Solar PV Based Shunt Active Filter with p-q Theory Control for Improvement of Power Quality

2017 ◽  
Vol 26 (09) ◽  
pp. 1750133 ◽  
Author(s):  
R. Balamurugan ◽  
R. Nithya
Keyword(s):  
Fuzzy Logic Controller ◽  
Reactive Power ◽  
Salient Feature ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Solar Pv ◽  
Pv System ◽  
Shunt Active Power Filter ◽  
Shunt Active Filter ◽  
Point Of Common Coupling

In this paper, fuzzy logic controller (FLC)-based three-phase shunt active power filter with photovoltaic (PV) system is proposed. This filter comprises voltage source converter (VSC) with DC link capacitor at the input side and is supplied by PV system. The salient feature of the filter is that it provides reactive power compensation with line current harmonic reduction and also neutral compensation at point of common coupling (PCC). The PV system and a battery are connected with VSC through DC–DC converter. This paper also proposes a control algorithm using instantaneous [Formula: see text]-[Formula: see text] theory that generates a reference current to counteract the harmonics. The FLC controls the DC link voltage in reference to the above reference current. The performance of the proposed filter for compensation is confirmed by using the MATLAB/Simulink environment and results are validated.

scholarly journals Reactive Power Management in Solar PV System using Matlab

2021 ◽  
Vol 9 (VI) ◽  
pp. 2079-2085
Author(s):  
Vaibhav S. Raut
Keyword(s):  
High Efficiency ◽  
Reactive Power ◽  
Voltage Source ◽  
Attractive Alternative ◽  
Voltage Source Converter ◽  
Solar Pv ◽  
Pv System ◽  
Alternative Source ◽  
Current Output ◽  
Pv Systems

Photovoltaic (PV) systems propose attractive alternative source of generation because these can be placed near to the load centers when compared with other renewable source of generation. It is therefore rooftop PV is the center of attraction for majority PV systems. The rooftop PV system in general is grid connected and supports the off-grid load with battery backup. The designed system must ensure total evacuation of generated power and with high efficiency of conversion, and utilizes the resource adequately to maximize the utilization of energy. This paper proposes single phase synchronous reference frame (SRF) theory based current controlled PWM controller for the voltage source converter (VSC) to realize maximum generated power evacuation by maintaining the DC link voltage constant without battery support, low THD sinusoidal line synchronized current output, and limited reactive power compensation based on the unutilized capacity of the inverter. PV power is being tracked always at MPP through incremental conductance (IC) method. MATLAB based simulation results shows the efficient working of rooftop PV with proposed control algorithms in grid connected mode with limited reactive power conditioning.

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.

FC/PV Fed SAF with Fuzzy Logic Control for Power Quality Enhancement

2015 ◽  
Vol 5 (4) ◽  
pp. 470 ◽  
Author(s):  
R. Balamurugan ◽  
R. Nithya
Keyword(s):  
Fuzzy Logic ◽  
Power Quality ◽  
Fuzzy Logic Controller ◽  
Reactive Power ◽  
Photovoltaic Cell ◽  
Voltage Source ◽  
Quality Enhancement ◽  
Shunt Active Power Filter ◽  
Q Theory ◽  
Current Controller

In this paper, a Fuel cell (FC) / Photovoltaic cell (PV)/ Battery operated three phase Shunt Active power Filter (SAF) is proposed for improving the power quality at the utility side. Fuzzy based instantaneous p-q theory control is proposed for SAF. This SAF consists of Voltage Source PWM Converter (VSC) and a DC link capacitor supplied by a FC/PV/Battery. The filter provides harmonic mitigation with reactive power compensation and neutral compensation for loads at the Point of Common Coupling (PCC). A Single switch boost DC-DC converter connects the FC/PV/Battery with the VSC to maintain the load. The performance of the proposed SAF is tested in MATLAB / SIMULINK environment with Fuzzy logic controller (FLC). The controller maintains the DC link voltage based on the current reference generated by the p-q theory. The Hysteresis PWM current controller is employed to generate the gating pulses to the switches in VSC. The simulation results of the proposed SAF validate the effectiveness of FLC in power quality enhancement.

scholarly journals Active and reactive power management of grid connected photovoltaic system

