Single-phase Pump Motor Control via AC Chopper

• Main Authors: Wen-Tai Wu, 吳文泰
• Other Authors: Chian-Song Chiu
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/21723790523578816761

碩士 === 中原大學 === 電機工程研究所 === 105 === This paper explores an architecture and method that allows the signal-phase induction motor with a power regulating function, to control the pump with a constant pressure. The hardware architecture uses an AC chopper to control the input voltage of the AC power supply of the induction motor via pulse width modulation (PWM), and to set the motor output power according to the pump pressure. In detial, the models of centrifugal pump and induction motor are derivated. Next, the PID digital controlleris realized by simulink simulation. Finally, the AC splitter and related circuits are implemented, The single-chip dsPIC33FJ16MC102 is used for developing control procedures, and returning date of the pressure sensor. The AC motor is controlled to change the output of mechine power and achieve the pressure control of pump.