Results 91 to 100 of about 8,462 (167)
Typical feature extraction and modeling of complex power dynamic load signals [PDF]
The scale of clean energy and electric energy substitution is expanding with the rapid development of China's new power system and the steady introduction of “dual carbon” strategic goals.
Jing WANG, Jingxia CHEN
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Gaoya dianqi, 2022 随着电力物联网的高速发展，庞大数量的分布式传感器的供电问题成为了亟待解决的技术难题。摩擦纳米发电机作为一种高效且低成本的新型供能技术，在自驱动传感领域具有极大的应用前景。文中提出并研制了一种面向电力物联网应用环境下的宽风速摩擦纳米发电机自驱动系统，创新地引入了同心双转轴的结构设计，使其在宽风速范围下能够有效收集风能并保证优异的输出性能。实验阶段搭建了基于风力涡轮机的风力测试平台，测试了不同风速下摩擦纳米发电机的基本电气性能和负载特性。最后构建并演示了所设计的摩擦纳米发电机自驱动系统 ...
冯运 +6 more
doaj
A Wireless Multi-Objective Power Sharing Method for Energy Storage System in DC Micro-Grid Considering Oscillatory-Type Power [PDF]
As the construction of new power systems, DC microgrids will become an important part of the distribution network. As AC load connecting to DC microgrids, the oscillating power will enter the DC system, which affects the power distribution of energy ...
LU Gang +4 more
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Gaoya dianqi, 2007 阐述了新型静止无功发生器（STATCOM）的基本原理,应用滑模变结构理论与模糊控制理论,设计了能同时改善电力系统功角稳定与装设点电压动态性能的STATCOM模糊滑模控制器（FSMC）。针对含STATCOM的单机-无穷大系统进行的电力系统暂态仿真结果表明:与常规STATCOM控制器相比,设计的模糊滑模控制器能更有效地提高电力系统的稳定性,改善动态响应品质。
茅靖峰, 孙玉坤, 吴爱华
doaj
Model Establishment and Power Optimization of Vertical Gravity Energy Storage System [PDF]
[Objective] With the proposal of the "carbon peak" and "carbon neutrality" goals, the global push for the transformation of the energy structure is accelerating the construction of new power systems dominated by renewable energy.
Jianfeng HONG +5 more
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Gaoya dianqi随着信息通信技术在电力系统中的广泛应用，传统电网由仅分析物理系统或信息空间本身向新型电力系统下电力信息物理系统（cyber-physical power system，CPPS）方向转变。文中基于复杂网络理论，通过模拟连锁故障下能量流与信息流的交互作用，提出了一种关键电力节点与信息节点的辨识方法。首先根据CPPS中能量流与信息流之间相互耦合关系，结合电力网潮流与信息网时延变化相互之间发生的连锁故障的演变过程，构建了CPPS一二次系统相互依存网络模型 ...
李希喆, 辛培哲, 江璟
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Gaoya dianqi, 2018 为大型风电场配置适当容量的储能系统,可以有效提高电网对风电的接纳能力。文中提出了一种由压缩空气储能和蓄电池组成的新型混合储能系统,并将其用于平衡风功率和风电场预测功率之间的偏差。基于低通滤波方法将功率偏差进行分解,得到两类储能系统的控制输出功率,以采取相应的控制机制补偿预测误差。在计及蓄电池损耗特性的基础上,建立了蓄电池的寿命评估模型。通过分析混合储能系统的成本结构,建立了该系统的全寿命周期成本计算模型。以典型风电场为例对不同储能方案进行的对比分析验证了所述模型和方法的可行性。算例结果表明 ...
陈科彬 +3 more
doaj
Gaoya dianqi随着新能源在电力系统中的比例不断增加，其难预测特性使得新型电力系统的电压稳定性面临严峻挑战。为此，提出一种于高比例新能源馈入下计及系统静态电压稳定的无功优化方法。首先，通过分析无功补偿容量与电压静稳L指标的关系，推导综合L-Q灵敏度指标（comprehensive L-Q sensitivity index），使系统于等量无功注入时电压支撑强度提升。同时，兼顾系统运行安全及经济运行构建多目标无功优化模型，采用多目标差分进化算法（multi-objective differential evolution
傅国斌 +6 more
doaj
Optimal Operation of Residential Microgrids Based on a Robust Model Using Information Gap Decision Theory [PDF]
ObjectivesResidential microgrids are an important part of the new-type power system, and their optimal operation is crucial for improving the utilization efficiency of renewable energy and reducing system operating costs.
LIU Shilin, LUO Zonglong
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Multi-Time Scale Optimization Strategy for New Distribution System Oriented to Photovoltaic Consumption and Low Carbon Demand Response of Ice Storage Air Conditioning Groups [PDF]
ObjectivesIn view of the limitations of the traditional distribution network demand response model in regulating the flexible and controllable resources on the load side, especially ignoring the unique and efficient resources such as ice storage air ...
GUO Junhong +5 more
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