Dynamic Takagi-Sugeno Model for the Control of Ultrasonic Motor

Figure 14

Step response comparison between model output and tested data (𝑁𝑟𝑒𝑓=90 r/min, 𝑈𝑟𝑒𝑓=300 V, load torque = 0.2 Nm).

(a) The curve of drive voltage and frequency

(b) Comparison between model output and tested data