Control scheme for grid‐tied distributed generation inverter under unbalanced and distorted utility conditions with power quality ancillary services

Chilipi, Rajasekharareddy; Sayari, Naji Al; Hosani, Khalifa Al; Beig, Abdul R.

doi:10.1049/iet-rpg.2015.0095

Cited by 58 publications

(33 citation statements)

References 21 publications

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“…These controllers are considered as the most fundamental controllers in the industry for controlling linear systems and considered as the base of control theory. Lot of work in literature is being done on these controllers [49][50][51][52][72][73][74][75][76][77][78]. The fundamental benefits of implementing these controllers are their ability to tune themselves according to the requirement of the plant and their simple structure.…”

Section: Classical Control Techniquesmentioning

confidence: 99%

Digital Control Techniques Based on Voltage Source Inverters in Renewable Energy Applications: A Review

et al. 2018

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Abstract:In the modern era, distributed generation is considered as an alternative source for power generation. Especially, need of the time is to provide the three-phase loads with smooth sinusoidal voltages having fixed frequency and amplitude. A common solution is the integration of power electronics converters in the systems for connecting distributed generation systems to the stand-alone loads. Thus, the presence of suitable control techniques, in the power electronic converters, for robust stability, abrupt response, optimal tracking ability and error eradication are inevitable. A comprehensive review based on design, analysis, validation of the most suitable digital control techniques and the options available for the researchers for improving the power quality is presented in this paper with their pros and cons. Comparisons based on the cost, schemes, performance, modulation techniques and coordinates system are also presented. Finally, the paper describes the performance evaluation of the control schemes on a voltage source inverter (VSI) and proposes the different aspects to be considered for selecting a power electronics inverter topology, reference frames, filters, as well as control strategy.

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Section: Classical Control Techniquesmentioning

confidence: 99%

Digital Control Techniques Based on Voltage Source Inverters in Renewable Energy Applications: A Review

et al. 2018

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“…Various control techniques have been used so far in this area to accomplish the compensation task, which comprises the instantaneous power theory (p-q) (Hachani et al, 2017), the synchronous reference frame (SRF) theory (Hoon et al, 2016), the discrete Fourier transform approach (Wang et al, 2016), and the deadbeat controller (Qi et al, 2017). However, adaptive filters (Chilipi et al, 2016) play an important role in compensating for the harmonics by injecting the required current to the power grid. Traditionally, a recursive least square (RLS) (Das et al, 2017) is employed, which offers improved performance, simplicity, robustness, and a lower computational burden.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Power Quality in a Three-Phase System Using an Adaline-Based Multilevel Inverter

Das

Ray²,

Sahoo

et al. 2020

Front. Energy Res.

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The existence of harmonics in the power distribution system (PDS) is treated as the most serious issue that affects its stability and reliability. The active power filter (APF) therefore plays a vital role in PDS to compensate for the harmonics for the improvement of the power quality (PQ) and to keep the total harmonic distortion (THD) below 5% as per IEEE-519. In this work, a three-phase four-wire (3P-4W) multi-level inverter (MLI)-based APF is proposed to overcome the shoot-through effect (STE) and reduce the distortions in the supply current. The control of the voltage source inverter (VSI) is achieved using an Adaline-based LMS (A-LMS) algorithm with a hysteresis current controller. The proposed filter that uses the ALMS technique is compared with the conventional recursive least square (RLS) algorithm. The ALMS approach is mainly operated for maintaining the dc link voltage of MLI, which follows the principle of capacitor energy and reduces the total harmonic distortion (THD) under different load variations. The performance of MLI under different load conditions is designed, developed, and validated by using a MATLAB/Simulink environment, and the preeminent features are established.

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“…Sadeghkhani et al [15] have used a DSOGI-based PLL control algorithm to extract symmetrical components of the grid voltages along with eliminating the second-order frequency component from dq-components of voltages. In the available literature [16,17], three advanced control algorithms, namely, decoupled double SRF-PLL (DDSRF-PLL), dual second-order generalised integrator-PLL (DSOGI-PLL), and three-phase EPLL (3p-EPLL) have been discussed. In the available literature, a third-order sinusoidal integrator-based control algorithm has been proposed for extracting FSFC for synchronisation of distributive generating system.…”

Section: Introductionmentioning

confidence: 99%

Improved phase‐locked loop‐based control for grid‐integrated PV system

Pal

Kumar

Singh

et al. 2019

IET Renewable Power Generation

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This work presents an improved phase-locked loop (IPLL)-based control for grid-integrated photovoltaic (PV) system (GIPVS). It is used to extract amplitude, frequency, and phase angle of distorted load currents to control PV-grid-interfaced voltage source converter (VSC). The VSC controls active and reactive powers at unbalances and distortions in the grid voltages. The control algorithm of VSC includes power feed-forward term, DC-link voltage, and grid voltages. The feed-forward term improves the dynamic performance of a GIPVS and enhances the utilisation of VSC. Three-phase IPLLs extract the inphase components of three-phase load currents at utility frequency. Further, these in-phase components of load currents are used for estimation of reference-grid currents. The proposed IPLL-based control algorithm offers good dynamic response even under unbalanced load condition. The efficient working of IPLL-based control algorithm is realised by extracting maximum power from PV-grid system and through its power-quality improvement. The perturb and observe (P & O) control algorithm is used for optimum utilisation of a PV array. A developed prototype of PV-grid system is used to implement an IPLL-based control algorithm under different operating conditions.

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Control scheme for grid‐tied distributed generation inverter under unbalanced and distorted utility conditions with power quality ancillary services

Cited by 58 publications

References 21 publications

Digital Control Techniques Based on Voltage Source Inverters in Renewable Energy Applications: A Review

Digital Control Techniques Based on Voltage Source Inverters in Renewable Energy Applications: A Review

Improvement of Power Quality in a Three-Phase System Using an Adaline-Based Multilevel Inverter

Improved phase‐locked loop‐based control for grid‐integrated PV system

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