Power Quality Improvement Using Cuckoo Search Based Multi-Level Facts Controller

Abstract

Nowadays, the improvement of power quality is the major concern in power system scenario. These problems mainly caused due to utilization of different load conditions to the power system. To mitigate these problems different methods are implemented in literature. As per literature analysis the one of the Flexible AC Transmission System called as unified power quality conditioner (UPQC) plays a key role. The series and shunt controllers of UPQC designed with 9-level inverters to reduce the harmonic distortions. An instantaneous PQ theory is used to generate the reference signals required for series and shunt controllers along with dq-transformation analysis. A Cuckoo optimization technique is used to tune the parameters of PI controller in shunt controller to achieve better harmonic distortions and improve power quality. This proposed system is to be tested and verified in MATLAB/SIMULINK.

Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

“…In ref. [19], the synchronous reference frame-power angle control (SRF-PAC) strategy was developed, which divides the reactive power load between two inverters using the PI methodology. This approach's performance was assessed under different operating circumstances, incorporating PV irradiation variation, voltage fluctuation, and voltage harmonic injection.…”

“…The literature mentioned above primarily focuses on PQ issues in a single microgrid operating in grid-connected mode. However, these techniques have limitations, such as complex design, poor reliability [12], the need for improvement [13,15,16], complex structure [14], inadequate performance due to unstable voltage and current supply [17,18,20], and high cost [19,21]. To address these problems and enhance system performance in the distribution system, integration with Flexible AC Transmission Systems (FACTS) is proposed.…”