2019 ◽  
Vol 13 (3) ◽  
pp. 1324
Author(s):  
Ameerul A. J. Jeman ◽  
Naeem M. S. Hannoon ◽  
Nabil Hidayat ◽  
Mohamed.M.H. Adam ◽  
Ismail Musirin ◽  
...  
Keyword(s):  
Reactive Power ◽  
Photovoltaic System ◽  
Linear Control ◽  
Convergence Time ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Pv System ◽  
Control Approach ◽  
Active And Reactive Power ◽  
Non Linear

<span>Voltage-source converter (VSC) topology is widely used for grid interfacing of distributed generation (DG) systems such as the photovoltaic system (PV). Since the operation of the VSC is essential to ensure quality of active and reactive power injected to the grid, a control approach is needed to deal with the uncertainties in the grid such as faults. This paper presents a non-linear controller design for a three-phase voltage source converter (VSC). The dynamic variables adopted for the VSC are the instantaneous real and reactive power components. The control approach that interface the VSC between the PV system and the grid are subjected to the current-voltage based. PV system injects active power to the grid and local load while utility grid monitors the power compensation of load reactive power. The proposed non-linear control strategy is implemented for the VSC to ensure fast error tracking and finite convergence time. The adaptive nature of the proposed non-linear control provides more robustness, less sluggish fault recovery compared to conventional PI control. The comprehensive numerical model is demonstrated in MATLAB script environment with power system disturbances such as faults in the grid. The simulation of proposed system is being carried out in MATLAB/SIMULINK environment to validate the control scheme. The proposed control system regulates the VSC ac side real and reactive power component and the dc side voltage.</span>

Grid Integration of Single Stage Solar PV System using Three-level Voltage Source Converter

2016 ◽  
Vol 17 (4) ◽  
pp. 425-434 ◽  
Author(s):  
Ikhlaq Hussain ◽  
Maulik Kandpal ◽  
Bhim Singh
Keyword(s):  
Control Algorithm ◽  
Single Stage ◽  
Maximum Power ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Switching Frequency ◽  
Solar Pv ◽  
Pv System ◽  
Switching Losses ◽  
Stage System

Abstract This paper presents a single stage solar PV (photovoltaic) grid integrated power generating system using a three level voltage source converter (VSC) operating at low switching frequency of 900 Hz with robust synchronizing phase locked loop (RS-PLL) based control algorithm. To track the maximum power from solar PV array, an incremental conductance algorithm is used and this maximum power is fed to the grid via three-level VSC. The use of single stage system with three level VSC offers the advantage of low switching losses and the operation at high voltages and high power which results in enhancement of power quality in the proposed system. Simulated results validate the design and control algorithm under steady state and dynamic conditions.

scholarly journals D-STATCOM Control using SRFT Method for PQ Improvement in a PV System

2021 ◽  
Vol 10 (8) ◽  
pp. 113-119
Author(s):  
Namratha Sampath ◽  
P.V.S.S.A Parimala
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Reactive Power ◽  
Control Strategies ◽  
Solar Pv ◽  
Pv System ◽  
Shunt Active Power Filter ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Quality Issues

The set of restrictions defined for a system's electrical characteristics so that the entire electrical system can function in the intended manner and without losses is known as power quality. Power quality issues such as transients, harmonics, voltage swell, sag, flicker, fluctuations, and power factor difficulties are becoming more common as power electronic devices become more widely used. The usage of a Distribution Static Compensator (D-STATCOM) to mitigate power quality issues is discussed in this study. In this case, D-STATCOM functions as a shunt active power filter to reduce harmonics caused by non-linear loads. The simulation studies on a PV-based Cascaded-H-Bridge Multi-Level Inverter i.e Solar PV and Cascaded H Bridge MLI are integrated using Selective Harmonic Elimination method with D-STATCOM injected at the load side to improve power quality are presented in this project. The Solar PV system is mathematically modelled using Boost regulator and P&O MPPT technique and to the D-STATCOM the controller is designed utilizing Synchronous Reference Frame Theory (SRFT) out of many control strategies for reactive power compensation, harmonic mitigation, and power factor enhancement as it is more accurate. A 2nd order low pass filter is employed at the load side to reduce the harmonics to some extent, and both 5-level and 7-level models are evaluated. MATLAB/SIMULINK is used for simulation.

