Analysis of the Relationship Between Inertia and Energy of High-Proportion Wind Power Grid-Connected Power System

Yu-chi, Zhang; Liu, Cheng; Zhao, Xiaoyang; Diao, Shuo; Yu, Fangtong

doi:10.1109/aeees51875.2021.9403226

Cited by 1 publication

(2 citation statements)

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“…The ALARP standard divides the risk into three zones, namely, the unacceptable zone, the reasonably feasible minimum zone, and the negligible zone. The ALARP criterion consists of two risk boundaries; one is an unacceptable risk level and the other is a negligible-risk level [30,31]. In this paper, the power system is divided into three levels and contains two risk lines, as follows: high-risk level, medium-risk level, low-risk level, the unacceptable high-risk line and the negligible low-risk horizontal line.…”

Section: Comprehensive Risk Indicator (R Cri )mentioning

confidence: 99%

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Multi-Angle Reliability Evaluation of Grid-Connected Wind Farms with Energy Storage Based on Latin Hypercube Important Sampling

Yang,

Zhang,

Wang

et al. 2023

Energies

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Aiming to combat the problems of slow speed and poor accuracy of reliability evaluation of the power system in wind farms with energy storage, this paper proposes a method of reliability evaluation based on Latin hypercube important sampling (LHIS). Firstly, we aimed to establish the Latin hypercube important sampling evaluation model by combining the Latin hypercube sampling method with the important sampling method. Secondly, we aimed to optimize the sample probability distribution of the components and conduct hierarchical sampling of the system. Then, the comprehensive risk indicator (CRI) was proposed to evaluate the operational risk and the wind storage generation interrupted energy benefit (WSGIEB) was proposed to evaluate the contribution of the reliability. Finally, simulation experiments were carried out through various power system operation scenarios. The simulation results show that the proposed method is 47% higher than the improving importance sampling method (IM-IS) in evaluation speed and 33% higher than the improving importance sampling method in calculation accuracy.

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Section: Comprehensive Risk Indicator (R Cri )mentioning

confidence: 99%

“…The negligible low-risk horizontal line is defined as the product of the lowest level of failure probability and the lowest level of failure consequence [30,31]. The lowest level of failure probability is the average value of national line failure over the past years.…”

Section: Comprehensive Risk Indicator (R Cri )mentioning

confidence: 99%