Grid integration of renewable energy sources: Challenges, issues and possible solutions

Anees, Ahmed Sharique

doi:10.1109/iicpe.2012.6450514

Cited by 118 publications

(34 citation statements)

References 17 publications

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“…The three different RES are connected to a common AC bus on to which varying loads are connected (Mohammed, 2006;Sharaf & El-Sayed, 2009). The power quality issues (Anees, 2012) like the system voltage and current regulation and harmonic reductions have been analyzed with the help of a STATCOM. Figure 11 shows the hybrid system proposed in this study.…”

Section: Proposed Integrated System and Simulation Resultsmentioning

confidence: 99%

Power quality analysis of hybrid renewable energy system

2015

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An hybrid renewable energy sources consisting of solar photovoltaic, wind energy system, and a microhydro system is proposed in this paper. This system is suitable for supplying electricity to isolated locations or remote villages far from the grid supply. The solar photovoltaic system is modeled with two power converters, the first one being a DC-DC converter along with an maximum power point tracking to achieve a regulated DC output voltage and the second one being a DC-AC converter to obtain AC output. The wind energy system is modeled with a wind-turbine prime mover with varying wind speed and fixed pitch angle to drive an self excited induction generator (SEIG). Owing to inherent drooping characteristics of the SEIG, a closed loop turbine input system is incorporated. The microhydro system is modeled with a constant input power to drive an SEIG. The three different sources are integrated through an AC bus and the proposed hybrid system is supplied to R, R-L, and induction motor loads. A static compensator is proposed to improve the load voltage and current profiles; it also mitigates the harmonic contents of the voltage and current. The static synchronous compensator is realized by means of a three-phase IGBT-based currentcontrolled voltage source inverter with a self-supporting DC bus. The complete system is modeled and simulated using Matlab/Simulink. The simulation results obtained illustrate the feasibility of the proposed system and are found to be satisfactory. a senior member of IEEE. His areas of interest are electrical machines, energy, distributed generation and power quality. PUBLIC INTEREST STATEMENTThis paper details the possible ways of integrating renewable energy sources which may be called a hybrid renewable energy system (HRES). The recent research in the field of HRES shows the possibility of integrating either photovoltaic (PV)-wind or PV-microhydro or wind-microhydro as a hybrid system. In this paper, the possibility of integrating three renewable energy sources namely, PV-windmicrohydro power generation system is presented. It aims at supplying electricity to remote villages which are far from the grid supply. Since power quality is a major issue in such a system, the same is analyzed. MATLAB/Simulink is used for modeling the system and studying various performance characteristics of the system under different electric loads. A static synchronous compensator (STATCOM) is incorporated to improve the voltage profile at the load end thereby achieving an improved power quality of the supply.

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Section: Proposed Integrated System and Simulation Resultsmentioning

confidence: 99%

Power quality analysis of hybrid renewable energy system

2015

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“…2 explains the concept of aggregation of distributed power generation through SPV. Here a number of power generation are taken that may be having different [17]. It is expected that the problem such as intermittency can be mitigated to a significant level by this approach.…”

Section: Aggregated Power Generationmentioning

confidence: 99%

Reduction of power fluctuation in grid connected SPV plant through aggregate distributed generation

Jamil

Anees

Subramaniam

et al. 2014

2014 6th IEEE Power India International Conference (PIICON)

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This paper aims to analyze the reduction of power fluctuation in the main grid by the generation of distributed solar power through several small micro grids connected into main grid. These fluctuations are mainly due to seasonal condition and cloud passing over the solar plant. There are several methods available to predict the power fluctuation due to seasonal variation but fluctuation due to cloud passing is very unpredictable. In this paper, a novel method is proposed where the power generated from SPV using several small micro grids which are geographically distributed in a 100 km radius are integrated. All of the five stations which are generating x amount of power individually are connected to the main grid at a common point, the collective fluctuation is monitored and compared for each of the sites against a system generating 5x power at a single location. It is found that the geographically distributed generation (neglecting transmission losses) produces less fluctuation in the grid. The proposed system gives less fluctuation because it is unlikely that all the sites have cloud cover at a particular time simultaneously. The advantage of the proposed system is that a lesser capacity battery bank will be required and the excess power generated during clear weather will be injected into the grid which will generate extra income. This is aptly suitable for the Indian power sector where grid is always operating at lower frequency.

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“…The continuous increasing demands for electric energy, combined with the environmental pollution caused by the conventional electric energy generating units, has led to a worldwide concern on the grid-connected photovoltaic system (GCPVS) [1], [2]. Nowadays a high penetration of singlephase transformerless inverter really raises the concern about photovoltaic (PV) integration of low voltage.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of Adaptive Controller for Single Phase Grid Connected Photovoltaic Inverter under Distorted Grid Conditions

Alswidi¹,

Al-Dobhani²,

Assad³

2017

ijacsa

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Abstract-This paper presents an adaptive controller for single-phase grid-connected photovoltaic inverter under abnormal grid conditions. The main problem associated with the controllers of the grid-connected inverter is that they are tuned for some assumed values of the electrical grid parameters. However, when the parameters, such as voltage and frequency are changed or the grid is subjected to uncertain distortion, these controllers unable to track those variations of the grid parameters and handle the output power within the allowable limit. To overcome such problem, a suitable control strategy is proposed, which is based on frequency adaptive current control and an accurate grid detection. For validity confirmation, a controlled 3KW system, with specific features was designed and simulated. The simulation results confirmed that the strategy is an effective way of control.

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Grid integration of renewable energy sources: Challenges, issues and possible solutions

Cited by 118 publications

References 17 publications

Power quality analysis of hybrid renewable energy system

Power quality analysis of hybrid renewable energy system

Reduction of power fluctuation in grid connected SPV plant through aggregate distributed generation

Design and Simulation of Adaptive Controller for Single Phase Grid Connected Photovoltaic Inverter under Distorted Grid Conditions

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