Development of Thyristor Controlled DC Electrical Drive Test Bench with Virtual Inertia Emulation

This paper describes development of DC motor test bench that is based on thyristor power electronics converters and allows multiple type load tests for scientific and education purposes. The control of the test bench is automated thus allowing create multiple load profiles, automatic data acquisition that makes it more attractive for student's laboratory practice. The digital twin of the test bench has been created into Matlab Simulink software. Using this model it is possible analyze stability of the speed regulator theoretically and design stable PID regulator and after that provide experimental result validation by using test bench. The paper will discuss control algorithms that are used in the motor control and motor parameter experimental detection. There is implemented also possibility virtually emulate different values of inertia thus showing influence of different inertias on speed regulation process.