scholarly journals Enhancing The Performace of Load Real Power Flow using Dual UPQCDual PV System based on Dual Fuzzy Sugeno Method

2021 ◽  
Vol 13 (1) ◽  
pp. 21-56
Author(s):  
Amirullah Amirullah ◽  
◽  
Adiananda Adiananda ◽  
Ontoseno Penangsang ◽  
Adi Soeprijanto ◽  
...  
Keyword(s):  
Power Flow ◽  
Pv System ◽  
Real Power

scholarly journals Modeling, Control and Power Management Strategy of a Grid connected Hybrid Energy System

2018 ◽  
Vol 8 (3) ◽  
pp. 1345 ◽  
Author(s):  
Sujit Kumar Bhuyan ◽  
Prakash Kumar Hota ◽  
Bhagabat Panda
Keyword(s):  
Fuel Cell ◽  
Power Management ◽  
Storage Tank ◽  
Power Flow ◽  
Management Strategies ◽  
Energy System ◽  
Pv System ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Load Demand

This paper presents the detailed modeling of various components of a grid connected hybrid energy system (HES) consisting of a photovoltaic (PV) system, a solid oxide fuel cell (SOFC), an electrolyzer and a hydrogen storage tank with a power flow controller. Also, a valve controlled by the proposed controller decides how much amount of fuel is consumed by fuel cell according to the load demand. In this paper fuel cell is used instead of battery bank because fuel cell is free from pollution. The control and power management strategies are also developed. When the PV power is sufficient then it can fulfill the load demand as well as feeds the extra power to the electrolyzer. By using the electrolyzer, the hydrogen is generated from the water and stored in storage tank and this hydrogen act as a fuel to SOFC. If the availability of the power from the PV system cannot fulfill the load demand, then the fuel cell fulfills the required load demand. The SOFC takes required amount of hydrogen as fuel, which is controlled by the PID controller through a valve. Effectiveness of this technology is verified by the help of computer simulations in MATLAB/SIMULINK environment under various loading conditions and promising results are obtained.

Voltage Stability Improvement in Fourteen Bus System during Line Interruption using DPFC

2017 ◽  
Vol 8 (2) ◽  
pp. 705
Author(s):  
Akhib Khan Bahamani ◽  
G.M. Sreerama Reddy ◽  
V. Ganesh
Keyword(s):  
Normal Level ◽  
Power Flow ◽  
Voltage Stability ◽  
Reactive Power ◽  
Simulation Studies ◽  
State Space Method ◽  
Real Power ◽  
Simulation Results ◽  
Space Method ◽  
Bus System

<p>DPFC is proposed in the present work to improve voltage stability of fourteen bus system during line interruption. The voltage across the load decreases due to the interruption of the line. State space method is used to calculate Line currents and bus voltages. The ability of DPFC to bring voltage, real power and reactive power to normal level is presented in this paper. The simulation results for healthy system, line interrupted system without DPFC and with DPFC are presented. The results of comparative study are presented to show the improvement in power quality. The simulation studies indicate that the power flow with DPFC during line outage is almost equal to the power during healthy condition.</p>

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.

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