Solar PV integrated dynamic voltage restorer for enhancing the power quality under distorted grid conditions

Prasad, Devalraju; Dhanamjayulu, C.

doi:10.1016/j.epsr.2022.108746

Cited by 25 publications

(18 citation statements)

References 24 publications

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“…The algorithm cannot detect if power changes due to voltage perturbation or solar radiation. An EINC MPPT is employed to address these issues in fast‐changing situations, and the EINC algorithm must behave differently from the previous algorithm in Prasad and Dhanamjayulu 35 and Belkaid et al 36 and Figure 3. An EINC algorithm flowchart illustrates this principle.…”

Section: Proposed Solar Pv‐integrated Sapfmentioning

confidence: 99%

Solar photovoltaic‐interfaced shunt active power filter implementation for power quality enhancement in grid‐connected systems

Boopathi

Indragandhi

2023

Circuit Theory & Apps

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SummaryThis paper proposes a synchronous reference frame (SRF) control with a photovoltaic (PV)‐based shunt active power filter (SAPF) that is utilized to mitigate harmonics impacted by fast‐growing nonlinear load (NL), including compensation of reactive power in distribution systems. The PV module is constructed with an enhanced incremental conductance (EINC) maximum power point tracking approach with an interconnected SAPF. It can support load reactive power demand, eliminating harmonics obtained by NL and the active power supported by the PV arrays. Traditional tuning PI controllers perform poorly under variable load conditions. An adaptive intelligent nonlinear controller capable of simultaneously addressing the impacts of variable load, NL generation of harmonic current, and reactive power demand. This research aims to improve power quality based on an adaptive neuro‐fuzzy inference system (ANFIS) to enhance PV‐SAPF dynamic performance and achieve optimized performance. This control technique reduces the percentage of total harmonic distortion (THD) of the source current below IEEE standards from generating an NL and balanced/unbalanced load condition and regulates the DC‐link voltage constant. Moreover, the presented SRF theory, solar PV, and step‐up converter are addressed. The proposed system control strategy is implemented in the MATLAB/Simulink platform and the Texas Instruments Cyclone IV EP4CE30F484 FPGA board to carry out the hardware implementations of the proposed PV‐SAPF system and validated experimentally.

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Section: Proposed Solar Pv‐integrated Sapfmentioning

confidence: 99%

Solar photovoltaic‐interfaced shunt active power filter implementation for power quality enhancement in grid‐connected systems

Boopathi

Indragandhi

2023

Circuit Theory & Apps

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“…e energy storage of intermittent renewable sources is an extensive area of research since energy storage is utilized in several applications in the grid, including energy shifting, electricity supply capability, supporting frequencies and voltages, and the management of electricity bills [90][91][92]. Energy storage technologies are pumped hydroelectric (PHS) [93], compressed air energy storage (CAES) [94], flywheel energy storage (FES) [95], battery energy storage (BES) [96], thermal storage [97], and hydrogen [98].…”

Section: Voltage Flicker/ Fluctuationmentioning

confidence: 99%

“…rotating DQ reference frame [90], and synchronously rotating frame (SRF) [89] are used. If there is no voltage disturbance, then the bypass switch is turned ON and DVR acts as the standby mode.…”

Section: Control Systems In Dvrmentioning

confidence: 99%

A Review of Control Techniques and Energy Storage for Inverter-Based Dynamic Voltage Restorer in Grid-Integrated Renewable Sources

Prasad

Dhanamjayulu

2022

Mathematical Problems in Engineering

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Power quality (PQ) is a key issue, particularly for technologically advanced process equipment, whose performance mainly depends on the quality of supply. Problems with PQ such as voltage swells/sags, interruptions, and harmonics are defined by any voltage, current, or frequency abnormalities causing damage or failure of the end-user equipment. Outages and interruptions lead to malfunctioning of end-user equipment or sensitive loads, such as diagnostic equipment in healthcare facilities, clinics, educational institutions, and detention centers, while further increasing significant economic losses. Custom power devices (CPDs) are recommended for enhancing power quality, and the best and most economical solution is considered to be the dynamic voltage restorer (DVR). Several methods are suggested to improve the PQ by using the dynamic voltage restorer; among them, most encouraging ways are to use a multilevel inverter (MLI) in the dynamic voltage restorer. This article combines the latest work of the literature, as well as a detailed discussion on PQ issues of the grid-integrated renewable energy sources (RESs), DVR principle with its operating procedures, system components, energy storage-based DVR topologies, DVR control unit, and DVR power converter-based topologies. In addition, synthesis of energy storage, control strategies, and multilevel inverters for DVR. This review benefits those interested in investigating DVR as a relevant and comprehensive reference.

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“…RES introduce power quality issues to the grid. PV‐integrated DVR provides a better solution for the power quality issues raised by the integration of RES with the grid 14 …”

Section: Introductionmentioning

confidence: 99%

“…PV-integrated DVR provides a better solution for the power quality issues raised by the integration of RES with the grid. 14 The conventional DVR, which has a topology that is connected in series, is the more cost-effective alternative when it comes to compensating for fluctuations in dynamic voltage. The fundamental idea behind the DVR is to inject a voltage with the appropriate magnitude and phase in series with a distribution feeder in order to keep the load voltage at the right amplitude and waveform.…”

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confidence: 99%

A novel isolated multi‐port interleaved flyback converter operated TPSL‐DVR for smallscale distribution system

2023

Circuit Theory & Apps

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SummaryThis study describes a three‐phase six‐level (TPSL) inverter‐based dynamic voltage restorer (DVR) that employs a newly designed isolated multi‐port interleaved flyback converter (IMPIFC). A conventional DVR needs a big and heavy series transformer even for a three‐phase low‐voltage system, which is rated up to 400 V. Power electronic engineers have developed high‐frequency isolated DC–DC converters as a result of the introduction of advanced semiconductor devices and magnetic cores. Control and performance of a low‐voltage DVR utilizing a high‐frequency isolated DC–DC converter are discussed. In the proposed IMPIFC, the high‐frequency (25 kHz) transformer, which is smaller in size than the line‐frequency transformer, is utilized to reduce the size and to integrate multiple energy sources together. In addition, the introduction of a TPSL inverter into the configuration of DVR considerably reduces the injection of harmonic components into the distribution network. The proposed structure of DVR is named as “TPSL‐DVR.” The experimental findings of a three‐phase, three‐wire, 400 V, 50 Hz, 2kW laboratory system validate the boosting ability, feasibility, and efficiency of the system layout.

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Solar PV integrated dynamic voltage restorer for enhancing the power quality under distorted grid conditions

Cited by 25 publications

References 24 publications

Solar photovoltaic‐interfaced shunt active power filter implementation for power quality enhancement in grid‐connected systems

Solar photovoltaic‐interfaced shunt active power filter implementation for power quality enhancement in grid‐connected systems

A Review of Control Techniques and Energy Storage for Inverter-Based Dynamic Voltage Restorer in Grid-Integrated Renewable Sources

A novel isolated multi‐port interleaved flyback converter operated TPSL‐DVR for smallscale distribution system

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