Affiliation:
1. Electrical Engineering Department, Annamalai University, Tamilnadu, India
Abstract
Since more distributed energy resources (DER) are being linked to the
electrical grid, the current distributed power system (DPS) is encountering
additional voltage regulation challenges. Traditionally, on-load tap
changers, step voltage regulators, and switched capacitor banks have been
used for voltage regulation in DPS. However, these sources are insufficient
for voltage regulation in current DPS. As a result, reactive power
assistance from a DER unit based on power electronics is intended to adjust
the voltage in the DPS. In terms of flexibility, security, reliability, and
availability, embedded control systems are now being investigated by
researchers for use in power converter-fed DER units. This paper presents a
method for constructing an embedded controller unit based on XynergyXS for
the power converter controller, which includes reactive power regulation in
the DER unit. Furthermore, it proposes dynamic reactive power control in the
DER unit for enhanced DPS voltage regulation. The suggested voltage control
approach is tested in a MATLAB/Simulink model of a practical 85-bus
distributed power system located in the northern Tamilnadu region, India as
well as a modified IEEE 33-bus system. The new control approach investigates
all potential power grid disruptions. The results reveal that the proposed
reactive power control method in DER units enhances network voltage
regulation while reducing the number of switching operations performed by
static voltage regulating units such as on load tap changers and switched
capacitor banks.
Publisher
National Library of Serbia
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Mechanical Engineering,Energy Engineering and Power Technology,Control and Systems Engineering
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