Characteristic Analysis and Error Compensation Method of Space Vector Pulse Width Modulation-Based Driver for...

Area of Science:

• Electrical Engineering
• Control Systems
• Motor Drives

Background:

• Permanent magnet synchronous motors (PMSMs) are crucial in aviation, aerospace, marine, and industry due to their precision and efficiency.
• Non-ideal driver characteristics introduce errors that degrade PMSM control accuracy, dynamic performance, and robustness.

Purpose of the Study:

• To analyze the root causes of non-ideal driver characteristics in PMSMs.
• To develop and validate a real-time compensation method to enhance PMSM control accuracy.

Main Methods:

• Analysis of non-ideal driver characteristics using space vector pulse width modulation (SVPWM) principles.
• Development of a real-time voltage compensation method based on a derived input-output voltage model.
• Parameter estimation using test data and validation through simulations and experiments.

Main Results:

• The proposed compensation method significantly reduced voltage error by 88.07% and speed error by 53.08% (RMS).
• Effective mitigation of non-ideal driver influences on PMSM performance was demonstrated.
• Enhanced driving and speed control accuracies were achieved.

Conclusions:

• The developed real-time compensation method is practical, cost-effective, and substantially improves PMSM control performance.
• Addressing driver non-idealities is vital for optimizing PMSM applications.
• The method offers a robust solution for enhancing system precision and efficiency.