Title :
A constant air flow rate control of blower for residential applications
Author :
Yang, Sheng-Ming
Author_Institution :
Dept. of Mech. Eng., Tamkang Univ., Taipei, Taiwan
Abstract :
This paper presents a technique to control a blower for residential applications at constant air flow rate using an induction motor drive. The control scheme combines a variable volt/hertz ratio inverter drive and an average motor current regulation loop to achieve control of the motor torque-speed characteristics, consequently controlling the air flow rate of the blower which the motor is driving. The controller is simple to implement and practical for commercialization. It is also reliable, since no external pressure or air flow sensor is required. Both a theoretical derivation and an experimental verification for the control scheme are presented in this paper
Keywords :
HVAC; angular velocity control; electric current control; flow control; induction motor drives; invertors; machine control; torque control; average motor current regulation loop; blower; constant air flow rate control; induction motor drive; motor torque-speed control; residential applications; variable V/f ratio inverter drive; Control systems; Costs; Ducts; Electrical products industry; Heat pumps; Home appliances; Humidity control; Inverters; Mechanical sensors; Torque control;
Journal_Title :
Industry Applications, IEEE Transactions on
