Evaluation of dispatching results of power system with high penetration of renewable energy based on Pythagorean fuzzy set and TOPSIS

Li, Yanhe; Wang, Ran; Zhou, Wanpeng; Gao, Bingtuan

doi:10.1016/j.egyr.2022.08.134

Cited by 16 publications

(5 citation statements)

References 6 publications

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“…The principle of this method is: if an indicator of a scheme is closer to the maximum value of the indicator in all schemes, and farther away from the minimum value of the indicator, the score of the indicator will be higher; the score of each indicator of the scheme is multiplied by the weight That is, the comprehensive score is obtained, and the comprehensive score is used to compare the pros and cons of the scheme. Specific steps are as follows [ 17 , 18 ]. Obtain the original matrix (

) according to the data of the evaluation index, then use the maximum value minus the very small index to realize the positive speech, and finally perform normalization processing to obtain the change matrix (

) in equation (13) .…”

Section: Comprehensive Evaluation Model For Investment Priority Of Di...mentioning

confidence: 99%

Multi-scenario investment forecast of new energy projects based on multiple linear regression and comprehensive evaluation model of differentiated project priorities

Tian,

Chen,

Chen

et al. 2024

Heliyon

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) in equation (13) .…”

Section: Comprehensive Evaluation Model For Investment Priority Of Di...mentioning

confidence: 99%

Multi-scenario investment forecast of new energy projects based on multiple linear regression and comprehensive evaluation model of differentiated project priorities

Tian,

Chen,

Chen

et al. 2024

Heliyon

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“…Out of concern about the quick depletion of fossil fuels and their negative environmental impacts, the past decade has witnessed a fast increase in renewable energy generations [1][2][3]. However, the integration of renewable energy into the existing power grid poses new stability challenges due to the different dynamic characteristics of these IBRs from those of synchronous generators [4,5], which, in turn, often leads to curtailing renewable generation in order to maintain system stability [6], causing the waste of clean, renewable generating resources.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Dynamic Interaction Studies in Inverter-Penetrated Power Systems

Li,

2024

Energies

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In a renewable-energy-penetrated power system (RPPS), inverter-based resources (IBRs) pose serious challenges to power system stability due to their completely different dynamic characteristics compared with conventional generators; thus, it is necessary to study the dynamic interactions between IBRs and power systems. Although many research efforts have been dedicated to this topic from both power electronics and power system researchers, some research from the power electronics field treats the external power system as a voltage source with an impedance, therefore ignoring the dynamic characteristics of a power system, while most of the research from the power system field applies simulation-based methods, for which it is difficult to directly interpret the interaction mechanism of IBRs and external system dynamics. Thus, none of these studies can explore the accurate dynamic interaction mechanism between IBRs and power systems, leading to performance degradation of IBR-integrated power systems. Our study takes into account the dynamic characteristics of both IBRs and the external power system, resulting in the development of a new open-loop transfer function for RPPSs. Based on this formulation, it is observed that under certain operating conditions, the dynamic interactions between the inverter and the power system help enhance IBR-penetrated power system stability compared with the case for which the external power system is controlled as a voltage source. The study also reveals how the inverter (phase-locked loop, control parameters, etc.), external power system (network strength) and penetration ratio in an IBR-penetrated power system affect the dynamic interactions between IBRs and the external power system using the proposed quantified interaction indices.

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“…In the future, with the rising proportion of renewable energy consumption, a large number of distributed wind and solar power generation units, battery energy storage, and other equipment will emerge in the new power system [2]. Thus, the current power grid tends to transform from different aspects.…”

Section: Introductionmentioning

confidence: 99%