Research on Closed-Loop Control and Flow Noise for Piezoelectric Type Micro Flow Controller for Electric Propulsion

EasyChair Preprint 7749

Abstract

Aiming at the control problem of micro flow controller using piezoelectric ceramics as driving components in electric propulsion, we directly use the collected flow as the control state and give a closed-loop control method which can eliminate the hysteresis and creep characteristics of piezoelectric ceramic. Through the experiment with the real flow control system, it is verified that the control method can effectively stabilize and follow the flow, and the influence of ambient temperature on the closed-loop flow control is analyzed. Then by analyzing the power spectral density analysis of the obtained flow data, it can be seen that the power spectral density of the flow under closed-loop control is large at low frequency, that the flow noise is significant at low frequency.

Keyphrases: PSD, closed loop control, flow control, noise influence, piezoelectric ceramics

@booklet{EasyChair:7749,
  author    = {Yingying Zhang and Xudong Wang and Xinju Fu and Zhanhai Zhang and Zhiping Li and Zongliang Li},
  title     = {Research on Closed-Loop Control and Flow Noise for Piezoelectric Type Micro Flow Controller for Electric Propulsion},
  howpublished = {EasyChair Preprint 7749},
  year      = {EasyChair, 2022}}