PV integrated UPQC for sensitive Load

Dheeban, S S; Selvan, N.B. Muthu

doi:10.1109/ic-etite47903.2020.330

Cited by 15 publications

(7 citation statements)

References 9 publications

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“…The series APF should be able to detect voltage sags/swells, generate a voltage reference, and define a compensation voltage injection strategy [16,23]. The shunt APF should be able to control the DC link voltage, extract harmonics, generate reference current and gate signals for current compensation, and calculate reactive power [24].…”

Section: Upqcmentioning

confidence: 99%

“…A similar solution is presented in [24] for controlling a sensitive load in the UPQC with a PV system. The PV is coupled with the MPPT control algorithm, and the step-up converter is designed to supply energy to the DC link.…”

Section: Link Voltage Stabilization/controlmentioning

confidence: 99%

“…In the articles selected for this review, in order to mitigate changes in the supply voltage and improve the power quality in the distribution network, research in many works focuses on reducing the Total Harmonic Distortion (THD) factor [16,[23][24][25][26]29,30,32,33,[45][46][47][48]. In the presented results from simulations and/or real experiments, the authors succeed in significantly reducing the THD value of voltage and current by using their proposed (new or modified) UPQC topology [16,[23][24][25][26]32,33,46,48] or control method [29,30,45,47].…”

Section: The Series Apfmentioning

confidence: 99%

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A Review on AC Voltage Variation Compensators in Low Voltage Distribution Network

Sztajmec,

Szcześniak

2023

Energies

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Power quality is one of the most important aspects of the power system, especially in the distribution system. This system can be affected by such disturbances as short-term voltage sags/swells, long-term voltage increases/decreases over the normative limits, harmonic distortion, interruptions, etc. Maintaining the electricity quality parameters in accordance with the applicable standards in the power distribution system will require the use of additional devices. The scientific literature on the subject indicates a very wide range of different topologies of AC voltage compensators. In this paper, different power electronics-based AC voltage compensator topologies are reviewed that are typically used with distribution energy systems. A summary of the properties and functionalities of the selected topologies has been presented. This review focuses mainly on the different topologies of the Unified Power Quality Controllers (UPQC) and Hybrid Transformers (HT). This review is divided into several sections. The first section presents the topologies used in UPQC and HT. The second section discusses selected control methods for these systems. The third section presents the basic properties of the systems related to compensating changes in the supply voltage and improvement of power quality. The fourth section presents the use of UPQC and HT systems. Finally, a summary and conclusions are presented.

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Section: Upqcmentioning

confidence: 99%

Section: Link Voltage Stabilization/controlmentioning

confidence: 99%

Section: The Series Apfmentioning

confidence: 99%

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A Review on AC Voltage Variation Compensators in Low Voltage Distribution Network

Sztajmec,

Szcześniak

2023

Energies

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“…The shunt APF control strategy adopted to compensate harmonic currents is the synchronous reference frame detection method. The principle of this technique is described below [33,34]. The three-phase load currents i La , i Lb and i Lc are transformed from three phase (abc) reference frame to two phase's (α-β) stationary reference frame currents i α and i β using [18,35]:…”

Section: Shunt Apfmentioning

confidence: 99%

Performance Analysis of Universal Power Quality Conditioner Systems Based on Seven-level NPC Inverter Using PD-SPWM with Fuzzy Control Scheme

Salim¹

2022

Period. Polytech. Elec. Eng. Comp. Sci.

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This paper presents novel Unified Power Quality Conditioner (UPQC) system based on seven-level Neutral Point Clamped (NPC) inverter using combined PD-SPWM and fuzzy control scheme. The proposed UPQC is adopted to mitigate source current harmonics and compensate all voltage disturbances simultaneously. It is designed by the combination of series and shunt Active Filters (AFs) connected by a common DC link capacitor. The DC voltage at common DC bus is maintained constant using proportional integral voltage controller. The Synchronous Reference Frame (SRF) method is used to get the shunt APF reference signals and the power reactive theory (P-Q theory) for the series APF. Conventional control schemes require complex calculations, the use of intelligent systems help to reduce the control system size and the operation complexity. The shunt and series Active Power Filter (APF) reference signals derived from the control algorithm are injected in Fuzzy intelligent controllers to generate switching signals. The functionality of proposed UPQC system and its control system is evaluated using Matlab-Simulink software and SimPowerSystem Toolbox under various operation conditions in cases of most common power quality problems such as voltage sag, voltage swell, current harmonic compensation of nonlinear loads and unbalanced load. The simulation results show UPQC performances to improve the power quality in steady and transient conditions operation at the point of common coupling on power distribution under unbalanced and distorted voltage conditions.

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“…the clearance, the voltage at the terminal of the capacitor moves away from its reference disrupting stability. Integration of PV solar power system with UPQC forming UPQC PV system to make intermediate capacitor voltage stable and eliminate DC bus voltage variations during operation and in presence of disturbances (voltage dip or harmonic) [6]- [8]. The work presents a photovoltaic system connected to a UPQC connected to the PCC connection point of the grid supplying a non-linear load.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy logic controller of photovoltaic panel-unified power quality conditioner with voltage compensation and stability

Tounsi

Bouziane

Benaired

et al. 2023

IJPEDS

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<span lang="EN-US">The intensive use of non-linear loads is further contributing in the increase of power quality problems. They cause voltage distortions and current harmonics in an electrical distribution network. To minimize these problems, the unified power quality conditioner (UPQC) is used. The intermediate circuit voltage of this filter can deviate from its source during a transient event during a harmonic disturbance in voltage (voltage dip) or in current during the connection and disconnection of polluting loads. In a particular point in operating time, the stabilization of dc-bus and the compensation ability is necessary to maintain around its reference. The combination of a UPQC conditioner with a photovoltaic (PV) system connected to the intermediate element of the two converters of the DC bus (DC Link) is the adequate solution. The photovoltaic (PV) system is fitted with a fuzzy MPPT controller regulated by an algorithm (P and O) to control a boost converter. This converter is controlled by fuzzy logic related to the capacitor terminal of UPQC. The simulation results show that the UPQC conditioner based on the proposed photovoltaic system can be used for voltage disturbance compensation and the protection of non-linear loads connected to a distribution network.</span>

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PV integrated UPQC for sensitive Load

Cited by 15 publications

References 9 publications

A Review on AC Voltage Variation Compensators in Low Voltage Distribution Network

A Review on AC Voltage Variation Compensators in Low Voltage Distribution Network

Performance Analysis of Universal Power Quality Conditioner Systems Based on Seven-level NPC Inverter Using PD-SPWM with Fuzzy Control Scheme

Fuzzy logic controller of photovoltaic panel-unified power quality conditioner with voltage compensation and stability

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