A novel voltage stability assessment tool to incorporate wind variability

Vijayan, P.; Sarkar, S.; Ajjarapu, Venkataramana

doi:10.1109/pes.2009.5275176

Cited by 15 publications

(11 citation statements)

References 34 publications

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“…However, a basic assumption is that the generation is dispatchable. Since wind energy is not, a new approach has been proposed to assess the voltage stability of wind integrated systems 137 A considerable number of studies have been performed to investigate the impact of wind penetration on power oscillations. However, no clear and generalised conclusion can be drawn as to whether wind integration improves or decreases power oscillation damping.…”

Section: Voltage Stabilitymentioning

confidence: 99%

Technical Impacts of High Penetration Levels of Wind Power on Power System Stability

Flynn

Rather

Årdal

et al. 2019

Advances in Energy Systems

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With increasing penetrations of wind generation, based on power-electronic converters, power systems are transitioning away from well-understood synchronous generator based systems, with growing implications for their stability. Issues of concern will vary with system size, wind penetration level, geographical distribution and turbine type, network topology, electricity market structure, unit commitment procedures, and other factors. However, variable-speed wind turbines, both onshore and connected offshore through DC grids, offer many control opportunities to either replace or enhance existing capabilities. Achieving a complete understanding of future stability issues, and ensuring the effectiveness of new measures and policies, is an iterative procedure involving portfolio development and flexibility assessment, generation cost simulations, load flow and security analysis, in addition to the stability analysis itself, while being supported by field demonstrations and real-world model validation. Wind energy is being rapidly integrated into many power systems across the globe, with a total installed capacity of 370 GW, and with 51 GW added in 2014 alone 1. As the penetration of wind generation increases, the impact on power system dynamics is becoming increasingly apparent, and will become a more integral part of system planning and renewables integration studies 2. Historically, power systems have been based around large synchronous generators connected to a strongly meshed transmission network, with the dynamic characteristics of such systems being well understood. However, renewable generation, particularly in the form of wind and solar generation, is increasingly universally increased operational reserve requirement for wind power.

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Section: Voltage Stabilitymentioning

confidence: 99%

Technical Impacts of High Penetration Levels of Wind Power on Power System Stability

Flynn

Rather

Årdal

et al. 2019

Advances in Energy Systems

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“…It is simple and easy to implement, as it requires less parameters. Equations (19) and (20) describe the scaled WT model representation of WPP reactive power capability.…”

Section: Scaled Wt Modelmentioning

confidence: 99%

“…Londero et al [17] and Amarasekara et al [18] have considered WT capability curves to analyze the long-term voltage stability of a power system with wind power generation. Vijayan et al [19] have developed a voltage stability assessment method depicting that the inclusion of a WT capability curve can result in a larger power transfer margin of the system. Reactive power capability curves have also been applied for studies on ancillary services.…”

Section: Introductionmentioning

confidence: 99%

Reactive Power Capability Model of Wind Power Plant Using Aggregated Wind Power Collection System

et al. 2019

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This article presents the development of a reactive power capability model for a wind power plant (WPP) based on an aggregated wind power collection system. The voltage and active power dependent reactive power capability are thus calculated by using aggregated WPP collection system parameters and considering losses in the WPP collection system. The strength of this proposed reactive power capability model is that it not only requires less parameters and substantially less computational time compared to typical detailed models of WPPs, but it also provides an accurate estimation of the available reactive power. The proposed model is based on a set of analytical equations which represent converter voltage and current limitations. Aggregated impedance and susceptance of the WPP collection system are also included in the analytical equations, thereby incorporating losses in the collection system in the WPP reactive power capability calculation. The proposed WPP reactive power capability model is compared to available methodologies from literature and for different WPP topologies, namely, Horns Rev 2 WPP and Burbo Bank WPP. Performance of the proposed model is assessed and discussed by means of simulations of various case studies demonstrating that the error between the calculated reactive power using the proposed model and the detailed model is below 4% as compared to an 11% error in the available method from literature. The efficacy of the proposed method is further exemplified through an application of the proposed method in power system integration studies. The article provides new insights and better understanding of the WPPs’ limits to deliver reactive power support that can be used for power system stability assessment, particularly long-term voltage stability.

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“…Rotor angle stability is concerned with the system ability to maintain the equilibrium between electromagnetic torque and mechanical torque of each generator in the system. Instability that may result occurs in the form of increasing angular swings of some generators leading to their loss of synchronism with other generators [9]- [12].…”

Section: Power System Stability Overviewmentioning

confidence: 99%

Modeling Issues of Grid-Integrated Wind Farms for Power System Stability Studies

Kawady¹,

Nahhas²

2013

Modeling and Control Aspects of Wind Power Systems

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A novel voltage stability assessment tool to incorporate wind variability

Cited by 15 publications

References 34 publications

Technical Impacts of High Penetration Levels of Wind Power on Power System Stability

Technical Impacts of High Penetration Levels of Wind Power on Power System Stability

Reactive Power Capability Model of Wind Power Plant Using Aggregated Wind Power Collection System

Modeling Issues of Grid-Integrated Wind Farms for Power System Stability Studies

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