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Design and real-time validation of PI and Fuzzy Logic tuned photovoltaic integrated DSTATCOM to improve power quality

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Abstract

Power loss and malfunctioning of equipment due to current and voltage harmonics produced by nonlinear loads are major concerns for both power suppliers and consumers. This paper employs DSTATCOM to mitigate these harmonic distortions in distribution systems. DSTATCOM is a current controlled voltage source PWM converter with passive components. It supplies compensating current that eliminates current harmonics and provides reactive power compensation thereby providing a smooth source current. The performance of DSTATCOM is controlled using proportional integral and fuzzy logic–based control (FLC) schemes to improve power quality at dynamic loading. As the penetration of photovoltaic (PV) systems in energy production is significant, the power quality issues for PV-integrated systems have also been investigated. The maximum power point for a PV array is tracked using perturb and observe and FLC methods. The complete system is simulated in MATLAB and extensively investigated for a large range of balanced and unbalanced nonlinear load conditions. The simulation results are validated in real time through the hardware in loop (HIL) test bench using Opal-RT controller. The proposed PV-integrated DSTATCOM with FLC yields better performance in terms of DC link voltage settling time, total harmonics distortion, and smooth source current as compared to other schemes.

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Data availability

The dataset used and analyzed during the current study are available from the corresponding author on reasonable request.

Abbreviations

I qs :

Load current of Quasi-square waveform

I 0 :

Line current

I qs1 :

Fundamental component of load current

I DSTATCOM :

Current rating of DSTATCOM

V P :

Phase voltage

V DC :

DC link voltage

m a :

Modulation index

C DC :

DC link capacitance

L PV :

Boost converter inductance

I La,I Lb, I Lc :

Load current

V La,V Lb,V Lc :

Grid voltage

I d & I q :

dq0 frame current components

I crp :

Ripple current

ΔE :

Change in stored energy

V d :

Voltage overshoot

\({I}_{sa}^{\ast }\), \({I}_{sb}^{\ast }\) and \({I}_{sc}^{\ast }\) :

Park’s transform current

I spp :

Reference current

\({V}_{DC}^{\ast }\) :

Reference DC link voltage

V DCe :

Error in DC link voltage

K P :

Proportional constant

K I :

Integral constant

E r :

Error signal

ΔE r :

Variation in error signal

μ(X):

Membership function

I c :

Compensating current

I s :

Source current

I l :

Load current

V s :

Source voltage

L S :

Interfacing inductance

f S :

Switching frequency

V IGBT :

Voltage rating of IGBT

I IGBT :

Current rating of IGBT

V PV :

PV voltage

C PV :

Boost converter capacitance

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Acknowledgements

The authors would like to acknowledge Prof SK Choudhary, Department of Humanities and Social Sciences, BITS, Pilani–Pilani Campus, for sparing his valuable time in improving the language of the manuscript.

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Authors and Affiliations

  1. Department of Electrical and Electronics Engineering, JK Lakshmipat University, Jaipur, India

    Hanuman Prasad Agrawal

  2. Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science, Pilani, India

    Hari Om Bansal

  3. Department of Electrical Engineering, Dr. B R Ambedkr National Institute of Technology, Jalandhar, India

    Ravinder Kumar

  4. Department of Electrical and Electronics Engineering, Jagannath University, Jaipur, India

    Yadvendra Singh Sisodia

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  1. Hanuman Prasad Agrawal
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Contributions

HPA has run the simulations and is the major contributor in writing the manuscript. HOB conceptualized and formulated the problem addressed in the study. RK analyzed the data and wrote the results. YSS contributed to the conceptualization process and formal analysis of the results. All authors read and approved the final manuscript.

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Correspondence to Hanuman Prasad Agrawal.

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Agrawal, H.P., Bansal, H.O., Kumar, R. et al. Design and real-time validation of PI and Fuzzy Logic tuned photovoltaic integrated DSTATCOM to improve power quality. Environ Sci Pollut Res 29, 90158–90177 (2022). https://doi.org/10.1007/s11356-022-21910-7

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