Three-phase Induction Motor Research Articles

Backstepping controller for speed loop of permanent magnet synchronous motors integrated with a time-varying disturbance load observer for Metro Nhon-Hanoi Station

Urban rail systems offer the substantial potential for reducing environmental pollution, alleviating traffic congestion, ensuring safety, and maintaining punctuality. Nevertheless, the operation of urban rail demands substantial electrical energy, and saving energy solutions are crucial to exploiting the full advantages of electric trains. This paper proposes the replacement of traditional traction motors with permanent magnet synchronous motors (PMSMs) due to their superior efficiency, reduced power losses, and compact size compared to direct current (DC) motors or other asynchronous three-phase motors with equivalent power, developing a backstepping controller for the speed loop coupled with a load observer-time-varying disturbance (TVD). The simulation results were conducted in MATLAB/Simulink with parameters collected from the Nhon-Hanoi urban railway line, Vietnam, verifying the proposed algorithms' correctness and effectiveness.

Dynamic to Static Model Comparison and Hybrid Metaheuristic Optimization in Induction Motor Parameter Estimation

This paper presents a comprehensive study of parameter estimation for three-phase induction motors (IMs) using hybrid optimization methods and a comparative evaluation of static and dynamic modeling approaches. A hybrid metaheuristic combining the Sine Cosine Algorithm (SCA) and Particle Swarm Optimization (PSO) is developed to identify optimal motor parameters efficiently. The approach utilizes a static model for rapid estimation, with final parameter values validated against a dynamic model to ensure accuracy in operational predictions. Results confirm that the static model provides robust parameter estimates for key performance metrics, including torque, power factor, and current, aligning well with experimental results from real-motor no-load tests. Parameters estimated by the proposed method demonstrate a high adherence with the motor real measurements. Comparisons also reveal the limitations of static models in scenarios requiring state-space accuracy, such as observer-based control applications. This study concludes by recommending further exploration of alternative motor modeling structures and the hybrid optimization algorithm for parameter estimation.

The Effect of Stator Outer Diameter and Length on the Performance of Three-Phase Induction Motor at Constant Volume

The Effect of Stator Outer Diameter and Length on the Performance of Three-Phase Induction Motor at Constant Volume

Diagnosing Broken Rotor Bar Faults in Speed‐Sensorless Squirrel Cage Induction Motors Using Principal Component Analysis and Knowledge Graph

ABSTRACTSquirrel cage induction motors (SCIMs) are integral to numerous industrial applications, and the accurate monitoring and diagnosis of rotor bar conditions are paramount for enhancing system productivity and minimizing maintenance expenditures. However, the existing techniques for diagnosing broken rotor bars (BRBs) faults are often constrained by the voltage imbalance conditions and the low slip in practical applications. This paper introduces an innovative approach to BRBs fault diagnosis, using principal component analysis (PCA) and knowledge graph (KG) methodologies. PCA, which is robust to imbalanced conditions, is employed to demodulate the stator current signals and isolate the phase modulation (PM) component. The calculated PM index serves as a fault indicator. Concurrently, the KG framework is introduced to detect the BRB fault and quantify the severity. Experimental results demonstrate the effectiveness and reliability of the proposed method under different load levels and fault severities.

Design, Dynamic Modelling, Simulation and Control of a Solar Powered Sucker Rod Oil Pump

The sucker rod pump is a crucial artificial lift system widely deployed in the oil industry to extract crude oil from producing wells. Accurate modelling of the sucker rod pump has become essential as a viable strategy for optimizing performance, and ensuring both efficient and economic operation. This paper presents a comprehensive methodology for the design, dynamic modelling, simulation, and control of a solar-powered sucker rod oil pump. It combines load modelling of the sucker rod pump using SolidWorks with design, dynamic modelling, simulation, and control of the solar microgrid in Matlab's Simscape and Simulink. The model seamlessly integrates the mechanical and electrical systems with 100%renewable energy to power the sucker rod pump system. This approach combines the solar photovoltaic system, battery charge control system, battery energy storage system, step-up transformer, and the squirrel cage induction motor, which serves as the electric motor prime mover. The surface pump model is first developed in SolidWorks and then converted to Simscape, the rating of the pump is then implemented as a load in the solar-powered electrical microgrid. Environmental conditions such as solar irradiance and ambient temperature for summer and winter are obtained from data repositories and included in the modelling and analysis of the overall system performance demonstrating stable operation, robustness, and resilience to changing environmental and operational conditions.

Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System

This paper presents a carrier waves phase shifting method to reduce the dc-link capacitor current for a dual three-phase permanent magnet synchronous motor drive system. dc-link capacitors absorb the ripple current generated at the input due to the harmonics of the pulse width modulation (PWM). The size, cost, reliability, and lifetime of the dc-link capacitor are negatively affected by this ripple current flowing through it. The proposed method is especially appropriate for common dc-link capacitors for a dual inverter system driving two PMSMs. In this paper, the input current of each inverter is analyzed using Double Fourier Analysis, and the harmonic components of the dc-link capacitor current are determined. The carrier wave phase shifting method is proposed to reduce the magnitude of the harmonics and thus reduce the dc-link capacitor current. Furthermore, the optimum angle between the carrier waves for the maximum reduction in the dc-link capacitor current is analyzed and simulated for different scenarios considering the speed and load torque of the PMSMs. The proposed method is verified through experiments and PMSMs are driven by three-phase voltage source inverters (VSIs) modulated with Space Vector Pulse Width Modulation (SVPWM), which is the most common PWM strategy. The proposed method reduced the dc-link capacitor current by 60%, thereby significantly decreasing the required dc-link capacitance, the volume of the drive system, and its cost.

Broken Rotor Bar Fault Detection in Induction Motor Based on Spectral Analysis

Three-phase induction motors are among the most frequently used motors in industrial areas due to their simple structure, low cost, power specifications, etc. Electric energy consumption from these motors accounts for 68% of the energy used by all motors. The faults that occur in these motors over time decrease motor efficiency and result in significant energy consumption. In this study, a new method based on spectral subtraction (SS) was suggested for determining broken rotor bar (BRB) faults in these motors. The traditional method of motor current signature analysis via Fast Fourier Transform (FFT) is hard to use to diagnose BRB faults because the sideband characteristics used as a fault indicator are also seen in the healthy state at low amplitude levels. In the proposed fault detection method, the FFT of both healthy case and faulty case current signals were calculated and then the SS signal is obtained by subtracting the FFT of the healthy motor from the faulty motor for each time step. In the residual SS signal, fault detection was performed by examining the amplitude levels of the harmonic component of the BRB fault. Experimental results indicate that BRB faults can be successfully detected in squirrel-cage rotor induction motors using the suggested method.

Speed Control of a Single-Phase Induction Motor Using a Fuzzy Logic Based Hysteresis Band PWM

Single-phase asynchronous motors are preferred in the industry due to their significant features such as robust construction, easy maintenance, and ability to operate in different ambient conditions. They are widely used in various types of automated control systems, cooling and ventilation appliances, and household appliances. Although the structure of the single-phase induction motors is quite simple, modeling and speed control of them are very difficult due to their nonlinear structure. Since traditional speed control methods are not sufficient in nowadays, various methods are being investigated for the speed control of these motors. One of them is to control the speed of a single-phase induction motor by changing the voltage waveform via the power electronic components. In addition to this method, fuzzy logic controller can be preferred in the systems that are difficult to analyze and it does not require a mathematical model. For this reason, in this study, a PWM controlled AC chopper circuit and fuzzy logic controller, which is one of the faster and cheaper methods, are proposed for the speed control of a single phase induction motor. Thus, better results are obtained from the fuzzy logic controller. The system is modeled by MATLAB/Simulink simulations and the results are validated.

ДОСЛІДЖЕННЯ ЕКОНОМІЇ ЕНЕРГЕТИЧНИХ І ВОДНИХ РЕСУРСІВ В СИСТЕМІ ВОДОПОСТАЧАННЯ БАГАТОПОВЕРХОВОГО БУДИНКУ ЗА ДВОРІВНЕВИХ СТОЯКІВ

