Variability of Raindrop Size Distribution during a Regional Freezing Rain Event in the Jianghan Plain of Central China

Lü, Jingjing; Zhou, Yue; Fu, Zhikang; Lu, Chunsong; Huang, Alex Q.; Sun, Jing; Zhao, Yue; Niu, Shengjie

doi:10.1007/s00376-022-2131-1

Cited by 3 publications

(1 citation statement)

References 77 publications

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“…Although this centralized, large grid power supply approach has its insurmountable drawbacks, such as the inability to flexibly track changes in customer load and lead to wasted equipment capacity, remote areas are difficult and costly to provide reliable power supply, large interconnected grid structure is complex, and local failures may spread and lead to large area outages, currently ninety percent of the world's existing power supply is used in this way, complete reconstruction is not It is not realistic to completely rebuild [7,8]. At present, the development of distributed power generation (Distributed Generation) is relatively rapid, and several projects of grid-connected power generation such as photochemical and wind power have been put into use or are under construction in China, which has played a greater role in alleviating the shortage of power at peak hours of the large power grid, and also made outstanding contributions to energy saving and emission reduction, and environmental protection [9]. Distributed generation system access can improve the safety, reliability and flexibility of the grid, which is the future development direction of China's power system, but it cannot replace the traditional centralized main power supply method for a long time in the future [10].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Distribution and Reliability Based on Maximum Capacity Segmented Subscribers on Distribution Lines

Zhang

2023

J. Comb. Math. Comb. Comput.

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The rapid economic progress and widespread use of sophisticated technology elevate the output value per kWh of electricity consumed, underscoring the paramount importance of maintaining an uninterrupted and dependable power supply to avoid substantial economic losses for consumers and society. Investigating the reliability of urban distribution systems emerges not only as a pivotal factor in enhancing power supply quality but also as a cornerstone of electric power modernization, significantly impacting production, technology, and management within the industry while bolstering its economic and social benefits. This study adopts a multifaceted approach: firstly, establishing a methodology for grid-side storage capacity distribution to mitigate substation load factors and implement peak shaving, thereby minimizing load discrepancies. Secondly, it develops a mathematical model encompassing diverse user distributions, employing analytical techniques to derive reliability indices and optimal segment numbers tailored to different user distributions. The research proposes segment optimization based on user distributions, considering both economic viability and reliability, showcasing an interdisciplinary amalgamation of combinatorial principles and scientific computing methodologies. This approach aims to optimize segment distribution, enhancing the reliability and economic feasibility of urban distribution networks through advanced mathematical and computational techniques.

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Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Distribution and Reliability Based on Maximum Capacity Segmented Subscribers on Distribution Lines

Zhang

2023

J. Comb. Math. Comb. Comput.

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Vertical structures and microphysical mechanisms of winter precipitation over the southwestern mountainous area of China

Zhou,

et al. 2024

Atmospheric Research

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Influences of Summer Precipitation Occurrence Time on Raindrop Spectrum Characteristics over the Northeastern Tibetan Plateau

Zhang,

Han,

Zhang

et al. 2023

Atmosphere

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The impact of unique terrain on the microphysics of nighttime precipitation on the Tibetan Plateau (TP) has not been fully appreciated, due to a lack of observation. In this study, we used three raindrop spectrometers deployed in the northeastern TP to analyze the characteristics of the raindrop spectrum during two types of summer precipitation. These two types are classified according to their occurrence times: one starting in the daytime and lasting into the night (DP), while the other started at night and continuing into the daytime (NP). The results show that precipitation with a rain rate ranging from 1.0 to 5.0 mm h−1 contributes the most to the total precipitation, with this contribution rate being higher in the NP than in the DP. All the raindrop spectra follow a single-peak distribution pattern, and the logarithm of the generalized intercept parameter (lgNw) rises with the rain rate. The spectral widths of the DP-n (the nighttime part of the DP) are broader than those of the DP-d (the daytime part of the DP). Moreover, the average lgNw and mass-weighted mean diameter (Dm) over the northeastern TP were 2.65 mm−1 mm−3 and 1.04 mm, respectively, both of which are smaller than their equivalents in the plains. In addition, the gamma distribution can better fit the raindrop size distributions of the two types of precipitation. It is found that precipitation is more likely to occur over the TP at night. The characteristics of NP are reflected in two aspects. First, the sample size of the precipitation at the rain rate of 1.0–5.0 mm h−1 is higher in the NP-n (the nighttime part of the NP), and the precipitation at this rain rate contributes the most to the total precipitation. Second, for the same rain rate, the precipitation particles in the NP-n are larger.

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Variability of Raindrop Size Distribution during a Regional Freezing Rain Event in the Jianghan Plain of Central China

Cited by 3 publications

References 77 publications

Quantitative Analysis of Distribution and Reliability Based on Maximum Capacity Segmented Subscribers on Distribution Lines

Quantitative Analysis of Distribution and Reliability Based on Maximum Capacity Segmented Subscribers on Distribution Lines

Vertical structures and microphysical mechanisms of winter precipitation over the southwestern mountainous area of China

Influences of Summer Precipitation Occurrence Time on Raindrop Spectrum Characteristics over the Northeastern Tibetan Plateau

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