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IAESONLINEIAESONLINE

Journal Indonesian Journal of Electrical Engineering and Informatics (IJEEI)Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Abstract

This paper presents a novel approach to improving the starting performance of three-phase induction motors by integrating an optimized S-curve acceleration profile based on trigonometric functions into a Field-Oriented Control (FOC) framework. Unlike conventional third- and fifth-order polynomial trajectories that suffer from limited jerk continuity and insufficient mechanical damping, the proposed method ensures smooth transitions in acceleration and jerk using sinusoidal functions. The core contribution of this work lies in the development and application of a second-order continuous trigonometric velocity trajectory that significantly reduces mechanical shocks and current oscillations during motor startup and stop phases. Furthermore, the method is designed for real-time implementation on FPGA hardware, enabling high-resolution pulse-width modulation (PWM) suitable for embedded motion control systems. Simulation and experimental results demonstrate superior motion smoothness, improved torque tracking, and enhanced mechanical reliability compared to traditional methods. This research provides a practical and effective solution for applications requiring precise soft-start/stop capabilities, particularly in elevator systems and other high-performance industrial drives.

Conclusion

In conclusion, this paper presents a hybrid motor control strategy combining Field-Oriented Control (FOC) with a trigonometric S-curve (SC-Trig) acceleration profile to enhance the startup performance of three-phase induction motors.The proposed method offers second-order continuity in acceleration and jerk, improving upon conventional polynomial profiles.Experimental results confirm the effectiveness of the approach, demonstrating smooth acceleration, minimal torque ripple, and suitability for real-time implementation on FPGA hardware.

Future Research

Future research should focus on closed-loop experimental validation with actual motor-inverter connections to assess robustness under varying load conditions and disturbances. Furthermore, extending the trigonometric trajectory approach to multi-axis coordinated control systems, such as robotic arms or CNC machines, could unlock new possibilities for precise and synchronized motion control. Finally, investigating adaptive trigonometric trajectory generation based on real-time motor and load parameters could further optimize performance and enhance system resilience, offering a more intelligent and responsive control solution for complex industrial applications. These advancements will contribute to the development of more efficient, reliable, and user-friendly motor control systems, ultimately benefiting a wide range of industries and applications.

References

1. On Algorithms for Planning S-Curve Motion Profiles - Kim Doang Nguyen, Teck-Chew Ng, I-Ming Chen, 2008.... doi.org/10.5772/5652On Algorithms for Planning S Curve Motion Profiles Kim Doang Nguyen Teck Chew Ng I Ming Chen 2008 doi 10 5772 5652
2. S-CURVE ALGORITHM OF ACCELERATION/DECELERATION WITH SMOOTHLY-LIMITED JERK IN HIGH-SPEED EQUIPMENT CONTROL... mmscience.eu/journal/issues/november-2019/articles/s-curve-algorithm-of-acceleration-deceleration-with-smoothly-limited-jerk-in-high-speed-equipment-control-tasksS CURVE ALGORITHM OF ACCELERATION DECELERATION WITH SMOOTHLY LIMITED JERK IN HIGH SPEED EQUIPMENT CONTROL mmscience eu journal issues november 2019 articles s curve algorithm of acceleration deceleration with smoothly limited jerk in high speed equipment control tasks
3. S-type speed control curve based on the number of pulses - IOPscience. type speed control curve based... doi.org/10.1088/1742-6596/2196/1/012038S type speed control curve based on the number of pulses IOPscience type speed control curve based doi 10 1088 1742 6596 2196 1 012038

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