scholarly journals Improvement of Power Quality in Distribution System using Photovoltaic based DPFC

2021 ◽  
Vol 9 (VI) ◽  
pp. 1038-1042
Author(s):  
Mahesh Shende
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Power Flow ◽  
High Reliability ◽  
Photovoltaic System ◽  
Unified Power Flow Controller ◽  
Distributed Power ◽  
Flow Controller ◽  
Distributed Power Flow ◽  
Power Flow Controller

In Modern Power System power quality is the main issue of the power companies. Improvement of power quality in distribution system using photovoltaic based DPFC is declared in this paper. Flexible AC Transmission System (FACTS) device which is known as distributed power flow controller (DPFC)is used. DPFC is derived from UPFC by eliminating common dc link between series and shunt converter. Unified power flow controller (UPFC) is widely used and control all parameters of the system. The UPFC handle the current and voltage with high rating; therefore, the cost of system is high. Therefore, distributed power flow controller (DPFC) is used due to high control capability, high Reliability & low cost. DPFC also measures the transmission angle, line impedance and bus voltage. In distribution system problems occur like voltage sag/swell, Harmonics etc. Photovoltaic system is used as source for DPFC.

Analysis of Distributed Power Flow Controller in Power System Network for Improving Power Flow Control

2016 ◽  
Vol 2 (3) ◽  
pp. 510
Author(s):  
Kuldeep Saini ◽  
Aakash Saxena ◽  
M.R. Farooqi
Keyword(s):  
Power Flow ◽  
High Reliability ◽  
Unified Power Flow Controller ◽  
Interconnected System ◽  
Distributed Power ◽  
Modeling And Analysis ◽  
The Common ◽  
Flow Controller ◽  
Distributed Power Flow ◽  
Power Flow Controller

<p>In this paper, a new power flow controlling device called Distributed Power Flow Controller (DPFC) is presented that offers the same control capability as the unified power-flow controller (UPFC) but with much lower cost and high reliability. The DPFC eliminates the common DC link within the UPFC, to enable the independent operation of the shunt and the series converter. The D-FACTS concept is employed to the series converter to increase the reliability. Multiple low-rating single-phase converters replace the high-rating three-phase series converter, which significantly reduces the cost and increases the reliability. The active power that is exchanged through the common DC link in the UPFC is now transferred through the transmission line at the 3rd harmonic frequency. The DPFC is modeled in a rotating dq-frame. The modeling and analysis of DPFC in a two area two bus interconnected system is done in MATLAB/Simulink environment and comparison between the DPFC and UPFC considering the power flow and cost are also shown.</p><p> </p>

scholarly journals Modeling a Distributed Power Flow Controller with a PEM Fuel Cell for Power Quality Improvement

2018 ◽  
Vol 8 (1) ◽  
pp. 2585-2589 ◽  
Author(s):  
J. Chakravorty ◽  
J. Saraswat ◽  
V. Bhatia
Keyword(s):  
Fuel Cell ◽  
Power Quality ◽  
Power Flow ◽  
Electrical Power ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Distributed Power ◽  
Flow Controller ◽  
Distributed Power Flow ◽  
Power Flow Controller

Electrical power demand is increasing at a relatively fast rate over the last years. Because of this increasing demand the power system is becoming very complex. Both electric utilities and end users of electric power are becoming increasingly concerned about power quality. This paper presents a new concept of distributed power flow controller (DPFC), which has been implemented with a proton exchange membrane (PEM) fuel cell. In this paper, a PEM fuel cell has been simulated in Simulink/MATLAB and then has been used in the proposed DPFC model. The new proposed DPFC model has been tested on a IEEE 30 bus system.

scholarly journals Power Quality Improvement Using Distributed Power Flow Controller with BWO-Based FOPID Controller

2021 ◽  
Vol 13 (20) ◽  
pp. 11194
Author(s):  
B. Srikanth Goud ◽  
Ch. Rami Reddy ◽  
Mohit Bajaj ◽  
Ehab E. Elattar ◽  
Salah Kamel
Keyword(s):  
Power Quality ◽  
Power Flow ◽  
Pi Controller ◽  
Optimization Techniques ◽  
Fine Tuning ◽  
Black Widow ◽  
Distributed Power ◽  
Flow Controller ◽  
Distributed Power Flow ◽  
Power Flow Controller

