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SMOGN,MFO,and XGBoost Based Excitation Current Prediction Model for synchronous machine

Computer Systems Science & Engineering 2023年第9期46卷 2687-2709页

作者： Ping-Huan Kuo Yu-Tsun Chen Her-Terng Yau Department of Mechanical Engineering National Chung Cheng UniversityChiayi62102TaiwanChina Advanced Institute of Manufacturing with High-Tech Innovations(AIM-HI) National Chung Cheng UniversityChiayi62102TaiwanChina

The power factor is the ratio between the active and apparent power,and it is available to determine the operational capability of the intended circuit or the parts.The excitation current of the synchronous motor is an essential parameter required for adjusting the power factor because it determines whether the motor is under the optimal operating status.Although the excitation current should predict with the experimental devices,such a method is unsuitable for online real-time prediction.The artificial intelligence algorithm can compensate for the defect of conventional measurement methods requiring the measuring devices and the model optimization is compared during the research process.In this article,the load current,power factor,and power factor errors available in the existing dataset are used as the input parameters for training the proposed artificial intelligence algorithms to select the optimal algorithm according to the training result,for this algorithm to have higher accuracy.The SMOGN(Synthetic Minority Over-Sampling Technique for Regression with Gaussian Noise)is selected for the research by which the data and the MFO(Moth-flame optimization algorithm)are created for the model to adjust and optimize the parameters automatically.In addition to enhancing the prediction accuracy for the excitation current,the automatic parameter adjusting method also allows the researchers not specializing in the professional algorithm to apply such application method more efficiently.The final result indicated that the prediction accuracy has reached“Mean Absolute Error(MAE)=0.0057,Root Mean Square Error(RMSE)=0.0093 andR2 score=0.9973”.Applying this method to themotor control would be much easier for the power factor adjustment in the future because it allows the motor to operate under the optimal power status to reduce energy consumption while enhancing working efficiency.

关键词： synchronous machine power factor excitation current active power apparent power

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Design of synchronous machine Model Based on PRO/E and Dynamic Simulation

Design of Synchronous Machine Model Based on PRO/E and Dynam...

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The 2nd International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation(CDMMS 2012)

作者： Youkun Zhong Department of Physics and Electronic Engineering Hechi University

With the increasing of the number of cars,people are also getting higher and higher demands on the performance of the car,and especially pay attention to the improvement and optimization of automobile

关键词： synchronous machine Dynamics Mathematical Model PRO/E Three-Dimensional Model Virtual Prototype Technology synchronous machines Dynamic simulation machine model Cars Transmission systems Virtual prototyping Transmission Characteristics

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Spiral Vector Modeling of Brushless Doubly-fed Induction machines with Short-circuited Rotor Windings

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Chinese Journal of Electrical Engineering 2021年第3期7卷 29-41页

作者： Peng Han Ming Cheng Zhiwei Zhang Peng Peng Ansys Inc.San JoseCA 95134USA School of Electrical Engineering Southeast UniversityNanjing 210096China Department of ECE The Ohio State UniversityColumbusOH 43210USA Milwaukee Electric Tool Corporation MilwaukeeWI 53005USA

A unified spiral vector model is presented that can be used to assist the finite element method-based performance analysis of brushless doubly-fed induction machines with various short-circuited rotor windings.Specifically,magnet-free brushless doubly-fed induction machines working in doubly-fed or singly-fed synchronous mode are investigated.A dynamic model in spiral vector notation is developed,based on which the torque-angle and power-angle characteristics are derived.It is shown that the investigated brushless machines are equivalent to a traditional non-salient-pole synchronous machine with brushes.By introducing a conversion factor,they can also be analyzed with methods similar to the conventional phasor theory.A comparison is made between the brushless doubly-fed induction machine and non-salient-pole wound-field synchronous machine with brushes,revealing that the performance of the brushless machine degrades faster when the laminated core is saturated.A scaled-down prototype is tested to validate the effectiveness of the theoretical analysis.

关键词： AC machine brushless machine modeling performance evaluation synchronous machine

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Adaptive control of permanent magnet synchronous machines with disturbance estimation

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控制理论与应用（英文版） 2012年第3期10卷 337-343页

作者： Hicham CHAOUI Pierre SICARD Industrial Electronics Research Group School of EngineeringUniversite du Quebec a Trois-RivieresTrois-RivieresQuebecCanada

In this paper, an adaptive control scheme is introduced for permanent magnet synchronous machines （PMSMs） as an alternative to classical control techniques. The adaptive control strategy capitalizes on the machine＇s inverse dynamics to achieve accurate tracking by using an observer to approximate disturbance in the form of friction and load torque. The controller＇s output is then fed to a space vector pulse width modulation （SVPWM） algorithm to produce duty cycles for the inverter. The control scheme is validated through a set of simulations on an experimentally validated PMSM model. Results for different situations highlight its high speed tracking accuracy and high performance in compensating for friction and load disturbances of various magnitudes.

关键词： Adaptive control Speed control Observer Disturbance estimation synchronous machine

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Magnetic Field Analysis and Performance Calculation for New Type of Claw Pole Motor with Permanent Magnet Outer Rotor

Magnetic Field Analysis and Performance Calculation for New ...

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CES/IEEE 5th International Power Electronics and Motion Control Conference

作者： Eugen Nolle Hans Pert Gruenberger Esslingen University of Applied Sciences Esslingen 73732Germany Esslingen University of Applied Sciences Esslingen 73732Germany

＜正＞This paper introduces the structure and operation principle of claw pole motor with permanent magnet outer rotor. The three dimensional magnetic field distribution at no-load condition has been analyzed by using the scalar magnetic potential. Moreover, the operation characteristic curves have been obtained at different speeds. The results of the paper are helpful to the computation of performance and optimal parameters.

关键词： claw pole permanent magnet outer rotor synchronous machine

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