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Performance analysis of six-phase asynchronous motor in non-full-phase operation
abstract

Compared with three-phase motor drive system, multiphase motor system has obvious advantages in high power, high reliability and low DC voltage power supply application. However, as a new technology, there are still many problems to be studied and discussed in theory and practice.

In this paper, the modeling of multiphase motor and the control technology of non-full-phase operation are studied, and the simulation analysis of six-phase induction motor is carried out.

Firstly, the mathematical model and harmonic analysis of multiphase induction motor are analyzed, and the temporal and spatial harmonics of multiphase induction motor under the condition of inverter power supply are analyzed. The simulation model of six-phase induction motor in static coordinate system is established, the concrete steps of Matlab/Simulink implementation are given, and the characteristics of six-phase induction motor are analyzed and studied. The effects of phase current voltage, stator flux linkage and space vector of multiphase motor and their effects on harmonics are analyzed.

In this paper, the dynamic mathematical model of multiphase motor running without phase is also established, and the six-phase motor running without phase is simulated. The changes of phase current voltage, stator flux linkage, speed, torque and load capacity are studied when the phase is missing.

The six-phase induction motor model and six-phase open-phase motor model are built by using Matlab/Simulink, and the related experiments and analysis are carried out. In order to have a certain understanding of the operation of multiphase induction motor, there is a rational understanding of the lack of phase of multiphase induction motor.

Through the simulation of six-phase motor and lack of phase, we can skillfully run the functions of Matlab/Simulink, laying a solid foundation for future study and research.

abstract

catalogue

abstract

I

abstract

two

1

foreword

1

1. 1

introduce

1

1.2

Establishment of mathematical model of multiphase motor

1

1.3

Modeling and Simulation of Six-phase Induction Motor

2

1.4

Establishment and analysis of six-phase motor non-full-phase simulation

2

1.5

Development status of research on speed regulation system of multiphase induction motor

2

1.6

The research background of this topic and the main work of this paper.

four

2.

Mathematical model of multiphase induction motor

six

2. 1

Mathematical model of natural multi-phase induction motor

six

2.2

Decoupling transformation of vector space of multiphase induction motor

eight

2.3

Summary of this chapter

eight

three

Simulation software (MATLAB

/Simulink) is introduced.

10

3. 1

Overview of MATLAB

10

3.2

The Historical Background of MATLAB's Generation

10

3.3

Language characteristics of MATLAB

1 1

3.4

Introduction to Simulink

12

4.

Modeling and Simulation of Six-phase Induction Motor

14

4. 1

Winding structure of six-phase induction motor

14

4.2

Mathematical model of six-phase induction motor

15

4.3

Simulation model of six-phase induction motor

18

4.4

Results and analysis

22

five

Modeling and Simulation of Six-phase Induction Motor with Lack of Phase

30

5. 1

order

30

5.2

Dynamic mathematical model of multiphase induction motor running without phase.

30

5.3 Dynamic mathematical model of six-phase induction motor without phase

3 1

5.4 Modeling and Analysis of Asynchronous Motor

35

Section 5.5 of this chapter

38

six

Modeling and simulation of six-phase induction motor without two phases

39

6. 1

Dynamic mathematical model of six-phase induction motor running without phase.

39

6.2 Modeling and Analysis of Non-two-phase Orthogonal Induction Motor

40

Section 6.3 of this chapter

Forty-four

seven

Conclusion and prospect

45

7. 1 Full-text work summary

45

7.2

Future work prospect

45

Express gratitude/gratitude

46

refer to

47

1

foreword

1. 1

introduce

matlab

It has powerful matrix operation ability and simple drawing function. Simulink is a software package used in Matlab to model, simulate and analyze dynamic systems.

. Matlab/Simulink is an open editing environment, and users can develop their own models. The development methods include: ① combining the existing model, ② programming with S function module.

Mode ① The idea is clear and simple, but more modules need to be called. Mode 2 requires programming and some programming skills, but the expression is close to mathematical expression. Simulink

The simulation is interactive, the parameters of the model can be changed at will, and the results can be seen immediately after changing the parameters. Using Matlab/Simulink

The provided module constructs a motor model that can be used for simulation according to the existing motor mathematical model, and gives the simulation results to verify the correctness of the model.

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