scholarly journals Optimal Allocation of UPFC to Minimize Real Power Losses using Firefly Algorithm

2020 ◽  
Vol 9 (3) ◽  
pp. 2675-2680
Keyword(s):  
Power System ◽  
Power Flow ◽  
Firefly Algorithm ◽  
Optimal Allocation ◽  
System Stability ◽  
Unified Power Flow Controller ◽  
Power Losses ◽  
Minimal Level ◽  
Real Power ◽  
Power Flow Controller

Reducing the loss of real power and maintaining the system voltage under limits are challenging and major problems in a power system network. Thus, it is desired to adapt an effective method that could clear up these problems or reduce it to the minimal level. Controllers with FACTS, for instance Unified Power Flow Controller (UPFC) can effectively enhance the various power system parameters. This paper proposes a new meta-heuristic algorithm known as firefly algorithm (FA) which is used to select the optimal location and sizing of UPFC , which minimizes the total real power losses and to maintain the voltage under limits, there by maintaining the power system stability. On the IEEE 14 bus system the performance of the proposed method is examined by taking into account the 125%, 150%, 175% and 200% overloading cases.

scholarly journals DYNAMIC STABILITY IMPROVEMENT AND REAL POWER LOSSES REDUCTION OF A MULTI MACHINE POWER SYSTEM USING UNIFIED POWER FLOW CONTROLLER

2013 ◽  
pp. 141-144
Author(s):  
ANIRUDH DUBE ◽  
P. R. SHARMA
Keyword(s):  
Power System ◽  
Power Flow ◽  
System Analysis ◽  
Unified Power Flow Controller ◽  
Power Losses ◽  
Value Analysis ◽  
Real Power ◽  
Flow Controller ◽  
Stability Enhancement ◽  
Power Flow Controller

This paper focuses on three key issues of the power system that is stability enhancement, minimization of real power losses, and improving voltage profile of the buses by placing the Unified Power Flow Controller (UPFC) to the best location in WSCC 3 machine 9 bus system. The comparison between with and without UPFC is carried out to prove that UPFC enhances the stability of the multi machine power system. In this paper the best location of the UPFC is recognized by Power Flow Analysis. Eigen Value Analysis and Continuation Power Flow (CPF) is employed to show the performance of UPFC for stability enhancement. The analysis is carried out using Power System Analysis Toolbox (PSAT) software.

scholarly journals A Comparison of Generalized Unified Power Flow Controller and Load Tap Changing Transformer for Voltage Stability Enhancement in a Power System

2021 ◽  
pp. 21-33
Author(s):  
Adewale Obaro ◽  
Isaiah Adebayo
Keyword(s):  
Power System ◽  
Power Flow ◽  
Voltage Drop ◽  
Unified Power Flow Controller ◽  
Grid System ◽  
Power Losses ◽  
Continuous Increase ◽  
Flow Controller ◽  
Power Flow Controller ◽  
System Power

The continuous increase in power demand and huge power losses in modern power systems have been a growing concern to power utilities. Such phenomenon often results in epileptic power supply, power system instability, supply fluctuations and security problems in many parts of the globe. Identification of suitable places for the installation of reactive power compensators to minimize voltage drop and system power losses in a power system becomes imperative. In this paper, the Newton-Raphson iterative method was used for the power flow solution of the 28 bus Nigerian 330KV grid system. The Generalized Unified Power flow Controller (GUPFC) is installed at identified weak load buses of the Nigerian 28-bus power system to reduce the losses and voltage drop of the system. A comparative analysis of the GUPFC with Load Tap Changing Transformers (LTCT) is also performed. Result obtained shows that the GUPFC can largely (effectively) improve the system power stability and selectively balance the power flow of multi-lines power flows when placed at identified weak buses compared with LTCT.  Thus, GUPFC can be used to reduce overall power losses along transmission lines as well as improve stability overall reliability of the power grid system.

scholarly journals Optimal Placement of Unified Power Flow Controller by TOPSIS Method for Loss Minimization

2021 ◽  
Vol 10 (1) ◽  
pp. 126-131
Author(s):  
Million Alemayehu Bedasso* ◽  
R. Srinu Naik
Keyword(s):  
Power System ◽  
Power Flow ◽  
Reactive Power ◽  
Optimization Technique ◽  
Optimal Placement ◽  
Unified Power Flow Controller ◽  
Power Losses ◽  
Active And Reactive Power ◽  
Flow Controller ◽  
Power Flow Controller

In order to eliminate active and reactive power losses in the power system, this paper proposes TOPSIS and DE algorithm for determining the best location and parameter settings for the Unified Power Flow Controller (UPFC). To mitigate power losses, the best UPFC allocation can be achieved by re-dispatching load flows in power systems. The cost of incorporating UPFC into the power system. As a consequence, the proposed objective feature in this paper was created to address this problem. The IEEE 14-bus and IEEE 30-bus systems were used as case studies in the MATLAB simulations. When compared to particle swarm optimization, the results show that DE is a simple to use, reliable, and efficient optimization technique than (PSO). The network's active and reactive power losses can be significantly reduced by putting UPFC in the optimum position determined by TOPSIS ranking method.

Sign in / Sign up

Export Citation Format

Share Document