Clustering Techniques in Load Profile Analysis for Distribution Stations

“…The load curve simulated in this study is a typical load curve, as the one presented in [19]. The load peak-value is 3 MW, the lowest value is 1.2 MW, whereas the average is 1.8 MW, over a 24-hour time interval presented in Fig.…”

Section: B Input Datamentioning

confidence: 96%

Optimal BESS Scheduling Strategy in Microgrids Based on Genetic Algorithms

Sidea

Toma

Sănduleac

et al. 2019

2019 IEEE Milan PowerTech

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Microgrids represent a promising concept able to solve problems specific to the traditional power systems, such as reliability and environmental issues, through a multi-sources coordination, including renewable energy integration and storage devices. In order to overcome the challenges of variation in load and generation, microgrids need efficiently operation and control. The paper proposes a scheduling framework for the microgrid operation considering renewable sources generation and battery energy storage system (BESS).

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“…557 increased from 5% up to 15% [15] simultaneously while solar PV penetration increases. In both cases, the small signal stability are analyzed in terms of eigenvalue, damped frequency, damping ratio and participation factor.…”

Section: Small Signal Stability Analysis Of Grid Connected Photovoltamentioning

confidence: 98%

Small Signal Stability Analysis of Grid Connected Photovoltaic

Aun

Marsadek

Ramasamy

2017

IJEECS

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This paper primarily focuses on the small signal stability analysis of a power system integrated with solar photovoltaics (PV) IntroductionThis paper represents small signal stability analysis of grid connected photovoltaic. The study involves the investigation in terms of eigenvalue analysis, damped frequency, damping ratio and participation factor for increased solar PV penetration and load variation into the grid. The results obtained would indicate the impact of solar PV penetration on the small signal stability of the power system.In this modern era, consumption and depletion of the world's fossil fuels have been expanding at an alarming exponential rate. The average 500 MW coal plant annually produces 3.7 million tons of cardon dioxide and other greenhouse gases [1]. This has caused a worrisome issue on greenhouse effects, global warming and even energy shortage in the coming years ahead.Therefore, there is an accelerating need to look for sustainable energy resources such as renewable energy to ensure a sustainable future [2]. Power systems that are dominated by synchronous generators are highly nonlinear and may experience a change in its dynamics and operational characteristics when connected to renewable energy resources. A study done in [3] shows that the integration of wind DFIG-based wind turbine generators into the power system grid does indeed impact the overall performance of the system in terms of small signal stability. Furthermore, another study [4] reaffirms that wind penetration to the grid causes small signal stability problems. The results in [4] showed a dynamically unstable behavior and altered local and inter-area mode shapes.On the contrary, a study was done on the small stability effects of distributed solar PV and DFIG based wind generation on the grid. It was found that the stability margin of the system is enhanced considerably [5]. Based on [6], penetration of DFIG wind turbines of almost 2MW in a wind farm shows an improvement in the of the power system stability when aggregated under certain conditions on a small grid. Based on [7], integration of wind energy into the power system improves stability by reducing the settling and overshoot time under the action of power system stabilizers. Renewable energy in the distribution level was studied in [8] and it is observed that the dynamics of the wind generator contribute significant system oscillations whereas solar PV generators actually enhances the small signal stability characteristics of the system whereby the eigen sensitivity decreases. As the renewable generation was increased, frequency of modes had an increase whereas the damping ratio was relatively constant. It was also found that there were no negative effects on the increase in renewable generation [9]. Furthermore, another study found that when a PSS equipped wind farm penetration increases, the damping ratio of inter-area modes improves [10]. Based on [11], solar PV and wind energy

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Clustering Techniques in Load Profile Analysis for Distribution Stations

Cited by 35 publications

References 4 publications

Morphometrical analysis of daily load graphs

Morphometrical analysis of daily load graphs

Optimal BESS Scheduling Strategy in Microgrids Based on Genetic Algorithms

Small Signal Stability Analysis of Grid Connected Photovoltaic

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