Generation of new harmonics caused by the processing of DQ transformation in power quality compensators

Summary Recently, both utilities and consumers have paid great attention to voltage fluctuation (flicker) problem, which is defined as low‐frequency fluctuation on the base signal of voltage. For mitigating the flicker, identification of its source is the first step. In this paper, a new method is proposed for identifying the location of flicker sources in a multi‐flicker sources power network in a more reliable and precise manner by a minimum number of monitoring points. This method is based on the wavelet transform (WT), the approximate model of the line and flicker power theory. In addition, in this method, a new factor is proposed for determining the contributions of individual consumers and utility providers in the global flicker level of a common coupling bus‐bar. For validating the performance of the proposed method, comprehensive simulations have been performed in MATLAB environment on a single‐ and multi‐flicker sources system based on IEEE 34 node test feeder. As proved by the results, the proposed method is able to identify the contributions and locations of flicker sources with higher reliability and accuracy compared with other methods.

Section: Introductionmentioning

confidence: 99%

A new method with minimum number of monitoring points for flicker source tracing by wavelet transform

Banaem

Abbasi

Tousi

2019

“…PV-based DSTATCOM to improve power quality using SRF theory has been presented. 28,29 It provided better control for reactive power compensation, minimized the voltage variations, and led to better utilization of solar energy. PV-DSTACTCOM using adaptive techniques have been implemented to improve the power quality and to decrease the generation through traditional sources.…”

Section: Related Work Available In Literaturementioning

confidence: 99%

“…In Kumar and Bansal, a PV‐SAPF involving adaptive neuro‐fuzzy inference system‐based control strategy has been implemented to improve the power quality and it also provided the cost benefit analysis. PV‐based DSTATCOM to improve power quality using SRF theory has been presented . It provided better control for reactive power compensation, minimized the voltage variations, and led to better utilization of solar energy.…”

Section: Introductionmentioning

confidence: 99%

Improving power quality and load profile using PV‐Battery‐SAPF system with metaheuristic tuning and its HIL validation

Kumar

Bansal

Kumar

2020

Summary Nonlinear load results in inferior power quality and a non‐uniform power demand curve. This gets aggravated due to the charging of electric vehicles. This paper presents a new control approach of integrating a photovoltaic (PV) cell with battery storage to a shunt active power filter (SAPF) for electric vehicle (EV) applications. The multifunctional PV‐Battery‐integrated SAPF (PV‐Battery‐SAPF) performs harmonic mitigation along with clean power generation, energy storage, uniform load demand curve, and battery swapping. It is achieved through a two‐stage topology. In the first stage, maximum power point (MPP) of a PV array is robustly tracked using metaheuristic algorithms like cuckoo search algorithm and particle swarm optimization. In the second stage, an ant colony optimization‐tuned controller is developed which adaptively controls the SAPF to improve the power quality. The suggested method provides efficient MPP tracking, lesser total harmonic distortion, better dynamic system performance, and appropriate charging/discharging of battery leading to increased system reliability. The proposed system is validated in real time on a hardware‐in‐the‐loop (HIL) testing platform.

“…The voltage and current characteristics of PV array changes with irradiation and temperature. 24,25 It provides better control for reactive power compensation, minimizes the voltage variations, and yields better utilization of solar energy. Numerous MPPT strategies have been created and actualized such as perturb and observe (P&O), incremental and conductance (I&C), fractional open circuit voltage and fractional short circuit current, etc.…”

Section: Introductionmentioning

confidence: 99%

“…PV-based distribution static compensator (DSTATCOM) to improve power quality using SRF theory has been presented. 24,25 It provides better control for reactive power compensation, minimizes the voltage variations, and yields better utilization of solar energy. Wavelet-based strategy has been implemented to minimize the harmonic distortion, voltage sag, and swell.…”

Section: Introductionmentioning

confidence: 99%

Real‐time implementation of adaptive PV‐integrated SAPF to enhance power quality

Kumar

Bansal

2019

Summary This paper presents the design and implementation of a photovoltaic‐integrated shunt active power filter (SAPF) to improve the power quality and to generate clean power. The system uses adaptive neuro‐fuzzy inference system (ANFIS)‐based maximum power point tracking and control of synchronous reference frame theory–based SAPF. Various control schemes are implemented in MATLAB and then validated in real‐time using FPGA‐based computation engine of OPAL‐RT 4510. Control techniques built around the artificial neural network, fuzzy logic control, and ANFIS are compared for balanced and unbalanced loads on parameters like total losses with/without compensation, voltage drop, power factor, and total harmonic distortion.