PENURAS KUASA AKTIF PIRAU SATU FASA MENGGUNAKAN STRATEGI KAWALAN RINGKAS

2017 ◽  
Vol 79 (6) ◽  
Author(s):  
Yushaizad Yusof ◽  
Radin Zaim Radin Umar ◽  
Nasrudin Abd. Rahim
Keyword(s):  
Power Factor ◽  
Control Strategy ◽  
Single Phase ◽  
Active Power Filter ◽  
Fast Time ◽  
Shunt Active Power Filter ◽  
Current Harmonics ◽  
Power Filter ◽  
Simulink Simulation ◽  
Source Current

This paper describes a single phase shunt active power filter system used in compensating current harmonics and improving electrical line’s power factor via simplified control strategy based on estimation of nonlinear load’s equivalent resistance. By employing MATLAB Simulink simulation tool, the proposed control strategy successfully compensated source current harmonics and corrected line power factor to near unity. Moreover, analysis on the system performance indicated that the system’s achieved fast time response, stabilized system and near zero steady state error. To verify the proposed system, experimental results also presented.

scholarly journals Source current harmonic mitigation of distorted voltage source by using shunt active power filter

2020 ◽  
Vol 10 (4) ◽  
pp. 3967
Author(s):  
Muhammad Ossama Mahmoud ◽  
Wael Mamdouh ◽  
Hamdy Khalil
Keyword(s):  
Input Signal ◽  
Active Power Filter ◽  
Active Power ◽  
Control Circuit ◽  
Voltage Source ◽  
Shunt Active Power Filter ◽  
Current Harmonics ◽  
Power Filter ◽  
Source Current ◽  
Source Voltage

In this paper, three-phase, four-wire shunt active power filter (SAPF) is utilized to mitigate system harmonics of distorted voltage source for unbalanced and nonlinear loads. Basically, the source voltage should be pure sinusoidal waveform to get a good mitigation of source current harmonics. In this under study system, the source voltage is assumed to be harmonic distortion non-sinusoidal voltage source. The phase locked loop (PLL) control circuit is wielded for extracting the fundamental component of the distorted source voltage to use it as an input signal to the SAPF control. Another input signal to the SAPF is the distorted load current. The SAPF control system uses (p-q) theory to calculate the optimum instantaneous current to be injected by the SAPF to mitigate the source current harmonics even the source voltage is harmonic distorted. MATLAB/SIMULINK software package is utilized to simulate the system under study. The effect of SAPF is tested when it’s used with and without the PLL control circuit. The simulation results show that, the THD of source current when using the PLL control circuit is improved to comply with the harmonic limits given in the IEEE 519-1992 and IEC 61000-4-7 standards.

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