Adaptive hysteresis band controlled grid connected PV system with active filter function

2012 ◽  
Author(s):  
S. Y. Mosazadeh ◽  
S. H. Fathi ◽  
M. Hajizadeh ◽  
A. R. Sheykholeslami
Keyword(s):  
Active Filter ◽  
Pv System ◽  
Filter Function

PHOTOVOLTAIC SYSTEM WITH A DC–DC CONVERTER FED SHUNT ACTIVE FILTER FOR POWER QUALITY IMPROVEMENT USING ICos Φ ALGORITHM

2014 ◽  
Vol 23 (09) ◽  
pp. 1450132 ◽  
Author(s):  
G. VIJAYAKUMAR ◽  
R. ANITA
Keyword(s):  
Fuzzy Logic Controller ◽  
Reactive Power ◽  
Active Filter ◽  
Photovoltaic System ◽  
Pv System ◽  
Shunt Active Filter ◽  
Point Tracking ◽  
Consequent Reduction ◽  
Small Industry ◽  
Power Point

This paper presents an operation of photovoltaic (PV)-based shunt active filter (SAF) for significant energy conservation, harmonic mitigation and reactive power compensation. When the PV system generates excessive or equal power required to the load demand, then the coordinating logic disconnects the service grid from the load and with a consequent reduction of panel tariff and global warming gasses. The PV module is connected to the DC side of SAF through the DC–DC converter. Converter switch is controlled by fuzzy-based perturb & observe (P&O) maximum power point tracking (MPPT) algorithm and it eliminates the drawback in the conventional PV system. The reference currents are extracted by the fuzzy logic controller-based ICos Φ control strategy. This proposed PV-SAF, if connected at the terminals of a small industry or a home or a small enlightening institution can avoid the use of interruptible power supply and individual stabilizer. An emulation using MATLAB Simulink is presented to validate the advantage of the proposed system.

Performance of a grid connected PV system used as active filter

2004 ◽  
Vol 45 (15-16) ◽  
pp. 2417-2428 ◽  
Author(s):  
Hugo Calleja ◽  
Humberto Jimenez
Keyword(s):  
Active Filter ◽  
Pv System

scholarly journals Programmable Current-Mode Universal Active Filters Employing Current Conveyors

1998 ◽  
Vol 21 (3) ◽  
pp. 221-230 ◽  
Author(s):  
Muhammad Taher Abuelma'atti
Keyword(s):  
Current Mode ◽  
Higher Order ◽  
Active Filter ◽  
Second Order ◽  
Active Filters ◽  
Current Conveyors ◽  
Filter Function ◽  
Circuit Topology ◽  
Order Filter ◽  
High Output

Novel current-mode active filter circuits using current-conveyors are presented. The proposed circuits can realize all standard second-order filter functions. The circuits enjoy high output impedances and can, therefore, be easily cascaded to produce higher order filters. Moreover, the realized filter function can be easily programmed using at most a 13-bit digital number without changing the circuit topology.

scholarly journals Application of PI controller based active filter for harmonic mitigation of grid-connected PV-system

2021 ◽  
Vol 10 (5) ◽  
pp. 2377-2383
Author(s):  
Achala Khandelwal ◽  
Pragya Nema
Keyword(s):  
Control Strategies ◽  
Pi Controller ◽  
Active Filter ◽  
Pv System ◽  
Current Harmonics ◽  
Passive Filters ◽  
Recent Trends ◽  
Pv Grid ◽  
Electric Supply

The recent trends show the interconnection of PV system with electric grid. With this configuration the issue of harmonics comes into existence. The mounting figure of power-electronic instruments has formed considerable impression on the power-quality of electric supply. Harmonics deformations have conventionally been handled amid the application of passive-LC filters. Active Filter has emerged as a good substitute for passive filters to reduce the harmonics to great extent as it has numerous benefits over the former filters. The active filter’s most vital part is the applied control strategies. Several researches are being under process to advance the functioning of the filter. One of the important control requirements of filter is the regulation of DC link up capacitor voltage. Here the voltage supervision of capacitor is being done using PI controller. The paper show current harmonics compensation of PV grid connected system using PI controller based active filter. Simulation outcomes have been shown which displays the harmonics are within the IEEE boundaries.

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