Small signal stability analysis of grid connected distributed PV and wind energy system

Krishan, Ram; Verma, Ashu; Prasad, B. Durga

doi:10.1109/34084poweri.2014.7117730

Cited by 7 publications

(3 citation statements)

References 15 publications

(14 reference statements)

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“…The main focus of this paper was to improve the stability for the lower frequency NS-A mode. Krishan et al (2014) investigated the penetration of distributed solar PV-and DFIG-based wind generation in power systems. Here, different modes such as local mode, interarea mode and critical mode of the system were allocated by using the grid-connected distributed PV generation.…”

Section: Related Workmentioning

confidence: 99%

An enhanced particle swarm optimization algorithm for improving the renewable energy penetration and small signal stability in power system

Renuka¹,

Reji²,

Sreedharan³

2018

Renewables

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In power systems, increasing the renewable energy penetration with small signal stability is one of the demanding and critical tasks in recent days. This research work aims to develop a multistage optimization technique, namely particle swarm optimization (PSO), for improving both the energy penetration and small signal stability. Here, the wind and solar power sources are considered, and its penetration is maximized by satisfying the grid requirements such as the bus voltage, line flows, and real and reactive power generation within the limit. This work includes two stages: in the first stage, PSO algorithm is implemented for maximizing the renewable energy penetration to the test systems. Then, in the second stage, the small signal stability of the systems is improved with maximum renewable energy penetration in which the best locations for connecting the wind farm are identified by using the calculation of wind farm placement index and solar generation is fixed by considering voltage and bus load absorption capability. During simulation, the proposed method is tested and validated by using IEEE 14-bus standard system, and the 220 kV Kerala (India) grid practical system with the solar and wind power. Moreover, various measures such as power generation, load and bus voltage are evaluated for two different case studies. In this evaluation, it is proved that the renewable energy sources are safely integrated with the power system with increased energy penetration and improved small signal stability. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Section: Related Workmentioning

confidence: 99%

An enhanced particle swarm optimization algorithm for improving the renewable energy penetration and small signal stability in power system

Renuka¹,

Reji²,

Sreedharan³

2018

Renewables

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show abstract

“…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.…”

Section: Introductionmentioning

confidence: 99%

“…Another study [5], small signal stability analysis for grid connected PV and wind energy was investigated via PSAT Toolbox of MATLAB under 3 cases which is the base case, load disturbance and effect of configuration changed. Results indicate that the stability margin improved.…”

Section: Introductionmentioning

confidence: 99%

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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Robust type-2 fuzzy fractional order PID controller for dynamic stability enhancement of power system having RES based microgrid penetration

Abdulkhader

Jacob

Mathew

2019

International Journal of Electrical Power & Energy Systems

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Small signal stability analysis of grid connected distributed PV and wind energy system

Cited by 7 publications

References 15 publications

An enhanced particle swarm optimization algorithm for improving the renewable energy penetration and small signal stability in power system

An enhanced particle swarm optimization algorithm for improving the renewable energy penetration and small signal stability in power system

Small Signal Stability Analysis of Grid Connected Photovoltaic

Robust type-2 fuzzy fractional order PID controller for dynamic stability enhancement of power system having RES based microgrid penetration

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