Low-Cost Implementation of PV-STATCOM for Non-Linear Load Using STM32F407VG Controller

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2021 by IJETT Journal
Volume-69 Issue-9
Year of Publication : 2021
Authors : Nimita Gajjar, Tejas Zaveri, Naimish Zaveri
  10.14445/22315381/IJETT-V69I9P225

MLA 

MLA Style: Nimita Gajjar, Tejas Zaveri, Naimish Zaveri  "Low-Cost Implementation of PV-STATCOM for Non-Linear Load Using STM32F407VG Controller" International Journal of Engineering Trends and Technology 69.9(2021):212-219. 

APA Style: Nimita Gajjar, Tejas Zaveri, Naimish Zaveri. Low-Cost Implementation of PV-STATCOM for Non-Linear Load Using STM32F407VG Controller International Journal of Engineering Trends and Technology, 69(9),212-219.

Abstract
This paper presents the low-cost hardware implementation of solar inverter-based STATCOM for correction of power factor in case of non-linear industrial load. It explores the multifunctionality of PV inverters to not only deliver real power but to deal with other power quality issues like poor power factor due to non-linear load. This multifunctionality is achieved in the daytime with the capacity of the inverter remaining after supplying PV power to the load/grid. At night time, the full capacity of the inverter is available for grid support functionalities. In the developed prototype, the decoupled control techniques were implemented using the STM32 microcontroller. A modified SOGI based estimator is used to find grid voltage angle as well as the reactive component of the load current. Experiments are done for various conditions of load and variable solar insolation, and results are discussed to validate the proposed system.

Reference
[1] Ministry of New and Renewable Energy-India website), Available from https://mnre.gov.in/solar , (2021).
[2] R. K. Varma, V. Khadkikar, and R. Seethapathy, Nighttime application of pv solar farm as statcom to regulate grid voltage, IEEE transactions on energy conversion, 24(4) (2009) 983–985.
[3] B. Singh, P. Jayaprakash, D. P. Kothari, A. Chandra, and K. Al Haddad, “Comprehensive study of dstatcom configurations, IEEE Transactions on Industrial Informatics,10(2) (2014) 854–870.
[4] Q.-N. Trinh and H.-H. Lee, An enhanced grid current compensator for a grid-connected distributed generation under nonlinear loads and grid voltage distortions, IEEE Transactions on Industrial Electronics, 61(12) (2014) 6528–6537.
[5] S. Mishra and P. K. Ray, Power quality improvement using photovoltaic fed dstatcom based on Jaya optimization, IEEE Transactions on Sustainable Energy, 7(4) (2016) 1672–1680.
[6] C. Kumar and M. K. Mishra, A multifunctional dstatcom is operating under stiff source, IEEE Transactions on Industrial Electronics, 61(7) (2013) 3131–3136.
[7] C. Kumar and M. K. Mishra, Operation and control of an improved performance interactive dstatcom, IEEE transactions on industrial electronics, 62(10) (2015) 6024–6034.
[8] R. K. Varma and E. M. Siavashi, Enhancement of solar farm connectivity with smart pv inverter pv-statcom, IEEE Transactions on Sustainable Energy, 10(3) (2018) 1161–1171.
[9] R. K. Varma and E. M. Siavashi, Pv-statcom: A new smart inverter for voltage control in distribution systems, IEEE Transactions on Sustainable Energy, 9(4) (2018) 1681–1691.
[10] R. K. Agarwal, I. Hussain, and B. Singh, Implementation of llmf control algorithm for a three-phase grid-tied spv-dstatcom system, IEEE Transactions on Industrial Electronics, 64(9) (2016) 7414–7424.
[11] B. Singh, C. Jain, and S. Goel, Ilst control algorithm of single-stage dual purpose grid connected solar pv system, IEEE Transactions on Power Electronics, 29(10) (2013) 5347–5357.
[12] S. K. Sahoo, S. Kumar, and B. Singh, Vssmlms-based control of multifunctional pv-dstatcom system in the distribution network, IET Generation, Transmission & Distribution, 14(11) (2020) 2100– 2110.
[13] N. Femia, G. Petrone, G. Spagnuolo, and M. Vitelli, A technique for improving p&o mppt performances of double-stage grid-connected photovoltaic systems, IEEE transactions on industrial electronics, 56(11) (2009) 4473–4482.
[14] M. A. G. De Brito, L. Galotto, L. P. Sampaio, G. d. A. e Melo, and C. A. Canesin, Evaluation of the main mppt techniques for photovoltaic applications, IEEE transactions on industrial electronics, 60(3) (2012) 1156–1167.
[15] Q. Mei, M. Shan, L. Liu, and J. M. Guerrero, A novel improved variable step-size incremental-resistance mppt method for pv systems, IEEE transactions on industrial electronics, 58(6) (2010) 2427–2434.
[16] Sindhuja, P., and B. Lalitha., Reactive Power Compensation for Grid Connected Distribution System using DSTATCOM for Different Loads, International Journal of Engineering Trends and Technology (IJETT), 40(5) (2016) 257-264.
[17] Rakhi Deshmukh, Rahul Rahangdale, M.K. Pradhan., A Power Quality Improvement By using STATCOM and Wind Turbine, International Journal of Engineering Trends and Technology, 32(6) (2016) 260-265.
[18] K. Mozdzynski, K. Rafał, and M. Bobrowska-Rafał., Application of the second order generalized integrator in digital control systems, Archives of Electrical Engineering, 63(3) (2014).
[19] R. Yates and R. Lyons, Dc blocker algorithms [dsp tips & tricks], IEEE Signal Processing Magazine, 25(2) (2008) 132–134.
[20] D. Kalyanraj and S. L. Prakash, Design and digital implementation of constant frequency hysteresis current controller for three-phase voltage source inverter using tms320f2812, International Journal of Emerging Electric Power Systems, 15(1) (2014) 13–23.

Keywords
DSTATCOM, decoupled control, Distributed Generation, Photovoltaic system, Smart Inverter, Unity Power Factor operation, Voltage Control.