Thermal Analysis on Radial Flux Permanent Magnet Generator (PMG) using Finite Element Method

Irasari, Pudji; A, Hilman Syaeful A Syaeful; Kasim, Muhammad

doi:10.12962/j20882033.v22i2.59

Cited by 9 publications

(4 citation statements)

References 10 publications

(17 reference statements)

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“…The LPTM is the main tool for a fast yet accurate thermal analysis. However, a common drawback to this approach can make it useless to a designer, because there is a need for experimental data in order to tune parameters that are very important in order to obtain accurate results [15]. It is of common practice in thermal modeling of electric machine to use the lumped thermal method, however if higher level of details is required, it needs to use the more refined methods like numerical method based on finite element or finite difference.…”

Section: A Thermal Evaluation Methodsmentioning

confidence: 99%

Strategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired GeneratorStrategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired Generator

Djunaedi¹,

Nugraha²

2015

IJMMM

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Abstract-A 471,000kVA Inner-Cooled Turbine Generators, 23kV, .85PF, 3 phases, 50 hertz, 3000 rpm with manufacturing year in 1987, the generator has the service life at over 25 years. The insulation is assumed that is not in an acceptable condition for long term operation and therefore arranges to be performing Life Extension program which will comprise of a full Rewinding of Generator Stator and Generator Rotor. A design margin of the generator should be increased to 494,550 kVA from the current design margin of 471,000 kVA, while maintaining the 0.85 power factor. As justification for the Life Extension program, it will require of life assessment. Then a design review of the generator due to increase a design margin needs to be done by determining the performance and life extension of the generator prior to refurbish or uprating. A design review and feasibility study in order to extend the operating life and increase the capability and reability of the generator are performed by using numerical simulation on magnetic analysis, thermal analysis and rotor dynamic analysis. Therefore, the increasing a design margin on the generators from the current design of the margin will not pose a problem as long as all of the following recommendations can be implemented.

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Section: A Thermal Evaluation Methodsmentioning

confidence: 99%

Strategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired GeneratorStrategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired Generator

Djunaedi¹,

Nugraha²

2015

IJMMM

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“…The former is assigned to the outer borders of the cylinders. Since the air coefficient is typically within the range 6-30 W/m 2 • • C in natural convection [23], a value of 15 W/m 2 • • C is used. A steady-state simulation is performed at rated conditions in order to determine the value of the surface temperature, T. The temperature of the air in the interface increases from a starting value of 40 • C to a final steady-state value of 83.43 • C, which is considered, in turn, as the starting temperature of the subsequent simulation.…”

Section: Aluminium (Windings)mentioning

confidence: 99%

“…Mesh [23]: The number of nodes for the magnetic and thermal simulations are 350,723 and 1,090,869, respectively.…”

mentioning

confidence: 99%

Thermal Analysis of Dry-Type Air-Core Coils for the Optimization of Passive Filtering Systems

et al. 2020

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The analysis of harmonic currents in distribution networks of industrial facilities and the associated filtering stages is essential to optimize the production of these installations. Dry-type air-core reactors are one of the main elements of harmonic filter banks. A thermal analysis of these reactors in conventional steel plants and an evaluation of the criteria used to adjust the corresponding thermal protections are proposed in this paper. Accordingly, harmonic currents through the different filter branches are assessed. The proposed methodology builds a thermal magnetic model using the finite element method (FEM) whereby electromagnetic fields, currents and losses are emulated, to allow for recreating the actual coil temperature. The study aims at increasing the reliability of filtering systems by lowering the number of unscheduled shutdowns due to conservative adjustments of thermal protections.

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“…This work was motivated by a memorandum of understanding (MoU) which has been implemented by the Indonesian Institute of Sciences (LIPI) and PT. Indonesia Power in the fields of research and development of electricity on November 7, 2011 casings or hydrogen seals [3]. Therefore, thermal analysis is needed to determine the effect on the increasing of hydrogen pressure in the cooling system.…”

Section: Introductionmentioning

confidence: 99%

Thermal Study for Power Uprating of 400 MW Generator Using Numerical Simulation

Djunaedi¹,

Soetraprawata²

2017

IJMMM

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Abstract-One way to get more power out of the generator in a power plant is by implement a power uprating, however it is required design review especially for thermal characteristic of generator in order to prevent over heat and heat concentration point which can lead to the failure of insulation systems. In this study, thermal characteristics of 400 MW Generator due to power uprating had been analyzed using numerical simulation based on finite element. Case study was conducted on the generator of SURALAYA Coal Fired Power Plant in Indonesia based on the three conditions, i.e. existing condition, 5% and 7% uprating. Based on simulation results, the temperature distribution in the generator was able to be represented in detail in every segment where there was no indication of heat concentration point or hotspot on the generator. The increasing temperatures on winding due to the 5% and 7% uprating were respectively 29.9 º C and 31.1 º C by the largest error ± 3.33%.

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Thermal Analysis on Radial Flux Permanent Magnet Generator (PMG) using Finite Element Method

Cited by 9 publications

References 10 publications

Strategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired GeneratorStrategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired Generator

Strategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired GeneratorStrategic Consideration and Numerical Simulation on Life Extension and Uprating of 25 Years Services Life Coal Fired Generator

Thermal Analysis of Dry-Type Air-Core Coils for the Optimization of Passive Filtering Systems

Thermal Study for Power Uprating of 400 MW Generator Using Numerical Simulation

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