Students have successfully defended their comprehensive case projects focused on the development and modeling of electric drive control systems. The work was carried out under the guidance of Associate Professor Kaliyev Zh.Zh. from ALT University and demonstrated a high level of preparedness and proficiency in modern engineering software packages.
The projects consisted of two interrelated parts, encompassing both theoretical calculations and practical modeling:
- Analytical Part (Mathcad):In the first part, students performed a detailed calculation of the characteristics of a DC motor with independent excitation. Mechanical and regulating characteristics were studied, starting and braking modes were calculated, and the operational logic of the rheostatic controller was determined. This stage laid the theoretical foundation for understanding the physical processes within the motor.
- Practical Modeling (SimInTech):The culmination of the work was the development of a logical-command control system for a cargo lift with a drum-rope transmission. A simulation model was created in the SimInTech environment, where an equivalent torque source was used in place of a complex electric motor model. This approach allowed the students to focus on refining the control logic: start, lifting, lowering, load holding, and emergency braking.
Conclusions and Practical Significance:
The presented projects confirmed that the chosen modeling approach effectively enables the study of a mechanical system’s behavior under the influence of various control signals. The students not only mastered the Mathcad and SimInTech tools but also demonstrated an understanding of the stages of control system design, from analytical calculation to computer modeling.
The developed models can serve as a foundation for further enhancement, such as adding position sensors, precise positioning systems, and transitioning to a full-fledged motor model. The projects received high praise for their practical orientation and quality of execution.
