Numsomran, Arjin
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Preferred name
Numsomran, Arjin
Alternative Name
Numsomran, A.
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Email
arjin.nu@kmitl.ac.th
6 results
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Item type:Publication, Asymmetrical two-phase induction motor speed controlled by multilevel inverter employing cascaded transformers(2017-08-03); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A single phase 9-level inverter controlling based on Phase Lock Loop technique(2012-12-01); Phipek, K.In this paper is presented the multilevel inverter which is controlled by Phase Lock Loop (PLL) controller in close-loop system. The multilevel inverter was multiplied voltage levels at output. The inner PLL controller was controlled by PI control in order to firing angle of PWM signal. This control scheme is estimated phase and frequency in DQ-transform of PLL controller on time domain. The PLL controllers were locking constant the frequency and voltage of inverter through the signal estimated in DQ-dimension. The proposed methods determine high-precision and accuracy of switching frequency in PLL characteristic based on time domain. Moreover, in this paper represented the 2<sup>nd</sup> order phase lock loop (PLL) analysis methodology. The 2<sup>nd</sup> order phase lock loop demonstrated in transfer function form that is measured and analysis the signal in time domain. The close-loop control was analyzed the fast response and stability in frequency domain which is obviously behavior of Phase Lock Loop (PLL). © 2012 ICROS. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, New adjustable frequency controlled SPIM drive(2000-12-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Asymmetrical two-phase induction motor speed controlled with 3-leg voltage source inverter(2015-06-16); Charean, A.This research is design and construct of Sine Pulse Width Modulation (SPWM) 3-leg voltage source inverter for controlling speed of asymmetrical two-phase induction motor. ICs No. IRF2130 are used for motor driving part. The characteristics of output current signal are nearly closed to sinusoidal pattern, so that low harmonics and high efficiency for motor control are obtained. The Sine PWM switching signal is generated by ARM7 (Adu7024) micro-controller which is programmable and cheap, while having high frequency to generating switching signal. In order to control the speed of induction motor, ratios of voltage to frequency (V/f) are controlled and constant torques are obtained by implementing technique of PI close-loop control. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Implementation of resonance in AC Motor through Multi-Level inverter based on PLL technique(2015-01-01); Charean, A.In this paper presents the multi-level inverter which operates at the desired frequency. The desired frequency is designed with the filter on Phase Lock Loop (PLL) controller. This scheme proposed is controlled in the close-loop system by PLL controller and the tracking resonance controller. The multi-level inverter was used to drive the AC motor which changes the speed of the motor instantaneously. The PWM signal of the controller was controlled by PLL controller and designs the band-pass filter by resonance controller. This control scheme is estimated phase and frequency in DQ-Transform of the PLL controller with the AC motor characteristic. The speed of the motor was detected the position in the stationary frame. The current of the motor is used for feedback and generating the central frequency for controls the speed of the motor. The PLL controllers were tracked and lock the frequency of the desired signal which is determined high-precision and accuracy of switching sequence in PLL controller for motor control. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A digital power output measurement based on binary rate multiplication technique(2001-12-01);