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This paper proposed to applied Support vector machine (SVM) algorithm for classified the fault type on the 500 kV transmission systems with connected in loop configuration. The fault signal was simulated using ATPDraw/EMTP program at frequency 200 kHz. The fault detection was analyzing the high frequency component by discrete wavelet transform (DWT). For the first stage, the coefficient of DWT was...
Renewable energy sources have been of great interest to electricity producers in Thailand. There are many renewable energy sources usually used: wind power, hydropower, geothermal energy, bio energy and solar energy. Thailand is located near the equator, leading to high solar radiation all year. Hence, production of electricity from solar energy has become a more reasonable alternative than other...
Renewable energy gain a lot of attention due to rapid energy consumption growth and environmental issue especially solar power. This paper aim to present the designed and analysis of solar water pump to replace conventional diesel water pump that agriculturist currently used. The prototypes of solar water pump have been built and installed at southern province of Thailand. The prototype of proposed...
This paper deals with a single-input multiple-output mixed-mode second-order filter providing two voltage-mode functions (low-pass and band-pass) and three transconductance-mode functions (low-pass, band-pass and band-reject) based on voltage differencing transconductance amplifier (VDTA). The quality factor and pole frequency can be electronically and orthogonally tuned via the bias current. The...
A current-mode quadrature oscillator using single current follower transconductance amplifier (CFTA) as active element is given. The oscillator has high output impedance, employs two grounded capacitors, single resistor and has electronic control on oscillation condition and on oscillation frequency. The proposed circuit is suitable for integrated circuit (IC) architecture. PSpice simulation result...
A current-mode quadrature oscillator using second generation current controlled current conveyors (CCCIIs) as active element is given. The oscillator has high output impedance, employs two grounded capacitors, one electronic resistor and has electronic and independent control on oscillation condition and on oscillation frequency. The proposed circuit is suitable for integrated circuit (IC) architecture...
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