final thesis submission presentation

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Presented By: Vikas Deep JuyalM. Tech. Final YearID No. 47046(Dr. Sudha Arora)AdvisorProfessor and Head -EED(Dr. Ravi Saxena)MemberAssociate Professor- EED(Prof. Abhishek Yadav)MemberAssociate Professor- EED




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IntroductionIndia- improved living standards, grown population :- increased energy demand.Economical and environmental impact of fossil fuels :- investigate sustainable solutions.Hence :- Focus on green and clean renewable energy.High voltage and high power grid connected systems are more efficient in the field of power electronics.Role of Renewable EnergySolve sustainability problems occurred with traditional fuels.Relatively more clean , pollution free and non- exhaustible.Effective in reducing carbon footprints.Reliable off-grid energy solution :- useful for remote locations.10/13/2016 11:24:14 AM3

Introduction (Cont..)Motivation and BackgroundIndia is ranked number one in terms of solar electricity production per watt installed, with an insolation of 1700 to 2500 kilowatt hours per kilowatt peak (kWh/KWp).Solar power in India is a fast developing industry, with a cumulative installed grid connected solar power capacity of 8,062 MW (8 GW) as of 31 July 2016.In January 2015 the Indian government significantly expanded its solar plans, targeting US$100 billion of investment and 100 GW of solar capacity (including 40 GW from rooftop solar) by 2022.10/13/2016 11:27:11 AM4

Introduction (Cont..)10/13/2016 11:27:14 AM5

Growth of Solar Power in India (

Introduction (Cont..)Solar Photovoltaic (SPV) SystemGenerates power from abundantly available sunlight, without any pollution.Made of PV arrays, which in turn are made up of panels which are made of PV cells.10/13/2016 11:27:57 AM6

Photovoltaic effect and PV system (

Introduction (Cont..)Classification of Photo-Voltaic (PV) systemPV system can be classified mainly into two categories: Grid-connected PV system and ,Standalone PV system. Grid-connected PV systemPreferred over standalone system due to efficient operation.The power electronic devices such as DC-DC converters and DC-AC inverters are used as an interface between them.Regardless of the interface configuration, the correct flow of energy from the generator to the grid or vice-versa must be guaranteed.

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Introduction (Cont..)Maximum Power Point Tracking (MPPT)The output characteristics of solar photovoltaic power generation system, appear to be non-linear due to various external conditions like light intensity, temperature and load characteristics and their dependent parameters.'Maximum Power Point' (MPP) must be tracked.ConvertersA DC to DC conversion stage is usually used to realize the maximum power point tracking (MPPT) for solar photovoltaic (SPV) applications, or bidirectional power flow control for energy storage application.The DC to AC conversion stage is used to control the power and current injected into utility grid.10/13/2016 11:29:16 AM8


Introduction (Cont..)Multi-Level Inverter (MLI)Achieve high power ratings than traditional two level inverter.Advantage of enabling the inter-connection of renewable energy sources like solar/wind, and hence improve the energy utilization of the system. Provide less distorted and nearly sinusoidal voltage.Types of Multi-Level Inverter (MLI)Multi-level inverters (MLIs) may be classified into three types.

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Introduction (Cont..)HarmonicsDue to wide range of semiconductor and other non-linear devices, power quality has to be deteriorated; this phenomenon is also termed as harmonic pollution. FiltersSince we know the order of characteristic harmonics, it can be eliminated using passive tuned filters, whereas for elimination of non-characteristic type, we need different filtering scheme. Active Power filters (APF)Wide applications in modern electrical distribution system now for eliminating the harmonics .Also be used to compensate the reactive power requirement of the non-linear loads. Shunt active power filters (SAPF) peruse better dynamic performance and need an accurate control algorithm so that they can provide robust performance.

