Operation of PV System With dc–dc Boost-Fed Shunt Active Filter to Mitigate Current Harmonics and Energy Conservation

Due to intensive use of power converters and other non-linear loads, power quality is degrading. The presence of harmonics in the power lines result in greater power losses in distribution, interference problems in communication systems. Non linearity reduces the efficiency and power factor of the system. As the power factor reduces, the reactive power demanded from the supply increases which have no any contribution in energy transfer, so compensation is required. For this, shunt passive filter has been developed but it is bulky and frequency dependent and has many drawbacks. In contrast to passive filter, shunt active filter (SAF) has been developed which is smaller and has wide range of applications. In this paper, shunt active filter based on p-q theory is demonstrated for compensating reactive power and current harmonics. Simulation has been done with and without SAF and results are presented and ended with recommendation and conclusion. An effort is made to reduce the THD of the source current below 5% (specified by IEEE).

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PI controller based shunt active filter for mitigation of current harmonics with p-q control strategy using simulation and RTDS hardware

2011 Annual IEEE India Conference ◽

10.1109/indcon.2011.6139547 ◽

2011 ◽

Author(s):

Suresh Mikkili ◽

A. K. Panda

Keyword(s):

Control Strategy ◽

Pi Controller ◽

Active Filter ◽

Shunt Active Filter ◽

Current Harmonics

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

Journal of Circuits System and Computers ◽

10.1142/s0218126614501321 ◽

2014 ◽

Vol 23 (09) ◽

pp. 1450132 ◽

Cited By ~ 6

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.

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