Rotor demagnetization effects on permanent magnet synchronous machines

Ruschetti, Cristian; Verucchi, Carlos; Bossio, Guillermo R.; Angelo, Cristian H. De; García, Guillermo

doi:10.1016/j.enconman.2013.05.001

Cited by 45 publications

(35 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Accurate representation of the thermal behavior of such a machine during the developmental stage is critical to ensure its eventual safe and reliable operation. For instance, magnet over temperature can cause permanent demagnetization and adversely affect the performance of the machine [3]. Prototype development and full scale testing of such a machine is not always economical and can be time consuming [4].…”

Section: Introductionmentioning

confidence: 99%

Conjugate heat transfer analysis of an energy conversion device with an updated numerical model obtained through inverse identification

Hey

Malloy²,

Martinez-Botas

et al. 2015

Energy Conversion and Management

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Conjugate heat transfer analysis of an energy conversion device with an updated numerical model obtained through inverse identification

Hey

Malloy²,

Martinez-Botas

et al. 2015

Energy Conversion and Management

View full text Add to dashboard Cite

“…Similarly, if load is of resistive type, the current also tends to decrease. It becomes impossible to notice the frequency components that are associated to fault, whereas only the decreased total flux linked to the windings can be observed [21]. R.B.…”

Section: Faults and Protectionmentioning

confidence: 99%

“…Cristian Ruschetti, et al, (2013) presented the impacts of asymmetrical magnet faults on the PMSG rotor. The common attributes leading to rotor faults are eccentricity, damage in any of the magnets, asymmetries and mechanical looseness.…”

Section: Faults and Protectionmentioning

confidence: 99%

Conceptual Framework of Antecedents to Trends on Permanent Magnet Synchronous Generators for Wind Energy Conversion System

Padmanathan¹,

Uma²,

Ramachandaramurthy³

et al. 2017

Preprint

View full text Add to dashboard Cite

Abstract:The Wind Energy Conversion System (WECS) plays an inevitable role across the world. In particular, the attention for Permanent Magnet Synchronous Generators (PMSGs) connected with wind farm is popular. This paper deals with the literature review that describes the recent advances, progresses and innovatory trends on PMSGs for WECS. Comparison between geared and direct-driven conversion systems and the classification of electrical machines used in WECS are discussed. A detailed analysis on the design aspects considering various topologies of PMSGs are encompassed in the literature. The PMSG design and optimization problems are solved by field computation techniques and optimized by using Soft Computing (SC) techniques .The threedimensional, finite element software platform for the analysis and design of PMSGs is discussed. This paper also deals with the interdisciplinary modeling, analysis, and optimization of PMSG using Finite Element Analysis (FEM) and SC techniques. Finally, PMSGs are reviewed and compared for further exploration.

show abstract

“…Faults in electrical machines is a common research topic, and there are several studies on demagnetization during different kinds of overload conditions [7,18,19]. However, it is very hard to recognize all possible faults, not only from a technical but also from an economical point of view.…”

Section: Introductionmentioning

confidence: 99%

“…The spectrum of the current can be analyzed to determine abnormal frequency components due to, for example, air gap eccentricity [1,2] or partial demagnetization [3][4][5][6][7][8]. This method can be used on machines in production environments for continuous monitoring.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Permanent Magnet Demagnetization in Synchronous Machines during Multiple Short-Circuit Fault Conditions

Sjökvist

Eriksson

2017

Energies

View full text Add to dashboard Cite

Faults in electrical machines can vary in severity and affect different parts of the machine. This study focuses on various kinds of short-circuits on the terminal side of a generic 20 kW surface mounted permanent magnet synchronous generator and how successive faults affect the performance of the machine. The study was conducted with the commercially available finite element method software COMSOL Multiphysics R , and two time-dependent models for demagnetization of permanent magnets were compared, one using only internal models and the other using a proprietary external function. The study is simulation based and the two models were compared to a previously experimentally verified stationary model. Results showed that the power output decreased by more than 30% after five successive faults. In addition, the no-load voltage had become unsymmetrical, which was explained by the uneven demagnetization of the permanent magnets. The permanent magnet with the lowest reduction in average remanence was decreased by 0.8%, while the highest average reduction was 23.8% in another permanent magnet. The internal simulation model was about four times faster than the external model, but slightly overestimated the demagnetization.

show abstract

Rotor demagnetization effects on permanent magnet synchronous machines

Cited by 45 publications

References 24 publications

Conjugate heat transfer analysis of an energy conversion device with an updated numerical model obtained through inverse identification

Conjugate heat transfer analysis of an energy conversion device with an updated numerical model obtained through inverse identification

Conceptual Framework of Antecedents to Trends on Permanent Magnet Synchronous Generators for Wind Energy Conversion System

Investigation of Permanent Magnet Demagnetization in Synchronous Machines during Multiple Short-Circuit Fault Conditions

Contact Info

Product

Resources

About