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Objective of the ThesisThe objective of thesis can be distributed in following parts:To simulate a comparatively real and practical solar photo voltaic module using specified values provided by manufacturer and by calculating several parameters modified on ideal PV.To simulate MPPT algorithms along with boost converter & controller.To make simulation models of multi-level inverters including Diode-clamped and Cascaded H-bridge voltage source inverter (VSI) and their control mechanism.Design of a three phase non-linear load.Design of 3 phase-3 wire shunt active power filter using the principle of instantaneous active and reactive power (p-q) theory.Analysis of harmonics at point of common coupling.

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Literature Review(Sahoo 2016):- has conferred about the trends of increasing demand which is supposed to boost further worldwide following the present scenario. The paper reveals the detailed information about the capacity of solar energy in India, opportunity and challenges towards solar energy. Development in a specific program cant be done without government support which is generous towards solar energy. The paper also discussed the recent trends which have been followed in solar PV progress in India.(Dawn et al. 2016):- have presented a research paper on current advances of solar energy in India with a thorough study. The paper further discussed the global power scenario as well as of India including the solar resources that are present in India. The paper incorporated the government targets and detailed status of grid connected solar power projects, proposed solar parks, renewable energy certificate (REC) mechanism, energy prices with different energy sources, land requirement for solar power generation, season-wise direct normal irradiance (DNI), capacity utilization factor (CUF) of solar power plant, status of solar module manufacturing companies, energy storage for solar power in India.

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Literature Review (Cont..)(Eltawil and Zhao 2010):- have stated that intermitted sources like solar PV have created an increment in demand variability and hence present new aspects and challenges to extend the power system flexibility. He mainly focused and investigated on the importance, advantages of grid connected solar photovoltaic (SPV) and characterization of SPV generation. A brief introduction of grid-connected inverters and its controller with harmonic performance is also given.(Sawin et al. 2011):- have presented the Global Status Report 2011 in which he reported that traditional energy resources cause harmful pollution and also fossil fuels stores are decreasing with very fast rate which led towards increment in fuel cost; while renewable energy is abundant, permanent and free of cost. In past decades, there are several serious steps taken for conservation of fossil fuel and renewable energy. He also stated several advantages and adverse effect caused by solar photovoltaic.

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Literature Review (Cont..)(Obi and Bass 2016):-have presented a literature review of the trends and recent developments related to grid connected solar photovoltaic system (GCSPV). He also stated that grid connected solar photovoltaic system help to control greenhouse gas emission by balancing the power since grid-connected SPV has characteristics of bi-directional power flow. Since there are many topologies and configurations have been developed for Grid connected SPV systems, they must fulfill some standards which are required for safe operation and further proliferation of GCSPV. Advantages and challenges caused by GCSPV systems are also been described in detail. Solar PV has inherent nature depending on environmental factors therefore it is necessary to use some controllers like MPP tracker to extract maximum power from the solar PV and hence increase the system efficiency.

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Literature Review (Cont..)(Aggarwal, Kapoor, and Tripathi 1997):- have described about the interconnection of arrays in series or in parallel according to requirement of power. Series arrays are used to increase voltage where as parallel connections are used to increase the current ratings for identical power ratings. Practically it can be seen that solar photovoltaic arrays are never identical in nature due to several parameters of materials used (series and shunt resistance) for manufacturing the solar panel. Hence operation of PV may become complicated under different environmental conditions. The nature of dependence of photo-current on shunt/series resistance is different for each array arrangement.(Villalva, Gazoli, & Filho, 2009):- have described the modeling of small commercial PV besides of ideal PV first in Brazilian journal and after modifications , in IEEE journal. Arrays are made up of various solar panels arranged in several configurations. Paper also described the way of combining different panels and resulted modifications in basic equations of solar PV power generation.10/13/2016 11:37:33 AM15

Literature Review (Cont..)(Sera, Teodorescu, and Rodriguez 2007): -have presented the single diode model of PV cell with influence of series and parallel resistances with alternative formula for dark saturation curr