Implementation of a New Wavelet Controller for Interior Permanent-Magnet Motor Drives

Novel Wavelet-Fuzzy Based Indirect Field Oriented Control of Induction Motor Drives

“…These gain constants acts on the error signal as shown in (6). In terms of frequency information, the proportional and the integral terms capture the low frequency information of the error signal which corresponds to the steady state performance of the controller, and the derivative term captures the high frequency information of the error signal which corresponds to the transient performance of the controller.…”

“…Shanlin and Yuzhe proposed a novel flux and torque estimation method based on a wavelet network, for an induction motor control system [5]. Khan and Rahman [6], [7] implemented a wavelet based multiresolution PID controller in real time for precise speed control of an interior PMSM drive. Yousef et al [8] have developed wavelet network based controllers for motion control of a DC motor.…”

Analysis of Wavelet Controller for Robustness in Electronic Differential of Electric Vehicles: An Investigation and Numerical Developments

“…Until now, electronic differentials have been used to control the motors with a speed controller governed by a PID or Fuzzy controller [1][2][3][4][5][6][7]. Recently, the discrete wavelet transform (DWT) has been replaced the PID controllers and thankful to technology for its robustness [8][9][10][11][12][13][14]. WT found applications in ac drives, where pulse-width modulation (PWM) are carried out for single-phase (dc-ac) and three-phase (ac-dc) converters, performed better than standard PWM techniques by experimental verifications [8][9].…”

“…WT found applications in ac drives, where pulse-width modulation (PWM) are carried out for single-phase (dc-ac) and three-phase (ac-dc) converters, performed better than standard PWM techniques by experimental verifications [8][9]. WT techniques are also extended to ac motor applications [10][11][12][13][14], in particular to control electrical vehicles (EV). For steering control of electrical vehicles fuzzy-neural control WT algorithms are implemented (ac motor drives) [15].…”

“…Decomposition begins when a discrete signal '( ) of length N is passed through a high pass filter, resulting in an impulse response *( ) and through a low pass filter results in impulse response+( ). A 1-level decomposition of DWT is constituted by the outputs of high and low pass filter and mathematically expressed as below [10][11][12][13][14][19][20]:…”