A Comprehensive Review of DC–DC Converter Topologies and Modulation Strategies with Recent Advances in Solar Photovoltaic Systems by Kummara Venkat Guru Raghavendra ,Kamran Zeb ,Anand Muthusamy ,T.N.V.Krishna,S.V.S.V Prabhudeva Kumar,Do-Hyun Kim,Min-Soo Kim,Hwan-Gyu Cho and Hee-Je Kim

 

A Comprehensive Review of DC–DC Converter Topologies and Modulation Strategies with Recent Advances in Solar Photovoltaic Systems by Kummara Venkat Guru Raghavendra ,Kamran Zeb ,Anand Muthusamy ,T.N.V.Krishna,S.V.S.V Prabhudeva Kumar,Do-Hyun Kim,Min-Soo Kim,Hwan-Gyu Cho and Hee-Je Kim 

 School of Electrical Engineering, Pusan National University, Korea School of Electrical Engineering and Computer Science, National University of Sciences and Technology, Pakistan 

 Abstract

 Renewable Energy Sources (RES) showed enormous growth in the last few years. In comparison with the other RES, solar power has become the most feasible source because of its unique properties such as clean, noiseless, eco-friendly nature, etc. During the extraction of electric power, the DC–DC converters were given the prominent interest because of their extensive use in various applications. Photovoltaic (PV) systems generally suffer from less energy conversion efficiency along with improper stability and intermittent properties. Hence, there is a necessity of the Maximum power point tracking (MPPT) algorithm to ensure the maximum power available that can be harnessed from the solar PV. In this paper, the most important features of the DC/DC converters along with the MPPT techniques are reviewed and analyzed. A detailed comprehensive analysis is made on different converter topologies of both non-isolated and isolated DC/DC converters. Then, the modulation strategies, comparative performance evaluation are addressed systematically. At the end, recent advances and future trends are described briefly and considered for the next-generation converter’s design and applications. This review work will provide a useful structure and reference point on the DC/DC converters for researchers and designers working in the field of solar PV applications.

View Full-Text: https://www.mdpi.com/2079-9292/9/1/31

Keywords: DC/DC converter; control; MPPT; photovoltaic (PV) systems; modulation strategies

Topologies and control strategies of multi-functional grid-connected inverters for power quality enhancement:A comprehensive review Zheng Zengn, HuanYang , Rongxiang Zhao , Chong Cheng College of Electrical Engineering,Zhejiang University,China

 

Topologies and controlstrategies of multi-functional grid-connected inverters for power quality enhancement:Acomprehensive review Zheng Zengn, HuanYang , RongxiangZhao , ChongCheng College ofElectrical Engineering,Zhejiang University,China

 LINK:https://www.academia.edu/5616217/Topologies_and_control_strategies_of_multi_functional_grid_connected_inverters

Investigation of single-stage transformerless buck–boost microinverters Derick Mathew, Rani Chinnappa Naidu Electrical Engineering, VIT University, Vellore, Tamil Nadu, India

Investigation of single-stage transformerless buck–boost microinverters Derick Mathew, Rani Chinnappa Naidu Electrical Engineering, VIT University, Vellore, Tamil Nadu, India

 Abstract: 

conventional microinverters with transformers and multiple-stage system increases the cost, weight and size, lowering the effectiveness and power density of PV system. It is therefore desirable to prevent using these methods for a microinverter. However, extra care must be taken to prevent component stress, excess switching and conduction losses, ground leakage currents and harmonics. Several transformerless buck–boost inverters have lately been suggested to address various issues. Due to the availability of a number of buck–boost inverter-topology for the solar PV system, it is often difficult to identify when to choose the appropriate topology. Therefore, in order to present a clear view of the advancement of transformerless buck–boost inverters for next-generation grid-integrated PV systems, this article seeks to explore multiple buck–boost topologies with an extensive analytical comparison. Computer simulations for the 70 W system have been conducted in PLECS software to strengthen the results and comparisons, as well as to provide more insight into the features of the distinct topologies for the building-integrated photovoltaic implementation. At the later part, voltage and current stress in each component, efficiency and total harmonic distortion of the system are provided with a general summary, as well as, a technology roadmap.

LINK WEB:

https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/iet-pel.2019.1237

Design and Implementation of a Low-cost Back-to-back Dynamic Voltage Restorer -Authors Chao-Tsung Ma and Yi-Hung Tian -Department of EE, CEECS, National United University, Taiwan

 

Design and Implementation of a Low-cost Back-to-back Dynamic Voltage Restorer Chao-Tsung Ma  and Yi-Hung Tian 

ABSTRACT

 The dynamic voltage restorer (DVR) is a power converter-based device widely used in power distribution systems to improve voltage quality. A conventional DVR includes an energy storage device (ESD) to provide the required power for a limited duration of voltage sag. However, the employment of ESD increases the DVR costs and limits its functionality. This research paper investigated a single-phase back-to-back DVR with simulation and small-scale hardware implementation. The proposed DVR includes two inverters connected in series and parallel with the distribution system, respectively, to enable bidirectional power flow. The advantage of this topology is its ability to compensate for longer voltage sags and swells, thus achieving a low-cost design. Using digital control scheme, the proposed DVR is able to perform multiple control functions simultaneously, including voltage swell/sag compensation, power factor correction (PFC), and harmonic current compensation. Based on the aforesaid, this paper reviews the related literature on DVR and then introduces the working principles of DVR and the proposed control scheme. Also, two sets of simulation studies and hardware tests were performed to do so. The typical results derived from the software simulation and small-scale hardware implementation are provided to verify the effectiveness of the proposed DVR and the related control scheme. Keywords: Dynamic Voltage Restorer (DVR); power quality control; back-to-back converter; digital controller.

LINK

https://jit.yuntech.edu.tw/2020/JIT-V02N02-08.pdf

Power Quality Renewable Energy Effective Use of Grid by Wind Intelligent Technique-Dr.P.Selvam, M.P.Sakthivel Professor & Head, Dept. of Electrical & Electronics Engineering, Vinayaka Mission's Kirupananda Variyar Engineering College, Salem, Tamil Nadu, India

 

Power Quality Renewable Energy Effective Use of Grid by Wind Intelligent Technique Dr.P.Selvam, M.P.Sakthivel Professor & Head, Dept. of Electrical & Electronics Engineering, Vinayaka Mission's Kirupananda Variyar Engineering College, Salem, Tamil Nadu, India 

Dept. of Electrical & Electronics Engineering, Vinayaka Mission's Kirupananda Variyar Engineering College, Salem, Tamil Nadu, India

 ABSTRACT: This present scenario we are facing a large amount of power crisis in our country to counteract this problem we are going for renewable energy, even though we are generating a power from solar and wind now no technique has been developed for efficient battery charging in PV/Grid connected solar UPS. This project deals with intelligent battery charging technique using SOC(State Of Charge) estimation so as to enhance the effective power utilization of solar panels and also the battery life. KEYWORDS: Effective battery charging, State of charge (SOC)

LINK: http://ijircce.com/admin/main/storage/app/pdf/6yYXHnZpbLo9pD2Ez15WidEc6hpklfNfY6FPERcJ.pdf