Results 31 to 40 of about 341,327 (174)
Journal of Field Robotics, Volume 42, Issue 5, Page 1840-1860, August 2025.ABSTRACT Typically, batteries are the main power source for mobile robots, and the practical constraints in carrying them pose challenges in achieving efficiency, autonomy, and safety objectives in robotic missions. Moreover, dealing with battery degradation requires a precise understanding of energy consumers' behavior in the system.
Parham Haji Ali Mohamadi +3 more
wiley +1 more source
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.Elevated operating temperatures in permanent magnet synchronous motors (PMSMs) induce performance degradation due to partial demagnetization of the permanent magnets and accelerated aging of the insulation system. Effective thermal management is, therefore, critical for ensuring optimal motor performance and longevity.
Tohid Sharifi
wiley +1 more source
Assessment of Parameter Estimation Methods for Nonintrusive Loss Estimation of Induction Motors
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.Nine methods for induction motor equivalent circuit parameter estimation from catalogue data for on‐site loss estimation are assessed. The combination of high accuracy and total absence of nonphysical results is not found in any of the tested methods. The case study of loss estimation with tested motors shows that good accuracy is achievable as long as
Carlos A. C. Wengerkievicz +4 more
wiley +1 more source
Applied SciencesThis paper presents comparable sets of the no-load power loss as a product of windage and churning behaviors of a family of various rotating parts (i.e., disc, spur gear, straight bevel gear, and orthogonal face gear).
Yu Dai, Caihua Yang, He Liu, Xiang Zhu
doaj +1 more source
Innovative Blade‐Structured Rotor Design for Enhanced Self‐Cooling in Permanent Magnet Machines
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.This paper proposes a novel self‐cooling solution for surface‐mounted permanent magnet machines using a blade‐structured rotor that draws cooling air through the machine during operation. The design effectively removes heat from critical components, such as end‐windings and magnets, without additional fans or wafters.
Kaile Li, Guang‐Jin Li
wiley +1 more source
Forced Air‐Cooling of Modular Flux Switching PM Machines Using Flux Gaps as Cooling Channels
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.This paper investigates the thermal performance of modular flux‐switching permanent magnet (FSPM) machines under forced air cooling, highlighting the role of flux gaps between segmented stator cores as additional cooling channels. 3D CFD simulations and experiments show that a 4‐mm flux gap achieves optimal cooling under constant pressure loss, whereas
Guan‐Bo Zhang, Guang‐Jin Li
wiley +1 more source
Strojniški vestnik - Journal of Mechanical Engineering, 2023 With the increasing speed of aviation spiral bevel gears, the load-independent windage power losses caused by hydrodynamic have increasingly more influence on gear transmission efficiency. Firstly, a test rig for the windage power loss of spiral bevel gear under oil-jet lubrication is established, and on this basis, a method for measuring windage ...
Li, Linlin, Wang, Sanmin
openaire +2 more sources
IET Energy Systems Integration, Volume 7, Issue 1, January/December 2025.ABSTRACT The virtual synchronous generator (VSG) concept is implemented to mimic the properties of synchronous generators and therefore improve the stability of modern power systems. Superconducting magnetic energy storage (SMES) is able to rapidly absorb power in the case of a fault and becomes completely charged due to capacity constraints.
Abdul Waheed Kumar +2 more
wiley +1 more source
IET Smart Grid, Volume 8, Issue 1, January/December 2025.This paper examines the implications of Eskom's, electricity utility of South Africa, move from centralised bulk electricity generation to a decentralised small‐scale generation model. Eskom's transition will significantly affect system frequency control, which endeavours to balance supply and demand by utilising energy reserves from traditional power ...
Dumisani Mtolo +2 more
wiley +1 more source
IET Electric Power Applications, Volume 18, Issue 12, Page 1740-1751, December 2024.The authors present a low‐loss dual‐permanent‐magnet‐excited vernier (DPMEV) machine with segmented stator design to meet the requirements of electric aircraft. Based on the field modulation theory, it can ensure that the segmented DPMEV machine reduces iron loss without sacrificing torque performance.
Jinghua Ji +5 more
wiley +1 more source