The influence of asymmetric pole shoe on synchronous hydro generator

Qiu, H.; Fan, Xiaobin

doi:10.1002/tee.22728

Cited by 3 publications

(1 citation statement)

References 15 publications

(14 reference statements)

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“…The transient electromagnetic field equations of the generator can be expressed as Eq. (1) (Qiu and Fan, 2018;Qiu et al, 2020):…”

Section: Establishment and Experimental Validation Of The Electromagn...mentioning

confidence: 99%

Design of the external forced air cooling control strategy for the bulb tubular turbine generator based on multi-objective optimization

Wei,

Zhang,

Song

et al. 2024

Front. Energy Res.

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The compact internal structure of the bulb tubular turbine generator (BTTG) leads to poor ventilation and heat dissipation capability (VHDC). It will result in high-temperature faults and lead to losses for the hydro-power station, if the staff at the hydropower station fail to promptly regulate the external forced air cooling for effective heat dissipation. Thus, a specific and effective ventilation control strategy (VCS) is of utmost importance for the operation of the BTTG. In this study, the finite element method (FEM) was employed to solve the magnetic-flow-thermal coupled field of a 24-MW BTTG. The distribution characteristics of electromagnetic losses and their impact on the temperature field were revealed. Experimental validation was conducted to verify the effectiveness of the numerical results. The response surface methodology (RSM) was employed to design an experimental plan by building upon this foundation. Integrated with a multiobjective genetic algorithm (MOGA), an optimal relationship between ambient temperature, fan flow rate, and heating components’ temperature was established. This relationship serves as the optimized ventilation control strategy for the BTTG. This research provides a theoretical framework for the formulation of operational guidelines to ensure the safe operation of generators.

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“…The transient electromagnetic field equations of the generator can be expressed as Eq. (1) (Qiu and Fan, 2018;Qiu et al, 2020):…”

Section: Establishment and Experimental Validation Of The Electromagn...mentioning

confidence: 99%

Design of the external forced air cooling control strategy for the bulb tubular turbine generator based on multi-objective optimization

Wei,

Zhang,

Song

et al. 2024

Front. Energy Res.

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Dynamic evolution of a bulb hydroelectric generating unit considering effects of the blades

Yan

Chen

Wang

et al. 2019

Energy Conversion and Management

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The Multi-Objective Optimization of AFPM Generators with Double-Sided Internal Stator Structures for Vertical Axis Wind Turbines

Song¹,

Zhou²,

Peng³

et al. 2021

Energy Engineering

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The axial flux permanent magnet (AFPM) generator with double-sided internal stator structure is highly suitable for vertical axis wind turbines due to its high power density. The performance of the AFPM generator with double-sided internal stator structure can be improved by the reasonable design of electromagnetic parameters. To further improve the overall performance of the AFPM generator with double-sided internal stator structure, multivariable (coil width ω c , permanent magnet thickness h, pole arc coefficient α p and working air gap l g ) and multi-objective (generator efficiency η, total harmonic distortion of the voltage THD and induced electromotive force amplitude EMF) functional relationships are innovatively established. Orthogonal analysis, mean analysis and variance analysis are performed on the influence parameters by combining the Taguchi method and response surface methodology to study the influence degrees of each influence parameter on the optimization objectives to determine the most appropriate electromagnetic parameters. The optimization results are verified by 3D finite element analysis. The optimized APFM generator with double-sided internal stator structure exhibits superior economy, stronger magnetic density, higher efficiency and improved power quality. KEYWORDSWind turbine; double-sided internal stator structure; multi-objective optimization; axial flux permanent magnet generator Efficiency, total harmonic distortion (THD), induced electromotive force amplitude (EMF) and other indicators are usually considered as the optimized objectives in AFPM generators with .

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The influence of asymmetric pole shoe on synchronous hydro generator

Cited by 3 publications

References 15 publications

Design of the external forced air cooling control strategy for the bulb tubular turbine generator based on multi-objective optimization

Design of the external forced air cooling control strategy for the bulb tubular turbine generator based on multi-objective optimization

Dynamic evolution of a bulb hydroelectric generating unit considering effects of the blades

The Multi-Objective Optimization of AFPM Generators with Double-Sided Internal Stator Structures for Vertical Axis Wind Turbines

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