured stator currents is designed for an IPMSM centric electrified powertrain. The proposed design is based on a Uniform Robust Exact Differentiator (URED) centric Super Twisting Algorithm (STA), which ensures robustness and finite-time convergence of the time derivative of the quadrature axis stator current of IPMSM. Moreover, URED is able to eliminate chattering without sacrificing robustness and precision. The proposed design detects variation in PM flux linkage due to change in operating temperature and hence is also able to establish characteristics of fault detection. The effectiveness and accuracy in different operating environments of the proposed scheme for nonlinear mathematical IPMSM model with complex EV dynamics are verified thorough extensive simulation experiments using MATLAB/Simulink.

show abstract

Section: Related Workmentioning

confidence: 99%

Virtual Sensor Using a Super Twisting Algorithm Based Uniform Robust Exact Differentiator for Electric Vehicles

et al. 2022

View full text Add to dashboard Cite

show abstract

“…One reason for this may be related to the cost/reliability and difficulty of instrumentation of the rotating part. Even if nowadays RF, Wi-Fi and slip rings are commonly used and some commercial systems exist [2], there is still reluctance in the industry to add sensors to generators, especially on the rotor.…”

Section: Introductionmentioning

confidence: 99%

On-line rotor temperature measurements

Hudon

Lévesque

Torriano

et al. 2014

2014 IEEE Electrical Insulation Conference (EIC)

View full text Add to dashboard Cite

On-line temperature measurements on hydrogenerators are usually limited to those read by resistive thermal detectors (RTD) on stators and global temperature of the cooling air and water at the input and output of the heat exchangers. Data shows that the proportion of generators where the temperature rise on the rotor is larger than on the stator is non negligible. With such units, temperature monitoring of the rotor should be considered. This paper presents the characterization of an infra-red thermal sensor installed on the stator side to measure the rotor. A single sensor can therefore scan every pole passing in front of it. Preliminary measurements on generators owned by Hydro-Québec (HQ) and Électricité de France (EDF) are presented along with details on the characterization at HQ's research laboratories (IREQ) in a controlled environment.

show abstract

“…As a consequence, the probability of a second ground fault increases. If this happens, part of the field winding will be short circuited, and current in the rest of it increases, generating in some cases heat enough to melt the rotor iron ( [13], [14]). This partial short circuit will produce unbalanced fluxes at the air gap of the rotor, with the consequent vibrations and unbalance in the stator voltage.…”

Section: Introductionmentioning

confidence: 99%

Influence of rotor capacitance in on-line rotor ground fault location method for synchronous machines with static excitation

Blánquez

Aranda

Rebollo

et al. 2013

2013 13th International Conference on Environment and Electrical Engineering (EEEIC)

View full text Add to dashboard Cite

This paper presents results about the influence of rotor capacitance in the on-line rotor ground fault location method for synchronous machines with static excitation. The location method is based on the measurement of the voltage in a grounding resistance, connected to the neutral of the excitation transformer. Due to the effect of the rotor capacitance to ground on large synchronous generators, it is observed that waveform of the neutral voltage is perturbed, and it causes an error in the fault location in case of defect in the DC side. Firstly, the influence of the fault resistance value and the fault position is evaluated through computer simulations. Then, the impact of the rotor capacitance in the accuracy of the detection and location method is analyzed in case of ground fault, as well as in healthy operating condition. Index Terms-AC generator excitation, capacitance, fault location, power generation protection, rotor , synchronous generator excitation.NOMENCLATURE V Grounding resistance voltage. V f Field voltage. R g Grounding resistance. R f Fault resistance. V fac AC component of the excitation voltage. V fdc DC component of the excitation voltage. V ac V dc AC component of grounding resistance voltage. DC component of grounding resistance voltage. X (%) Rotor winding position expressed in percent. C r V dc0

show abstract

Advances in motor and generator rotor health

Cited by 15 publications

References 0 publications

Virtual Sensor Using a Super Twisting Algorithm Based Uniform Robust Exact Differentiator for Electric Vehicles

Virtual Sensor Using a Super Twisting Algorithm Based Uniform Robust Exact Differentiator for Electric Vehicles

On-line rotor temperature measurements

Influence of rotor capacitance in on-line rotor ground fault location method for synchronous machines with static excitation

Contact Info

Product

Resources

About