A Multifunctional GPV System Using Adaptive Observer Based Harmonic Cancellation Technique

Srinivas, Vedantham Lakshmi; Kumar, Shailendra; Singh, Bhim; Mishra, Sukumar

doi:10.1109/tie.2017.2733493

Cited by 30 publications

(9 citation statements)

References 17 publications

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“…noise cancellation [162], adaptive notch filter (ANF) [158], automatic synchronization control control [163], ANFIS based control [164], proportional resonant integral (PRI) controller [165], optimized reactive power compensation algorithm (RPCA) [166], adaptive observer-based harmonic cancellation technique [131], non-linear adaptive controller [167], anti-windup [168], damped second order generalized integrator (DSOGI) [169], [170], decoupled adaptive noise detection (DAND) [171], admittance LMS neural network [127], LMF algorithm [172], combined LMS-LMF [173], momentum least mean square (MLMS) [174], improved linear sinusoidal tracer (ILST) [175], [176] and modified RLS [129]. These algorithms for DFACTS devices have been established successfully and validated by hardware framework.…”

Section: Energy Use and Costmentioning

confidence: 99%

Comprehensive Review of Distributed FACTS Control Algorithms for Power Quality Enhancement in Utility Grid With Renewable Energy Penetration

Chawda

Shaik

Mahela³

et al. 2020

IEEE Access

123

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Rapid industrialization and its automation on the globe demands increased generation of electrical energy with more reliability and quality. Renewable energy (RE) sources are considered as a green form of energy and extensively used as an alternative source of energy for conventional energy sources to meet the increased demand for electrical power. However, these sources, when integrated to the utility grid, pose challenges in maintaining the power quality (PQ) and stability of the power system network. This is due to the unpredictable and variable nature of generation by these sources. The distributed flexible AC transmission system (DFACTS) devices such as distributed static compensator (DSTATCOM) and dynamic voltage restorer (DVR) play an active role in mitigating PQ issues associated with RE penetration. The performance of DFACTS devices is mostly dependent on the type of control algorithms employed for switching of these devices. This paper presents a comprehensive review of various conventional and adaptive algorithms used to control DFACTS devices for improvement of power quality in utility grids with RE penetration. This review intends to provide a summary of the design, experimental hardware, performance and feasibility aspects of these algorithms reported in the literature. More than 170 research publications are critically reviewed, classified, and listed for quick reference for the advantage of engineers and academician working in this area. INDEX TERMS Adaptive control algorithm, conventional control algorithm, DFACTS device, modern utility grid, power quality, renewable energy source. ABBREVIATIONS 3P4W Three phase four wire 3P3W Three phase three wire ABT Admittance based theory ACA Adaptive control algorithm ADALINE Adaptive linear element theory ALMS Adaptive least mean square ANF Adaptive notch filter ANFIS Adaptive neuro-fuzzy inference system ARLS Adaptive recursive least square CCA Conventional control algorithm DFACTS Distributed flexible AC transmission system DSP Digital signal processing DSSSC Distributed static synchronous series compensator DSSC Distributed static series compensator DSTATCOM Distributed static compensator DSVC Distributed static var compensator DTCSC Distributed thyristor controlled series

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Section: Energy Use and Costmentioning

confidence: 99%

Comprehensive Review of Distributed FACTS Control Algorithms for Power Quality Enhancement in Utility Grid With Renewable Energy Penetration

Chawda

Shaik

Mahela³

et al. 2020

IEEE Access

123

View full text Add to dashboard Cite

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“…Voltage distortion can be made worst by an excessive value of proportional gain (K P ) in the proportionalintegral (PI) controller which is likely to increase the ripple content of the waveform [16]. This resonant oscillation can be suppressed by implementing a grid voltage feed-forward (VFF) scheme in the controller [17][18][19][20]. However, such feed-forward schemes are shown to increase the low-order harmonic content of the inverter output current.…”

Section: Effect Of Resonance On Inverter Current Control Performancementioning

confidence: 99%

Adaptive control technique for suppression of resonance in grid‐connected PV inverters

Goh

Armstrong

Zahawi

2019

IET Power Electronics

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Grid operating conditions have a significant effect on the harmonic and resonant performance of grid-connected photovoltaic (PV) inverters and changes in grid impedance can cause a notable change in the resonant excitation between the PV inverter and the grid. This study proposes an adaptive control algorithm for grid-connected PV inverters to suppress the resonance condition excited by grid inductance variation, resulting from the dynamic changes in the operating conditions of the distribution network. The causes of resonance between grid-connected PV inverters and the distribution grid are discussed and the design of an active band-pass filter for capturing resonance is described. The proportional gain within the proportionalintegral controller is then adaptively controlled in real time to compensate for changes in the grid impedance and suppress resonant excitation while maintaining excellent low-order harmonic performance compared with alternative fixed gain controller techniques, particularly for systems with high values of grid inductance. The performance of the proposed controller is experimentally verified using a 240 V, 2 kVA single-phase grid-connected inverter.

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“…Alternative solutions have been proposed in [6]- [11], where grid tied inverters of PV systems are utilized not only for injecting properly the produced power into the grid, but also for providing ancillary services to benefit the grid operation. In [6] and [7], the inverters are also used to compensate the harmonic distortion imposed by the prosumer's non-linear loads. The inverter controller receives local measurements for the load currents and subsequently an adaptive observer and a triangular function are used respectively in order to analyze the distortion that needs to be compensated.…”

Section: Introductionmentioning

confidence: 99%

A Sensor-less Control Scheme for Grid Tied Inverters to Provide Phase Balancing Services to the Distribution Grid

Hadjidemetriou¹,

Charalambous²,

Zacharia³

et al. 2019

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

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This work proposes a sensor-less controller for grid tied photovoltaic (PV) inverters to enable phase balancing functionalities for compensating asymmetric loading conditions imposed by building loads in low voltage distribution grids. For enabling such an advanced functional operation by PV inverter, the first step is to enable the inverter to estimate the equivalent grid impedance. Then, the grid impedance is utilized to approximate the nearby load asymmetries without using any additional current sensors. Finally, advanced control schemes have been developed for PV inverters in order to enable the new phase balancing operation mode, where the inverter can compensate the asymmetric loading conditions of a distribution feeder. The effectiveness of the proposed method has been experimentally validated in a prototype where the grid tied PV inverter is able to compensate nearby load asymmetries and maintain a purely symmetrical interaction with the grid. Further, a simulation-based investigation in a realistic distribution feeder has been performed in order to highlight the benefits of the proposed approach regarding the power quality, the energy losses and the effective utilization of distribution grid capacity.

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A Multifunctional GPV System Using Adaptive Observer Based Harmonic Cancellation Technique

Cited by 30 publications

References 17 publications

Comprehensive Review of Distributed FACTS Control Algorithms for Power Quality Enhancement in Utility Grid With Renewable Energy Penetration

Comprehensive Review of Distributed FACTS Control Algorithms for Power Quality Enhancement in Utility Grid With Renewable Energy Penetration

Adaptive control technique for suppression of resonance in grid‐connected PV inverters

A Sensor-less Control Scheme for Grid Tied Inverters to Provide Phase Balancing Services to the Distribution Grid

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