The Simulation of Six Phase PMSM Taking Iron Loss into Account

2012 ◽  
Vol 433-440 ◽  
pp. 7535-7540
Author(s):  
Dong Xing ◽  
Xiao Ning Zhang ◽  
Yong Ling Fu ◽  
Hai Tao Qi
Keyword(s):  
Mathematical Model ◽  
Steady State ◽  
Dynamic Response ◽  
Iron Loss ◽  
Field Oriented Control ◽  
Three Phase ◽  
Simulation Results ◽  
Set Up ◽  
The Mathematical Model ◽  
Fast Dynamic

This paper studies the mathematical model considering iron loss in the d-q axis of six phase permanent magnetic synchronous motor (PMSM), through the expansion of Field-Oriented Control (FOC) based on three phase PMSM, the simulation model of six phase PMSM under environment of simulink7.0 is set up, which has fast dynamic response, high steady-state precision, and has no problems about current balance compared to dual three phase PMSM. In order to get an accurate simulation results, this mathematical model takes iron loss into account. The simulation results show that iron loss have bad effects on the performance of PMSM especially affect the dynamic response, and to reduce the bad effects, the resistance of the motor core should be increased.

Research on Dynamic Balance Method of Precision Centrifuge

2014 ◽  
Vol 945-949 ◽  
pp. 777-780
Author(s):  
Tao Liu ◽  
Yong Xu ◽  
Bo Yuan Mao
Keyword(s):  
Mathematical Model ◽  
Balance Control ◽  
Dynamic Balance ◽  
Dynamic Balancing ◽  
Structure Characteristics ◽  
Balance System ◽  
Simulation Results ◽  
Set Up ◽  
System Controller ◽  
The Mathematical Model

Firstly, according to the structure characteristics of precision centrifuge, the mathematical model of its dynamic balancing system was set up, and the dynamic balancing scheme of double test surfaces, double emendation surfaces were established. Then the dynamic balance system controller of precision centrifuge was designed. Simulation results show that the controller designed can completely meet the requirements of precision centrifuge dynamic balance control system.

Numerical Analysis of Heat and Mass Transfer Performance of the Packed-Type Parallel Flow Dehumidifier

2014 ◽  
Vol 989-994 ◽  
pp. 3100-3104
Author(s):  
Rui Hang Zhang ◽  
Zi Ye Wang ◽  
Run Ping Niu
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Parallel Flow ◽  
Transfer Performance ◽  
Transfer Coefficients ◽  
Simulation Results ◽  
Set Up ◽  
The Impact ◽  
The Mathematical Model

TA mathematical model describing heat and mass transfer performance of packed-type parallel flow dehumidifier was set up. The numerical solution of differential equations was derived. Taking the heat and mass transfer coefficients obtained by experiments as the input parameters of the model, the impact of solution inlet parameters on outlet parameter of air was described. The simulation results indicated that the mathematical model could be used to predict the performance of liquid dehumidification. The results showed that the mathematical model can be of great value in the design and improvement of dehumidifier.

Analysis and synthesis of converter control system of autonomous induction generator with field oriented control

2013 ◽  
Vol 62 (2) ◽  
pp. 267-279 ◽  
Author(s):  
Błażej Jakubowski ◽  
Krzysztof Pieńkowski
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Control Algorithm ◽  
Induction Generator ◽  
Field Oriented Control ◽  
Analysis And Synthesis ◽  
Simulation Results ◽  
The Mathematical Model ◽  
Load Circuit

Abstract The paper presents the mathematical model of an autonomous induction generator with the AC load circuit and the converter control system of the voltage magnitude at the terminals of stator generator. The control algorithm and the structure of the control system are described. The simulation results of the control system are presented and discussed.

scholarly journals A New Soft Starting Method for Wound-Rotor Induction Motor

2011 ◽  
Vol 62 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Mohammad Sharifian ◽  
Mohammad Feyzi ◽  
Mehran Sabahi ◽  
Meysam Farrokhifar
Keyword(s):  
Mathematical Model ◽  
Steady State ◽  
Computer Program ◽  
Equivalent Circuit ◽  
Induction Motor ◽  
Optimization Method ◽  
Starting Time ◽  
Three Phase ◽  
The Mathematical Model ◽  
Starting Torque

A New Soft Starting Method for Wound-Rotor Induction Motor Starting of a three-phase Induction motor using a starter rheostat in rotor circuit has some disadvantages. A new method for starting of a three-phase motor by using a parallel combination of resistors, self-inductors and capacitors in rotor circuit is proposed in this paper. The proposed method ensures the soft and higher starting torque as well as limited starting current as compared to shorted rotor method. The characteristic curves for both methods (shorted rotor and rotor with added elements) are provided. The mathematical model based on the steady-state equivalent circuit of the induction motor is expanded in frequency domain and the required computer program is prepared using an optimization method. The values for added elements to rotor circuit are calculated in such a way that minimum starting time considering current and torque limitations are achieved.

Modeling and Numerical Simulation of Dehumidifier Using LiCl Solution as the Liquid Desiccant

2011 ◽  
Vol 383-390 ◽  
pp. 6568-6573 ◽  
Author(s):  
Run Ping Niu
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Parameter Distribution ◽  
Liquid Desiccant ◽  
Transfer Coefficients ◽  
Data Simulation ◽  
Simulation Results ◽  
Set Up ◽  
The Mathematical Model

The performance of air dehumidifier using LiCl solution as the Liquid desiccant was studied with numerical methods. A mathematical model describing heat and mass transfer performance of air dehumidifierwas set up. The numerical solution of differential equations were derived. Taking the heat and mass transfer coefficients obtained by experiments as the input parameters of the model，the parameter distribution of air and solution was described. The simulation results corresponds very well to experimental data. Simulation results indicated that the mathematical model could be used to predict the performance of air dehumidifier. The results showed that the mathematical model can be of great value in the design and improvement of air dehumidifier.