The influence of the structure of the electromechanical water supply system of a 12-story building (replacing one riser with two risers of different levels) on the efficiency of energy and water resource use was studied. A mathematical model of the electromechanical system has been developed and implemented in software, which takes into account the dependence of the floor consumption on the pressure value and allows determining the water needs of consumers based on the given cyclorama of the water consumption of the house. According to the information about the known parameters of the basic version of the water supply system, the parameters of one floor and the parameters of the variants of the building system with risers for servicing floors are determined: 1-12; 1-6; 7-12. The study was carried out taking into account the proposed time dependence of the change in the input pressure of the house. Means of generalized determination of the energy efficiency of the asynchronous motor of the water supply system based on approximate dependences of nominal efficiency on power and efficiency on the degree of loading have been developed. The comparison of options was carried out according to the formulated expression of the efficiency criterion, as the ratio of the daily useful effect of the water supply system to consumers to the cost of electricity and water consumed during the given period. According to the simulation results, the two riser option provides savings of 4% of water and 25% of electricity with their ratio in monetary terms 6:1. This justifies the priority of taking into account water savings when justifying the modernization of water supply systems (parallel zoning, adjustable electric drive). References 11, table 1, figures 3.

Optimization of fractional PI controller parameters for enhanced induction motor speed control via indirect field-oriented control

Introduction. Induction Motors (IM) possess advantages such as stability, reliability, and ease of control, making them suitable for many purposes; the literature elucidates control methodologies for IM drives, primarily focusing on scalar and vector control techniques; the conventional method utilized in manufacturing is scalar control, which unfortunately demonstrates optimal performance solely in steady-state conditions. The absence of significant instantaneous torque control restricts flux and dissociated torque, resulting in subpar dynamic responsiveness. Indirect Field Oriented Control (IFOC) for IM drives has proven beneficial for various industrial applications, particularly electric vehicle propulsion. The primary advantages of this approach include the decoupling of torque and flux characteristics and its straightforward implementation. The novelty of the work consists of a proposal for a driving cycle model for testing the control system of electric vehicles in Mosul City (Iraq), and using a Complex Fractional Order Proportional Integral (CFOPI) controller to control IMs via IFOC strategies, the Artificial Bee Colony (ABC) algorithm was applied, which is considered to be highly efficient in finding the values of controllers. Purpose. Improvement IFOC techniques for the regulation of IM speed. Methods. Using the ABC algorithm in tuning the two unique CFOPI controller, and a Real Fractional Order Proportional Integral (RFOPI) controller, to regulate the speed of a three-phase IM via IFOC techniques. Results. The CFOPI controller outperforms the RFOPI controller in obtaining the best performance in controlling the IM. Practical value. The CFOPI controller demonstrates superiority over the RFOPI controller, as evidenced by the lower integral time absolute error in motor speed tracking during the driving cycle 2.1004 for the CFOPI controller compared to 2.1538 for the RFOPI controller. References 27, tables 5, figures 4.

Fault diagnosis in thermal images of transformer and asynchronous motor through semantic segmentation and different CNN models

Fault diagnosis in thermal images of transformer and asynchronous motor through semantic segmentation and different CNN models

Research and analysis of mechanical characteristics of three-phase asynchronous motor

Research and analysis of mechanical characteristics of three-phase asynchronous motor

Cost-effective IE2 high-efficiency single-phase induction motor design and prototyping

Cost-effective IE2 high-efficiency single-phase induction motor design and prototyping

Accurate and Broadband Three-Phase Motor Modeling Methodology Based on Vector Fitting

Accurate and Broadband Three-Phase Motor Modeling Methodology Based on Vector Fitting

Analysis and Control of a three-phase motor using a neural network

Actually the electrical power systems analyzed in automatic control we find the systems: dynamic, linear, triphasic induction motors, their operation can be validated, through their mathematical model, and thus represent their parameters for a real physical motor. This has a high degree of feasibility of being controlled because a more precise approximation of its dynamics can be known. Guarantee optimal energy consumption and performance of a threephase motor, large companies have bet on artificial intelligence and the quality of proper operation in their new electric motors. This work has the purpose of carrying out an analysis on the operation of a three-phase electric motor for commercial use, is of vital im-portance to know the parameters of the real three-phase motor so that they allow an efficient use of energy and in addition to designing efficient and robust control schemes. Additionally the analyzed operation and manipulation and the training of a neural network (RNA) utilize MATLAB. Main contribution of this document is to experimentally validate the training of the RNA, taking real parameters on the manipulation of a triphasic motor. Training, the results can be used to improve engine performance as well as engine life.

