Time-varying Fourier decomposition based modeling and simulation of active power filter

2006 ◽  
Author(s):  
Li Qiong-lin ◽  
Liu Hui-jin
Keyword(s):  
Modeling And Simulation ◽  
Active Power Filter ◽  
Active Power ◽  
Time Varying ◽  
Fourier Decomposition ◽  
Power Filter

Comparing and Simulation of APF Control Strategies with Time Varying Inductive Load

2014 ◽  
Vol 662 ◽  
pp. 187-190
Author(s):  
Ji Bo Wan ◽  
Li Xia Zhang ◽  
Zhi Yuan Wei ◽  
Wei Kang
Keyword(s):  
Linear Theory ◽  
Control Strategies ◽  
Active Power Filter ◽  
Active Power ◽  
Impedance Change ◽  
Time Varying ◽  
Harmonic Suppression ◽  
Inductive Load ◽  
Power Filter ◽  
Filtering Effect

According to the harmonic with phase controlled rectifying technology producing applied oil deposit, this paper adopts APF (active power filter) to filter out the harmonic. The current hysteresis, triangular wave and SVPWM-three kinds of control strategies are discussed. The filter effecting of three strategies are sketched. Aiming at the drawback, it show that the strategy and method with APF based on switched linear theory. The simulation results show that the filtering effect of switched linear theory is better where harmonic is serious; the trigger angle and harmonic is small, and there is no obvious difference compared with other three strategies. Therefore Linear switches suitable for harmonic suppression, When the impedance change big and triggering angle of rectifier equipment change small.

Power Quality Improvement of High Voltage DC Link using Modified Shunt Active Power Filter

2018 ◽  
Vol 1 (1) ◽  
pp. 54-66
Author(s):  
Rakan Khalil Antar ◽  
Basil Mohammed Saied ◽  
Rafid Ahmed Khalil
Keyword(s):  
Power Quality ◽  
High Voltage ◽  
Pulse Width Modulation ◽  
Active Power Filter ◽  
Active Power ◽  
Voltage Source ◽  
Active Power Filters ◽  
Power Filter ◽  
Power Filters ◽  
Power Quality Improvement

A new control strategy for active power filters is proposed, modeled and implemented in order to improve the power quality of a line commutated converter High voltage DC link. The ability of reactive power and harmonics reductions are generally met by using passive and active power filters. In this paper, modified active power filter with a modified harmonics pulse width modulation algorithm is used to minimize the source harmonics and force the AC supply current to be in the same phase with AC voltage source at both sending and receiving sides of a line commutated converter high voltage DC link. Therefore, it is considered as power factor corrector and harmonics eliminator with random variations in the load current. The modified harmonics pulse width modulation algorithm is applicable for active power filter based on a three-phase five-level and seven-level cascaded H-bridge voltage source inverter. Simulation results show that the suggested modified multilevel active power filters improve total harmonics distortion of both voltage and current with almost unity effective power factor at both AC sides of high voltage DC link. Therefore, modified active power filter is an effective tool for power quality improvement and preferable for line commutated converter high voltage DC link at different load conditions.

Synchronous Reference Scheme for Improving the Active Power Filter Performance by using Fuzzy Controller

2014 ◽  
Vol 2 (1) ◽  
pp. 15-21
Author(s):  
Appikonda Mohan ◽  
◽  
Naveen Bolisetti ◽  
Chiranjeevi Tirumalasetty ◽  
Mothiram Bhukya ◽  
...  
Keyword(s):  
Fuzzy Controller ◽  
Active Power Filter ◽  
Active Power ◽  
Filter Performance ◽  
Power Filter ◽  
Reference Scheme
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