Fuzzy logic controller based Shunt Active Filter control strategies for Power quality improvement Using Different Fuzzy M.F.s

2012 ◽  
Vol 13 (5) ◽  
Author(s):  
Anup Kumar Panda ◽  
Suresh Mikkili
Keyword(s):  
Power Quality ◽  
Fuzzy Logic Controller ◽  
Control Strategies ◽  
Voltage Regulation ◽  
Active Filters ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Shunt Active Filter ◽  
Current Harmonics ◽  
Three Phase

Abstract Current harmonics are one of the most common power quality problems and are usually resolved by the use of shunt active filters (SHAF). Control strategies (p-q and id-iq) for extracting the three-phase reference currents for shunt active power filters are compared, evaluating their performance under different source conditions. Three-phase reference current waveforms generated by proposed scheme are tracked by the three-phase voltage source converter in a hysteresis band control scheme.The performance of the control strategies has been evaluated in terms of harmonic mitigation and DC link voltage regulation. The proposed SHAF with different fuzzy M.F.s (Trapezoidal, Triangular and Gaussian) is able to eliminate the uncertainty in the system and SHAF gains outstanding compensation abilities. The detailed simulation results using MATLAB/SIMULINK software are presented to support the feasibility of proposed control strategies.

Digital Control of Space Vector Pulse Width Modulation Based Shunt Active Filter

2014 ◽  
Vol 573 ◽  
pp. 115-121
Author(s):  
C.S. Subash Kumar ◽  
V. Gopalakrishnan ◽  
R. Dhanasekaran ◽  
B. Vaikundaselvan
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Reactive Power ◽  
Harmonic Distortion ◽  
Voltage Source ◽  
Space Vector ◽  
Shunt Active Power Filter ◽  
Shunt Active Filter ◽  
Source Current ◽  
Harmonic Components

The wide spread use of power electronics equipments in modern electrical systems, has became a major concern due to the adverse effects of harmonics on all the sensitive equipments. This paper presents the implementation of shunt active power filter (SAPF) using source voltage and source current detection. The control and implementation of SAPF is being done by instantaneous active and reactive power, PQ theory for the extraction of harmonics from the fundamental and for the generation of Pulses for the voltage source inverter (VSI), space vector pulse width modulation (SVPWM) is used. The harmonics present in the system are computed and the controller generates PWM signals to inject the compensating harmonic current back into the line to cancel the harmonic components in the distorted line. The performance of proposed topology is first examined by MATLAB-SIMLINK-based simulation and the prototype hardware has been developed using DSP TMS320F28027 processor and the results were verified. The Total harmonic distortion (THD) is below the specified limits.

scholarly journals Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

2021 ◽  
Author(s):  
Akram Qashou ◽  
Sufian Yousef ◽  
Abdallah A. Smadi ◽  
Amani A. AlOmari
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Reactive Power ◽  
Sliding Mode ◽  
Distribution Network ◽  
Harmonic Distortion ◽  
Phase Locked Loop ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Non Linear

AbstractThe purpose of this paper is to describe the design of a Hybrid Series Active Power Filter (HSeAPF) system to improve the quality of power on three-phase power distribution grids. The system controls are comprise of Pulse Width Modulation (PWM) based on the Synchronous Reference Frame (SRF) theory, and supported by Phase Locked Loop (PLL) for generating the switching pulses to control a Voltage Source Converter (VSC). The DC link voltage is controlled by Non-Linear Sliding Mode Control (SMC) for faster response and to ensure that it is maintained at a constant value. When this voltage is compared with Proportional Integral (PI), then the improvements made can be shown. The function of HSeAPF control is to eliminate voltage fluctuations, voltage swell/sag, and prevent voltage/current harmonics are produced by both non-linear loads and small inverters connected to the distribution network. A digital Phase Locked Loop that generates frequencies and an oscillating phase-locked output signal controls the voltage. The results from the simulation indicate that the HSeAPF can effectively suppress the dynamic and harmonic reactive power compensation system. Also, the distribution network has a low Total Harmonic Distortion (< 5%), demonstrating that the designed system is efficient, which is an essential requirement when it comes to the IEEE-519 and IEC 61,000–3-6 standards.

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