scholarly journals Optimal Reactive Power Compensation by Shunt Capacitor Sizing Using Harmony Search Algorithm in Unbalanced Radial Distribution System for Power loss Minimization

2013 ◽  
Vol 5 (4) ◽  
pp. 474-491 ◽  
Author(s):  
K Muthukumar ◽  
◽  
S Jayalalitha ◽  
Keyword(s):  
Distribution System ◽  
Power Loss ◽  
Reactive Power ◽  
Search Algorithm ◽  
Harmony Search ◽  
Reactive Power Compensation ◽  
Harmony Search Algorithm ◽  
Loss Minimization ◽  
Radial Distribution System ◽  
Shunt Capacitor

scholarly journals Voltage and Frequency Based Optimal Load Shedding using Improved Self Adaptive Harmony Search Algorithm

2019 ◽  
Vol 8 (11) ◽  
pp. 475-480
Keyword(s):  
Power Loss ◽  
Reactive Power ◽  
Search Algorithm ◽  
Harmony Search ◽  
Stability Index ◽  
Harmony Search Algorithm ◽  
Rate Of Change ◽  
Load Shedding ◽  
Voltage Dependent ◽  
Self Adaptive

This study presents, two load shedding scheme that are simulated on IEEE-14 bus systems are voltage dependent priority based approach and voltage and frequency based NVSI methods. The frequency-based method is designed to consider the rate of change of frequency to estimate the power loss and thereby trigger the load shedding when the frequency or rate of change of frequency exceeds the corresponding thresholds. A novel method voltage and frequency-based load shedding scheme is designed to estimate the real and reactive power losses using frequency. After estimating the power loss, the buses are indexed using the Novel Voltage Stability Index (NVSI) to select the load buses for load shedding. The loads to be shed at each of the buses are determined using the improved self adaptive harmony search(ISAHS) algorithm. Simulation results of voltage and frequency based NVSI method are presented in comparison with voltage dependent priority based approach.

scholarly journals TRUE POWER LOSS REDUCTION BY HARMONY SEARCH ALGORITHM

2018 ◽  
Vol 6 (9) ◽  
pp. 196-205
Author(s):  
K. Lenin
Keyword(s):  
Power Loss ◽  
Reactive Power ◽  
Search Algorithm ◽  
Harmony Search ◽  
Population Based ◽  
Test System ◽  
Harmony Search Algorithm ◽  
Perfect State ◽  
Real Power ◽  
Power Loss Reduction

This paper presents Harmony Search algorithm (HS) for solving the reactive power problem.  Real power loss minimization is the major objective & also voltage profiles are should be kept within the limits.  This paper introduces a new search model the harmony search (HS) algorithm is a relatively new population-based metaheuristic optimization algorithm. It emulates the music improvisation progression where musicians improvise their instruments’ pitch by searching for a perfect state of harmony. In order to evaluate the efficiency of the proposed algorithm, it has been tested on practical 191 test system & real power loss has been considerably reduced.

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