Achieve the same level control system can guarantee minimum phase system

Because piezoelectric material according to the applied voltage to produce a corresponding deformation of the regulator as desired (actuator), the piezoelectric material in the deformation corresponding to the voltage generated as ideal sensor (sensor). Vibration suppression of the flexible structure, shape control, they want the piezoelectric  electric transformer  in the same location. Studies have shown that this approach can achieve the same level control system to ensure the system is minimum phase. Prevent the control, the number of vibration modes due to  mcb circuit breaker error generated, vibration may cause overflow (spillover) phenomenon, thereby to ensure  Voltage stabilizer  Therefore, it was proposed to sensors, actuators do in a piezoelectric material, so that the piezoelectric sensors and actuators can be in the same position. This method is called self-induction regulator (self-sensing ac-tuator). However, this method is in practice difficult to achieve.