Speed control of 3 phase induction motor using an RC circuit as a start signal

rcoming Resistance of the initial condition in three-phase electric motors is essential in applications where it’s had high initial consumption demand, such as HVAC Systems, pumps or compressors, higher torque ensures reliable operation even under varying conditions of load. These motors can provide efficient operation for heavy loads or when starting under load conditions. In this work an RC circuit is used for starting signal of a 3-phase induction motor, advantages of using an RC circuit against a conventional variable frequency controller are shown in the article

Low-Complexity Model Predictive Control for Series-Winding PMSM with Extended Voltage Vectors

This paper proposes a low-complexity model predictive current control (MPCC) strategy based on extended voltage vectors to enhance the computational efficiency and steady-state performance of three-phase series-winding permanent magnet synchronous motors (TPSW-PMSMs). Compared to conventional MPCC methods, this approach increases the number of candidate voltage vectors in the alpha–beta plane from 8 to 38, thereby achieving better steady-state performance. Specifically, the proposed method reduces the total harmonic distortion (THD) by 59%. To improve computational efficiency, a two-stage filtering strategy is employed, significantly reducing the computational burden. The number of voltage vectors traversed in one control period is reduced from 38 to a maximum of 4, achieving an 89% reduction in traversals. Additionally, to mitigate the impact of zero-sequence currents, zero-sequence current suppression is implemented within the control system for effective compensation. By combining low computational complexity, reliable steady-state performance, and real-time control capabilities, this strategy provides an efficient solution for TPSW-PMSM systems. Simulation results validate the effectiveness of the proposed method.

DC to AC Converter Frequency Speed Drive Mosfet H-Bridge Topology with Fixed Frequency PWM Sine

This paper focuses on simulating a Frequency Speed Drive (FSD) which can regulate frequency changes of 2 to 50 Hz sine wave voltage of 220 Volt RMS. Increasing the frequency of the voltage source provided to the induction motor is expected to increase the rotation speed of the single phase induction motor. This research was carried out by simulating electronic circuits and creating firmware that can regulate the speed of the sine frequency using the PWM (Pulse Width Modulation) Chopping technique with a fixed frequency. Because the PWM Chopping frequency is fixed, the lower the sinusoid frequency the more PWM Chopping will be produced for one wave. Conversely, the higher the frequency of the sinusoid, the less PWM (Pulse Width Modulation) Chopping for one wave will be produced. With this technique, a SPWM wave is produced with a variable frequency and an effective voltage value that is close to a pure sinusoidal wave.

Comparative Analysis of Differential-Mode Impedance in Single-Phase Induction Motors

This paper presents an experimental study of the high-frequency impedance behavior of four types of single-phase induction motors: Split-Phase Induction Motor (SPIM), Permanent Split Capacitor Induction Motor (PCIM), Capacitor Start Induction Motor (CSIM) and Single Phase Repulsion Motor (RIM). A differential-mode impedance and phase angle over a range of frequencies, including resonance and anti-resonance points, are the focus of the present study. The obtained results show that every type of motor has distinctive impedance characteristics; the RIM always shows higher impedance than other motors, whereas the CSIM exhibits lower impedance in low frequencies. Those differences unveil the influence of the motor design on Electromagnetic Compatibility (EMC) performance, since high-impedance motors, such as the RIM, present lower Electromagnetic Interference (EMI) emissions and lower susceptibility to external electromagnetic interference, therefore better general EMC performance. Also, the frequencies of resonance and anti-resonance vary between the motors, which is also reflected in their different electrical and structural designs. The study provides helpful insights into the optimization of motor designs to achieve better EMC compliance and operational stability in various applications.

Features of thermistor protection of three-phase asynchronous motors with short-circuit rotor with voltage up to 0.66 kV

The article analyzes the features of thermistor protection against overheating of three-phase asynchronous motors with a squirrel-cage rotor with a voltage of up to 0.66 kV. A comparative analysis of different types and types of thermistors is carried out, in particular their design features, operating principles and characteristics, which provides effective protection of motor windings from critical overheating. The advantages and disadvantages of different types of thermistor protection of asynchronous motors are determined, which allows you to reasonably choose the optimal protection option depending on the operating conditions and requirements for the reliability of electric motors in accordance with modern standards.