Results 11 to 20 of about 251,270 (234)

Primary frequency modulation of microgrid based on consistent droop control method

Journal of Physics: Conference Series, 2022
Abstract The rapid development of new energy sources gradually challenges the frequency stability of power systems. This article focuses on how to realize the frequency modulation control of the power grid under the fluctuation of the power grid.
Linlin Hu, Long Fu
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Comprehensive Control Strategy Considering Hybrid Energy Storage for Primary Frequency Modulation

Energies, 2022
The increase in the number of new energy sources connected to the grid has made it difficult for power systems to regulate frequencies. Although battery energy storage can alleviate this problem, battery cycle lives are short, so hybrid energy storage is introduced to assist grid frequency modulation.
Laiqing Yan, Tao Shui, Tailin Xue, Miao Wang, Ning Ma, Kaiyue Li   +5 more
openaire   +3 more sources

Research on the Unit’s Control Strategy of On-line Primary Frequency Modulation

Journal of Physics: Conference Series, 2019
Abstract This paper introduces the basic principle and control structure of primary frequency modulation on the thermal power units, at the same time gives the forming method of primary frequency modulation compensation instruction.
Han Ying Kun, Mou Lin, Liu Jun, Zhang Hui, Yu Qing Bin, Li Yuan Yuan, Yan Qing   +6 more
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Integrated control strategy of BESS in primary frequency modulation considering SOC recovery

IET Renewable Power Generation
Abstract This paper proposes a comprehensive control strategy for a battery energy storage system (BESS) participating in primary frequency modulation (FM) while considering the state of charge (SOC) recovery. On the one hand, when the frequency fluctuations are outside the dead zone of the FM, variable coefficient virtual sag control
Yiqi Liu, Meiru Chen, Bing Xie, Mingfei Ban   +3 more
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Research on Primary Frequency Modulation Online Monitoring and Assessment Management System Under “Master–Sub” Control Station Model

Frontiers in Energy Research, 2022
In a modern power system, to realize the safe operation of units and maintain the frequency stability of the power network, various means of frequency modulation can be adopted.
Zhihao Xu, Chao Liu, Ziyang Song
semanticscholar   +1 more source

Acupuncture modulates the frequency-specific functional connectivity density in primary dysmenorrhea

Frontiers in Neuroscience, 2022
BackgroundThe study aimed to investigate how acupuncture modulates brain activities across multiple frequency bands to achieve therapeutic effects in PDM.MethodsA total of 47 patients with PDM were randomly assigned to the verum acupuncture group and sham acupuncture group with three menstrual cycles of the acupuncture course.
Li-Ying Liu, Xiang Li, Zi-Lei Tian, Qi Zhang, Zhi-Fu Shen, Wei Wei, Xiao-Li Guo, Ling Chen, Meng-Hua Su, Lu Yang, Si-Yi Yu, Jie Yang, Jie Yang   +12 more
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Modulation-frequency acts as a primary cue for auditory stream segregation [PDF]

Learning & Perception, 2013
In our surrounding acoustic world sounds are produced by different sources and interfere with each other before arriving to the ears. A key function of the auditory system is to provide consistent and robust descriptions of the coherent sound groupings and sequences (auditory objects), which likely correspond to the various sound sources in the ...
Szalárdy, Orsolya, Bendixen, Alexandra, Tóth, Dénes, Denham, Susan L., Winkler, István   +4 more
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Modeling Method for Prediction of Primary Frequency Modulation Compensation Capability

Journal of Physics: Conference Series, 2022
Abstract The primary frequency modulation function of thermal power units plays an important role in the frequency stability of the power grid. In order to accurately predict the compensation capacity of primary frequency modulation, this paper introduces a modeling method to predict the compensation ability of primary frequency ...
Yuanyuan Li, Enren Liu, Shuo Shi, Yuqi Wang   +3 more
openaire   +1 more source

Frequency-specific attentional modulation in human primary auditory cortex and midbrain

NeuroImage, 2018
Paying selective attention to an audio frequency selectively enhances activity within primary auditory cortex (PAC) at the tonotopic site (frequency channel) representing that frequency. Animal PAC neurons achieve this 'frequency-specific attentional spotlight' by adapting their frequency tuning, yet comparable evidence in humans is scarce.
Lars Riecke, Judith C. Peters, Giancarlo Valente, Benedikt A. Poser, Valentin G. Kemper, Elia Formisano, Bettina Sorger   +6 more
openaire   +3 more sources

Primary frequency modulation characteristics of photovoltaic power station suitable for grid connection certification

IOP Conference Series: Earth and Environment, 2020
Photovoltaic power station can participate in the primary frequency modulation of the power system for grid connection certification. The primary frequency modulation capability of photovoltaic power station is analyzed when the light intensity changes ...
Changqing Yao, Qing Yan, Zhaodong Liu, Changlai Zhou, Yuanyuan Li, E. Liu, Chao Zhang   +6 more
semanticscholar   +1 more source