OPTIMAL SITING AND SIZING OF SSSC IN INPS USING MODIFIED SALP SARM ALGORITHM CONSIDERING OPTIMAL REACTIVE POWER DISPATCH PROBLEM
Date
2024-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
I.O.E
Abstract
In a power system, effective coordination between generation and demand is crucial.
With the growing demand for electrical energy, optimizing the operation of all
components to maximize efficiency becomes imperative. FACTS devices are
essentially tools designed to enhance the efficiency of the transmission system. In a
power system network, these devices are employed to enhance the power transfer
capacity of transmission lines. Their utilization results in improved voltage stability,
transient stability, voltage regulation, reliability, and increased thermal limits within the
transmission network. The Static Synchronous Series Compensator (SSSC) is a method
of series compensation applied in the transmission system. Its purpose is to either raise
or lower the voltage drop along the line, thereby managing the power flow through the
transmission line. By introducing voltage in quadrature with the line current, the SSSC
regulates the power flow by controlling the equivalent impedance of the transmission
line. The SSSC's output voltage is entirely controllable and operates independently of
the line current. The Optimal Reactive Power Dispatch (ORPD) problem is tough
because of non linear and non-convex functions. Addition of SSSC makes the solution
even harder by bringing in complex dynamics for controlling power flow. To deal with
these challenges, we need smart techniques and computer methods to find good
solutions with efficient and reliable optimization algorithm to solve the problem of
ORPD and identify the optimal location and rating of SSSC. In this thesis, Modified
Salp Swarm Algorithm is used to solve the ORPD with and without the SSSC controller
to minimize power losses and voltage deviations as well as improve the voltage stability
on the Intergrated Nepal Power System (INPS) system and hence the result is compared
with the standards IEEE 30-bus system. After solving the ORPD problem and load flow
analysis, initial line losses of 119.108 MW (5.8% of total load) reduced to 35.336
Description
In a power system, effective coordination between generation and demand is crucial.
With the growing demand for electrical energy, optimizing the operation of all
components to maximize efficiency becomes imperative. FACTS devices are
essentially tools designed to enhance the efficiency of the transmission system.
Keywords
Flexible alternating current transmission systems, static synchronous series compensator, Optimal reactive power dispatch, Integrated Nepalese Power System