scholarly journals Model-Based Predictive Rotor Field-Oriented Angle Compensation for Induction Machine Drives

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2049
Author(s):  
Yang Liu ◽  
Jin Zhao ◽  
Quan Yin
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Dynamic Performance ◽  
Induction Machine ◽  
Predictive Algorithm ◽  
Model Based ◽  
Induction Machine Drives ◽  
The Stability ◽  
Compensation Approach ◽  
Machine Drives

In this paper, a model-based predictive rotor field-oriented angle compensation approach is proposed for induction machine drives. Indirect rotor field-oriented control is widely used in induction machine drives for its simple implementation and low cost. However, the accuracy of the rotor field-oriented angle is affected by variable parameters such as the rotor resistance and inductance. An inaccurate rotor field-oriented angle leads to a degradation of the torque and dynamic performance, especially in the high-speed flux-weakening region. Therefore, the d-axis and q-axis currents in the rotation reference frame are predicted based on the model and compared with the feedback current to correct the rotor field-oriented angle. To improve the stability and robustness, the proposed predictive algorithm is based on the storage current, voltage, and velocity data. The algorithm can be easily realized in real-time. Finally, the simulated and experimental results verify the algorithm’s effectiveness on a 7.5 kW induction machine setup.

scholarly journals Low-Cost SVM-DTC Strategy of Induction Machine Drives Using Single DC-link Current Sensor

2012 ◽  
Vol 1 (3) ◽  
pp. 266-273
Author(s):  
Wei Wang ◽  
Ming Cheng ◽  
Wei Hua ◽  
Shichuan Ding ◽  
Ying Zhu ◽  
...  
Keyword(s):  
Low Cost ◽  
Induction Machine ◽  
Current Sensor ◽  
Induction Machine Drives ◽  
Machine Drives

Dynamic Performance of High-Speed Electric Multiple Unit within Multi-Body System Simulation

2019 ◽  
Vol 12 (4) ◽  
pp. 339-349
Author(s):  
Junguo Wang ◽  
Daoping Gong ◽  
Rui Sun ◽  
Yongxiang Zhao
Keyword(s):  
High Speed ◽  
Rapid Development ◽  
Dynamic Performance ◽  
Body System ◽  
High Speed Railway ◽  
Evaluation Indexes ◽  
Actual Operation ◽  
Multiple Unit ◽  
The Stability ◽  
Multi Body

Background: With the rapid development of the high-speed railway, the dynamic performance such as running stability and safety of the high-speed train is increasingly important. This paper focuses on the dynamic performance of high-speed Electric Multiple Unit (EMU), especially the dynamic characteristics of the bogie frame and car body. Various patents have been discussed in this article. Objective: To develop the Multi-Body System (MBS) model of EMU, verify whether the dynamic performance meets the actual operation requirements, and provide some useful information for dynamics and structural design of the proposed EMU. Methods: According to the technical characteristics of a typical EMU, a MBS model is established via SIMPACK, and the measured data of China high-speed railway is taken as the excitation of track random irregularity. To test the dynamic performance of the EMU, including the stability and safety, some evaluation indexes such as wheel-axle lateral forces, wheel-axle lateral vertical forces, derailment coefficients and wheel unloading rates are also calculated and analyzed in detail. Results: The MBS model of EMU has better dynamic performance especially curving performance, and some evaluation indexes of the stability and safety have also reached China’s high-speed railway standards. Conclusion: The effectiveness of the proposed MBS model is verified, and the dynamic performance of the MBS model can meet the design requirements of high-speed EMU.

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