Three-Phase Induction Motor Modeling and Control Based on the EL Equation

2012 ◽  
Vol 622-623 ◽  
pp. 1917-1921
Author(s):  
Hao Xiang ◽  
Jiu He Wang ◽  
Yu Ling Ma ◽  
Dong Ying Yang
Keyword(s):  
Induction Motor ◽  
System Simulation ◽  
Two Phase ◽  
Modeling And Control ◽  
Three Phase ◽  
Simulation Results ◽  
Stator Flux ◽  
Set Up ◽  
And Control ◽  
The Mathematical Model

The Euler-Lagrange (EL) model of the three-phase induction motor is set up based on the mathematical model of the three-phase induction motor in the two-phase static coordinate. The passivity and dissipativity of the three-phase induction motor are studied by EL model. Based on the passivity of induction motor, the passivity-based controller of system is designed with the method of damping injection under the conditions of the stator flux oriented.The system simulation model of the three-phase induction motor is established under MATLAB/Simulink environment. The Simulation results show that the passivity-based controller designed with the method of damping injection under the conditions of the stator flux orientedis feasible.

The Control System for Three-Phase Induction Motors Based on Stator Flux Orientation

2015 ◽  
Vol 740 ◽  
pp. 355-358
Author(s):  
Feng Long Shen
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Induction Motors ◽  
Direct Calculation ◽  
Field Orientation ◽  
Three Phase ◽  
Stator Flux ◽  
The Mathematical Model ◽  
Double Integrator ◽  
Fast Dynamic

In this paper, the mathematical model of induction motor based on stator field orientation in synchronous frame is introduced. To resolve the question of relay, the d-axis current direct calculation is adopted to replace traditional decoupler. Fix threshold double-integrator based on coordinate transformation is used to eliminate integrator saturation. SVPWM based on 600 coordinate system is developed to simplify calculation. The control system based on stator flux orientation is simulated by MATLAB. The simulation result shows that the system has a fast dynamic response and steady characteristics.Nomenclature

The Model Simulation Analysis of Electro-Rheological Fluid Engine Mounting System

2013 ◽  
Vol 694-697 ◽  
pp. 338-343 ◽  
Author(s):  
Bo Jiang ◽  
Wen Ku Shi
Keyword(s):  
Mathematical Model ◽  
Electric Field ◽  
Vibration Isolation ◽  
Simulation Analysis ◽  
Model Simulation ◽  
Simulation Results ◽  
Set Up ◽  
The One ◽  
The Mathematical Model ◽  
Better Than

The mathematical model of the electro-rheological fluid engine mounting system is set up, Combining the electro-rheological fluid effect with hydraulic mount technology and considering the flexibility of the car frame. The simulation model of electro-rheological fluid engine mounting system is build up by the Simulink module of Matlab software to simulate the representative situations of the system, and the displacement and acceleration characteristic curves of the powerplant and the car frame is received. The simulation results indicate that the vibration isolation capability of the system with electric field is better than the one without electric field.

The Impact Analysis of Revolute Pair Clearance to the End Pose Accuracy of Welding Robot

2015 ◽  
Vol 778 ◽  
pp. 259-263
Author(s):  
Fa Jun Zhang ◽  
Lin Zi Li ◽  
Hui Lin ◽  
Yin Lin Pu ◽  
Zhu Xin
Keyword(s):  
Mathematical Model ◽  
Impact Analysis ◽  
Joint Clearance ◽  
Welding Robot ◽  
Movement Characteristic ◽  
Movement Stability ◽  
Simulation Results ◽  
The Impact ◽  
The Mathematical Model ◽  
Welding Position

Various uncertain factors affect the movement of the welding robot, thus welding gun tend to deviate from the theory of welding position which reduces the welding accuracy, of which the revolute pair clearance have an greater effect on the movement of the welding robot. In order to study the influence of revolute pair clearance to the end pose accuracy of welding robot, the mathematical model of revolute pair clearance was established, and the software SolidWorks was used for establishing the welding robot model, making simulations of the mechanical arm with joint clearance and no joint clearance. At last, the movement characteristic of the hinge shaft is attained. The simulation results showed that the shaft velocity and displacement of mechanical arm with joint clearance has a certain degree of fluctuation, which affecting the end pose accuracy of welding robot , and reducing the movement stability and the welding accuracy of welding robot.

Methods of Mathematical Modeling of the Leaching Process of Cobalt-Containing Solutions

2021 ◽  
Vol 316 ◽  
pp. 661-666
Author(s):  
Nataliya V. Mokrova
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Chemical Kinetics ◽  
Group Method ◽  
Data Handling ◽  
Multistage Processes ◽  
Leaching Process ◽  
Proposed Model ◽  
Simulation Results ◽  
The Mathematical Model

Current cobalt processing practices are described. This article discusses the advantages of the group argument accounting method for mathematical modeling of the leaching process of cobalt solutions. Identification of the mathematical model of the cascade of reactors of cobalt-producing is presented. Group method of data handling is allowing: to eliminate the need to calculate quantities of chemical kinetics; to get the opportunity to take into account the results of mixed experiments; to exclude the influence of random interference on the simulation results. The proposed model confirms the capabilities of the group method of data handling for describing multistage processes.

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