Economic Analysis of Battery Energy Storage Participating in AGC Ancillary Service of Coal-Fired Generating Unit [PDF]
, 2023 [Introduction] In the context of "Dual Carbon", the demands for ancillary services of the electric power system are increasing. However, traditional thermal power units have many problems in AGC control.
Ying ZHONG
core +1 more source
Modeling and simulation of PMSM control system based on SVPWM [PDF]
, 2008 The paper introduces the basic principle of space vector pulse width modulation simply and expatiates a method for implementing space vector pulse width modulation in detail based on MATLAB/SIMULINK, designs modeling and simulation of AC servo system ...
Guo, Y, Jin, J, Wang, Z, Zhan, Y, Zhu, J
core +1 more source
Secondary frequency control of islanded microgrid considering wind and solar stochastics
, 2023 As the high penetration of wind and photovoltaic distributed generation (DG) in the microgrid, the stochastic and low inertia emerge, bringing more challenges especially when the microgrid operates in isolated islands.
Chen, Jikai +4 more
core +1 more source
The comparison of underwater acoustic FM speech communication methods in shallow water channels [PDF]
, 2017 水声语音通信在海洋工程、海洋科考、水下搜救等领域具有广泛应用。与单边带通信、数字编码调制通信相比,调频水声语音通信具有实现简单方便、抗幅度衰落性能好的特点,但浅海水声信道具有的复杂多径效应及噪声严重影响其获得的语音音质,容易出现语音含混、语义难辨等问题。本文通过浅海不同距离、不同多径信道下的海试实验比较了采用非线性解调法和正交解调法的调频语音通信性能,并通过客观语音质量评估PESQ（Perceptual evaluation of speech quality）方法对调频水声语音通信音质进行量化评估 ...
李剑汶, 王小阳, 童峰
core +1 more source
Research for Inertia Response and Primary Frequency Regulation Ability of Wind Turbine [PDF]
, 2023 [Introduction] Large-scale connection of wind power to the power grid poses great challenges to the stability (especially frequency stability) of grid operation.In order to solve the problem of inadequate frequency regulation capability caused by large ...
Jiangtao GUO +4 more
core +1 more source
Research of FM Underwater Acoustic Voice Communication under Multi-path Channels [PDF]
, 2015 随着人类对海洋大规模开发的不断深入，海洋的开发和科研工作对海洋信息传输的需求愈发迫切。大量海洋资源勘探、海洋开发和军事活动等对水声语音通信的需求使得水声语音通信技术日益受到重视。然而水声信道复杂的时空变化特性、多径效应、强噪声等恶劣条件对高性能水声语音通信的研究和设计带来了极大的挑战。 调频(FM,FrequencyModulation)技术是继单边带调制(SSB)后被普遍运用的一种水声语音通信调制解调方法，其具有抗干扰性能好、易于实现等特点。然而，由于浅海信道所具有的强多径、强背景噪声等恶劣条件 ...
曾堃
core
Study on Signal Processing Key Technology of Millimeter FMCW Radar [PDF]
, 2016 毫米波调频连续波(FMCW)雷达质量轻，体积较小，易于高度工业集成，工作频带较宽，分辨率高，具有较好的全天候工作能力，并且抗干扰能力强，从而使得毫米波FMCW雷达在汽车防撞、环境遥感、工业控制、战场监视、精确制导等民用和军用领域中有着广泛的应用前景。因此，本文以毫米波FMCW雷达信号处理为题，展开了如下几个方面的工作： (1)介绍了毫米波FMCW雷达的系统结构；对线性调频信号模型进行了分析，并比较了匹配滤波方法与去斜方法，给出了线性调频波形的模糊函数；介绍了锯齿波与三角波的运动参数估计原理 ...
陶明亮
core
Orbitally Driven Anomalous Thermal Transport Under High Pressure in Gallium Nitride
Rare Metals, EarlyView.ABSTRACT Extreme conditions such as high pressure offer opportunities for innovative materials design and applications. For over a century, studies on thermal transport in crystals under high hydrostatic pressure have shown that lattice thermal conductivity generally exhibits a monotonic increase with pressure.
Zong‐Hao Yuan +8 more
wiley +1 more source
Economic Research on Energy Storage Auxiliary Frequency Regulation of Lithium Iron Phosphate Battery for 2 × 600 MW Coal-fired Unit in Guangdong [PDF]
, 2023 [Introduction] In view of the economic benefits of AGC frequency regulation project of combined energy storage in Guangdong coal-fired power plant, the method of establishing typical engineering cases is demonstrated. [Method] This article summarized the
Binsi LI +4 more
core +1 more source
MXene‐Based Electromagnetic Attenuation Materials in Microwave and Terahertz Bands
Rare Metals, EarlyView.ABSTRACT MXenes exhibit considerable potential for developing high‐performance electromagnetic (EM) shielding and absorption materials operating across microwave and terahertz frequencies, due to their tunable surface chemistry and exceptional charge carrier transport properties.
Guozheng Zhang +9 more
wiley +1 more source