Results 1 to 10 of about 760 (113)
全球能源互联网, 2021 相比于柔性直流输电（VSC-HVDC）送出方案，送端采用不控整流器（diode rectifier，DR）的DR-HVDC方案具有损耗低、体积小和成本低的优点，是未来海上风电送出技术的重要发展方向之一。为了解决黑启动和海上交流电压调控问题，现有的DR-HVDC拓扑主要采用海上平台装设储能、系统增加交流联络线路、送端换流站并联VSC三种方案。以深远海海上风电送出为背景，对上述三种DR-HVDC拓扑方案进行了经济性分析，并与VSC-HVDC方案进行比较。采用了全寿命周期成本分析（life cycle ...
李贤育 +6 more
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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
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Impact Analysis of Energy Storage Participating in Peak Shaving and Valley Filling for Distribution Network on Network Loss and Voltage Deviation [PDF]
, 2023 [Introduction] The application scenarios of peak shaving and valley filling by energy storage connected to the distribution network are studied to clarify the influence of energy storage access on network losses and voltage quality on the distribution ...
Fuchun LI +5 more
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Capacity Sizing Method and Economic Analysis of Energy Storage in Substations Meeting N-1 Criterion of Main Transformers [PDF]
, 2023 [Introduction] In order to solve the problem of the short-term heavy load of main transformers in substations caused by the high peak load of the power grid with the relatively reasonable average-load-rate and increasing utilization hours of the ...
Huiling XIE +3 more
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Research on Optimal Allocation of Multi-Energy Complementary Project of Wind-Solar-Thermal Integration [PDF]
, 2022 Multi-energy complementary project of wind-solar-thermal integration can play a coordinating and mutually beneficial role among different generations, and is one of the implementation paths for safe and efficient use of renewable energy, and achieving ...
BI Sheng +5 more
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分布鲁棒优化在综合能源系统调度与规划中的应用综述 [PDF]
, 2023 随着大量分布式电源、多能负荷等接入综合能源系统，源侧与荷侧的不确定性给综合能源系统规划与运行带来了挑战。如何针对这些不确定因子搭建相应的模型，形成安全、经济、高效的运行方案，是目前亟需解决的问题。从不确定性问题入手，系统阐述了分布鲁棒优化理论在综合能源系统中的应用，总结了其典型的应用场景，并与电力系统进行对比。其中，以基于矩信息和基于概率距离的分布鲁棒优化模型为例，从模型、求解方法以及应用等方面分析了各自的优缺点。最后，结合当前综合能源系统的发展趋势 ...
于馨玮, 仉志华, 陈继明*
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Communication service priority in smart substation and its queue scheduling method [PDF]
, 2021 The future development of power grid puts forward the requirement of unified network for all the communication services in smart substation.In order to meet the different quality of service (QoS) requirements of various communication services, as well as
Bijun PENG +5 more
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±1100 kV特高压直流工程换流变最优短路阻抗 [PDF]
全球能源互联网, 2018 换流变压器是直流输电系统中最重要的设备之一，短路阻抗是确定整个直流系统成套设计方案的最重要输入条件，对直流主回路参数、短路电流、绝缘配合、无功配置、设备制造、大件运输、技术经济性等具有决定性作用。定量分析了±1100 kV特高压直流工程中以上因素对阻抗选择的影响，并提出了全寿命周期成本分析方法。基于此分析，以±1100 kV昌吉—古泉特高压直流工程为例，提出了该工程的最优阻抗推荐值，并应用于实际工程。
郭贤珊, 付颖
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中西医结合护理, 2023 Objective To evaluate the information tracing system-based five-in-one full-cycle management of precision surgical instruments. Methods A five-in-one full-cycle management of precision surgical instruments was established based on information tracing ...
XU Yuanle (许远乐) +3 more
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, 2023 随着新能源并网比例持续上升，电池储能系统（battery energy storage system，BESS）的发展备受关注。逐渐完善其激励政策和市场机制，提升其经济效益，对其未来发展具有重要意义。但目前BESS的不同物理特性、政策和市场机制、退役电池的处理方式等问题仍亟待深入研究。分析了BESS的研究现状，包括不同物理特性、参与电力系统价值评估现状。从国内外储能政策的提出、电力市场的运营、碳市场的交易等方面综述了国内外BESS需求及市场机制，并分析了梯次利用BESS的适用场景与经济效益 ...
程林*, 索克兰, 许鹤麟, 黄文瑞
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