The integration of hybrid renewable energy sources (HRESs) into the grid is currently being encouraged to meet the increasing demand for electric power and reduce fossil fuels which are causing environmental-related problems. Integration of HRESs into the grid can create some power quality (PQ) problems. To mitigate PQ problems and improve the performance of grid-connected HRESs some flexible devices should be used. This paper presents a distributed power flow controller (DPFC), as a type of flexible device to mitigate some PQ problems, including voltage sag, swell, disruptions, and eliminating the harmonics in a hybrid power system (HPS). The HPS presented in this work comprises a photo voltaic (PV) system, wind turbine (WT) and battery energy storage system (BESS). As a result, black widow optimization (BWO) with DPFC with real and reactive power (DPFC-PQ) is built in this paper to solve the PQ issues in HRES systems. The main aim of the work is to mitigate PQ problems and compensate for load demand in the HRES scheme. The controller used to drive this DPFC-PQ is a fractional-order PID (FOPID) controller optimized by the black widow optimization (BWO) technique. To assess the capability of BWO in fine-tuning the FOPID controller parameters, twelve optimization techniques were presented: P&O, PSO, Cuckoo, GA, GSA, BBO, Whale, ESA, RFA, ASO, and EVORFA. Additionally, a comparison between the FOPID controller and the classical PI controller is introduced. The results showed that the proposed BWO-FOPID controller for DFPC had mitigated the PQ problems in grid-connected HRESs. The system’s performance with the presented BWO-FOPID controller is compared with eleven optimization techniques used to optimize the FOPID controller and also compared with the conventional PI controller. The design of the proposed system is implemented in the MATLAB/Simulink platform and performances were analyzed.

Impact of Distributed Power Flow Controller to Improve Line Flow Based on PWM Control with PI Technique

2016 ◽  
Vol 4 (1) ◽  
pp. 57
Author(s):  
Subramani C ◽  
S. S. Dash ◽  
Vimala C ◽  
Uma Mageshwari
Keyword(s):  
Transmission Lines ◽  
Power Flow ◽  
Single Phase ◽  
Unified Power Flow Controller ◽  
Distributed Power ◽  
Flexible Ac Transmission System ◽  
Flow Controller ◽  
Ac Transmission ◽  
Distributed Power Flow ◽  
Power Flow Controller

<p>In this paper we presents a new component within the flexible ac-transmission system (FACTS) family, called Distributed Power-Flow Controller (DPFC). The DPFC is derived from the unified power-flow controller (UPFC). The DPFC can be considered as a UPFC with an eliminated common dc link. The active power exchange between the shunt and series converters, which is through the common dc link in the UPFC, is now through the transmission lines at the third-harmonic frequency. The DPFC employs the distributed FACTS (DFACTS) concept, which is to use multiple small-size single-phase converters instead of the one large-size three-phase series converter in the UPFC. The large number of series converters provides redundancy, thereby increasing the system reliability. As the D-FACTS converters are single-phase and floating with respect to the ground, there is no high-voltage isolation required between the phases. Accordingly, the cost of the DPFC system is lower than the UPFC. The DPFC has the same control capability as the UPFC, which comprises the adjustment of the line impedance, the transmission angle, and the bus voltage. The controller is designed to achieve the most appropriate operating point based on the real power priority.</p>

scholarly journals Performance of Distributed Power Flow Controller in Transmission System based on Fuzzy Logic Controller

2019 ◽  
Vol 8 (3) ◽  
pp. 2039-2043
Keyword(s):  
Transmission Lines ◽  
Power Flow ◽  
Fuzzy Logic Controller ◽  
Reactive Power ◽  
Unified Power Flow Controller ◽  
Distributed Power ◽  
Reactive Power Flow ◽  
Flow Controller ◽  
Distributed Power Flow ◽  
Power Flow Controller

Many of the Power Flow Controlling Devices are mostly used in the Transmission Lines in order to monitor the real as well as reactive power-flow variations. In this work provide an innovative power flow controlling device such as Distributed Power Flow Controller, this device also belongs to the FACTS family. This device is emerged from the Unified Power Flow Controller, there is a small differentiation between both these devices that is the common dc-link. In case of DPFC there is no existence of the dc link which connects both the converters. By design a DPFC device in MATLAB/Simulink to analyze the transmission line parameters

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