Title :
A study on position servo control systems by frequency-locked technique
Author :
Hsieh, Guan-Chyun
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Inst. of Technol., Taipei, Taiwan
fDate :
8/1/1989 12:00:00 AM
Abstract :
A frequency-pumped controller (FPC) is presented that processes the position servomechanism by the frequency-locked technique. With the proposed FPC, a position/voltage (P/V) transducer, and a voltage-controlled oscillator (VCO), a frequency-locked position servo (FLPS) control system is established. Mathematical models for the FPC and for the FLPS are constructed, and their stability criteria for in-lock and for out-of-lock cases, respectively, are derived. Computer simulation and experimental results confirm the theoretical prediction that the proposed FLPS can provide real-time control, good stability, higher resolution, and higher precision
Keywords :
digital simulation; position control; servomechanisms; stability criteria; computer simulation; frequency-locked technique; frequency-pumped controller; good stability; position servo control systems; position-voltage transducer; real-time control; servomechanism; stability criteria; voltage-controlled oscillator; Control systems; Flexible printed circuits; Frequency; Mathematical model; Servomechanisms; Servosystems; Stability criteria; Transducers; Voltage control; Voltage-controlled oscillators;
Journal_Title :
Industrial Electronics, IEEE Transactions on
