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Asymmetrical two-phase induction motor speed controlled by multilevel inverter employing cascaded transformers
(2017-08-03)
Tipsuwanpom, V.
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Kaenthong, K.
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Numsomran, A.
;
Charean, A.
;
Sawaengsinkasikit, W.
This research presented multilevel inverter using cascade transformers to supply the output voltage levels which are used to control speed of asymmetrical two-phase induction motor. Two sets of full bridge inverters and transformer with difference of number of turn ratio are combined to generate the voltage levels to supply each winding of asymmetrical two-phase induction motor. Triangular multicarrier sine pulse width modulation signal was generated by Arduino Due AT91SAM3X8E microcontroller and IC number IR2130 was used for power circuit. Multilevel inverter was presented to use a low level of input voltage as multilevel of output voltage is high that voltage stress on switches are reduced. The experiment shows the result of speed controlled by volt per hertz constant so as to be sure steady torque and PI method technique was used to closed-loop control.
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Asymmetrical two-phase induction motor speed controlled with 3-leg voltage source inverter
(2015-06-16)
Kaenthong, K.
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Tipsuwanporn, V.
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Numsomran, A.
;
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.
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Implementation of resonance in AC Motor through Multi-Level inverter based on PLL technique
(2015-01-01)
Phipek, K.
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Tipsuwanpom, V.
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Numsomran, A.
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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.
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A single phase 9-level inverter controlling based on Phase Lock Loop technique
(2012-12-01)
Tipsuwanporn, V.
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Charean, A.
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Numsomran, A.
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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.
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Design and implementation multilevel inverter for 3φ induction motor speed control with RBM chopper technique embedded on FPGA
(2006-01-01)
Tipsuwanporn, V.
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Keanthong, K.
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Charean, A.
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Runghimmawan, T.
This paper introduces on designing of Regular-based Binary Multiplier: RBM signal embedded on Field Programmable Gate Array: FPGA, which control induction motor speed. Various form of 8-bit RBM signal are generated and choppered with the multi level -inverter output voltage whose switching angle is provided for determining amplitude of fundamental frequency and eliminating unrequired low-order harmonics. Objectives of this switching technique is improvement of the inverter output signal in term of total harmonic distortion voltage reduction (%THD) while controlling the motor. Such motor's efficiency and performance are improved while voltage to frequency ratio is maintained constantly for stable torque during control. © 2006 IEEE.
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Adjustable frequency control using BRM for induction heating
(2004-12-01)
Tipsuwanporn, V.
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Intajag, S.
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Charean, A.
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Sawaengsinkasikit, W.
This paper proposes a method for controlling energy distribution to 1 phase induction heating coil by using the Binary Rate Modulation (BRM) Technique. Such method provides proper frequency to the heating coil's requirement by control the frequency at the resonance point, that is, 64-kHZ frequency band. System design are classified to 2 parts. The first part determines main frequency, and the second part generates the frequency from the 8-bit BRM derived from IC no. PAL22V10 in order to control the frequency for Full-bridge connected inverter when supplying the energy required by the 1 phase induction heating coil. Therefore, efficiency of the energy supply can be increate.
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Multilevel regular-based binary multiplier for SPIM speed control
(2003-01-01)
Tipsuwamporn, V.
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Sompracha, C.
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Piyarat, W.
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Charean, A.
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Sawaengsinkasikit, W.
This paper presents multilevel regular-based binary multiplier switching method and parallel-full bridge inverter circuit for controlling speed of single-phase induction motor (SPIM). By constructing various types of 8 bit regular-based binary multiplier signal (RBM) modulated by single-phase multilevel signal, and then generating inverter output signal. This technique can improve the inverter output signal's performance, which demonstrates in term of reduction of total harmonic distortion (THD) and lower-order harmonic when applying to control the motor, resulting to improve the motor efficiency and performance.
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Identification of motion control system using genetic algorithms
(2001-12-01)
Tipsuwanporn, V.
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Piyarat, W.
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Tarasantisuk, C.
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Suesut, T.
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Charean, A.
The soft computing has been applying to a wide variety of control systems in industry because of their control capability and flexibility. They are powerful to handle the complicated mechanical systems with various nonlinear which are difficult to be modeled as mathematical formulas. This paper presents a novel autonomous algorithm for the identification of unknown structured mechanical systems using Genetic Algorithms (GA), where the optimal order of a system and the optimal set of coefficient polynomial can be determined by the optimization ability of GA.
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A digital power output measurement based on binary rate multiplication technique
(2001-12-01)
Tipsuwanporn, V.
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Sattho, U.
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Numsomran, A.
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Jaruvanawat, A.
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Charean, A.
A new design of a power output measurement of an audio power amplifier is presented. The design is based on the Binary rate multiplication technique(BRM) which is a digital multiplier. A signal proportion to the output voltage of the power amplifier, is applied for control the voltage to frequency converter(VFC) to produce the output frequency, which proportion to the output voltage of amplifier. At the same time, a signal proportion to the output current of power amplifier is applied to die analog to digital converter(ADC) to produce the Binary bit rate that proportion to the output current. The VFC output and ADC output are applied to a binary rate multiplier(BRM). The BRM frequency output is summed over a specified period of time to provide the power amplifier power output information. In addition, the intelligent power output measurement had implemented in this system. With this implementation, this system capable to adjust the input signal automatically to find the maximum power output without the expensive equipment such as the audio function generator, oscilloscope etc.
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New adjustable frequency controlled SPIM drive
(2000-12-01)
Tipsuwanporn, V.
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Numsomran, A.
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Piyarat, W.
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Thepsathorn, P.
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Charean, A.
This paper presents the methodology of Single Phase Induction Motor (SPIM) speed controlling by Multi frequency and new Binary Rate Multipliers (BRM) technique that gives rise to suitable energy supply to motor at any instant. Knowing the voltage and current, power is calculated by vector space method. The result is feedback to two Proportional-Integral (PI) controllers for processing by means of frequency 40 to 80 Hz and BRM which gives the patterns up to 256 forms. It shows fast time response of returning to normal state, both loading and no load, not exceed 1.0 seconds. The superiority of this technique is that, both apparent and reactive power decrease while running at no load and full load power factor increase up to 0.444 and 0.633 respectively. Thus, higher efficiency is achieved.

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