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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.
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Charean, A.
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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 4-leg voltage source inverter
(2015-09-28)
Kaenthong, K.
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Tipsuwanporn, V.
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Numsomran, A.
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Sawaengsinkasikit, W.
This research is design and construct of Sine Pulse Width Modulation (SPWM) 4-leg voltage source inverter for controlling speed of asymmetrical two-phase induction motor. The Sine PWM switching signal is generated by ARM7 (Adu7024) microcontroller which is programmable and cheap, while having high frequency to generating switching signal. Two ICs No. IR2130 are used for motor driving part. The characteristics of output current signal are nearly closed to sinusoidal pattern resulting to high efficiency for motor control. 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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9-Level inverter for induction motor control
(2010-12-01)
Tipsuwanporn, V.
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Sawaengsinkasikit, W.
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Numsomran, A.
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Somsamai, K.
This article presents speed controlling for single phase induction motor. Principally, 9-level, diode-clamp inverter used to control voltages per frequency is widely used because of its high efficiency to control the motor. In this article, ARM7 model ADU7024 is used as microcontroller to generate eight pulse signals and send to the output voltage amplifier by co-connecting to the modulation module using IC 7408. The obtained output signals are combined to IOR 2130 to generate 15-volt output for driving each gate. The 9-level, diode-clamp is employed to control single-phase induction motor. Such method when was tested to 220-V, 1/3 Hp, 50 Hz motor shown that it could control the voltage per frequency properly. When using the 9-level, diode-clamp inverter controlled by modulation, the results shown that the output waveform were very similar to the sinusoidal wave comparing to the typical waveform, resulting to drive the load efficiently. ©ICROS.
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Application of three-level voltage inverter on FPGA chip for 3-phase induction motor
(2009-12-01)
Tipsuwanporn, V.
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Sawaengsinkasikit, W.
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Numsamran, A.
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Jaisue, R.
This research is a design of three-level voltage inverter on FPGA chip for controlling 3-phase induction motor. SVM (Space Vector Modulation) signal is generated by using FPGA chip XC2S50-5tq-144 because it is programmable and has high frequency to generate switching signal, and also, has low price. Part of motor driving uses of Ic no.IR2130 three phase bridge driver which has overvoltage and short circuit protection system. With closer sinusoidal output voltage signal results to closer sinusoidal current signal is obtained. Lower harmonics of voltage and current results to higher motor control efficiency. For design of the 3 phase induction motor speed control signal, principle of voltage/frequency (V/f) ratio control is used which can control the motor speed to provide constant torque.
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Harmonies reduction system using active filter based on computer unit
(2005-12-01)
Tipsuwanporn, V.
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Thueksathit, W.
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Sawaengsinkasikit, W.
This paper presents the harmonics analysis and compensation which occured in the electrical system. We use the electrical signal analysis based on FFT technique in order to calculate harmonics that occurred in the electrical system. The harmonics are compensated by using active harmonic filters. This system consists of a computer which works as controller, processor, analysis, monitor and database unit together with a microcontroller which has A/D converter is used for sampling the electrical signals via a parallel port of the computer. The active harmonic filters (IGBT Module) are controlled by PWM (Pulse Width Modulation) signal from the microcontroller. The PWM data (Switching angle) is programmed by computer. The data such as voltages, currents, the total harmonic distortion etc., can be saved as database for analysis.The harmonics compensation increase high efficiency of the electrical system and decrease the damage and incorrect operation that may happen with electrical devices. © 2005 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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Adjustable energy control with ICBRM technique
(2002-01-01)
Tipsuwanporn, V.
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Suesut, T.
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Thepsatorn, P.
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Piyarat, W.
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Sawaengsinkasikit, W.
This paper presents a control method for single-phase and three-phase AC voltage supply by mean of ICBRM variable energy control technique which provides suitable power supply feeding to load requirements, and also, improve the feeding efficiency resulting in increased energy saving. The Integral Cycle Binary Rate Modulation (ICBRM) signals are integral cycle compositions of 8-bit binary rate multiplier (BRM) and 50 Hz, three-phase AC voltage signals which are divided into 8 parts per cycle, so that 2040 patterns are provided for the single-phase and three-phase feeding applications. Experimental results shows that such methods can be properly implemented for lighting bulbs and three-phase induction motor with low energy loss. This mean that the technique provides high efficiency performance and conducts energy saving.
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Motor speed identification using multilayer feedforward neural networks
(2001-12-01)
Tipsuwanporn, V.
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Tarasantisuk, C.
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Numsumran, A.
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Sawaengsinkasikit, W.
This paper presents an artificial neural networks (ANNs) based high performance speed identified for a dc motor control system. The purpose is to achieve accurate trajectory control of the speed, specially when motor and load parameters are unknown. The unknown nonlinear dynamics of the motor and the load are captured by multilayer feedforward neural network contains three layers. The activation function of the hidden layers are logsigmoid function and the training technique is use the backpropagation technique.
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New technique controlling of 4-quadrant dc motor drive
(2000-12-01)
Tipsuwanporn, V.
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Sum-Im, T.
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Suesut, T.
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Piyarat, W.
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Sawaengsinkasikit, W.
The 4-quadrant dc motor drive control considered the technique of BRM is proposed on the expectation of fast response. Power and torque control are imposed on both no load and loaded condition. The outcome response time is less than 1 seconds, when the resolution of input energy supply is 255 waveforms with scan time of 0.667 milliseconds. The ripple is less than 1%. The control condition of 4-quadrant are operated in quadrant I and IV for forward and reverse rotation and quadrant II and III are for sudden braking by regenerative, resulted in giving reversing time less than 3 seconds.

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