scholarly journals Performance evaluation and load demand management of grid connected hybrid wind-solar-battery system

2020 ◽  
Vol 9 (3) ◽  
pp. 223
Author(s):  
K. M. Venkatachalam ◽  
V. Saravanan
Keyword(s):  
Demand Response ◽  
Single Phase ◽  
Reference Value ◽  
Voltage Source ◽  
Solar Pv ◽  
Distribution Grid ◽  
Pv System ◽  
Load Demand ◽  
Ac Power ◽  
Dc Bus

<div data-canvas-width="325.8629661358597">In this paper, Performance of the grid connected hybrid wind-solar energy</div><div data-canvas-width="38.15327554928442">system and load demand response of the battery integrated single phase voltage source inverter is presented. The wind energy conversion system is</div><div data-canvas-width="397.2481505744809">generating AC power and the solar PV system is generating DC power and</div><div data-canvas-width="240.71571255795203">both are integrating with battery in the common DC bus. The output voltage</div><div data-canvas-width="284.91922495464627">of the wind and solar system are controlling using dc-dc converters and it</div><div data-canvas-width="397.2100987704092">achieved more than the battery voltage. P&amp;O algorithm used MPPT based</div><div data-canvas-width="188.4705855674259">voltage controller is driving the dc-dc converter with a reference voltage</div><div data-canvas-width="37.43029127192098">value of the battery. The single-phase full-bridge converter is converting DC</div><div data-canvas-width="397.2735184438622">to AC power and feeding into the standalone AC loads and distribution grid</div><div data-canvas-width="180.08650473694817">with IEEE 519 standard. The bi-directional converter is controlling the directions of power flow and it operates two modes namely inverter mode and rectifier mode based on a voltage level of the battery. In this bi-directional converter is controlling by the PI controller with the reference value of the DC bus voltage and load current. The power quality and demand response of the inverter is observing at various types of load conditions in standalone mode and grid-connected mode using experimental results.</div>

scholarly journals Bidirectional Battery Interface in Standalone Solar PV System for Electrification in Rural Areas

2021 ◽  
Vol 5 (2) ◽  
pp. 59
Author(s):  
Yuwono Bimo Purnomo ◽  
F. Danang Wijaya ◽  
Eka Firmansyah
Keyword(s):  
Rural Areas ◽  
High Efficiency ◽  
High Reliability ◽  
Reference Value ◽  
Solar Pv ◽  
Pv System ◽  
Solar Pv System ◽  
Dc Bus ◽  
Bus Voltage ◽  
Power Capability

In a standalone photovoltaic (PV) system, a bidirectional DC converter (BDC) is needed to prevent the battery from damage caused by DC bus voltage variation. In this paper, BDC was applied in a standalone solar PV system to interface the battery with a DC bus in a standalone PV system. Therefore, its bidirectional power capability was focused on improving save battery operation while maintaining high power quality delivery. A non-isolated, buck and boost topology for the BDC configuration was used to interface the battery with the DC bus. PID controller-based control strategy was chosen for easy implementation, high reliability, and high dynamic performance. A simulation was conducted using MATLAB Simulink program. The simulation results show that the implementation of the BDC controller can maintain the DC bus voltage to 100 V, have high efficiency at 99.18% in boost mode and 99.48% in buck mode. To prevent the battery from overcharging condition, the BDC stops the charging process and then works as a voltage regulator to maintain the DC bus voltage at reference value.

Feed‐forward DC‐bus control loop applied to a single‐phase grid‐connected PV system operating with PSO‐based MPPT technique and active power‐line conditioning

2016 ◽  
Vol 11 (1) ◽  
pp. 183-193 ◽  
Author(s):  
Sérgio Augusto OLiveira da Silva ◽  
Leonardo Poltronieri Sampaio ◽  
Fernando Marcos de Oliveira ◽  
Fábio Renan Durand
Keyword(s):  
Single Phase ◽  
Power Line ◽  
Active Power ◽  
Control Loop ◽  
Pv System ◽  
Feed Forward ◽  
Dc Bus ◽  
System Operating

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 Determining the Hosting Capacity of Solar Photovoltaic in a Radial Distribution Network Using an Analytical Approach

2019 ◽  
Vol 5 ◽  
pp. 15-25
Author(s):  
Suraj Dahal ◽  
Ajay Kumar Jha ◽  
Nawraj Bhattarai ◽  
Anil Kumar Panjiyar
Keyword(s):  
Power Flow ◽  
Positive Impact ◽  
Flow Simulation ◽  
Load Flow ◽  
Optimal Placement ◽  
Solar Pv ◽  
Voltage Profile ◽  
Distribution Grid ◽  
Pv System ◽  
Power Loss Reduction

Integrating high photovoltaic (PV) on distribution grid system has a positive impact by significantly reducing the losses and improving the voltage profile at the same time reducing the pollution of the environment However, integrating high proportions of PV in the distribution grid can bring the grid to its operational limits and result in power quality issues. The maximum PV capacity that can be integrated without incurring any grid impacts is referred to as the PV hosting capacity of the grid. This paper intends to evaluate the hosting capacity of solar PV in Dodhara-Chandani (DoC) distribution feeder as one of the feeder of Integrated Nepal Power System (INPS), considering grid parameters and operating condition in Nepal. Three main criteria were investigated for determining the hosting capacity of PV; reverse power flow, maximum voltage deviation of feeder and current carrying limit of conductor. The analysis has been performed by means of static load-flow simulation in Electrical Transient & Analysis Program (ETAP) and coding in MATLAB R2017a. The study shows that PV of rated capacity 687kWp can be installed at a point of interconnection (POI) whereas an optimal placement of solar PV is found to be at 18th node (in between starting and end of the feeder) considering minimum system losses. The minimum voltage profile at end of the feeder has improved by 8 % while the active power loss reduction of network has reduced by 83.6 % after the integration of solar PV. The results indicate voltage at different buses and the ampacity of most of the conductors have been improved after the integration of PV system into DoC feeder.

scholarly journals Least mean sixth control approach for three-phase three-wire grid-integrated PV system

2021 ◽  
Vol 12 (4) ◽  
pp. 2131
Author(s):  
Touheed Khan ◽  
Mohammed Asim ◽  
Mohammad Saood Manzar ◽  
Md Ibrahim ◽  
Shaikh Sadaf Afzal Ahmed
Keyword(s):  
System Performance ◽  
Solar Irradiation ◽  
Voltage Source ◽  
System Modelling ◽  
Solar Pv ◽  
Pv System ◽  
Control Approach ◽  
Pv Array ◽  
Three Phase ◽  
Conductance Method

<p><span lang="EN-US">This work proposes an adaptive filter based on a new least mean sixth control approach with incremental conductance method of MPP for 3-phase grid-incorporated photovoltaic (PV) system. The proposed system comprises a PV array, 3-phase DC to AC converter, maximum power point tracker (MPPT), three-phase electronic load, and a 3-phase grid. The combination of solar PV array and the voltage source converter (VSC) supplies power to the grid. The 3-phase inverter as a distribution static synchronous compensator (D-STATCOM) improves the quality of the system performance in case of zero solar irradiation. D-STATCOM also reduces total harmonic distortion (THD) in grid currents, improves power factor, and maintainsa constant voltage at the point of common coupling (PCC). The system modelling and simulation is achieved on MATLAB/Simulink. The proposed system performance has been found satisfactory and conform to IEEE-519 standards.</span></p>

Sign in / Sign up

Export Citation Format

Share Document