ARCHIMEDES OPTIMIZATION-CAPACITORS-DG-DIFFERENT LOAD MODELS-RELIABILITY-LOSSES-VOLTAGE IMPROVEMENT
DESIGN DETAILS
This Matlab design is aimed at evaluating by multi-objective technique for optimal sizing and arrangement of Distributed Generators (DGs) and Shunt Capacitors (SCs), in radial distribution networks (RDN). The problem is formulated to optimize real power losses, Average Voltage Deviation Index (AVDI), and Voltage Stability Index (VSI) of the electrical distribution system. The second factor considered in the design is network reliability. Nowadays reliability is also an important parameter in electrical industry to achieve high security and adequacy of the system. There are three important parameters required to introduce in reliability viz customer composite damage function, average load, and failure rate. Using Matlab, the performance of the design is for IEEE 33 and 69 bus system tested by using AOA considering below 8 scenarios.
1. Base case
2. Only DG Placement
3. Only Capacitor Placement
4. Simultaneous DG and Capacitor Placement
5. Network Reconfiguration
6. DG Placement in reconfigured network
7. Capacitor Placement in reconfigured network
8. Simultaneous DG and Capacitor Placement in reconfigured network
LOAD MODEL
1. Half Load=0.5
2. Normal Load=1
3. Heavy Load =1.6
The multi-objective function is expressed as ,
F(k)=min{w_1 f_1 (k)+w_2 f_2 (k)+w_4 (1/(f_3 (k) ))+}
w_1,w_2 ,and w_3 represent the weighting factors.
RELIABILITY INDICES
1. System Average Interruption Frequency Index (SAIFI)
2. System Average Interruption Frequency Index (SAIDI)
3. Customer Average Interruption Duration Index (CAIDI)
4. Average service availability index (ASAI)
5. Average Service Unavailability Index (ASUI)
6. Expected energy not supplied (EENS)
REFERENCES
Reference Paper-1: Multi-Objective Optimal Allocation of Electric Vehicle Charging Stations and Distributed Generators in Radial Distribution Systems using Metaheuristic Optimization Algorithms
Author’s Name: Venkata K. Babu Ponnam and K. Swarnasri
Source: ETASR
Year: 2020
Reference Paper-2: Grasshopper optimization algorithm based two stage fuzzy multi-objective approach for optimum sizing and placement of distributed generations, shunt capacitors and electric vehicle charging stations.
Author’s Name: Srinivasa Rao Gampaa, Kiran Jasthia, Preetham Golib, D. Dasc, R.C. Bansald
Source: Elsevier
Year: 2019
Reference Paper-3: DG Placement Using Loss Sensitivity Factor Method for Loss Reduction and Reliability Improvement in Distribution System
Author’s Name: G.Sasi Kumar, Dr.S.Sarat Kumar, Dr.S.V.Jayaram Kumar
Source: IJET
Year: 2018
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